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subfolder_0/A FMRI Study of Stages of Yoga Meditation Described in Traditional Text.txt ADDED
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+ Volume 5 • Issue 3 • 1000185
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+ J Psychol Psychother
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+ ISSN: 2161-0487 JPPT, an open access journal
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+ Research Article
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+ Open Access
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+ Telles et al., J Psychol Psychother 2014, 5:3
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+ http://dx.doi.org/10.4172/2161-0487.1000185
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+ Research Article
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+ Open Access
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+ Psychology & Psychotherapy
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+ J
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+ u
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+ e
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+ a
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+ p
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+ y
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+ ISSN: 2161-0487
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+ A FMRI Study of Stages of Yoga Meditation Described in Traditional Text
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+ Shirley Telles1,2*, Nilkamal Singh1, K.V. Naveen2, Singh Deepeshwar2, Subramanya Pailoor2, N.K. Manjunath2, Lija George 2,3, Rose Dawn3
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+ and Acharya Balkrishna1
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+ 1PatanjaliResearch Foundation, Haridwar, India
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+ 2ICMR Center for Advanced Research in Yoga and Neurophysiology, S-VYASA, Bengaluru, India
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+ 3Department of Neuro-imaging and Interventional Radiology, NIMHANS, Bengaluru, India
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+ Abstract
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+ Objectives: .Meditation is described in traditional yoga texts as three stages, which follow each other in
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+ sequence: (i) Focused attention (FA), (ii) Focused attention on the object of meditation (MF), and (iii) Meditation with
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+ one-pointed focused attention without effort (ME). When not in meditation the mind is considered to be in a state of
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+ normal consciousness characterized by random thinking (RT). The objective of the present study was to determine
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+ the brain areas activated during the three stages of meditation compared to the control state using fMRI.
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+ Methods: Functional magnetic resonance images were acquired from twenty-six right handed meditators during
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+ MF, ME and random thinking (RT) for comparison. Ten of them were experienced (average age ± SD, 37.7 ± 13.4
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+ years; 9 males) with 6048 hours of meditation, whereas 16 (group average age ± SD, 23.5 ± 2.3 years; all males)
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+ were less experienced, with 288 hours of meditation. During the fMRI recordings the participants practiced RT,
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+ non-meditative focused thinking (FA), MF and ME, each lasting for 2 minutes. Brain areas activated during the
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+ intervention were scanned using a 3.0-Tesla Philips-MRI scanner.
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+ Results: During the third phase of meditation (ME) the experienced meditators alone showed significant
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+ activation in the right middle temporal cortex (rMTC), right inferior frontal cortex (rIFC) and left lateral orbital gyrus
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+ (LOG) (p < 0.05), Bonferroni adjusted t-tests for unpaired data, comparing ME and random thinking.
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+ Conclusions: These changes suggest that ME is associated with sustained attention, memory, semantic
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+ cognition, creativity and an increased ability to detach mentally.
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+ Keywords: Meditation; Yoga; Traditional texts; Random thinking;
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+ fMRI; Focused attention; Effortless focused attention
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+ Introduction
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+ Meditation can be considered to be a training in awareness which
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+ produces definite changes in perception, attention, and cognition [1].
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+ Meditation is also recognized as a specific consciousness state in which
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+ deep relaxation and increased internalized attention co-exist [2]. Perhaps
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+ related to this is the concept that directing and regulating attention are
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+ considered an inherent part of different meditation techniques [3].
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+ Multiple neuroimaging studies on meditation have attempted to
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+ describe the cognitive processes involved. The most common examples
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+ are of focused attention and open monitoring meditation [4,5]. There
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+ appears to be no neuroimaging study which has categorized the process
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+ of meditation based on traditional texts whether Buddhist, Yoga, Chinese
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+ or any others. The present study aimed to compare three stages of yoga
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+ meditation described in Indian yoga texts with the mental state that is
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+ described to exist when not in meditation. This non-meditative state is
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+ characterized by both mind-wandering and switching of attention at
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+ random. It has been described in traditional texts as the characteristic
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+ mental state when the mind is not directed or instructed (Cancalata in
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+ Sanskrit; Bhagavad Gita, Circa 500 B.C.; Chapter 6, Verse 34; simplified
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+ here as random thinking or RT) [6]. This was considered as the control
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+ state against which the stages of meditation were compared. In an
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+ attempt to describe this mental state with contemporary descriptions it
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+ can be considered as normal consciousness [7].
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+ Traditionally it is mentioned that in order to reach a meditative
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+ state attention should be focused and maintained. In order to do this
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+ different meditation techniques use varied objects, mantras as well as
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+ interoception [8].
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+ As a practitioner attempts to meditate there are three successive
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+ *Corresponding author: Shirley Telles, Patanjali Research Foundation,
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+ PatanjaliYogpeeth, Haridwar, Uttarakhand 249405, India. Tel: +91 01334 244805;
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+ Telefax: +91-1334-24008, E-mail: [email protected]
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+ Received April 07, 2014; Accepted May 26, 2015; Published June 02, 2015
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+ Citation: Telles S, Singh N, Naveen KV, Deepeshwar S, Pailoor S, et al. (2015) A
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+ FMRI Study of Stages of Yoga Meditation Described in Traditional Text. J Psychol
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+ Psychother 5: 185. doi: 10.4172/2161-0487.1000185
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+ Copyright: © 2015 Telles S, et al. This is an open-access article distributed under
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+ the terms of the Creative Commons Attribution License, which permits unrestricted
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+ use, distribution, and reproduction in any medium, provided the original author and
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+ source are credited.
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+ stages, these are: (i) Focused attention (FA), (ii) Meditative focusing
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+ (MF) and (iii) Pure meditation (ME). In FA the practitioner attempts
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+ to return to focus when the mind wanders and attention is directed
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+ to several thoughts about the same subject (in the present study the
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+ thoughts were on the concepts of meditation). During Meditative
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+ focusing (MF) focusing of attention is directed to a single thought
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+ (in the present case the Sanskrit syllable ‘Om’), with the exclusion of
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+ all distractions, which requires effort. Pure meditation (ME) occurs
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+ as the practitioner continues with the second stage the stage of pure
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+ meditation is spontaneously reached, where attention is on a single
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+ thought (in this case the syllable ‘Om) but there is no effort involved.
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+ The descriptions of each stage of meditation in the traditional texts
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+ give greater clarity about the processes involved. The first stage (FA)
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+ is called ekagrata in Sanskrit (Bhagavad Gita, Chapter 6, Verse 12),
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+ during which attention is directed to a series of associated thoughts.
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+ As mentioned above if the thoughts are related to meditation,
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+ the person would then be able to progress to the next two stages,
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+ dharana (MF) and dhyana (ME). Dharana (or focusing with effort), is
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+ described as ‘confining the mind within a limited mental area’ (‘desha-
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+ bandhashchittasya dharana’, Patanjali’s Yoga Sutras, the sage Patanjali
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+ Citation: Telles S, Singh N, Naveen KV, Deepeshwar S, Pailoor S, et al. (2015) A FMRI Study of Stages of Yoga Meditation Described in
134
+ Traditional Text. J Psychol Psychother 5: 185. doi: 10.4172/2161-0487.1000185
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+ Page 2 of 6
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+ Volume 5 • Issue 3 • 1000185
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+ J Psychol Psychother
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+ ISSN: 2161-0487 JPPT, an open access journal
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+ Circa 900 B.C.; Chapter 3, Verse 1) [9]. The next state is dhyana or
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+ effortless expansion called pure meditation This state is described as
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+ ‘the uninterrupted flow of the mind towards the object chosen for
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+ meditation’(‘tatra pratyayaikatanata dhyanam’, Patanjali’s Yoga Sutras,
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+ the sage Patanjali Circa 900 B.C.; Chapter 3, Verse 2).
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+ The difference between dharana and dhyana in using effort to
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+ direct attention is supported by data which show a shift towards vagal
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+ dominance during dhyana [10]. Apart from the autonomic variables
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+ there have been electrophysiological recordings of short [11], middle
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+ [12] and long latency [13] auditory evoked potentials during FA, MF,
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+ ME as well as during the control state (RT) of random thinking. The
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+ changes were both in the time taken for information transmission (i.e.,
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+ the latency) as well as in the number of neurons recruited (indicated by
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+ the amplitude). However auditory evoked potentials were specific for
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+ the auditory pathway and the neural generators were correspondingly
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+ specific to that pathway. Also evoked potential recordings do not
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+ give spatial and temporal resolution which fMRI provides to localize
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+ changes in brain functions.
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+ Hence the present study was designed to compare the parts of the
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+ brain involved in three successive stages of traditionally described yoga
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+ meditation (i.e., FA, MF and ME) each with the mind wandering state
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+ (RT) using fMRI.
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+ Methods
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+ Participants
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+ The participants were twenty-six right handed trained meditators.
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+ Ten of them (9 males; group average age ± SD; 37.7 ± 13.4 years)
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+ had 7 years of experience of meditation {(7 years × 12 months × 24
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+ days × 180 minutes)/60} = 6048 hours), practiced as the two stages,
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+ meditative focusing (ME) leading to pure meditation (ME). The other
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+ sixteen meditators had 18 months experience of the same meditation.
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+ They were all males and had an average age of 23.5 ± 2.3 years with
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+ experience of 288 hours {(18 month × 24 days × 40 minutes)/60} = 288
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+ hours). The two groups significantly differed with respect to age (t =
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+ 4.11 ; df = 24 ; p = 0.0003). Baseline characteristics of the experienced
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+ and less experienced meditators are given in Table 1. Participants were
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+ recruited for the trial by notices on the notice boards of the institution,
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+ the Indian Council of Medical Research Center for Advanced Research
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+ (ICMR-CAR), located in Bangalore, south India. This center is attached
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+ to a residential yoga training center where meditators receive training
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+ in meditation and come for advanced retreats. There was no incentive
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+ to take part in the study and while the study design was explained to
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+ the participants, the research question was not. To be included in the
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+ trial participants had to meet the following criteria (i) normal health
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+ based on a routine physical and mental health examination, (ii) right
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+ hand dominance based on a routine hand dominance inventory [14],
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+ and (iii) regularity in their practice of meditation, where regularity
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+ meant practicing for at least 40 minutes a day for six days in a week.
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+ The experienced meditators practiced for 180 minutes in a day while
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+ the inexperienced meditators practiced for 40 minutes each day.
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+ Pre-determined exclusion criteria were: (i) if they were not able to
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+ be scanned due to claustrophobia, metal implants, a pacemaker, or
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+ pregnancy, and (ii) inability to meditate in the scanner environment.
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+ None of the participants had to be excluded for these reasons. The
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+ study was approved by the Institutions’ ethics committees of the (i)
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+ Indian Council of Medical Research Center for Advanced Research
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+ (ICMR-CAR), and (ii) the National Institute of Mental Health and
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+ Neurosciences (NIMHANS), both located in Bangalore in south
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+ India. Signed informed consent was obtained from all the participants
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+ following the guidelines of the Indian Council of Medical Research.
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+ Intervention
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+ During the fMRI recordings, the participants were asked to practice
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+ the control and the three meditation sessions in the following order
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+ i.e., random thinking, non-meditative focused thinking, meditative
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+ focusing, and effortless meditation or pure meditation, each lasting for
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+ 2 min. The oral instructions were given from the control room through
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+ noise-canceling electrostatic headphones.
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+ Random thinking
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+ Participants were asked to keep their eyes closed and allow
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+ their thoughts to wander freely as they listened to a compiled audio
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+ CD consisting of brief periods of conversation, announcements,
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+ advertisements and talks on diverse topics recorded from a local radio
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+ station transmission. These conversations were not connected and
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+ hence it was thought that listening to them could induce a state of
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+ random thinking.
213
+ Non-meditative focused thinking (FT)
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+ Participants were asked to keep their eyes closed and listened to a
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+ pre-recorded lecture on concepts of meditation. This was intended to
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+ induce a state of non-meditative focusing.
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+ Meditative focusing (MF)
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+ During training participants were asked to open their eyes and
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+ gaze at the Sanskrit syllable ‘Om’ as it is written in Sanskrit. However
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+ in the scanner they were asked to keep their eyes closed. During this
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+ time guided instructions through a pre-recorded audio tape required
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+ them to direct their thoughts to physical attributes of the syllable, i.e.,
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+ the shape, the size and the color. The main emphasis during meditative
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+ focusing was that thoughts are consciously brought back if they wander
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+ to the single thought of ‘Om’.
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+ Effortless meditation or pure meditation (ME)
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+ During this session participants were instructed to keep their eyes
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+ closed and dwell on thoughts of ‘Om’
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+ , particularly on the subtle (rather
230
+ than physical) attributes and connotations of the syllable. This would
231
+ gradually allow the participants to experience brief periods of silence,
232
+ which they reported after the session.
233
+ Variables
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+ Experienced meditators (n = 10)
235
+ Less experienced meditators (n = 16)
236
+ Education
237
+ A minimum of 17 years
238
+ A minimum of 17 years
239
+ Age (mean ± S.D)
240
+ 37.7 ± 13.4 years
241
+ 23.5 ± 2.3 years
242
+ Gender (M/F)
243
+ 9 /1
244
+ 16/0
245
+ Meditation practice (minutes/day)
246
+ 180
247
+ 40
248
+ Meditation practice (total number of months)
249
+ 84
250
+ 18
251
+ Hours of meditation (total hours)
252
+ 6084
253
+ 288
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+ Table 1: Baseline Characteristics of the Experienced and Less Experienced Meditators. Values are Group Mean.
255
+ Citation: Telles S, Singh N, Naveen KV, Deepeshwar S, Pailoor S, et al. (2015) A FMRI Study of Stages of Yoga Meditation Described in
256
+ Traditional Text. J Psychol Psychother 5: 185. doi: 10.4172/2161-0487.1000185
257
+ Page 3 of 6
258
+ Volume 5 • Issue 3 • 1000185
259
+ J Psychol Psychother
260
+ ISSN: 2161-0487 JPPT, an open access journal
261
+ Design
262
+ A block design was used. The paradigm consisted of two repeat
263
+ sessions of 8 minutes duration. The session was repeated on another day
264
+ at the same time of the day. Each session had 4 blocks corresponding to
265
+ Random Thinking (RT), Focusing (FC), Meditative Focusing (MF) and
266
+ ‘pure’ Meditation (ME) in a fixed sequence, for 120 seconds per block,
267
+ 20 dynamic scans per block (20 × 4 = 80 dynamic scans in one session);
268
+ hence in total 160 dynamic scans from the 2 sessions were used for
269
+ analysis. Participants had been informed that a simple instruction to
270
+ change their mental state would be given using the intercom to avoid
271
+ their getting startled.
272
+ The sequence (i.e., RT-FC-MF-ME) was fixed. The fact that it
273
+ was not randomized is a disadvantage of the study. However (i) this
274
+ sequence is pre-determined in the traditional descriptions [9], and
275
+ (ii) participants had been trained to follow a fixed sequence during
276
+ familiarization sessions in the scanner environment.
277
+ For one month prior to the experiment the participants were trained
278
+ to meditate in a fabricated ‘simulated scanner’ which was a cylinder
279
+ of comparable dimensions. During this time the participants were
280
+ required to listen to pre-recorded ‘scanner noise’ which was recorded
281
+ during actual acquisition. These familiarization sessions were of the
282
+ same duration as the actual recording sessions. The practice session
283
+ included two trials : that is 2 minute sessions for each of the 4 states,
284
+ practiced in 16 minute sessions, 5 days a week during the month.
285
+ Assessments
286
+ Functional image data acquisition and reduction
287
+ MRI scanning was conducted using a 3.0-Tesla Phillips-MRI head
288
+ scanner with an 8 channel head frequency coil. To minimize motion
289
+ artifact the participants’ head was padded with foam coil. Functional
290
+ images were acquired in 160 slices rotated about 30o above the anterior-
291
+ posterior commissure (AC-PC) using a T2*-weighted EPI pulse
292
+ sequence (repetition time, TR=3000; echo time, TE=35;flip angle,
293
+ FA=90°;field of view, FOV=230×230×128 mm; slice thickness = 8mm,
294
+ with 0mm slice gap). The 30oline offset was intended to reduce signal
295
+ loss due to susceptibility artifact in the orbito-frontal cortex [15]. Scan
296
+ acquisition was time-locked to the onset of each trial. Before functional
297
+ scanning, a T1-weighted MP-RAGE high resolution 3D anatomical
298
+ image was acquired. There were 160 slices, 1 mm thick; TR=8.1 ms;
299
+ TE=3.7 ms; FA=90°; FOV=240×240×160 mm. The purpose was to
300
+ evaluate structural abnormalities (there were none) and to allow for
301
+ transformation of functional data into standard reporting space for
302
+ spatial normalization [16]. With the block design paradigm used,
303
+ which is detailed above and in Figure 1,160 dynamic scans from the 2
304
+ sessions were obtained.
305
+ Imaging data were processed using Brain Voyager (BVQX 2.1;
306
+ Brain Innovation, Maastricht, The Netherlands). Preprocessing
307
+ included (i) 3-D motion correction using trilinear interpolation, (ii)
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+ Figure 1: Experienced meditators (n = 10): Areas showing supra threshold activation in right middle temporal cortex, right inferior frontal cortex and left orbital gyrus in
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+ meditation (p < 0.05, t-tests for unpaired data Bonferroni adjusted following one-way ANOVA).
310
+ Citation: Telles S, Singh N, Naveen KV, Deepeshwar S, Pailoor S, et al. (2015) A FMRI Study of Stages of Yoga Meditation Described in
311
+ Traditional Text. J Psychol Psychother 5: 185. doi: 10.4172/2161-0487.1000185
312
+ Page 4 of 6
313
+ Volume 5 • Issue 3 • 1000185
314
+ J Psychol Psychother
315
+ ISSN: 2161-0487 JPPT, an open access journal
316
+ slice-scan time correction to temporally realign the slices, (iii) spatial
317
+ smoothing using a 3D 6mm full width at half maximum (FWHM)
318
+ Gaussian filter, (iv) voxel-wise linear detrending, and (v) temporal
319
+ filtering of frequencies below 3 cycles per time course to remove low
320
+ frequency non-linear drifts. Registration of the functional images to
321
+ anatomical volumes was completed with standard BVQX methods.
322
+ For group-wise analysis, spatial normalization of functional images
323
+ was carried out by scaling the functional images into standard
324
+ Talairach space.
325
+ Self–Report of Meditation on Visual Analog Scales (VAS)
326
+ At the end of each session participants were asked to rate the extent
327
+ that they felt they were able to follow instructions on a liner continuous
328
+ scale from 0 to 10, where 0 meant ‘not being able to at all’ and 10 meant
329
+ ‘being able to do so perfectly’
330
+ .
331
+ Data Analysis
332
+ Imaging data were analyzed using whole brain voxel-wise statistical
333
+ tests (Brain Innovation Version 2.1, The Netherlands). The Talairach
334
+ Client (Version 2.4.3) was used to assign Talairach atlas 3D co-
335
+ ordinates and overlay statistical maps onto the reference anatomical
336
+ image, transformed as standard reporting co-ordinates.
337
+ A General Linear Model was applied for group whole-brain
338
+ analysis. Following separate one-factor ANOVAs for each of the two
339
+ groups, separate t-tests were carried out to compare overlay values
340
+ of (i) Focused attention (FA), (ii) Meditative Focusing (MF), and
341
+ (iii) Pure Meditation (ME), where each of them were compared with
342
+ Random Thinking (RT) for comparison, and for any change. The level
343
+ of significance was p < 0.01 with a cluster threshold of 10. Comparisons
344
+ were made with t-tests which were Bonferroni adjusted or FDR
345
+ corrected to reduce Type I errors
346
+ Results
347
+ (i) Self-rated ability to switch between states on the VAS: All
348
+ participants rated their ability to switch between states as 7 or
349
+ more on the 10 point scale, where 0 meant ‘not able to switch at
350
+ all’ and 10 meant ‘able to switch perfectly without any difficulty
351
+ at all’ [17]. There was no further analysis performed on the self-
352
+ reports,
353
+ (ii) The imaging data of the two sets of participants, (a) experienced
354
+ meditators with 6048 hours of meditation practice, and (b) the
355
+ less experienced meditators with 288 hours of experience of
356
+ meditation practice:
357
+ Experienced meditators
358
+ The 10 experienced meditators showed a significant change in the
359
+ comparison between pure meditation (ME) and random thinking (RT)
360
+ (p = 0.049, one tailed); One Factor ANOVA followed by Bonferroni
361
+ adjusted t tests). Areas showing supra-threshold activation are
362
+ mentioned in Table 2 and shown in Figure 1.
363
+ Less experienced meditators
364
+ There were no significant areas of activation for the three
365
+ comparisons, which is (i) RT with FA, and (ii) RT with MF and (iii)
366
+ RT with ME (p > 0.05); One Factor ANOVA after Bonferroni adjusted
367
+ t tests.
368
+ Discussion
369
+ Meditators with a total of 6048 (7 years) of experience of meditation
370
+ on the Sanskrit syllable “Om’ showed significant activation in the right
371
+ medial temporal cortex (rMTG), right inferior frontal cortex (rIFG),
372
+ and left orbital gyrus (LOG) during the stage of effortless or “pure”
373
+ meditation. The comparison was with a period of random thinking.
374
+ There were no changes during meditation with focusing or during
375
+ focusing alone compared to random thinking.
376
+ In the present study the activation was observed in the right middle
377
+ temporal cortex and right inferior frontal cortex which has been
378
+ observed in earlier studies on meditation [18]. The medial temporal
379
+ cortex is known to be involved in cognition and specifically in memory
380
+ processing [19,20]. Other aspects of cognition required for memory such
381
+ as attentional control are regulated by the inferior frontal gyrus [21,22].
382
+ Multichannel EEG of an advanced meditator during four different
383
+ meditations using Low Resolution Electromagnetic Tomography
384
+ (LORETA) was carried out. Functional images showed activation
385
+ in the right fronto-temporal region along with other areas. The right
386
+ fronto-temporal areas are considered to be involved in self-induced
387
+ meditational dissolution and reconstitution of the experience of the self.
388
+ Hence the results of the present and the earlier study [18] suggest that
389
+ meditation activates brain areas concerned with self-representation.
390
+ While the LORETA study [18] demonstrated activity in the right
391
+ fronto-temporal region, the present study showed activity specifically
392
+ in the right inferior frontal cortex. These results are comparable with
393
+ an eLORETA study. Here eLORETA was used to compare differences in
394
+ cortical source activity in intermediate (average experience 4 years) and
395
+ advanced (average experience 30 years) Australian meditators of the
396
+ Satyananda Yoga tradition [23]. Assessments were made during a body
397
+ steadiness meditation, mantra meditation and non meditation mental
398
+ calculation. Across all conditions differences were greatest in the same
399
+ regions as the present study which included the right inferior frontal
400
+ gyrus, and right anterior temporal lobe.
401
+ The above studies [18,23] demonstrated changes in the right inferior
402
+ frontal gyrus and temporal region. The activation of the rMTG reported
403
+ in the present study is in contrast to the findings of a report [24] which
404
+ measured the performance of participants during an fMRI adapted
405
+ Stroop word-color task. The comparison was between meditators and
406
+ non-meditators. The Stroop task performance was comparable for the
407
+ two groups. The MTG among other regions showed greater activity
408
+ in the non-meditators than meditators during the incongruent task
409
+ condition. The absence of activity during meditation in these areas
410
+ was considered to suggest that meditation improves efficiency possibly
411
+ through sustained attention and impulse control. The fact that the
412
+ Sl. No.
413
+ Activation Area
414
+ Brodmann Area
415
+ L/Ra
416
+ Talaraich Coordinatesb (mm)
417
+ t-test
418
+ X
419
+ Y
420
+ Z
421
+ p - valueb (uncorrected)
422
+ Bonferroni corrected
423
+ Right middle temporal cortex (rMTC)
424
+ 37
425
+ R
426
+ 66
427
+ -54
428
+ 0
429
+ p < 0.000002
430
+ p < 0.049
431
+ Right inferior frontal cortex (rIFC)
432
+ 44, 45 and 47
433
+ R
434
+ -48
435
+ 14
436
+ 18
437
+ p < 0.000002
438
+ p < 0.049
439
+ Left lateral orbital gyrus (LOG)
440
+ 11
441
+ L
442
+ 6
443
+ 42
444
+ -21
445
+ p < 0.000002
446
+ p < 0.049
447
+ aLeft or Right Hemisphere
448
+ bFrom the atlas of Talairach and Tournoux (1988)
449
+ Table 2: Areas of Activation and Talairach Coordinates in the Comparison Between Random Thinking and Pure Meditation
450
+ Citation: Telles S, Singh N, Naveen KV, Deepeshwar S, Pailoor S, et al. (2015) A FMRI Study of Stages of Yoga Meditation Described in
451
+ Traditional Text. J Psychol Psychother 5: 185. doi: 10.4172/2161-0487.1000185
452
+ Page 5 of 6
453
+ Volume 5 • Issue 3 • 1000185
454
+ J Psychol Psychother
455
+ ISSN: 2161-0487 JPPT, an open access journal
456
+ middle temporal gyrus was activated during pure meditation (ME) in
457
+ the present study could be related to the fact that in this state attention
458
+ was maintained on the object of focus without effort. The findings of the
459
+ present fMRI study may be correlated with a morphometry assessment
460
+ of cortical thickness in Brain Wave Vibration (BWV) meditation [25],
461
+ a practice intended to increase awareness. Among other areas the
462
+ meditators showed greater cortical thickness in the temporal cortex
463
+ [25]. The regions with greater thickness were considered to be involved
464
+ in internal mentation or attention that is detached from the external
465
+ world [26]. While the present study demonstrated significantly greater
466
+ activation in the right middle temporal cortex based on functional
467
+ neuroimaging, structural cortical thickness mapping and diffusion
468
+ tensor imaging showed greater cortical thickness in 46 experienced
469
+ meditators compared with 46 matched meditation naïve volunteers in
470
+ several brain areas including the middle temporal cortex [25].
471
+ The increased activation in the inferior frontal cortex in the present
472
+ study has been reported in another neuroimaging study on meditation
473
+ [27]. When two meditation techniques, a ‘focused based’ practice and
474
+ a ‘breath based’ practice were studied, a strong correlation was found
475
+ between the depth of meditation and activation in several areas of the
476
+ brain including the inferior frontal cortex and temporal pole [28].
477
+ In the present study the increased activation of the lateral orbital
478
+ gyrus during meditation may be associated with certain changes in
479
+ mental attitude. The LOG is associated with specific personality traits
480
+ including Machiavellian scores [29,30]. The Machiavelli personality
481
+ is described as unemotional and detached from social morality for
482
+ personal benefits. During meditation there is a possibility of attaining
483
+ a mental state detached from all thoughts unrelated to meditation
484
+ [31]. The activation of the LOG during ME suggests detachment
485
+ which is ideal in meditation provided it co-exists with empathy, social
486
+ consciousness and compassion. Also the orbital gyrus is considered
487
+ to have a role in processing changes in reward related information
488
+ [32]. Meditation could possibly influence factors involved in reward
489
+ gratification with a detached attitude.
490
+ In meditation the ability to voluntarily shift from normal
491
+ consciousness to meditation is enhanced. Thirty one meditators with
492
+ meditation experience between 1.5 and 25 years were assessed using
493
+ a block on-off design with 45 seconds alternating epochs. During the
494
+ onset of meditation and normal relaxation SPM and ICA analysis
495
+ showed activation in multiple regions in the frontal, temporal, parietal
496
+ and limbic areas which was presumed to constitute a combination
497
+ of fronto-parietal and cingulo-oppicular activation [33]. The block
498
+ design in the present study which required practitioners to switch
499
+ between random thinking and the three stages of meditation within a
500
+ short period suggests that experienced meditators were able to change
501
+ from non-meditation to meditation even though this was assessed
502
+ subjectively without any biological marker.
503
+ It was also found by the study of Thomas et al. [23] that the networks
504
+ greatly expanded during meditation practice to include homologous
505
+ regions of the left hemisphere. It may be speculated that this may be
506
+ true for the present study as well. Hence the apparent restriction of
507
+ activation to the right hemisphere may be a partial result with the actual
508
+ activation involving an extended network within the brain.
509
+ The absence of changes in the less experienced meditators is
510
+ possibly related to their shorter duration of meditation experience,
511
+ rather than to other differences between the groups such as the age.
512
+ This is supported partly by a single study [34] which did not find any
513
+ difference in self-focused attention between two groups whose mean
514
+ age differed by 10 years. However the contribution of the difference in
515
+ ages cannot be entirely ruled out.
516
+ The present study has certain unique features, particularly the
517
+ attempt to study changes in the brain during meditation as described
518
+ in traditional texts. This description does not specify a particular
519
+ object or mantra, but describes a process to direct attention which
520
+ can be used across different meditation techniques. The findings are
521
+ limited by factors such as (i) the fixed sequence in the block design
522
+ even though the stages of meditation are sequential, (ii) the absence of
523
+ a group of non-meditators, (iii) the experienced meditators’ ages varied
524
+ considerably, though their experience and intensity of meditation
525
+ experience was comparable and (iv) the self-reports of efficacy to shift
526
+ from state to state could have been influenced by subjectivity and the
527
+ short time intervals of each block (2 minutes) made it all the more
528
+ necessary to check this.
529
+ Conclusion
530
+ In conclusion, the present results showed that there are differences
531
+ during effortless or ‘pure’ meditation as described by traditional yoga
532
+ texts compared to random thinking, involving activation of areas
533
+ involved in semantic cognition, memory, sustained attention, creativity
534
+ and the ability to detach mentally.
535
+ Acknowledgement
536
+ The authors gratefully acknowledge the funding from the Indian Council of
537
+ Medical Research (ICMR), Government of India, as part of a grant for a Center
538
+ for Advanced Research in Yoga and Neurophysiology (CAR-Y&N), (Project No.
539
+ 2001-05010).
540
+ References
541
+ 1. Brown DP (1977) A model for the levels of concentrative meditation. Int J Clin
542
+ Exp Hypn 25: 236-273.
543
+ 2. Murata T, Takahashi T, Hamada T, Omori M, Kosaka H, et al. (2004)
544
+ Individual trait anxiety levels characterizing the properties of zen meditation.
545
+ Neuropsychobiology 50: 189-194.
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+ 3. Davidson RJ, Goleman DJ (1977) The role of attention in meditation and
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+ hypnosis: a psychobiological perspective on transformations of consciousness.
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+ Int J Clin Exp Hypn 25: 291-308.
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+ 4. Cahn BR, Polich J (2006) Meditation states and traits: EEG, ERP, and
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+ neuroimaging studies. Psychol Bull 132: 180-211.
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+ 5. Lutz A, Slagter HA, Dunne JD, Davidson RJ (2008) Attention regulation and
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+ monitoring in meditation. Trends Cogn Sci 12: 163-169.
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+ 6. Saraswati M, Swami G (1998) Bhagavad Gita. Advaita Ashrama, Calcutta,
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+ India.
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+ 7. Lou HC, Kjaer TW, Friberg L, Wildschiodtz G, Holm S, et al. (1999) A 15O-H2O
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+ PET study of meditation and the resting state of normal consciousness. Hum
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+ Brain Mapp 7: 98-105.
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+ 8. Saraswati SS (2002) Meditations from the tantras. Yoga publications trust,
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+ Bihar, India.
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+ 9. Taimni IK (1999) The Science of Yoga: The Yoga-sutras of Patañjali in Sanskrit
561
+ with Transliteration in Roman, Translation and Commentary in English.
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+ Theosophical Publishing House, Madras, India.
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+ 10. Telles S, Raghavendra BR, Naveen KV, Manjunath NK, Kumar S, et al. (2013)
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+ Changes in autonomic variables following two meditative states described in
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+ yoga texts. J Altern Complement Med 19: 35-42.
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+ 11. Kumar S, Nagendra H, Naveen K, Manjunath N, Telles S (2010) Brainstem
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+ auditory-evoked potentials in two meditative mental states. Int J Yoga 3: 37-41.
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+ 12. Telles S, Nagarathna R, Nagendra HR, Desiraju T (1994) Alterations in auditory
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+ middle latency evoked potentials during meditation on a meaningful symbol--
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+ ”Om”. Int J Neurosci 76: 87-93.
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+ 13. Telles S, Deepeshwar S2, Naveen KV2, Pailoor S2 (2014) Long Latency
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+ Auditory Evoked Potentials during Meditation. Clin EEG Neurosci .
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+ Citation: Telles S, Singh N, Naveen KV, Deepeshwar S, Pailoor S, et al. (2015) A FMRI Study of Stages of Yoga Meditation Described in
574
+ Traditional Text. J Psychol Psychother 5: 185. doi: 10.4172/2161-0487.1000185
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+ Page 6 of 6
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+ Volume 5 • Issue 3 • 1000185
577
+ J Psychol Psychother
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+ ISSN: 2161-0487 JPPT, an open access journal
579
+ 14. Oldfield RC (1971) The assessment and analysis of handedness: the Edinburgh
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+ inventory. Neuropsychologia 9: 97-113.
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+ 15. McClure SM, Laibson DI, Loewenstein G, Cohen JD (2004) Separate neural
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+ systems value immediate and delayed monetary rewards. Science 306: 639-
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+ 649.
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+ 16. Talairach J, Tournoux P (1988) Co-planar Stereotaxic Atlas of the Human Brain:
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+ 3-dimensional Proportional System. Thieme Medical Publibation, New York.
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+ 17. Ramachandra RB, Telles S, Hongasandra NRR (2012) Self-rated ability to
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+ follow instructions for four mental states described in yoga texts. TANG 2: e28.
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+ 18. Lehmann D, Faber PL, Achermann P, Jeanmonod D, Gianotti LR, et al.(2001)
589
+ Brain sources of EEG gamma frequency during volitionally meditation-induced,
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+ altered states of consciousness, and experience of the self. Psychiatry Res
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+ 108: 111-121.
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+ 19. Whitney C, Kirk M, O’Sullivan J, Lambon Ralph MA, Jefferies E (2011) The
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+ neural organization of semantic control: TMS evidence for a distributed network
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+ in left inferior frontal and posterior middle temporal gyrus. Cereb Cortex 21:
595
+ 1066-1075.
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+ 20. Convit A, de Asis J, de Leon MJ, Tarshish CY, De Santi S, et al. (2000) Atrophy of
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+ the medial occipitotemporal, inferior, and middle temporal gyri in non-demented
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+ elderly predict decline to Alzheimer’s disease. Neurobiol Aging 21: 19-26.
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+ 21. Hampshire A, Chamberlain SR, Monti MM, Duncan J, Owen AM (2010) The role
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+ of the right inferior frontal gyrus: inhibition and attentional control. Neuroimage
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+ 50: 1313-1319.
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+ 22. Tanaka M, Ishii A, Watanabe Y (2014) Neural effects of mental fatigue caused
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+ by continuous attention load: a magnetoencephalography study. Brain Res
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+ 1561: 60-66.
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+ 23. Thomas J, Jamieson G, Cohen M (2014) Low and then high frequency
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+ oscillations of distinct right cortical networks are progressively enhanced by
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+ medium and long term Satyananda Yoga meditation practice. Front Hum
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+ Neurosci 8: 197.
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+ 24. Kozasa EH, Sato JR, Lacerda SS, Barreiros MA, Radvany J, et al. (2012)
610
+ Meditation training increases brain efficiency in an attention task. Neuroimage
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+ 59: 745-749.
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+ 25. Kang DH, Jo HJ, Jung WH, Kim SH, Jung YH, et al. (2013) The effect of
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+ meditation on brain structure: cortical thickness mapping and diffusion tensor
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+ imaging. Soc Cogn Affect Neurosci 8: 27-33.
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+ 26. Buckner RL, Andrews-Hanna JR, Schacter DL (2008) The brain’s default
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+ network: anatomy, function, and relevance to disease. Ann N Y Acad Sci 1124:
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+ 1-38.
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+ 27. Marchand WR1 (2014) Neural mechanisms of mindfulness and meditation:
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+ Evidence from neuroimaging studies. World J Radiol 6: 471-479.
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+ 28. Wang DJJ, Rao H, Korczykowski M, Wintering N, Pluta J, et al. (2011) Cerebral
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+ blood flow changes associated with different meditation practices and perceived
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+ depth of meditation. Psychiatry Res 191: 60-67.
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+ 29. Spitzer M, Fischbacher U, Herrnberger B, Grön G, Fehr E (2007) The neural
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+ signature of social norm compliance. Neuron 56: 185-196.
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+ 30. Nestor PG1, Nakamura M, Niznikiewicz M, Thompson E, Levitt JJ, et al. (2013)
626
+ In search of the functional neuroanatomy of sociality: MRI subdivisions of
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+ orbital frontal cortex and social cognition. Soc Cogn Affect Neurosci 8: 460-467.
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+ 31. Dass BH (2010) Yoga sutras of Patañjali: A study guide for Book 1. New age
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+ books, New Delhi, India.
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+ 32. Rogers RD, Owen AM, Middleton HC, Williams EJ, Pickard JD, et al (1999)
631
+ Choosing between small, likely rewards and large, unlikely rewards activates
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+ inferior and orbital prefrontal cortex. J Neurosci 19: 9029-9038.
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+ 33. Baerentsen KB, Stødkilde-Jørgensen H, Sommerlund B, Hartmann T,
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+ Damsgaard-Madsen J, et al. (2010) An investigation of brain processes
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+ supporting meditation. Cogn Process 11: 57-84.
636
+ 34. Gibbons FX, Smith TW, Ingram RE, Pearce K, Brehm SS, et al. (1985) Self-
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+ awareness and self-confrontation: effects of self-focused attention on members
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+ of a clinical population. J Pers Soc Psychol 48: 662-675.
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+ Citation: Telles S, Singh N, Naveen KV, Deepeshwar S, Pailoor S, et al. (2015)
640
+ A FMRI Study of Stages of Yoga Meditation Described in Traditional Text. J
641
+ Psychol Psychother 5: 185. doi: 10.4172/2161-0487.1000185
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+ Submit your next manuscript and get advantages of OMICS
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subfolder_0/A Psycho-Oncological Model of Cancer according to Ancient Texts of Yoga.txt ADDED
@@ -0,0 +1,663 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Volume 3 • Issue 1 • 1000129
2
+ J Yoga Phys Ther
3
+ ISSN: 2157-7595 JYPT, an open access journal
4
+ Research Article
5
+ Open Access
6
+ Amritanshuram, J Yoga Phys Ther 2013, 3:1
7
+ http://dx.doi.org/10.4172/2157-7595.1000129
8
+ Research Article
9
+ Open Access
10
+ Yoga & Physical Therapy
11
+ A Psycho-Oncological Model of Cancer according to Ancient Texts of
12
+ Yoga
13
+ Amritanshuram R*, Nagendra HR, Shastry ASN, Raghuram NV and Nagarathna R
14
+ S-VYASA University, Bengaluru, India
15
+ *Corresponding author: Amritanshuram, Division of Life Sciences, Swami
16
+ Vivekananda Yoga Anusandhana Samsthana, Bangalore, India, E-mail:
17
18
+ Received December 17, 2012; Accepted January 28, 2013; Published January
19
+ 31, 2013
20
+ Citation: Amritanshuram R, Nagendra HR, Shastry ASN, Raghuram NV, Nagarathna R
21
+ (2013) A Psycho-Oncological Model of Cancer according to Ancient Texts of Yoga. J
22
+ Yoga Phys Ther 3:129. doi:10.4172/2157-7595.1000129
23
+ Copyright: © 2013 Amritanshuram R. This is an open-access article distributed
24
+ under the terms of the Creative Commons Attribution License, which permits
25
+ unrestricted use, distribution, and reproduction in any medium, provided the
26
+ original author and source are credited.
27
+ Keywords: Yoga; Psycho-neuro-immunological studies; Etiology of
28
+ cancer
29
+ Introduction
30
+ Cancer is a leading cause of death worldwide accounting for 7.4
31
+ million deaths (13% of all deaths worldwide) in 2008 [1]. Research
32
+ to understand the etiology and eradicate the tumor burden without
33
+ harming the host has progressed greatly and has resulted in successful
34
+ cure (in a few cancers), improved longevity and quality life. But the
35
+ world statistics indicates that the prevalence of the disease has not
36
+ reduced which is intriguing. In India alone, 22.2% of women presently
37
+ suffer from cancer which is expected to increase to almost 30% in the
38
+ next five years [2]. This is one of the reasons that have led patients to
39
+ resort to complementary and alternative medicine (CAM). According to
40
+ a previous survey, approximately 21% of cancer survivors in the United
41
+ States had engaged in CAM practices [3]. In India, approximately
42
+ 56% of the cancer patients took recourse to alternative therapies [3].
43
+ Among these, yoga was the third most commonly accepted therapy
44
+ [3]. These surveys have also compiled the reasons for resorting to
45
+ CAM. They were: management of side effects, reduction of costs
46
+ involved, avoiding poor quality of life, minimizing psychological ill-
47
+ health and reducing recurrences in spite of undergoing such traumatic
48
+ treatments [3]. The reason appears to stem from a more fundamental
49
+ cause than these. As treating professionals and researchers we seem to
50
+ have missed a major factor, namely the mind, in our entire search for
51
+ a solution. Conventional treatment has concentrated on dealing with
52
+ pathophysiology at physical, physiological and molecular levels, but in
53
+ reality the human system is governed by a more powerful subtle entity
54
+ called the mind [4].
55
+ Life style and psychosocial stresses were recognized to be
56
+ contributory to sickness, by a few researchers, as early as nineteen
57
+ seventies [4,5], but it is only recently that enough data has been
58
+ accumulated to propose a psycho-neuro-immunological model for
59
+ Abstract
60
+ Background: Several psycho-oncological models of cancer have been published. Integrated module of yoga
61
+ has been found to be effective as an add-on to conventional management of cancer through randomized control
62
+ studies.
63
+ Objectives: To develop a model of the aetiopathogenesis of cancer according to ancient yoga texts.
64
+ Methods: This process had four phases: 1) Review of modern scientific and original texts dating back to 5000
65
+ years, 2) Focused Group Discussions (8 members) to develop the model, 3) preparation of the module based on the
66
+ proposed model and 4) field testing of yoga modules for patients with cancer.
67
+ Results: Yoga texts propose that cancer is disturbed homeostasis (an imbalance) based in the mind. Persistent,
68
+ uncontrolled, fast recycling of thoughts in the mind due to wrong knowledge about the source of happiness is the
69
+ origin. This activates wasteful release of vital energy, (prana), which in due course, expresses onto the physical body
70
+ as habituated imbalance resulting in uncontrolled molecular (gene) level activity. This ‘local violence’, progresses
71
+ by activating the chemical reactions, resulting in inflammation or uncontrolled mitosis. The goal of yoga therapy
72
+ is ‘mastery over inner chemical processes through mindfulness and alertful rest to reduce the inner violence’.
73
+ Yoga modules were developed based on this understanding of the etiology of cancer. Review of literature and
74
+ group discussions which also contributed to these modules, aided to keep the focus on scriptural relevance and
75
+ clinical feasibility. These modules were used in patients with stage 2 and 3 breast cancer in randomized control
76
+ studies between 2003 till 2008. The results of these studies pointed to the beneficial effects of yoga as compared
77
+ to conventional management. During surgery, IAYT reduced hospital stay, faster wound healing and lower drain
78
+ retention; during chemotherapy, practice of yoga demonstrated lower nausea intensity and frequency, anxiety,
79
+ depression, better immunological status and quality of life; yoga practice during radiation therapy brought about
80
+ lesser side effects, less stress levels, better cortisol rhythm, sleep. During and after the treatment period patients
81
+ indicated better quality of life. Controlled studies on breast cancer patients provided the scientific evidence that these
82
+ modules are effective in clinical settings.
83
+ Conclusion: This yoga based, workable model has incorporated the subtle aspects of mind (prana, mind and
84
+ the self) into the psycho-neuro-immunological model of cancer. Evidence suggests that yoga techniques that are
85
+ based on the models are effective in the management of breast cancer. Mechanism studies and intense dialogue are
86
+ necessary to consolidate these concepts.
87
+ Citation: Amritanshuram R, Nagendra HR, Shastry ASN, Raghuram NV, Nagarathna R (2013) A Psycho-Oncological Model of Cancer according
88
+ to Ancient Texts of Yoga. J Yoga Phys Ther 3:130. doi:10.4172/2157-7595.1000129
89
+ Page 2 of 6
90
+ Volume 3 • Issue 1 • 1000129
91
+ J Yoga Phys Ther
92
+ ISSN: 2157-7595 JYPT, an open access journal
93
+ cancer [6]. This has helped to create an awareness of the role of mind
94
+ body relationship in the etiology and progression of cancer. Anderson
95
+ et al. [7] proposed a model in 1994 that pointed to a relationship
96
+ between mind and cancer. By 2006 they moved on to create a model
97
+ that portrayed a linear progressive casual relationship between
98
+ psychological stress, immune disturbance and cancer [8]. Further, in
99
+ 2010 Ao P et al. [9] proposed a dynamic non linear mathematical model
100
+ of the etiology and progression of cancer based on the interaction of
101
+ the caspase-3 molecules to indicate the states of normalcy, disease and
102
+ stress.
103
+ Among the various CAM treatments available, yoga offers a holistic
104
+ model using an entirely different concept of understanding human
105
+ body in health and disease states; it also offers self corrective techniques
106
+ to restore normalcy. Ancient texts dating back to about 5000 years (Rig
107
+ Veda, Patanjali Yoga Sutra and ayurveda] provide a highly evolved
108
+ conceptual basis of aetiopathogenesis of disease and its management.
109
+ The ‘Integrated Approach of Yoga Therapy (IAYT) for Cancer’
110
+ , used
111
+ as complimentary to conventional medicine in all studies conducted
112
+ by Swami Vivekananda Yoga Anusandana Samsthana (S-VYASA)
113
+ consisted of practices that were based on this model. The aim of the
114
+ present study is to present a holistic model of etiopathogenesis of
115
+ cancer using both the ancient and present knowledge.
116
+ Methods
117
+ This retrospective scientific narrative has been classified under four
118
+ phases (Table 1).
119
+ Content generation
120
+ Research scholars reviewed traditional yoga and ayurveda texts
121
+ for references to disease etiology and cancer specific pathology and
122
+ progression [10–13]. A comprehensive list of all the attributes and
123
+ treatment modalities were compiled for further discussion.
124
+ Scientific literature including empirical evidence and review
125
+ articles were also scrutinized and hypothesized cancer etiology models
126
+ [9] were noted apart from accumulating information regarding latest
127
+ trials that had been done in the field of mind body medicine as a disease
128
+ management strategy [14–18].
129
+ Model development
130
+ Focused Group Discussions (FGD): The literature thus compiled
131
+ was presented to a group of experts for deliberations. The participants
132
+ of the focused group discussion (FGD) included eight members
133
+ consisting of 3 yoga experts with in-depth scriptural knowledge who
134
+ were practitioners of these techniques, one post graduate physician, two
135
+ oncologists who work with cancer patients and understand their major
136
+ concerns and needs at physical, mental and emotional levels during the
137
+ conventional therapies, and two research fellows.
138
+ For each item on the list, the experts were asked to mark ‘useful’
139
+ ,
140
+ or ‘not relevant’ for understanding cancer etiology. The group was also
141
+ asked to suggest more references regarding cancer and its etiopathology.
142
+ In addition to this, in-depth discussions ensued which formed a major
143
+ method for data generation. These discussions and suggestions thereof
144
+ were noted and were added to the pre-existing list. Inputs by the experts
145
+ were used to finalize the model for cancer etiopathogenesis.
146
+ The flexibility of the FGD structure facilitated exploratory
147
+ discussions which made the outcome more humanized rather than
148
+ a score based questionnaire method. Despite its time consuming
149
+ characteristic, it helped the researchers to interact as contributors
150
+ to the model. The probing questions and discussions facilitated the
151
+ development of the model by sharing each others’ experiences also. The
152
+ entire process involved several small group meetings, correspondences,
153
+ sitting together for meditation and visiting the experts in the field apart
154
+ from the FGDs.
155
+ All the suggestions offered by the group of experts were deemed
156
+ equally important and taken into consideration for designing the
157
+ model. This was done by the research scholars under the guidance of
158
+ the yoga experts.
159
+ Module preparation
160
+ The FGD resulted in the formation of a etiopathological model of
161
+ cancer. A check list of yoga practices which was developed based on this
162
+ model were provided to the same team of experts for their opinion. This
163
+ process followed a semi-structured format, using open-ended questions
164
+ in a face-to-face conversational style and the focus was to document the
165
+ interviews and discussions that were based on the literature review and
166
+ experiential knowledge. Inputs regarding feasibility, need, relevance of
167
+ several yoga techniques were used to develop the modules of integrated
168
+ approach of yoga that formed the material for another publication [19].
169
+ Field testing
170
+ The modules that evolved were initially administered to patients
171
+ with different cancers as part of the pilot study. These subjects were
172
+ recruited from the residential health home of the institution, admitted
173
+ for two to three weeks to undergo integrated approach of yoga therapy.
174
+ These modules were administered to them for the period of their stay
175
+ by trained experts (two of the senior faculty who were involved in the
176
+ FGD). Feedback from these patients was recorded immediately after
177
+ each session. Based on this, further changes were made to the modules.
178
+ Further we conducted two randomized controlled studies that
179
+ used the modules of IAYT for cancer as an add-on to conventional
180
+ management of breast cancer (stages 2 and 3) results of which formed
181
+ the material for the eight publications on the complimentary role of
182
+ IAYT in breast cancer [20–27].
183
+ Results
184
+ Contents of the model: Panchakoshva viveka (the five components
185
+ of human being).
186
+ According to yoga texts (Taittereya Upanishad), the human system
187
+ consists of five components [pancha kosha]: Physical body (Annamaya
188
+ Kosha), Subtle Energy or Prana (Pranamaya kosha), Instinctual mind
189
+ (Manomaya kosha), Intellectual or discriminative mind (Vignanamaya
190
+ kosha) and bliss-full silent state (Anandamaya kosha) (Figure 1).
191
+ Content Generation
192
+ o
193
+ Review of traditional texts
194
+ o
195
+ Review of scientific literature on cancer pathology
196
+ o
197
+ Interactions and discussions with experienced yoga
198
+ gurus
199
+ Model
200
+ Development
201
+ o
202
+ Focused Group Discussions and semi structured
203
+ interviews
204
+ o
205
+ 8 experts from yoga or oncology field
206
+ o
207
+ preparation of yogic model for cancer management
208
+ Yoga Module
209
+ Preparation
210
+ o
211
+ List of practices based on etiopathology and need
212
+ o
213
+ Validation of yoga modules
214
+ Field Testing
215
+ o
216
+ Pilot studies on patients with cancer in stages 2-4 in
217
+ sites such as breast, cervix, stomach, colon cancers
218
+ included
219
+ o
220
+ Randomized controlled studies on patients with
221
+ breast cancer( stage 2-3)
222
+ Table 1: Stages in the development of yogic model for the aetiopathogenesis of
223
+ cancer.
224
+ Citation: Amritanshuram R, Nagendra HR, Shastry ASN, Raghuram NV, Nagarathna R (2013) A Psycho-Oncological Model of Cancer according
225
+ to Ancient Texts of Yoga. J Yoga Phys Ther 3:130. doi:10.4172/2157-7595.1000129
226
+ Page 3 of 6
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+ Volume 3 • Issue 1 • 1000129
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+ J Yoga Phys Ther
229
+ ISSN: 2157-7595 JYPT, an open access journal
230
+ Shvetashvatara Upanishad [10] describes that a human being is
231
+ in perfect harmony with nature and healthy when he is established in
232
+ Anandamaya kosha which is the unchanging state of being, the self
233
+ (called Brahman) and the causal state of beings from where all other
234
+ (ever changing) Koshas emerge [28]. Analogies to explain that Ananda/
235
+ perfect health is the unchanging core of one’s personality include ‘this
236
+ kosha is like the string in a necklace of beads’ (Bhagavad Gita 7.7), like
237
+ the gold in all jewels (Chandogya Upanishad, 6.1.6) [12] or the clay in
238
+ different shaped pots (Chandogya Upanishad, 6.1.3) [12]. This state is
239
+ experienced as a state wherein one reaches a state of inner quietitude
240
+ with awareness and the knowledge that ‘I am made of the same
241
+ universal consciousness and bliss that forms the base material of the
242
+ entire creation’
243
+ .
244
+ (Mandukya Upanishad 2) [29]; e.g. a salt doll dives into the ocean
245
+ to understand the depth of the ocean but gets the joy of becoming the
246
+ ocean itself by losing its individual entity [30].
247
+ Waves begin in this ocean of blissful quietitude and become grosser
248
+ and grosser to form the other four components of the body (Ch3v3-6)
249
+ [28]. The first wave (spandana) that appears is the ‘I’ (self awareness)
250
+ followed by several varieties of waves that form a template of right
251
+ knowledge, the Vignanamaya kosha. In this state man is in perfect
252
+ health as he is in tune with nature [28] and leads a healthy life style with
253
+ complete mastery over his mind (Ch1v3) [31]. As these waves gather
254
+ momentum with higher amplitude and rewinding speed (ch5v26)
255
+ [11], (ch8v88) [13] it gathers energy to become the Manomaya kosha
256
+ in which likes and dislikes begin (Tattva Bodha v49) [32]. As the
257
+ process of grossification continues it goes on to become the vital energy
258
+ (pranamaya kosha) and the physical molecules (Annamaya kosha)
259
+ (Ch3 v5) [28]. Yoga techniques offer techniques of mastering the gross
260
+ [13] to reach the subtle layers of one’s existence by introspective slowing
261
+ down of thoughts. The subtle controls the gross e.g. if one masters prana
262
+ he can manipulate the functions of physical body; mind can manipulate
263
+ prana; vignana can master the mind and prana (Ch1v40) [31]. The goal
264
+ of life is to establish in a state of complete mastery by remaining in a
265
+ state of vignana , a state of complete freedom and contentment, freedom
266
+ from all distress and disease (shvetashvatara Upanishad ch2v12) [10].
267
+ This is a state in which one develops the ability to manipulate the laws
268
+ of nature within the body and outside the body (ch1v4) [31].
269
+ The model proposes the ability to master the law that governs
270
+ programmed cell cycle. Mind is the most highly evolved and the
271
+ most powerful entity in the manifest universe. A living human body
272
+ is a flux of continuous changes that is programmed to live a full life
273
+ span of about a century in perfect heath if it is not disturbed by major
274
+ calamities. As man goes through the ups and downs of life (be it
275
+ exposure to external onslaughts like injury or infection, or emotionally
276
+ challenging situations), it sets off an imbalance. The scriptures are
277
+ very emphatic when they say that this imbalance occurs due to lack
278
+ of mastery over mind which is the starting point of any mind body
279
+ disease. Sage Vasistha describes the progression of this imbalance that
280
+ results in cancer (and/or other lifestyle related disorder) in the text yoga
281
+ Vasistha (ch9 v82-117) [13]. The search for happiness in outside objects
282
+ continues with unresolved conflicts due to wrong notion about the
283
+ meaning of life and nature of happiness. The nature of this conflict or
284
+ distress is described as ‘uncontrolled recycling of sentences in the mind’
285
+ (yogic definition of stress) (ch5v23) [11], the Manomaya kosha. This
286
+ imbalance due to uncontrolled speed (udvega) of suppressed emotions
287
+ when unchecked results in an imbalance and percolates into pranamaya
288
+ kosha. This is detectable as disturbed pattern of breathing (increased
289
+ rate and irregular rhythm) and poor digestion. As this imbalance and
290
+ loss of mastery goes on for some time it becomes an involuntary habit,
291
+ a reflex. Chronic constipation or irritable bowel (alternate constipation
292
+ and diarrhea), fatigue and generalized body aches are the other
293
+ general (non-specific) manifestations at this level. When unattended
294
+ by correcting the imbalance at the root cause (the Manomaya and
295
+ Vignanamaya koshas) the process continues and localizes to a specific
296
+ zone in the physical body (Annamaya kosha). Thus, the uncontrolled
297
+ rush of prana (vital energy) results in uncontrolled electro-chemical
298
+ processes in the physical body, the annamaya kosha. This appears to
299
+ mean that the physical fight (tissue inflammation) is a reflection of
300
+ the violence or fight in the mind. We know today that inflammation
301
+ is a feature of cancer. Thus, the uncontrolled excessive prana (subtle
302
+ energy) flow seems to cause the changes in the molecular level that
303
+ goes on to alter the apoptotic programming resulting in immortal
304
+ cells and perpetuation of cancer cells (Figure 2). Further, the texts go
305
+ on to describe that the localization of the disease (cancer) depends on
306
+ external (insult by carcinogenic agents, trauma, toxins, and infections)
307
+ or internal (genetic) factors.
308
+ Thus, the yogic model proposes that the entire problem is due to
309
+ repetitive on slaught by uncontrolled thoughts (suppressed emotions)
310
+ at the mind level (Manomaya kosha) which causes excessive prana
311
+ activity and manifests as violence (inflammation) at annamaya kosha
312
+ to show up as cancer.
313
+ Figure 1: showing etiopathogenesis of cancer, combining knowledge from yoga
314
+ texts and modern literature.
315
+ Figure 2: Five Layers of the Human system.
316
+ Citation: Amritanshuram R, Nagendra HR, Shastry ASN, Raghuram NV, Nagarathna R (2013) A Psycho-Oncological Model of Cancer according
317
+ to Ancient Texts of Yoga. J Yoga Phys Ther 3:130. doi:10.4172/2157-7595.1000129
318
+ Page 4 of 6
319
+ Volume 3 • Issue 1 • 1000129
320
+ J Yoga Phys Ther
321
+ ISSN: 2157-7595 JYPT, an open access journal
322
+ Integrated approach of yoga therapy for cancer
323
+ The integrated approach of yoga offers a comprehensive means
324
+ to overcome the damage by achieving mastery at all levels through
325
+ deep cellular rest (reducing the speed, violence and inflammation). At
326
+ the physical level (Annamaya kosha) there are practices that include:
327
+ cleansing the body (yogic kriyas) of the endotoxins (Aama as portrayed
328
+ in ayurveda) both at the gross (fecal matter) and subtle (molecular
329
+ toxins e.g. free radicals) levels [33]; correcting the life style through
330
+ yogic diet and injunctions for healthy behavior (sleep, activity, speech,
331
+ righteousness); and providing deep rest (reduce the speed) to the
332
+ damaged/sick tissues through physical postures (asanas). Pranayama
333
+ or breathing techniques corrects the imbalances in pranamaya kosha
334
+ through voluntary reduction in the rate of breathing (Ch2 v49) [34].
335
+ Meditation (Dharana, Dhyana, Samadhi and Sanyama), the Manomaya
336
+ kosha practice is the most important as it aims at direct mastery over the
337
+ mind, the root cause of the problem by establishing in an introspective
338
+ state of blissful awareness (dhyana=effortless flow of a single thought)
339
+ (Ch2 v2) [31] (Ch3 v2) [34]. Devotion (bhakti yoga or emotional
340
+ culture) is another important component that helps in harnessing the
341
+ uncontrolled surge of violent suppressed emotions through using ‘pure
342
+ love’
343
+ . At the vignanamaya kosha level (intellectual) correction of the
344
+ false notion is achieved through understanding that ‘I am made of the
345
+ universal consciousness and bliss (Ananda) which is independent of
346
+ the mind’
347
+ . At anandamaya kosha level, karma yoga helps in achieving
348
+ blissful awareness free from all fears (including fear of death). Thus
349
+ the highlight of this model is the possibility of the practitioner to de-
350
+ identify and dissolve oneself in the universal consciousness that is
351
+ described as existence (sat), consciousness (chit) and bliss (ananda),
352
+ through right knowledge and awareness. All practices including
353
+ yogic diet, kriyas (cleansing), asanas, pranayama, dharana, dhyana,
354
+ devotion and self analysis prepare the system to stop the turbulent
355
+ fluctuations (superficial and deep seated subconscious activities) and
356
+ allow the mind to rest in a state of inner quietitude(wakeful sleep) .
357
+ A single positive thought (a resolve) dropped in the ocean of blissful
358
+ quietitude (sanyamah) has the ability to reverse the imbalances at all
359
+ levels [31]. Thus the process of reversing the structural and functional
360
+ abnormalities at the tissue level is described through this model.
361
+ Field testing
362
+ The major changes suggested by the patients, after having
363
+ undergone sessions of the yoga module, as part of the pilot study, were:
364
+ (a) the duration of each module of the practice had to be reduced from
365
+ 60 to 30 minutes, (b) there was a need for recorded audio CDs/cassettes
366
+ to help them continue the practice and (c) some of the imageries used
367
+ during the practice had to be replaced. E.g.: the ‘death experience’ had
368
+ to be replaced by ‘surrender to the divine lord’ which gave much more
369
+ confidence to face the disease.
370
+ The results of randomized control trials on stage 2 and 3 breast
371
+ cancer patients have shown beneficial effects of IAYT, throughout the
372
+ entire treatment phase, as an add-on to conventional treatment.
373
+ Stage 2 and 3 breast cancer patients undergoing surgery showed
374
+ shorter hospital stay, suture removal and lower drain retention in
375
+ the group that were administered IAYT. Patients receiving IAYT
376
+ along with radiotherapy showed significantly lower levels of anxiety,
377
+ depression distress, fatigue, insomnia, and appetite loss, negative effect
378
+ and stress and improved activity levels, positive effect, emotional and
379
+ functional quality of life while the amount of change in DNA damage
380
+ was significantly lower as compared to controls. Cortisol rhythms
381
+ also showed restorative changes in yoga group. Breast cancer patients
382
+ receiving chemotherapy and IAYT reported lower nausea intensity
383
+ and frequency apart from lower state and trait anxiety, depression,
384
+ symptom severity, distress and better quality of life. Higher immune
385
+ parameters like NK cells, CD8+ and CD56+ counts were also observed
386
+ for this group.
387
+ Discussion
388
+ This narrative summary of a pre-clinical process, presents a model
389
+ of the aetiopathogenesis of cancer that has evolved over 5000 years of
390
+ research in the east by yoga masters as an introspective science. This
391
+ model of origin and progression of cancer takes into account the
392
+ existence of subtle aspects of the personality such as prana, mind, and
393
+ the self (the soul). The holistic model proposes that the root cause of
394
+ the disease is the wrong mindset or incorrect notion viz. ‘the source of
395
+ happiness is the external agents of enjoyment’
396
+ . The life’s ambitions and
397
+ plans are all based on this notion. Frustrations occur when these are
398
+ not fulfilled. Emotional suppressions become mandatory to carry on
399
+ with life. This results in chronic imbalance that disturbs homeostasis
400
+ and culminates to cancer. This analysis provides the logical basis for
401
+ using corrective techniques that are used in yoga practices.
402
+ Our studies that used intervention modules called IAYTC
403
+ (integrated approach of yoga therapy for cancer) based on this model
404
+ as an add-on during the entire course of conventional management of
405
+ breast cancer (stages 2 and 3) have shown the beneficial effects [20–27].
406
+ The results of these studies indicate that the IAYT modules complement
407
+ conventional treatment and are clinically relevant to cancer patients.
408
+ However, they do not provide direct evidence for the etiopathological
409
+ model that is proposed in this article and is a working hypothesis that
410
+ has been suggested.
411
+ Comparisons with other psyco-oncological models
412
+ Anderson et al. [7] proposed a bio-behavioral model of the
413
+ relationship between stresses of cancer based on several publications
414
+ up until 1994.
415
+ Her study highlighted the mechanisms by which psychological and
416
+ behavioral responses may influence biological processes and the health
417
+ outcomes and gave insights into the role of mind in compliance to
418
+ standard therapies. Further, based on a decade long (between 1995 and
419
+ 2005) explosive discoveries on the relationship between psyche and the
420
+ immune modulation the same researchers Thornton and Anderson [8]
421
+ presented a psycho-neuro-immunological model of cancer. This model,
422
+ for the first time, hypothesized a causal linear relationship between the
423
+ chain of events starting from stressors, psychological stress response
424
+ that may lead to physiological stress response going on to immune
425
+ changes and the disease processes. They could also incorporate many
426
+ molecular mediators and moderators in the model. There has been
427
+ continuing debate on this psycho-neuro-immunological model of the
428
+ genesis and progression of cancer. A robust study by Surtees et al. [35]
429
+ investigated the associations between lifetime social adversity measures
430
+ that included stressful life events in childhood and adult life, stress
431
+ adaptive capacity, and perceived stress over a 10-year period. Looking
432
+ at the Incidence through the cancer registry data showed no evidence
433
+ that social stress exposure or individual differences in its experience are
434
+ associated with the development of breast cancer [35].
435
+ Research in the last decade identified several mediators involved in
436
+ the genetics of cancer that has led to successful drug discoveries. Based
437
+ on these, Ao et al. [9] proposed a non linear mathematical physical
438
+ (stochastic dynamic) model. According to this model, the oncogenes
439
+ and other molecular and cellular agents form pathways and modules
440
+ Citation: Amritanshuram R, Nagendra HR, Shastry ASN, Raghuram NV, Nagarathna R (2013) A Psycho-Oncological Model of Cancer according
441
+ to Ancient Texts of Yoga. J Yoga Phys Ther 3:130. doi:10.4172/2157-7595.1000129
442
+ Page 5 of 6
443
+ Volume 3 • Issue 1 • 1000129
444
+ J Yoga Phys Ther
445
+ ISSN: 2157-7595 JYPT, an open access journal
446
+ that cross talk to each other to form endogenous networks. The
447
+ nonlinear dynamical interactions among these generate many locally
448
+ stable states of which some states may be normal such as cell growth,
449
+ apoptosis, arresting, etc,; others may be abnormal, such as growth
450
+ with elevated immune response and high energy consumption, likely
451
+ the signature of cancer; some may be useful to deal with rare stressful
452
+ situations.
453
+ Similar to basic discoveries at molecular levels that led to safer
454
+ drugs to scavenge for cancer cells, the eastern yoga model offers a
455
+ sound conceptual basis for psycho-oncological processes that leads to
456
+ techniques of yoga with the potential of returning to normalcy.
457
+ Since the first published research article evaluating the benefits of
458
+ a support group therapy [36] in 1981, several researchers have used
459
+ techniques like mindfulness-based stress reduction (MBSR), progressive
460
+ muscle relaxation, Tibetan yoga as alternative forms of mindful and
461
+ proactive non-pharmacological methodologies in combination with
462
+ conventional treatment and seen a plethora of benefits in cancer care.
463
+ To date there are three metaanalyses [37–39] of all published papers on
464
+ yoga in cancer, that provide consistent evidence to the strong beneficial
465
+ effects on distress, anxiety and depression, moderate effects on fatigue,
466
+ general HRQoL, emotional function and social function, small effects
467
+ on functional well-being, and no significant effects on physical function
468
+ and sleep disturbances. Looking at the results of all these studies, it
469
+ raises a question as to how all these studies could show similar results
470
+ although they had used different practices ranging from only physical
471
+ practices to meditative practices. The answer lies in the understanding
472
+ that all these (asanas, pranayama, meditation etc) are only techniques to
473
+ help the patient arrive at an internal mastery over the mind and prana
474
+ that helps in correcting the imbalances. As the premise for calling any
475
+ practice ‘yoga’ is clarified in ancient Indian literature, researchers had
476
+ the freedom to modify the intervention to suit the desired objectives.
477
+ Summary
478
+ The scriptural basis of the IAYTC has been discussed. The model
479
+ incorporates all aspects of the personality with mind as the starting
480
+ point with cancer as the end point of the process.
481
+ Limitations of the study
482
+ This work refers a retrospective presentation of the steps that were
483
+ followed over the years and not a prospective planned study to assess
484
+ the validity and reliability of the model. Statistically acceptable check
485
+ lists and scoring were not used during all group discussions and the
486
+ format was semi structured. Not all members of the focused group met
487
+ during all discussions and there were several meetings that were not
488
+ documented. Statistical calculations of split half reliability were not
489
+ planned.
490
+ The clinical trials performed using yoga techniques developed
491
+ based on the proposed model cannot directly validate the model but
492
+ indicate that yoga is an effective tool for the management of cancer.
493
+ Although cancer patients and yoga teachers would greatly benefit from
494
+ the knowledge of this model, it is not a necessity that this model be the
495
+ only mechanisms of action.
496
+ Strengths
497
+ This is the first proposed model that explains the role of imbalances
498
+ at several levels of existence (physical body, prana and mind). It
499
+ forms the basis for self corrective techniques. RCTs that led to eight
500
+ publications [20–27] provide the evidence. This offers new direction to
501
+ research on cancer at subtler levels.
502
+ Conclusion
503
+ This study offers a model for holistic approach to cancer research
504
+ as it incorporates the subtle components into the psycho-neuro-
505
+ immunological model of cancer. More robust studies to understand the
506
+ mechanism are to be designed, in the future, in order to find evidence
507
+ for each process in the hypothesized model.
508
+ Acknowledgements
509
+ We acknowledge the support and the funding provided by the librarian and the
510
+ staff of S-VYASA University.
511
+ References
512
+ 1. World Health Organization (2012) World health Report factsheet.
513
+ 2. Ferlay J, Shin H, Bray F, Forman D, Mathers C, et al. (2008) GLOBOCAN
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+ Cancer Incidence and Mortality Worldwide: IARC CancerBase No. 10 [Internet].
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+ International Agency for Research on Cancer. 2010
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+ 3. Gupta M, Shafiq N, Kumari S, Pandhi P (2002) Patterns and perceptions
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+ of complementary and alternative medicine (CAM) among leukaemia
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+ patients visiting haematology clinic of a north Indian tertiary care hospital.
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+ Pharmacoepidemiol Drug Saf 11: 671-676.
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+ 4. CUNNINGHAM AJ (1985) THE INFLUENCE OF MIND ON CANCER.
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+ CANADIAN PSYCHOLOGY 26: 13–29.
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+ 5. Hirayama T (1979) Nutrition and Cancer. Diet and cancer 1: 67–81.
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+ 6. Smith N, Fuhrmann T, Tausk F (2009) Psychoneuro-oncology: its time has
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+ arrived. Arch Dermatol 145: 1439–1442.
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+ 7. Andersen BL, Kiecolt-Glaser JK, Glaser R (1994) A biobehavioral model of
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+ cancer stress and disease course. Am Psychol 49: 389–404.
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+ 8. Thornton LM, Andersen BL (2006) Psychoneuroimmunology examined: The
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+ role of subjective stress. Cell science 2: 66–91.
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+ 9. Ao P, Galas D, Hood L, Yin L, Zhu XM (2010) Towards predictive stochastic
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+ dynamical modeling of cancer genesis and progression. Interdiscip Sci 2:
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+ 140–144.
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+ 10. Easwaran E (1973) Three Upanishads: Isha, Mandukya, and Shvetashvatara.
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+ 1st (edn). California: Nilgiri Press.
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+ 11. Tapasyananda S. Bhagavat Gita. Economy (edn). Mylapore: Math, Sri
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+ Ramakrishna
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+ 12. Swahananda S. Chandogya Upanishad (2010) (1stedn), Swahananda S,
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+ editor. Kolkata: Vedanta Press (Ramakrishna Math).
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+ 13. Venkatesananda S, Chappel C (1984) The Concise Yoga Vasistha. (1stedn),
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+ Albany: New York State University Press.
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+ 14. Helyer LK, Chin S, Chui BK, Fitzgerald B, Verma S, et al. (2006) The use
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+ of complementary and alternative medicines among patients with locally
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+ advanced breast cancer--a descriptive study. BMC cancer 6: 39.
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+ 15. Kiecolt-Glaser JK, Christian L, Preston H, Houts CR, Malarkey WB, et al.
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+ (2010) Stress, inflammation, and yoga practice. Psychosom Med 72: 113–121.
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+ 16. Speck RM, Courneya KS, Mâsse LC, Duval S, Schmitz KH (2010) An update
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+ of controlled physical activity trials in cancer survivors: a systematic review and
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+ meta-analysis. J Cancer Surviv 4: 87–100.
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+ 17. Ledesma D, Kumano H (2009) Mindfulness-based stress reduction and cancer:
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+ a meta-analysis. Psychooncology 18: 571–579.
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+ 18. Moadel AB, Shah C, Wylie-Rosett J, Harris MS, Patel SR, et al. (2007)
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+ Randomized controlled trial of yoga among a multiethnic sample of breast
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+ cancer patients: effects on quality of life. J Clin Oncol 25: 4387–4395.
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+ 19. Ram A, Raghuram N, Rao RM, Koka PS, Bhargav H, et al. (2011) Developement
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+ and Validation of a need-based integrated yoga program for cancer patients.
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+ Journal of Stem Cells 7.
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+ 20. Rao MR, Raghuram N, Nagendra HR, Gopinath KS, Srinath BS, et al. (2009)
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+ Anxiolytic effects of a yoga program in early breast cancer patients undergoing
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+ conventional treatment: a randomized controlled trial. Complement Ther
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+ Med17: 1–8.
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+ 21. Raghavendra RM, Nagarathna R, Nagendra HR, Gopinath KS, Srinath BS, et
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+ Citation: Amritanshuram R, Nagendra HR, Shastry ASN, Raghuram NV, Nagarathna R (2013) A Psycho-Oncological Model of Cancer according
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+ to Ancient Texts of Yoga. J Yoga Phys Ther 3:130. doi:10.4172/2157-7595.1000129
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+ Page 6 of 6
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+ Volume 3 • Issue 1 • 1000129
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+ J Yoga Phys Ther
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+ ISSN: 2157-7595 JYPT, an open access journal
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+ al. (2007) Effects of an integrated yoga programme on chemotherapy- induced
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+ nausea and emesis in breast cancer patients. Eur J Cancer Care (Engl)
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+ 16:462–474.
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+ 22. Rao RM, Nagendra HR, Raghuram N, Vinay C, Chandrashekara S, et al.
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+ (2008) Influence of yoga on postoperative outcomes and wound healing in
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+ early operable breast cancer patients undergoing surgery. Int J Yoga 1: 33–41.
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+ 23. Vadiraja HS, Rao MR, Nagarathna R, Nagendra HR, Rekha M, et al. (2009)
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+ Effects of yoga program on quality of life and affect in early breast cancer
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+ patients undergoing adjuvant radiotherapy: a randomized controlled trial.
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+ Complement Ther Med 17: 274–280.
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+ 24. Rao RM, Nagendra HR, Raghuram N, Vinay C, Chandrashekara S, et al. (2008)
578
+ Influence of yoga on mood states, distress, quality of life and immune outcomes
579
+ in early stage breast cancer patients undergoing surgery. Int J Yoga 1: 11–20.
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+ 25. Vadiraja HS, Raghavendra RM, Nagarathna R, Nagendra HR, Rekha M, et
581
+ al. (2009) Effects of a yoga program on cortisol rhythm and mood states in
582
+ early breast cancer patients undergoing adjuvant radiotherapy: a randomized
583
+ controlled trial. Integr Cancer Ther 8: 37–46.
584
+ 26. Vadiraja SH, Rao MR, Nagendra RH, Nagarathna R, Rekha M, et al. (2009)
585
+ Effects of yoga on symptom management in breast cancer patients: A
586
+ randomized controlled trial. Int J Yoga 2: 73–79.
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+ 27. Banerjee B, Vadiraj HS, Ram A, Rao R, Jayapal M, et al. (2007) Effects of
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+ an integrated yoga program in modulating psychological stress and radiation-
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+ induced genotoxic stress in breast cancer patients undergoing radiotherapy.
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+ Integr Cancer Ther 6: 242–250.
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+ 28. Gambhirananda
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+ S
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+ (2010)
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+ Taittiriya
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+ Upanishad.
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+ (1stedn),
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+ Kolkata:
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+ Advaithashrama.
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+ 29. Nikhilananda S (2006) The Mandukya Upanishad with Gaudapa Karika and
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+ Sankara’s Commentary. (6thedn), Kolkata: Advaithashrama.
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+ 30. Nikhilananda S (1984) Gospel of Sri Ramakrishna.(9thedn), Ramakrishna-
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+ Vivekananda Center.
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+ 31. Taimni IK (1999) The Yoga Sutras of Patanjali. (1stedn), Integral Yoga
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+ Publications.
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+ 32. Sankaracharya (1986) Tattva Bodha. (1stedn), Bangalore: Chinmaya Mission
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+ Trust.
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+ 33. Tripathi JS, Singh RH (1999) Possible Correlates of Free Radicals and Free
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+ Radical Mediated Disorders in Ayurveda with Special Referance to Bhutagni
609
+ Vyapara and Ama at molecular Level. Anc Sci Life. 19: 17–20.
610
+ 34. Vivekananda
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+ S
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+ (1999)
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+ Raja Yoga.
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+ (1stedn),
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+ Raja Yoga.
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+ Kolkata:
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+ Advaithashrama.
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+ 35. Surtees PG, Wainwright NW, Luben RN, Khaw KT, Bingham SA (2010) No
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+ evidence that social stress is associated with breast cancer incidence. Breast
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+ cancer res and treat 120: 169–174.
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+ 36. Spiegel D, Bloom JR, Yalom I (1981) Group Support for Patients With Metastatic
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+ Cancer: A Randomized Prospective Outcome Study. Arch Gen Psychiatry 38:
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+ 527–533.
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+ 37. Lin KY, Hu YT, Chang KJ, Lin HF, Tsauo JY (2011) Effects of yoga on
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+ psychological health, quality of life, and physical health of patients with cancer:
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+ a meta-analysis. Evid Based Complement Alternat Med.  
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+ 38. Buffart LM, Van Uffelen JG, Riphagen II, Brug J, Van Mechelen W, et al. (2012)
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+ Physical and psychosocial benefits of yoga in cancer patients and survivors,
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+ a systematic review and meta-analysis of randomized controlled trials. BMC
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+ cancer 12: 559.
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+ 39. Cramer H, Lange S, Klose P, Paul A, Dobos G (2012) Yoga for breast cancer
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+ patients and survivors: a systematic review and meta-analysis. BMC cancer
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+ 12: 412.
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+ Submit your next manuscript and get advantages of OMICS
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+ R (2013) A Psycho-Oncological Model of Cancer according to Ancient Texts of
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+ Yoga. J Yoga Phys Ther 3:130. doi:10.4172/2157-7595.1000129
subfolder_0/A Questionnaire designed to measure tridosha values in adolescents changes in score pre-post an IAYT yoga module.txt ADDED
@@ -0,0 +1,1063 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Kaur et al. European Journal of Biomedical and Pharmaceutical Sciences
2
+
3
+
4
+ www.ejbps.com
5
+
6
+ 205
7
+
8
+
9
+
10
+ A QUESTIONNAIRE DESIGNED TO MEASURE TRIDOSHA VALUES IN
11
+ ADOLESCENTS: CHANGES IN SCORE PRE-POST AN IAYT YOGA MODULE
12
+
13
+
14
+ Devika Kaur1, Alex Hankey2* and HR Nagendra3
15
+
16
+ 1S-VYASA, Prashanthi Kutiram Campus, Manchenahalli, Kalluballu Post, Jigani, Anekal Taluk, Bengaluru District,
17
+ Karnataka 560105.
18
+ 2Distinguished Professor of Yoga and Physical Science S-VYASA, Prashanthi Kutiram Campus, Manchenahalli,
19
+ Kalluballu Post, Jigani, Anekal Taluk, Bengaluru District, Karnataka 560105.
20
+ 3Chancellor, S-VYASA, Prashanthi Kutiram Campus, Manchenahalli, Kalluballu Post, Jigani, Anekal Taluk,
21
+ Bengaluru District, Karnataka 560105.
22
+
23
+
24
+
25
+
26
+
27
+ Article Received on 30/07/2019 Article Revised on 19/08/2019 Article Accepted on 09/09/2019
28
+
29
+
30
+
31
+
32
+
33
+
34
+
35
+
36
+
37
+
38
+
39
+
40
+
41
+
42
+
43
+
44
+
45
+ INTRODUCTION
46
+ India‟s ancient science of life, Ayurveda[1,2] lays great
47
+ emphasis on the concept of Prakriti[3], because that
48
+ concept provides a preliminary assessment of patients‟
49
+ physiological tendencies when faced by stressors[4],
50
+ continuing exposure to which will inevitably lead to
51
+ pathogenesis.[5] In the historical system, many Vaidyas
52
+ were trained to use Nadi Vigyan.[6,7] Ayurveda‟s system
53
+ of pulse diagnosis, in addition to Dashavidha Pariksha,
54
+ for the all-important evaluation of Prakriti and Vikriti in
55
+ those who came to consult them.[8]
56
+
57
+ The drift away from traditional systems of healthcare
58
+ under British influence[9,10], led to neglect of Ayurveda
59
+ and its systems of diagnosis and treatment. Medical
60
+ training colleges did not cover them, though Vaidyas
61
+ trained by traditional Guru-Shishya principles continued
62
+ to learn them. More recently, this been remedied with
63
+ present Ayurveda training institutions teaching them as
64
+ part of their curriculum.[1]* The present need is to
65
+ develop equivalent ways to obtain the same patient
66
+ information.
67
+ A
68
+ previous
69
+ paper[11]
70
+ described
71
+ the
72
+ development and testing of a questionnaire for children.
73
+ We ourselves have developed a separate questionnaire,
74
+ the Kashyapa Prakriti Inventory (KPI), aiming to
75
+ evaluate Prakriti in adolescents. This paper describes its
76
+ administration to adolescents before and after training in
77
+ a 90-minute Yoga module, designed in accordance with
78
+ the principles of the Integrated Approach to Yoga
79
+ Therapy[12] (IAYT).
80
+
81
+ Historically, Yoga originated in India as the ancient
82
+ Vedic civilization‟s system of personal development for
83
+ the children of Rishis, Kings and other leaders of
84
+ society.[13] The discipline is informally described in the
85
+ first Upanishads[14], and slowly acquired a formal status
86
+ as the path to union (Yuj) with the Divine[15], and
87
+ consequent release from the cycle of birth and death.[16]
88
+
89
+ Yoga focuses on gaining mastery over body and mind[17]
90
+ and consequent acceleration to gaining life‟s true goal of
91
+ self-realization and enlightenment.[18] It integrates body,
92
+ mind and spirit using a comprehensive, holistic approach
93
+ in practices emphasizing breathing and stretching,
94
+ postures and pranayama, chanting and meditation, as
95
+ detailed below. Yoga practices for the individual may
96
+ SJIF Impact Factor 6.044
97
+
98
+ Research Article
99
+ ejbps, 2019, Volume 6, Issue 11, 205-211.
100
+ European Journal of Biomedical
101
+ AND Pharmaceutical sciences
102
+
103
+ http://www.ejbps.com
104
+
105
+
106
+ ISSN 2349-8870
107
+ Volume: 6
108
+ Issue: 11
109
+ 205-211
110
+ Year: 2019
111
+ *Corresponding Author: Alex Hankey
112
+ Distinguished Professor of Yoga and Physical Science S-VYASA, Prashanthi Kutiram Campus, Manchenahalli, Kalluballu Post, Jigani, Anekal
113
+ Taluk, Bengaluru District, Karnataka 560105.
114
+
115
+
116
+
117
+
118
+
119
+
120
+
121
+ ABSTRACT
122
+ Background: Ayurveda emphases the prakriti concept as fundamental to assessing patients‟ physiologies. Recent
123
+ decades have proposed new ways to evaluate it. Previous papers describe formulation and testing of new
124
+ inventories to evaluate physiological and psychological aspects of prakriti in children and adolescents. Here, we
125
+ report changes in adolescents pre-post a Yoga intervention. Methodology: The study was conducted at a high
126
+ school and PU-college level on 82 adolescents, aged 15.29±1.65 years. The Yoga module was given thrice per
127
+ week for four weeks. It included Yoga breathing/stretching practices, postures, Mind Sound Resonance
128
+ Technique, mantra recitation and relaxation techniques. The Inventory was administered pre-and-post the
129
+ intervention. Statistical analysis used SPSS-21.0 Wilcoxon Signed-Ranks-Test. Results: Vata decreased, p<0.05;
130
+ Pitta and Kapha increased, p<0.05. Discussion: Participant‟s initial states were Vata dominant. Results indicate
131
+ that their tridosha became more balanced; psychologies calmer, personalities steadier, causing fewer problems.
132
+ Changes are attributable to alteration of underlying Tridoshas; epigenetics may provide an explanation.
133
+
134
+ KEYWORDS: Prakriti, Psychology, Vata, Pitta, Kapha, Yoga.
135
+
136
+ Kaur et al. European Journal of Biomedical and Pharmaceutical Sciences
137
+
138
+
139
+ www.ejbps.com
140
+
141
+ 206
142
+ also include consideration of bodily compositions. The
143
+ texts hold that nature and body are directly related to
144
+ each other as described in the phrase „Avinabhaava
145
+ Sambandha‟[19], inseparable connection.
146
+
147
+ Today, many top Yoga research institutions like
148
+ NIMHANS
149
+ and
150
+ Kaivalyadhama[20,21],
151
+ and
152
+ other
153
+ academic organizations like Harvard University[22] and
154
+ Patanjali Yoga Peeth[23], have worked with great
155
+ dedication to observe benefits of Yoga practices and
156
+ validate them. Studies have been done on all age groups:
157
+ children[24]; adolescents[25]; adults[26] and the elderly.[27]
158
+ In adolescents (the concern of this study), effects of yoga
159
+ have been seen in such fields as: increased academic
160
+ motivation and persistence[28]; social behavior[25]; coping
161
+ with stress[29], dealing with anxiety[30], and similarly yoga
162
+ as a complementary treatment for the quality of life of
163
+ adolescents suffering from IBS[31], etc. However, there
164
+ seems to be no study of possible effects of yoga on
165
+ Prakriti in adolescents; hence the present study.
166
+
167
+ Allied to yoga is the ancient Vedic system of medicine,
168
+ Ayurveda.[1-3] According to Ayurveda, the human body is
169
+ organized by three fundamental physiological principles
170
+ called Doshas that govern all bodily functions[32], Vata
171
+ dosha, Pitta dosha & Kapha dosha.[33] Strictly speaking,
172
+ the word „Dosha‟ means impurity, because Doshas may
173
+ express imbalances in the composition of important
174
+ aspects of the physiology.[34] However, the Ashtanga
175
+ Sangraha by Vaghbata, related to the third of Ayurveda’s
176
+ main three texts[1-3], states that when functioning in
177
+ balance, Doshas are „Dhatus‟, i.e. they nourish &
178
+ support the system.[35] A fundamental idea in Ayurveda
179
+ is that each well-functioning Dosha possesses an
180
+ intrinsic strength, Bala[36], that may vary from person to
181
+ person, e.g. the strength of a person‟s digestion is
182
+ proportional to the strength of their Jataragni, an aspect
183
+ of their Pitta Dosha. If Jataragni and hence Pitta Bala is
184
+ strong, then digestion is good[37], but if it is low, then
185
+ weak digestion may give rise to toxicity, known as
186
+ Ama[38], and so to disease.
187
+
188
+ The relative strengths of the three doshas are
189
+ summarized in Ayurveda‟s theory of Prakriti, or
190
+ „physiological types‟.[39] The dominant Dosha is used to
191
+ name the corresponding Prakriti: a Vata Prakriti type
192
+ has Vata Dosha dominant in their system; a Pitta
193
+ Prakriti type has Pitta Dosha dominant, while a Kapha
194
+ Prakriti type possesses dominant Kapha Dosha. If a
195
+ person has the strongest two Dosha Balas close to each
196
+ other, then they belong to a combination of types, Vata-
197
+ Pitta, Pitta-Kapha or Kapha-Vata.[40]
198
+
199
+ When such matters are considered in further depth,
200
+ imbalances between a person‟s Doshas are recognized to
201
+ increase susceptibility to disease. Dosha imbalances are
202
+ thus seen as precursors to all diseases, both physical and
203
+ mental.[41] Disease in Ayurveda is seen as driven by both
204
+ general and specific considerations. Dosha imbalances
205
+ tell the general class of pathology, while more detailed
206
+ considerations
207
+ tell
208
+ the
209
+ specific
210
+ disease.
211
+ If
212
+ one
213
+ subcomponent of Vata is driven out of balance by
214
+ another subcomponent of Vata, the result is a Vata-vyadi,
215
+ a neurological disorder.[42] For example, Pranavruta-
216
+ samana vatavyadhi[43], where the Vata subdosha, prana,
217
+ drives another Vata subdosha, samana, out of balance
218
+ corresponds to Alzheimers disease. Charaka Samhita[1]
219
+ also mentions several related Vata-vyadhis which
220
+ correspond to other neurological disorders, such as MS,
221
+ Parkinson‟s disease, Hemiplegia and Paraplegia.[42]
222
+
223
+ Common understanding of Ayurveda propagates the
224
+ view that an individual‟s Prakriti is fixed from birth – or
225
+ rather from the time of conception and zygote formation.
226
+ In reality, the process of Prakriti selection is more
227
+ complex. Sushruta Samhita states[44]: the seven prakriti
228
+ types have contributions from conception & birth,
229
+ family, place, time, age, balas and factors acquired by
230
+ the individual. However, Gangadhar Tika‟s celebrated
231
+ commentary[45] on Charaka Samhita interprets the
232
+ concept of Prakriti as a state of „equilibrium of doshas‟,
233
+ so that other types with dominance of single, or pairs of,
234
+ Doshas, are states of Arogya, i.e. pathophysiology –
235
+ Vikriti.
236
+
237
+ In studies of human psychophysiology, it is natural to
238
+ connect strengths of various organ systems to properties
239
+ of the personality. A strong digestion, high Pitta Dosha,
240
+ may be connected to a „fiery personality‟, showing anger
241
+ more easily (Choleric)[46]; a person with dominant Vata
242
+ Dosha may be more subject to attacks of anxiety, and
243
+ neurotic disorders.[47] People with dominant Kapha
244
+ Dosha may be more relaxed, happier and easy-going
245
+ than their peers, but will be more susceptible to
246
+ overweight, and thus to the metabolic syndrome
247
+ spectrum of disorders.[48]
248
+
249
+ In this way, ancient Indian Psychology associates
250
+ Doshas with different facades of the human personality.
251
+ The Ayurveda classics propose seven types of Prakriti:
252
+ Vataja, Pittaja, Kaphaja, Vata-Pittaja, Vata-Kaphaja,
253
+ Pitta-Kaphaja and Sama, with each of which a different
254
+ style of personality may be associated.[49]
255
+
256
+ In addition to these seven physiological types, the
257
+ Ayurveda
258
+ texts
259
+ introduce
260
+ sixteen
261
+ mental
262
+ types,
263
+ categorized
264
+ according
265
+ to
266
+ three
267
+ different
268
+ basic
269
+ dimensions, known as Gunas or qualities. The first,
270
+ Sattvoguna, has seven types associated with it; the
271
+ second, Rajoguna, has six related types, and the third,
272
+ Tamoguna has three associated types.[50] Thus, besides
273
+ its personality types connected to the physiology,
274
+ Ayurveda texts also utilize these three, more spiritually-
275
+ oriented, personality concepts. Sattva – luminous with
276
+ wisdom and self-knowledge; Rajas – more focused on
277
+ enjoyment and pleasures in the external world, and
278
+ driven by impulsiveness, aggression etc.; and Tamas –
279
+ dragged down with inertia from failure to adhere to high
280
+ moral precepts, past disasters in life etc.[51]
281
+
282
+ Kaur et al. European Journal of Biomedical and Pharmaceutical Sciences
283
+
284
+
285
+ www.ejbps.com
286
+
287
+ 207
288
+ These last three qualities (Gunas) of personality,
289
+ Triguna, are often associated with Yoga, due to their use
290
+ to assess an individual‟s personal capacity for spiritual
291
+ growth: a soul is thought to evolve from Tamas
292
+ dominance to Rajas dominance, and on to Sattva
293
+ dominance, which is transcended in the final stages of
294
+ spiritual liberation. Such a process may take many
295
+ lifetimes.[52]
296
+
297
+ Many studies of these concepts from Yoga and Ayurveda
298
+ have been carried out. Those on adolescents are clearly
299
+ more relevant to the study reported here. For example, in
300
+ a study in a public school, Yoga practice was seen to
301
+ improve
302
+ adolescent‟s
303
+ mood
304
+ and
305
+ affect.[53]
306
+ An
307
+ uncontrolled pilot study of a module based on Patanjali‟s
308
+ ashtanga Yoga for children and adolescents has observed
309
+ benefits for weight management and psychological well-
310
+ being.[54] A paper offering guidance to clinicians on
311
+ prescription of Yoga as a complementary therapy for
312
+ children and adolescents has proved very beneficial.[55]
313
+ In these various fields, studies of adolescents have
314
+ broadened scientific understanding gained from studies
315
+ on adults.
316
+
317
+ Previous
318
+ papers
319
+ on
320
+ young
321
+ people
322
+ include
323
+ the
324
+ development and assessment of a self-rating scale to
325
+ measure Tridoṣhas in children aged 6 to 12 years.[56] One
326
+ study assessed changes in Triguna in children observed
327
+ in a 10-day Personality Development Camp.[57] Another
328
+ found that yoga / meditation training improved abilities
329
+ to learn self-control and self-care in adolescent sex
330
+ offenders.[58] A further study observed that exercise,
331
+ Yoga and meditation improved adolescents‟ depressive
332
+ and anxiety disorders.[59] Management through yoga of
333
+ academic anxiety was also considered, while effects of a
334
+ youth empowerment seminar on adolescents‟ impulsive
335
+ behavior has been reported.[25] A feasibility study has
336
+ validated a Yoga module for emotional and behavioral
337
+ disorders in adolescents and younger children.[60]
338
+
339
+ Medically, a study has measured effects of yoga practice
340
+ on stress, depression, and health-related quality of life in
341
+ a non-clinical sample of adolescents, finding it very
342
+ useful.[61] Similarly yoga as a complementary treatment
343
+ for the quality of life of adolescents suffering from IBS,
344
+ hemophilia, cancer, and emotional and behavioral
345
+ disorders was found highly beneficial, as was a study of
346
+ the subjective experience of yoga as a management
347
+ strategy for stress and depression in pregnant, urban,
348
+ African-American adolescents.[62] Finally, a literature
349
+ review has evaluated the effects of yoga practice on
350
+ pulmonary function in healthy adolescents, including
351
+ perspectives on barriers to, and facilitators of, physical
352
+ activity.[63]
353
+
354
+ AIMS AND OBJECTIVES
355
+ The aim of this study was to evaluate the use of the new
356
+ KPI for adolescents. The objective was to administer the
357
+ inventory pre and post a Yoga program and assess any
358
+ changes. To this end, the study assessed the effects on
359
+ adolescents of an IAYT Yoga module designed for that
360
+ purpose. The research hypotheses were that the module
361
+ would have significant observable changes on each
362
+ variable being assessed. The null hypotheses were either
363
+ that such changes would not occur, or that they would
364
+ not attain p < 0.05 significance.
365
+
366
+ MATERIALS AND METHODS
367
+ Study Protocol (see Figure 1): The study was conducted
368
+ in Vivekananda Education Centre, Jayanagar and MES
369
+ Pre-University college, Maleshwaram, Bengaluru. It was
370
+ a Pre-Post design on 82 randomly selected adolescents
371
+ aged 13-18 years. For the mean ages for each gender and
372
+ both together, see Table 1.
373
+
374
+ Table 1: Age Distribution by Gender.
375
+ AGE
376
+ 13 YRS
377
+ 14 YRS
378
+ 15 YRS
379
+ 16 YRS
380
+ 17 YRS
381
+ 18 YRS
382
+ TOTAL
383
+ Mean±SD
384
+ BOYS
385
+ 8
386
+ 9
387
+ 8
388
+ 9
389
+ 7
390
+ 6
391
+ 47
392
+ 15.34±1.66
393
+ GIRLS
394
+ 7
395
+ 6
396
+ 7
397
+ 6
398
+ 5
399
+ 4
400
+ 35
401
+ 15.23±1.66
402
+ TOTAL
403
+ 15
404
+ 15
405
+ 15
406
+ 15
407
+ 12
408
+ 10
409
+ 82
410
+ 15.29±1.65
411
+ Caption: Table 1 shows numbers of students in each year of age according to gender and in total.
412
+
413
+ Inclusion Criteria: Physically and Mentally Healthy,
414
+ Either Gender, Aged 13 to 18 years.
415
+
416
+ Exclusion Criteria: Attention Deficit Hyperactive
417
+ Disorder, Psychosis, Autism / Mentally Challenged.
418
+
419
+ Intervention: 90-minute Integrated Yoga Module (see
420
+ Table 2) with seven different sections- Breathing
421
+ Exercises,
422
+ Dynamic
423
+ Exercises
424
+ including
425
+ Suryanamaskara, Asanas, Pranayamas, Chanting, Yogic
426
+ Games, and Relaxation Techniques; given 3 times per
427
+ week for four weeks. Also, participants were instructed
428
+ to practice at home daily for the other days of each week,
429
+ and given a printed sheet of the module to use to direct
430
+ their practices.
431
+
432
+
433
+
434
+
435
+
436
+
437
+
438
+
439
+
440
+
441
+
442
+
443
+
444
+ Kaur et al. European Journal of Biomedical and Pharmaceutical Sciences
445
+
446
+
447
+ www.ejbps.com
448
+
449
+ 208
450
+ Table 2: Integrated Yoga Module.
451
+ SECTION
452
+ PRACTICE
453
+ TIME (mins)
454
+ 1. Breathing Exercises
455
+ Hands In & Out Breathing
456
+ 2min
457
+
458
+ Vertical Hand Stretch
459
+ 1min
460
+
461
+ Ankle Stretch
462
+ 1min
463
+
464
+ Tiger Breathing
465
+ 1min
466
+
467
+ Dog Breathing
468
+ 1min
469
+
470
+ Rabbit Breathing
471
+ 1min
472
+
473
+ Sectional Breathing
474
+ 2min
475
+ 2. Dynamic Exercise
476
+ Hand Swing
477
+ 2min
478
+
479
+ Twisting
480
+ 1min
481
+
482
+ Alternate Side Bending
483
+ 1min
484
+
485
+ Forward & Backward Bending
486
+ 1min
487
+
488
+ Jogging
489
+ 3min
490
+
491
+ Pavanamuktasana Kriya
492
+ 4min
493
+ Suryanamaskara
494
+ Suryanamaskara
495
+ 5 min
496
+ 3. Asana
497
+ Ardhakati chakrasana
498
+ 1min
499
+
500
+ Padahastasana
501
+ 2min
502
+
503
+ Ardhachakrasana
504
+ 1min
505
+
506
+ Ushtrasana
507
+ 2min
508
+
509
+ Paschimottanasana
510
+ 2min
511
+
512
+ Suptavajrasana
513
+ 1min
514
+
515
+ Makarasana
516
+ 1min
517
+ 4. Pranayama
518
+ Nadishuddhi
519
+ 3min
520
+
521
+ Kapalabhati (a Yoga Kriya)
522
+ 2min
523
+
524
+ Bhramari
525
+ 1min
526
+
527
+ Sheetali
528
+ 1min
529
+ 5. Chanting
530
+ Vedic Chanting (Choice of 10 Sections)
531
+ 6min
532
+ Different on Different Days
533
+ Bhagavad Gita
534
+ 8min
535
+
536
+ Nadanusandhana / Omkara Meditation
537
+ 4min/5min
538
+ 6. Yogic Games: Choice of -
539
+ Find Ram-Shyam
540
+ 5min
541
+ Different on Different Days
542
+ Accepting Criticism
543
+ 2min
544
+
545
+ Find-a-Leader
546
+ 1min
547
+
548
+ Search Engine
549
+ 5min
550
+ 7. Relaxation Technique
551
+ IRT, QRT & DRT (from SMET Program)
552
+ 1min,3min,7min
553
+
554
+ Assessment: The KPI was administered before and after
555
+ the four-week intervention.
556
+
557
+ Statistical Analysis: Employed SPSS version 21.0. First,
558
+ the Kolmogorov-Smirnov test was used to check whether
559
+ the data were normally distributed; since it was not, the
560
+ Wilcoxon Signed Ranks Test was applied to assess the
561
+ significance of within-group changes in the data.
562
+
563
+ RESULTS
564
+ Results are displayed in Table 3 below, which shows that
565
+ Dosha Prakriti measured according to the KPI changed
566
+ highly significantly for each Dosha. Changes generally
567
+ indicate improved health, since, once imbalances have
568
+ set in, excess Vata Dosha tends to drive other doshas
569
+ further out of balance. The decreases in Vata Dosha seen
570
+ over the course of the four-week period indicate more
571
+ steadiness of mind suggesting reductions in a. Chitta-
572
+ Vritti activity[64], and b. generally unnerving speed of
573
+ thought, which lead to speedier actions on a physical
574
+ level. This result also suggests slowing of the breath and
575
+ / or breathing. In contrast, the other two Doshas, Pitta
576
+ Dosha and Kapha Dosha were both strikingly much
577
+ stronger than Vata Dosha at the end of the month.
578
+
579
+ Table 3a: Pre and Post Dosha Values of Present Study.
580
+ VATA
581
+ PITTA
582
+ KAPHA
583
+ Pre
584
+ Post
585
+ Pre
586
+ Post
587
+ Pre
588
+ Post
589
+ 11.28±3.12
590
+ 8.09±2.60
591
+ 12.91±3.24
592
+ 15.86±3.32
593
+ 16.37±3.34
594
+ 19.59±3.25
595
+ Table 3b: Pre and Post Dosha Values of Patil Study.
596
+ 10.74±3.42
597
+ 7.98±2.11†
598
+ 12.80±3.57
599
+ 13.96±1.85†
600
+ 11.80±4.42
601
+ 13.72±2.04
602
+ Caption: Tables 3as & 3b display Pre and Post Values of Dosha Prakritis for Adolescents (3a) & Children (3b)
603
+
604
+
605
+
606
+ Kaur et al. European Journal of Biomedical and Pharmaceutical Sciences
607
+
608
+
609
+ www.ejbps.com
610
+
611
+ 209
612
+ DISCUSSION
613
+ The last statement requires comment: high Kapha levels
614
+ can precipitate Kapha Rogas, of which obesity and
615
+ related disorders like metabolic syndrome are all too
616
+ common among today‟s population. However, the
617
+ participants‟ ages must be taken into consideration: ages
618
+ 5 to 13 are dominated by anabolism related to physical
619
+ growth and thus naturally exhibit high levels of Kapha
620
+ Dosha; similarly, ages 13 to 18 are dominated by Pitta
621
+ Dosha, as the physicality of youth comes into play.
622
+ Observing higher levels of Pitta and Kapha Doshas,
623
+ when assessing youth in the age range addressed in this
624
+ study is quite acceptable. The final Dosha Prakriti scores
625
+ therefore reflect processes taking place all during the 4-
626
+ week module practice. They can be interpreted as
627
+ indicating restoration of Dosha Prakriti values towards
628
+ their usual ranges for this age group.
629
+
630
+ Comparison with Patil‟s study[11] is instructive. Pre-post
631
+ percentage changes obtained in Patil‟s study and this
632
+ study are as follows: (Vata: -25.6, -28.2) (Pitta: +8.90,
633
+ +22.8) and (Kapha: +16.2, +19.7). The two studies
634
+ therefore show similar changes in Dosha scores after a
635
+ one month Yoga module intervention; the only major
636
+ difference being in percent change in Pitta score, with
637
+ adolescents, in a naturally Pitta stage of life, showing
638
+ greater increase. This observed difference was almost to
639
+ be expected.
640
+
641
+ Generally, in recent times, because of modern Ahara-
642
+ Vihara habits common in this stage of life, we see Dosha
643
+ Balas opposite to those said to characterize the age group
644
+ in question. The data therefore indicate that inculcating
645
+ the module‟s Yoga practices at an early age will help
646
+ restore desired Dosha balances, and, as Vata Dosha
647
+ reduces and Pitta Dosha increases, the memory,
648
+ intelligence and basic learning skills characteristic of
649
+ youth.
650
+
651
+ Practising dynamic exercises like those in the module
652
+ will tend to induce or increase sweating, sweda.
653
+ According to Ayurveda classics, swedana is a treatment
654
+ that reduces Vata Dosha, and that will benefit the three
655
+ gunas by reducing Rajas and Tamas.
656
+
657
+ Strengths: The strengths of the study are: a. it is the first
658
+ to assess the effect of Yoga on Tridosha in adolescents;
659
+ b. being a pre-post design, the first to observe significant
660
+ changes in state in all three Doshas, Vata, Pitta and
661
+ Kapha; c. the intervention can bring changes in Tridosha
662
+ large enough to significantly alter adolescents‟ physical
663
+ and psychophysiological states – and possibly reshape
664
+ their personalities.
665
+
666
+ Limitations: No control group was included in the
667
+ study.
668
+
669
+ Future Research: Any future study should include a
670
+ control group along with the Yoga group. A randomized
671
+ controlled trial would then be the best study design, but
672
+ with the following caveat: here, the same Yoga module
673
+ was used for all the participants, despite their having
674
+ different Dosha Prakritis; future studies should use
675
+ several Yoga modules, each adapted to a particular
676
+ Dosha Prakriti. Then we may anticipate improved
677
+ progress towards Sama Prakriti being achieved in all
678
+ cases.
679
+
680
+ CONCLUSIONS
681
+ The study suggests that the four-week IAYT Yoga
682
+ module employed in the intervention brings significant
683
+ balancing benefits for Tridoshas in adolescents. It may
684
+ also benefit levels of the three Gunas. Practiced regularly
685
+ over a sufficient period of time, breathing techniques like
686
+ sectional breathing, Nadi Shuddhi, and Sitali, named in
687
+ the yoga module help to reduce Vata at the physical
688
+ level, and simultaneously overcome Tamas. Adopting
689
+ dynamic practices like Suryanamaskara, Asanas &
690
+ Kapalabhati, Pitta increases so that the individual
691
+ him/herself transforms inertia (Tamas) into Rajas, thus
692
+ bringing lightness and flexibility to the body and
693
+ dynamism to brain activity (Rajas). In yogic lore, this is
694
+ considered an advance on the path to transcending the
695
+ influence of Gunas. Along with these practices, addition
696
+ of meditation, Japa, breath retention in Pranayama and
697
+ increasing time of maintaining each Asana helps to
698
+ increase stability of body and mind (Sattva).[57]
699
+
700
+ ACKNOWLEDGEMENT
701
+ We would like to thank all the students from the school
702
+ and college for their active participation, also the
703
+ management for their kind support. I would like to thank
704
+ Dr. Suchitra for the timely discussions regarding the
705
+ study. All the experts involved in the study.
706
+
707
+ REFERENCES
708
+ 1. Panday GS. Caraka Samhita: Hindi commentary,
709
+ fifth edition: Choukamba publications, New Delhi,
710
+ 1997; 1(4): 5-7.
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+ 2. Shastry KA. Sushruta Samhita: Hindi commentary,
712
+ fifteenth edition: Choukamba publications, New
713
+ Delhi, 2002; 1(1): 1-2.
714
+ 3. Tripati R. Ashtanga Sangraha: Hindi commentary,
715
+ second edition: Choukamba publications, New
716
+ Delhi, 2001; 19(2): 347.
717
+ 4. Pandey GS. Charaka Samhita: Hindi commentary,
718
+ fifth edition: Choukamba Publications, New Delhi,
719
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+ fifteenth edition: Choukamba Publications, New
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+ Delhi, 2002; 21(27): 32-36.
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+ 6. Tripathi I, Tripathi D. Yogaratnakara Chikitsa
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+ Prakaranam: Chowkamba Krishnadas Academy,
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790
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806
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815
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816
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+ Academy, Varanasi, 2007.
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+ 54. Benavides S, Caballero J. Ashtanga yoga for
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subfolder_0/A composite of BMI and waist circumference may be a better obesity metric in Indians with high risk for type 2 diabetes An analysis of NMB-2017, a.txt ADDED
@@ -0,0 +1,865 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ A composite of BMI and waist circumference may
2
+ be a better obesity metric in Indians with high risk
3
+ for type 2 diabetes: An analysis of NMB-2017, a
4
+ nationwide cross-sectional study
5
+ Murali Venkatrao, Raghuram Nagarathna, Suchitra S. Patil, Amit Singh, S.K. Rajesh,
6
+ Hongasandra Nagendra *
7
+ Division of Yoga and Life Sciences, SVYASA University, Prashanti Kutiram, Vivekananda Road, Kalluballu Post, Jigani, Bengaluru 560015,
8
+ India
9
+ A R T I C L E
10
+ I N F O
11
+ Article history:
12
+ Received 13 October 2019
13
+ Received in revised form
14
+ 26 December 2019
15
+ Accepted 27 January 2020
16
+ Available online 29 January 2020
17
+ Keywords:
18
+ Type 2 diabetes
19
+ BMI
20
+ Central fat
21
+ Obesity
22
+ Anthropometric
23
+ A B S T R A C T
24
+ Aims: Obesity measurement is a vital component of most type 2 diabetes screening tests;
25
+ while studies had shown that waist circumference (WC) is a better predictor in South
26
+ Asians, there is evidence that BMI is also effective. Our objective was to evaluate the effi-
27
+ cacy of BMIWC, a composite measure, against BMI and WC.
28
+ Methods: Using data from a nationwide randomized cluster sample survey (NMB-2017), we
29
+ analyzed 7496 adults at high risk for type 2 diabetes. WC, BMI, and BMIWC were evaluated
30
+ using Odds Ratio (OR), and Classification scores (Sensitivity, Specificity, and Accuracy).
31
+ These were validated using Indian Diabetes Risk Score (IDRS) by replacing WC with BMI
32
+ and BMIWC, and calculating Sensitivity, Specificity, and Accuracy.
33
+ Results: BMIWC had higher OR (2300) compared to WC (187) and BMI (226). WC, BMI, and
34
+ BMIWC were all highly Sensitive (075, 081, 070 resp.). But BMIWC had significantly higher
35
+ Specificity (0.36) when compared to WC and BMI (0.27 each). IDRSWC, IDRSBMI, and
36
+ IDRSBMIWC were all highly Sensitive (087, 088, 082 resp.). But IDRSBMIWC had significantly
37
+ higher Specificity (039) compared to IDRSWC and IDRSBMI (030, 031 resp.).
38
+ Conclusions: Both WC and BMI are good predictors of risk for T2DM, but BMIWC is a better
39
+ predictor, with higher Specificity; this may indicate that Indians with high values of both
40
+ central (high WC) and general (BMI > 23) obesity carry higher risk for type 2 diabetes than
41
+ either one in isolation. Using BMIWC in IDRS improves its performance on Accuracy and
42
+ Specificity.
43
+  2020 Elsevier B.V. All rights reserved.
44
+ 1.
45
+ Introduction
46
+ Diabetes is a serious and escalating health burden in India,
47
+ with an age-adjusted comparative prevalence of 10.4%. Over
48
+ 77 million people have been diagnosed with the disease. Of
49
+ equal concern is that an additional estimated 43 million peo-
50
+ ple have type 2 diabetes but are undiagnosed [1]. Obesity is a
51
+ well-known risk factor for Diabetes. In India, more than 135
52
+ https://doi.org/10.1016/j.diabres.2020.108037
53
+ 0168-8227/ 2020 Elsevier B.V. All rights reserved.
54
+ * Corresponding author.
55
+ E-mail address: [email protected] (H. Nagendra).
56
+ d i a b e t e s r e s e a r c h a n d c l i n i c a l p r a c t i c e 1 6 1 ( 2 0 2 0 ) 1 0 8 0 3 7
57
+ Contents available at ScienceDirect
58
+ Diabetes Research
59
+ and Clinical Practice
60
+ journal homepage: www.elsevier.com/locate/diabres
61
+ million individuals were affected by obesity [2]. There is thus
62
+ an urgent need to screen the general population for diabetes
63
+ risk and implement preventive lifestyle change interventions.
64
+ Many screening models have been developed to assess
65
+ diabetes risk [3]. All of these models include an obesity com-
66
+ ponent. The most commonly used model in India, the Indian
67
+ Diabetes Risk Score (IDRS) [4], uses Waist Circumference (WC)
68
+ for obesity; so does the German Diabetes Risk Score [5]. Other
69
+ models (Cambridge Risk Score [6] and Framingham Offspring
70
+ Diabetes Risk Score [7],) use Body Mass Index (BMI), while Fin-
71
+ nish Diabetes Risk Score [8] uses both WC and BMI.
72
+ However, it is not clear whether WC or BMI is better for
73
+ determining type 2 diabetes risk. Various studies [14–23] have
74
+ been done in this area and have drawn conflicting conclu-
75
+ sions. Some studies have found that WC is a better measure
76
+ of risk [17,18,21,22]. Other studies have drawn the opposite
77
+ conclusion [15,19]. At least one study has found both mea-
78
+ sures to be equally good [23]. Given the great breadth and
79
+ depth of these studies, these conflicting conclusions probably
80
+ point to the fact that each metric only partially captures the
81
+ etiological association between obesity and type 2 diabetes.
82
+ We postulated that a composite metric which combines
83
+ central and general obesity would be a better indicator than
84
+ either one in isolation. We defined a composite metric called
85
+ BMIWC and analyzed its performance as a risk factor.
86
+ 2.
87
+ Subjects, materials and methods
88
+ 2.1.
89
+ Study design
90
+ Niyantrita Madhumeha Bharata (‘‘Control of Diabetes in India”)
91
+ 2017, or NMB 2017, was a two-phased study undertaken
92
+ across 29 most populous states/union territories in India.
93
+ The twin objectives of the study were:
94
+ - (Phase 1) To estimate the prevalence of diabetes and predi-
95
+ abetes in 2017 simultaneously in all zones of India
96
+ - (Phase 2) To conduct an RCT using a validated yoga life-
97
+ style protocol
98
+ Phase 1 [9] was a nationwide cross-sectional survey using
99
+ a multi-level stratified cluster sampling technique with ran-
100
+ dom selection among urban and rural populations covering
101
+ 29 states and union territories of the country. In a door to door
102
+ survey, researchers used a questionnaire to collect data on
103
+ diabetes status and diabetes risk.
104
+ Phase 2 [9] involved a sub-sample of the phase-I partici-
105
+ pants, from which were selected high-risk individuals (those
106
+ with self-reported diabetes or for whom IDRS was 60) for
107
+ further assessment through blood tests and a more detailed
108
+ questionnaire; and to determine the efficacy of intervention.
109
+ The intervention was a 3-month practice of a standard Yoga
110
+ protocol [10].
111
+ 2.2.
112
+ Phase 1 sampling strategy
113
+ Sampling was done at 4 levels: Zones, States, Districts, and
114
+ Villages (rural) or Towns (urban). We chose 24 (of 29) states
115
+ and 4 (of 7) Union Territories. These states were grouped into
116
+ seven zones based on cultural homogeneity [9]. To ensure dis-
117
+ tricts samples within a state were not clustered, we grouped
118
+ the state into geographical regions and chose a district from
119
+ each region (e.g., if a state needed 3 districts, it was grouped
120
+ into north, south, and central).
121
+ Each district was also grouped into geographical regions,
122
+ and we chose:
123
+ 1. (Rural) up to four villages with population between 500 and
124
+ 1000.
125
+ 2. (Urban) up to four Census Enumeration Blocks (CEBs), such
126
+ that total population was around 2000.
127
+ All households within the selected village or CEB were
128
+ surveyed.
129
+ 2.3.
130
+ Phase 2 sampling strategy
131
+ From the Phase 1 sample, we selected adults of both genders
132
+ who had the ability to do yoga (and consented to doing it), and
133
+ satisfied one of the following criteria:
134
+ 1. Self-reported and newly diagnosed diabetes with or with-
135
+ out glycemic control, using/not using oral hypoglycemic
136
+ agents or insulin
137
+ 2. IDRS score was 60
138
+ 2.4.
139
+ Procedure for biochemical measures
140
+ All biochemical assays were carried out by the same method
141
+ by the same nationally accredited laboratory. HbA1c, the pri-
142
+ mary glycemic measure, was estimated by high-pressure liq-
143
+ uid
144
+ chromatography
145
+ using
146
+ VariantTM
147
+ II
148
+ Turbo
149
+ (Bio
150
+ Rad,
151
+ Hercules, CA) method [9].
152
+ 2.5.
153
+ Participants and outcomes
154
+ We included all individuals in Phase 2 for whom all the fol-
155
+ lowing data were available: WC, Weight, Height, Family his-
156
+ tory of diabetes, Age, Physical Activity, HbA1c, and Diabetes
157
+ Self Declaration (Yes or No). The sole outcome was whether
158
+ the individual had diabetes or not, as determined by the value
159
+ of HbA1c or self-declaration.
160
+ 2.6.
161
+ Definitions of obesity metrics
162
+ Values of WC and BMI were bucketed into five risk categories
163
+ (Table 1). The 5 categories for BMI were picked from the stan-
164
+ dardized ranges established for Asian populations [11]. For
165
+ WC, we added two more categories at the bottom and top of
166
+ the three categories established for the Asian Indian popula-
167
+ tion [4].
168
+ We created a composite obesity metric, BMIWC, which
169
+ combines BMI and WC according to the following algorithm:
170
+ If WC was <3, then BMI was scored as BMI – 1; if WC was
171
+ 3, the value of BMI remained unchanged. Thus, BMIWC rec-
172
+ ognizes that individuals with both low WC and high BMI are
173
+ at lower risk while individuals with high WC or high BMI
174
+ 2
175
+ d i a b e t e s r e s e a r c h a n d c l i n i c a l p r a c t i c e 1 6 1 ( 2 0 2 0 ) 1 0 8 0 3 7
176
+ are at higher risk. This adds an additional risk category at the
177
+ lower end, with a score of zero, designated ‘‘Ultra Low”
178
+ (Table 1).
179
+ Below are some examples of obesity risk scores, calculated
180
+ using data from NMB 2017:
181
+ 
182
+ Male with WC 85 cm, BMI 276 kg/m2 has: WC = 2, BMI = 4,
183
+ and BMIWC = 3
184
+ 
185
+ Male with WC 108 cm, BMI 26.3 kg/m2 has: WC = 4, BMI = 3,
186
+ and BMIWC = 3
187
+ 2.7.
188
+ Definitions of IDRS and its variants
189
+ The second part of the study sought to validate the efficacy of
190
+ BMIWC by replacing the obesity component of IDRS (WC) with
191
+ BMIWC. We also studied the efficacy of IDRS when the obesity
192
+ component is replaced by BMI. The modified risk scores were
193
+ called IDRSBMIWC and IDRSBMI resp. The definitions of IDRS [3],
194
+ IDRSBMI and IDRSBMIWC are shown in Table 2.
195
+ 2.8.
196
+ Analysis
197
+ Contingency table methods (for risk assessment) and confu-
198
+ sion matrix methods (for assessing classification efficacy)
199
+ were used to evaluate each obesity metric. Validation was
200
+ done by replacing WC with BMIWC as the obesity component
201
+ of IDRS and determining classification efficiency of the mod-
202
+ ified IDRS.
203
+ WC, BMI, and BMIWC were compared for their association
204
+ to type 2 diabetes risk. A contingency table of risk categories
205
+ and outcome was created for each metric, and v2 statistic was
206
+ calculated to measure risk association. Using the lowest risk
207
+ category as a reference, Odd Ratio (OR) calculated for each
208
+ risk category. They were also compared for their ability to
209
+ classify the population into two groups: people with type 2
210
+ diabetes and people without. An ROC curve was drawn for
211
+ each measure to determine the threshold score for classifica-
212
+ tion. Based on this threshold, a confusion matrix was created
213
+ for each measure. Efficacy of classification was determined by
214
+ calculating Sensitivity, Specificity, and Accuracy [12]. McNe-
215
+ mar’s statistic was calculated to determine the statistical sig-
216
+ nificance of the difference in Specificities, as discussed by
217
+ Hawass [13].
218
+ IDRS, IDRSBMI and IDRSBMIWC were compared for efficacy of
219
+ classification. An ROC curve was drawn for IDRSBMI and
220
+ IDRSBMIWC to determine classification thresholds. The thresh-
221
+ old for IDRS has already been determined to be 60 [4]. Using
222
+ these threshold values, Sensitivity, Specificity and Accuracy
223
+ were calculated. McNemar’s statistic was calculated to as
224
+ before to determine statistical significance. All analyses were
225
+ done using Python v.37. Pandas v.023 was used to import
226
+ data, calculate obesity metrics and risk levels. Contingency
227
+ table creation and calculation of risk measures were done
228
+ using Statsmodels v.0101. Confusion matrix creation and
229
+ calculation
230
+ of
231
+ classification
232
+ measures
233
+ were
234
+ done
235
+ using
236
+ Scikit-learn v.0213. v2 and McNemar’s statistics were calcu-
237
+ lated using Scipy v.130.
238
+ Ethical clearance was obtained by the EC of Indian yoga
239
+ association.
240
+ The
241
+ study
242
+ was
243
+ registered
244
+ in
245
+ CTRI
246
+ CTRI/2018/03/012804.
247
+ 3.
248
+ Results
249
+ 3.1.
250
+ Description of data
251
+ A total of 7496 individuals at high risk (60 on IDRS) for type 2
252
+ diabetes (3935 females, 3561 males) were analyzed. They var-
253
+ ied in age from 20 to 85 years (m = 4839, r = 1186). Waist cir-
254
+ Table 1 – Definitions of Obesity Metrics.
255
+ Metric
256
+ Risk Score
257
+ WC Value (in cm)
258
+ 6999* (female), 7999* (male)
259
+ 1 = Very Low (VL)
260
+ 70–7999 (female), 80–8999 (male)
261
+ 2 = Low (L)
262
+ 80–8999 (female), 90–9999 (male)
263
+ 3 = Moderate (M)
264
+ 90–9999 (female), 100–10999 (male)
265
+ 4 = High (H)
266
+  100 * (female), 110* (male)
267
+ 5 = Very High (VH)
268
+ BMI Value (in kg/m2)
269
+  1849
270
+ 1 = Very Low (VL)
271
+ 185–2299
272
+ 2 = Low (L)
273
+ 23–2749
274
+ 3 = Moderate (M)
275
+ 275–3249
276
+ 4 = High (H)
277
+ 325
278
+ 5 = Very High (VH)
279
+ BMIWC (dimensionless), values of BMI and WC below refer to risk scores
280
+ BMI = 1 & WC < 3
281
+ 0 = Ultra Low (UL)
282
+ BMI = 2 & WC < 3 OR BMI = 1 & WC  3
283
+ 1 = Very Low (VL)
284
+ BMI = 3 & WC < 3 OR BMI = 2 & WC  3
285
+ 2 = Low (L)
286
+ BMI = 4 & WC < 3 OR BMI = 3 & WC  3
287
+ 3 = Moderate (M)
288
+ BMI = 5 & WC < 3 OR BMI = 4 & WC  3
289
+ 4 = High (H)
290
+ BMI = 5 & WC  3
291
+ 5 = Very High (VH)
292
+ * Two additional categories added at the top and bottom of the three categories established for Asian Indian
293
+ populations.
294
+ d i a b e t e s r e s e a r c h a n d c l i n i c a l p r a c t i c e 1 6 1 ( 2 0 2 0 ) 1 0 8 0 3 7
295
+ 3
296
+ cumference varied from 60 to 150 cm (m = 91.21, r = 10.91) and
297
+ BMI varied from 12.2 to 66.2 kg/m2 (m = 28.13, r = 4.60). Fig. 1
298
+ shows the distribution of each of these characteristics across
299
+ relevant categories.
300
+ Total number with type 2 diabetes was 3079, of which 1093
301
+ individuals were
302
+ newly
303
+ diagnosed
304
+ and
305
+ 1986
306
+ were
307
+ self-
308
+ reported.
309
+ 3.2.
310
+ Risk analysis of obesity metrics
311
+ The v2 test of association showed statistically significant
312
+ association between obesity metrics and type 2 diabetes risk:
313
+ WC: v2(4, N = 7496) = 2910, p < 0001; BMI: v2(4, N = 7496)
314
+ = 66.58, p < 0001; BMIWC: v2(5, N = 7496) = 59.06, p < 0001.
315
+ Odds that a person in the lowest obesity category (VL for
316
+ WC and BMI, UL for BMIWC) had diabetes was calculated for
317
+ each obesity metric, which was used as the reference odds.
318
+ Odds were also calculated at each of the higher obesity
319
+ categories, and the odds ratio was determined by taking the
320
+ ratio of this with the reference odds.
321
+ The following OR values were seen at the highest risk cat-
322
+ egory (VH) for each obesity metric:
323
+ 
324
+ For WC: 187 (95% CI 1.47–2.37)
325
+ 
326
+ For BMI: 226 (95% CI 1.58–3.24)
327
+ 
328
+ For BMIWC: 230 (95% CI 1.51–3.51)
329
+ We can see that WC, BMI and BMIWC each higher odds in
330
+ the VH category compared to the reference (lowest) category.
331
+ But BMIWC outperformed WC and BMI by having a higher OR.
332
+ We also observed that the OR for BMIWC was higher at
333
+ every risk category than the corresponding scores for WC
334
+ and BMI, as seen in Fig. 2.
335
+ WC showed an actual decrease in OR between Moderate
336
+ (M) and High (H) risk levels but showed a dramatically
337
+ increased odds between High (H) and Very High (VH). This
338
+ non-monotonic behavior is an indication that the risk cate-
339
+ gories of WC don’t adequately capture increasing diabetes
340
+ risk. BMI encapsulates diabetes risk better by showing a
341
+ monotonically increasing OR. But BMIWC clearly outperforms
342
+ the WC and BMI: OR is monotonically increasing, and the
343
+ value of OR is higher at every risk category – as can be seen
344
+ by the blue line (representing BMIWC) lying above the orange
345
+ (WC) and green (BMI) lines.
346
+ 3.3.
347
+ Classification analysis of obesity metrics
348
+ We plotted ROC curves for WC, BMI, and BMIWC to determine
349
+ the classification thresholds for each measure. These curves
350
+ are shown in Fig. 3. We can see that a risk level of three
351
+ (Moderate) is the optimum threshold. Using this value, we
352
+ calculated Sensitivity, Specificity, and Accuracy. Table 3 shows
353
+ the results.
354
+ BMI had better Sensitivity (689%) when compared to WC
355
+ but showed the same Specificity. BMIWC showed slightly
356
+ decreased Sensitivity (700%) but vastly improved Specificity
357
+ (3401%) when compared to WC. In terms of Accuracy, BMI
358
+ was slightly better than WC (441%), and BMIWC was better
359
+ still (669%).
360
+ Matched sample tables for Specificity were created using
361
+ True Negative (TN) and False Positive (FP) counts, one for
362
+ BMIWC and WC, and another for BMIWC and BMI. Table 4
363
+ shows the counts of tied (FP-FP, TN-TN) and untied (TN-
364
+ FP, FP-TN) pairs. McNemar’s statistic calculated on the val-
365
+ ues untied pairs in these tables as described by Hawass
366
+ [12]. The results were: BMIWC and WC: v2 (1, N = 695)
367
+ = 23484, p < 0001; BMIWC and BMI: v2 (1, N = 410) = 40800,
368
+ p < 0001. This shows that the increase the Specificity of
369
+ BMIWC
370
+ as
371
+ compared
372
+ to
373
+ WC
374
+ and
375
+ BMI
376
+ is
377
+ statistically
378
+ significant.
379
+ 3.4.
380
+ Classification analysis of IDRS variants
381
+ We plotted ROC curves for IDRSBMI, and IDRSBMIWC to deter-
382
+ mine the classification thresholds for each score. These
383
+ curves are shown in Fig. 4. We can see that 60 is the optimum
384
+ threshold for IDRSBMI, and 70 is the threshold for IDRSBMIWC.
385
+ The threshold for IDRS has already determined to be 60 [3].
386
+ Table 2 – Definitions IDRS, IDRSBMI, and IDRSBMIWC.
387
+ Metric
388
+ Score
389
+ IDRS
390
+ Age
391
+ <35 years
392
+ 0
393
+ 35–49 years
394
+ 20
395
+ 50
396
+ 30
397
+ Physical Activity
398
+ Exercise [regular] + strenuous work
399
+ 0
400
+ Exercise [regular] or strenuous work
401
+ 20
402
+ No exercise and sedentary work
403
+ 30
404
+ Family History
405
+ No family history
406
+ 0
407
+ Either parent
408
+ 10
409
+ Both parents
410
+ 20
411
+ Obesity (WC)
412
+ WC Risk Score  2
413
+ 0
414
+ WC Risk Score = 3
415
+ 10
416
+ WC Risk Score  4
417
+ 20
418
+ Range of the Score
419
+ 0–100
420
+ IDRSBMI
421
+ Age, Physical Activity, Family History
422
+ are same as IDRS
423
+ 0–80
424
+ Obesity (BMI)
425
+ BMI Risk Score  2
426
+ 0
427
+ BMI Risk Score = 3
428
+ 10
429
+ BMI Risk Score  4
430
+ 20
431
+ Range of the score
432
+ 0–100
433
+ IDRSBMIWC
434
+ Age, Physical Activity, Family History are
435
+ same as IDRS
436
+ 0–80
437
+ Obesity (Composite)
438
+ If WC Risk Score  2
439
+ 0
440
+ BMI Risk Score  2
441
+ 0
442
+ BMI Risk Score = 3
443
+ 10
444
+ BMI Risk Score  4
445
+ 20
446
+ If Waist Risk Score > 2
447
+ BMI Risk Score  2
448
+ 10
449
+ BMI Risk Score = 3
450
+ 20
451
+ BMI Risk Score  4
452
+ 30
453
+ Range of the score
454
+ 0–110
455
+ 4
456
+ d i a b e t e s r e s e a r c h a n d c l i n i c a l p r a c t i c e 1 6 1 ( 2 0 2 0 ) 1 0 8 0 3 7
457
+ These values were used to calculate Sensitivity, Specificity,
458
+ and Accuracy. Table 3 shows the results.
459
+ IDRSBMI showed marginally better Sensitivity (127%) and
460
+ Specificity
461
+ (185%)
462
+ when
463
+ compared
464
+ to
465
+ IDRS.
466
+ IDRSBMIWC
467
+ showed slightly decreased Sensitivity (614%) but vastly
468
+ improved Specificity (2661%) when compared to IDRS. In
469
+ terms of Accuracy, IDRSBMI was slightly better than IDRS
470
+ (146%), and IDRSBMIWC was better still (479%).
471
+ Matched
472
+ sample
473
+ tables
474
+ for
475
+ Specificity
476
+ were
477
+ created
478
+ using True Negative (TN) and False Positive (FP) counts,
479
+ Fig. 1 – Respondent Characteristics, n = 7496.
480
+ d i a b e t e s r e s e a r c h a n d c l i n i c a l p r a c t i c e 1 6 1 ( 2 0 2 0 ) 1 0 8 0 3 7
481
+ 5
482
+ one for IDRSBMIWC and IDRS, and another for IDRSBMIWC
483
+ and IDRSBMI. Table 4 shows the counts of tied (FP-FP,
484
+ TN-TN)
485
+ and
486
+ untied
487
+ (TN-FP,
488
+ FP-TN)
489
+ pairs.
490
+ McNemar’s
491
+ statistic calculated on the values untied pairs in these
492
+ tables
493
+ as
494
+ described
495
+ by
496
+ Hawass
497
+ [12].
498
+ The
499
+ results were:
500
+ IDRSBMIWC
501
+ and
502
+ IDRS:
503
+ v2
504
+ (1,
505
+ N = 567) = 22604,
506
+ p < 0001;
507
+ IDRSBMIWC and IDRSBMI: v2 (1, N = 334) = 33200, p < 0001.
508
+ This shows that the increase the Specificity of IDRSBMIWC
509
+ as
510
+ compared
511
+ to
512
+ IDRS
513
+ and
514
+ IDRSBMI
515
+ is
516
+ statistically
517
+ significant.
518
+ 1
519
+ 1.2
520
+ 1.4
521
+ 1.6
522
+ 1.8
523
+ 2
524
+ 2.2
525
+ 2.4
526
+ UL
527
+ VL
528
+ L
529
+ M
530
+ H
531
+ VH
532
+ Odds Rao
533
+ Risk Categories
534
+ WC
535
+ BMI
536
+ BMIWC
537
+ Fig. 2 – Odds Ratio for WC, BMI, and BMIWC.
538
+ Fig. 3 – ROC Curves for WC, BMI, and BMIWC.
539
+ 6
540
+ d i a b e t e s r e s e a r c h a n d c l i n i c a l p r a c t i c e 1 6 1 ( 2 0 2 0 ) 1 0 8 0 3 7
541
+ 4.
542
+ Discussion and conclusions
543
+ Although obesity is an established risk factor for type 2 dia-
544
+ betes, it is unclear what the best anthropometric measure
545
+ for this is. Current studies in this area have focused on two
546
+ metrics – WC (for central fat), and BMI (for general adiposity).
547
+ While there are many studies that have investigated the link
548
+ between WC, BMI, and Diabetes, the result of these studies
549
+ paints a confusing picture.
550
+ Some studies have found that WC is a better predictor of
551
+ Diabetes than BMI. A 2016 [17] study of Chinese, Malays, Asian
552
+ Indians found that ‘‘Abdominal adiposity measures generally
553
+ performed better than BMI in identifying undiagnosed dia-
554
+ betes.”.
555
+ A
556
+ 2016
557
+ [18]
558
+ pooled
559
+ analysis
560
+ of
561
+ four
562
+ German
563
+ population-based cohort studies found that ‘‘there were
564
+ stronger associations between anthropometric markers that
565
+ reflect abdominal obesity (WC and WHR) and incident type-
566
+ 2 diabetes than for BMI and weight.” A 1991 [21] study of
567
+ South Asians settled in London found that ‘‘Insulin resistance
568
+ syndrome, prevalent in South Asian populations is associated
569
+ with a pronounced tendency to central obesity.” A 2008 [22]
570
+ collaborative analysis of cross-sectional data from 16 cohorts
571
+ from the DECODA study, which involved multiple Asian eth-
572
+ nicities, found that ‘‘WSR (Waist to Stature Ratio, a measure
573
+ of central fat) was stronger than BMI in association with
574
+ diabetes.”
575
+ Other studies have found BMI to be a better predictor of
576
+ Diabetes than WC. A 2018 [23] five-year prospective study of
577
+ elderly Chinese found that ‘‘BMI was the strongest predictor
578
+ of diabetes among both men and women.” A 2015 [16] study
579
+ of Asian Indian, Chinese, and Japanese found that ‘‘Popula-
580
+ tion Attributable Risk (PAR) for BMI was high among Indians.”
581
+ Still other studies have concluded that neither WC nor BMI
582
+ are reliable predictors of Diabetes. A 2000 [15] study of White,
583
+ Black, Hispanic Americans found that ‘‘the positive predictive
584
+ value (PPV) of WC for diabetes was low.” A 2018 [14] study of
585
+ Asian Americans found that ‘‘one in seventeen Asian Ameri-
586
+ Table 3 – Classification analysis.
587
+ Metric
588
+ Sensitivity
589
+ Specificity
590
+ Accuracy
591
+ WC
592
+ 075
593
+ 027
594
+ 047
595
+ BMI
596
+ 081
597
+ 027
598
+ 049
599
+ BMIWC
600
+ 070
601
+ 036
602
+ 050
603
+ IDRS
604
+ 087
605
+ 030
606
+ 053
607
+ IDRSBMI
608
+ 088
609
+ 031
610
+ 054
611
+ IDRSBMIWC
612
+ 082
613
+ 039
614
+ 056
615
+ Table 4 – Matched Samples tables for Specificity.
616
+ WC
617
+ BMIWC
618
+ IDRS
619
+ IDRSBMIWC
620
+ FP
621
+ TN
622
+ FP
623
+ TN
624
+ FP
625
+ 2676
626
+ 145
627
+ FP
628
+ 2605
629
+ 104
630
+ TN
631
+ 550
632
+ 1046
633
+ TN
634
+ 463
635
+ 1245
636
+ BMI
637
+ BMIWC
638
+ IDRSBMI
639
+ IDRSBMIWC
640
+ FP
641
+ TN
642
+ FP
643
+ TN
644
+ FP
645
+ 2821
646
+ 0
647
+ FP
648
+ 2709
649
+ 0
650
+ TN
651
+ 410
652
+ 1186
653
+ TN
654
+ 334
655
+ 1374
656
+ Fig. 4 – ROC Curves for IDRS, IDRSBMI, and IDRSBMIWC.
657
+ d i a b e t e s r e s e a r c h a n d c l i n i c a l p r a c t i c e 1 6 1 ( 2 0 2 0 ) 1 0 8 0 3 7
658
+ 7
659
+ cans with BMI less than 17 has diabetes.” The authors con-
660
+ cluded that regular screening for diabetes was required
661
+ within this group.
662
+ It is clear that neither metric adequately measures obesity
663
+ as it is related to diabetes risk. One reason could be confound-
664
+ ing factors that are inherent to each metric: a tall individual is
665
+ likely to have a higher WC and a muscular individual will
666
+ have a higher BMI, without being more obese. There could
667
+ be deeper, yet to be understood reasons as well.
668
+ Our approach was to study if a composite metric, which
669
+ combines both WC and BMI, would perform better as a risk
670
+ factor for type 2 diabetes. Following the suggestion of the
671
+ WHO expert consultation [11], our metric uses BMI as the
672
+ base metric and gives ‘‘credit” to individuals who had low
673
+ WC – i.e. reduce their risk level.
674
+ We have shown, through v2 analysis, that there is a statis-
675
+ tically significant association BMIWC and the outcome (type 2
676
+ diabetes). We have also shown that BMIWC is superior to WC
677
+ or BMI in predicting type 2 diabetes risk, as demonstrated
678
+ by higher values of OR at every risk category. We can thus
679
+ conclude that BMIWC is a better risk factor for type 2 diabetes
680
+ either central or general fat.
681
+ We also found WC, BMI, and BMIWC are similar in their
682
+ ability to pick individuals with type 2 diabetes from a popula-
683
+ tion (this is measured by Sensitivity): 81% of people with mod-
684
+ erate or higher BMI, 75% of people with moderate or higher
685
+ WC, and 70% of the people with moderate or higher BMIWC
686
+ had type 2 diabetes. Thus, individuals with type 2 diabetes
687
+ are likely to be higher on the obesity scale, regardless of
688
+ which metric is used.
689
+ But, to be useful as a risk factor, WC, BMI, and BMIWC
690
+ should be lower in individuals without type 2 diabetes (this
691
+ is measured by Specificity). We found that WC and BMI have
692
+ low Specificity: among people who did not have type 2 dia-
693
+ betes, only 27% had lower than moderate WC or BMI. How-
694
+ ever, BMIWC was significantly more specific, as 36% of
695
+ people without type 2 diabetes had lower than moderate
696
+ BMIWC. Thus, individuals who have either high central fat or
697
+ general adiposity are at higher risk of diabetes, while individ-
698
+ uals with both low central fat and low general adiposity are at
699
+ lower risk of diabetes. It follows that BMIWC is a better risk
700
+ factor for type 2 diabetes than just WC or BMI.
701
+ It is to be noted a viable screening score considers not just
702
+ obesity, but also other risk factors such as age, family history,
703
+ and physical activity. As mentioned in Section 1, IDRS is an
704
+ effective screening technique used in India which considers
705
+ all of these risk factors. We validated our conclusion that
706
+ BMIWC is a better measure of obesity by modifying IDRS to
707
+ replace
708
+ WC
709
+ with
710
+ BMI
711
+ (IDRSBMI)
712
+ and
713
+ then
714
+ with
715
+ BMIWC
716
+ (IDRSBMIWC). All three variants were highly sensitive: among
717
+ people with type 2 diabetes, 88% had IDRSBMI of 60 or more;
718
+ 87% had IDRS of 60 or more, while 82% had IDRSBMIWC of 70
719
+ or more. However, when selecting ONLY people with type 2
720
+ diabetes from within a high-risk population (Specificity),
721
+ IDRSBMIWC significantly outperformed IDRS by 2661% and
722
+ IDRSBMI by 2431%.
723
+ This is an important result from both public health and clin-
724
+ ical perspectives. Height, weight, and WC are typically avail-
725
+ able for a patient (or are easily measured). Thus, there is no
726
+ added cost to calculating BMIWC, and IDRSBMIWC. Given the
727
+ significantly better Specificity of IDRSBMIWC, it should be used
728
+ as a screening test in both public health and clinical situations.
729
+ 4.1.
730
+ Limitations of this study
731
+ We studied high-risk individuals (4108% of the study popula-
732
+ tion had type 2 diabetes). We would expect the risk measures
733
+ and Specificity to be different in a sample reflective of the
734
+ general population.
735
+ Our study of IDRSBMIWC has established a classification
736
+ threshold of 70. This threshold may change when future anal-
737
+ ysis will be done using data on individuals in all risk
738
+ categories.
739
+ 4.2.
740
+ Suggestions for future work
741
+ We postulated that a proper anthropometric measure of obe-
742
+ sity should take into account both central fat and general adi-
743
+ posity and have established that this is true among high-risk
744
+ Indians. Future work should expand this work by: (a) verifying
745
+ our conclusion within a population sample which includes
746
+ both high- and low-risk individuals, and (b) study BMIWC
747
+ among other ethnic groups.
748
+ Funding
749
+ Ministry of AYUSH, Govt. of India, routed through Central
750
+ Council for Research in Yoga and Naturopathy.
751
+ Role of the funding source
752
+ The study funder had no role in study design, collection, anal-
753
+ ysis, and interpretation of data. The authors had full access to
754
+ the data and the final responsibility to submit their results for
755
+ publication.
756
+ Declaration of Competing Interest
757
+ None.
758
+ Acknowledgements
759
+ We are thankful to (a) funding by the Ministry of AYUSH, Govt.
760
+ of India, routed through Central Council for Research in Yoga
761
+ and Naturopathy (b) the executive committee of Indian yoga
762
+ Association for conducting NMB (c) Art of Living Institute,
763
+ Vethathiri Maharishi College of Yoga, Patanjali Yogpeeth, PGI
764
+ Chandigarh, and SVYASA for providing more than 1200 vol-
765
+ unteers and (d) the members of the research advisory board
766
+ of NMB for their inputs at all stages of the study.
767
+ R E F E R E N C E S
768
+ [1] https://www.idf.org/aboutdiabetes/what-is-diabetes/facts-
769
+ figures.html. Date accessed: Dec 19, 2019.
770
+ [2] Ahirwar R, Mondal PR. Prevalence of obesity in India: a
771
+ systematic review. Diabetes Matab Syndr 2019;13(1):318–21.
772
+ Available from: https://doi.org/10.1016/j.dsx.2018.08.032.
773
+ 8
774
+ d i a b e t e s r e s e a r c h a n d c l i n i c a l p r a c t i c e 1 6 1 ( 2 0 2 0 ) 1 0 8 0 3 7
775
+ [3] Buijsse B, Simmons R, Griffin S, Schulze M. Risk assessment
776
+ tools for identifying individuals at risk of developing type 2
777
+ diabetes. Am J Epidemiol 2011;33:46–62. https://doi.org/
778
+ 10.1093/epirev/mxq019.
779
+ [4] Mohan V, Deepa R, Deepa M, Somannavar S, Datta M. A
780
+ simplified Indian Diabetes Risk Score for screening for
781
+ undiagnosed diabetic subjects. JAPI 2005;53:759–63.
782
+ [5] Schulze MB, Hoffmann K, Boeing H, et al. An accurate risk
783
+ score based on anthropometric, dietary, and lifestyle factors
784
+ to predict the development of type 2 diabetes. Diabetes Care
785
+ 2007;30(3):510–5. https://doi.org/10.2337/dc06-2089.
786
+ [6] Griffin SJ, Little PS, Hales CN, Wareham NJ. Diabetes risk
787
+ score: towards earlier detection of type 2 diabetes in general
788
+ practice. Diabetes Metab Res Rev 2000;16(3):164–71.
789
+ [7] Wilson PW, Meigs JB, Sullivan L, Nathan DM, D’Agostino Sr
790
+ RB. Prediction of incident diabetes mellitus in middle-aged
791
+ adults: the Framingham Offspring Study. Arch Intern Med
792
+ 2007;167(10):1068–74. https://doi.org/10.1001/
793
+ archinte.167.10.1068.
794
+ [8] Lindstro
795
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+ www.elsevierhealth.com/journals/ctim
18
+ A
19
+ comprehensive
20
+ yoga
21
+ programs
22
+ improves
23
+ pain,
24
+ anxiety
25
+ and
26
+ depression
27
+ in
28
+ chronic
29
+ low
30
+ back
31
+ pain
32
+ patients
33
+ more
34
+ than
35
+ exercise:
36
+ An
37
+ RCT
38
+ P.
39
+ Tekur a,∗, R.
40
+ Nagarathna a, S.
41
+ Chametcha a, Alex
42
+ Hankey a,
43
+ H.R.
44
+ Nagendra b
45
+ a Division
46
+ of
47
+ Yoga
48
+ &
49
+ Life
50
+ Sciences,
51
+ Swami
52
+ Vivekananda
53
+ Yoga
54
+ Research
55
+ Foundation
56
+ (SVYASA),
57
+ Bengaluru,
58
+ India
59
+ b SVYASA,
60
+ Bengaluru,
61
+ India
62
+ Available
63
+ online
64
+ 28
65
+ January
66
+ 2012
67
+ KEYWORDS
68
+ Yoga;
69
+ Chronic
70
+ low
71
+ back
72
+ pain;
73
+ Anxiety;
74
+ Depression;
75
+ Mobility
76
+ Summary
77
+ Introduction:
78
+ Previously,
79
+ outpatient
80
+ Yoga
81
+ programs
82
+ for
83
+ patients
84
+ with
85
+ chronic
86
+ low
87
+ back
88
+ pain
89
+ (CLBP)
90
+ lasting
91
+ several
92
+ months
93
+ have
94
+ been
95
+ found
96
+ to
97
+ reduce
98
+ pain,
99
+ analgesic
100
+ requirement
101
+ and
102
+ disability,
103
+ and
104
+ improve
105
+ spinal
106
+ mobility.
107
+ This
108
+ study
109
+ evaluated
110
+ changes
111
+ in
112
+ pain,
113
+ anxiety,
114
+ depression
115
+ and
116
+ spinal
117
+ mobility
118
+ for
119
+ CLBP
120
+ patients
121
+ on
122
+ short-term,
123
+ residential
124
+ Yoga
125
+ and
126
+ physical
127
+ exercise
128
+ programs,
129
+ including
130
+ comprehensive
131
+ yoga
132
+ lifestyle
133
+ modifications.
134
+ Methods:
135
+ A
136
+ seven
137
+ day
138
+ randomized
139
+ control
140
+ single
141
+ blind
142
+ active
143
+ study
144
+ in
145
+ an
146
+ residential
147
+ Holistic
148
+ Health
149
+ Centre
150
+ in
151
+ Bangalore,
152
+ India,
153
+ assigned
154
+ 80
155
+ patients
156
+ (37
157
+ female,
158
+ 43
159
+ male)
160
+ with
161
+ CLBP
162
+ to
163
+ yoga
164
+ and
165
+ physical
166
+ exercise
167
+ groups.
168
+ The
169
+ Yoga
170
+ program
171
+ consisted
172
+ of
173
+ specific
174
+ asanas
175
+ and
176
+ pranayamas
177
+ for
178
+ back
179
+ pain,
180
+ meditation,
181
+ yogic
182
+ counselling,
183
+ and
184
+ lectures
185
+ on
186
+ yoga
187
+ philosophy.
188
+ The
189
+ control
190
+ group
191
+ program
192
+ included
193
+ physical
194
+ therapy
195
+ exercises
196
+ for
197
+ back
198
+ pain,
199
+ and
200
+ matching
201
+ counselling
202
+ and
203
+ education
204
+ sessions.
205
+ Results:
206
+ Group
207
+ ×
208
+ time
209
+ interactions
210
+ (p
211
+ <
212
+ 0.05)
213
+ and
214
+ between
215
+ group
216
+ differences
217
+ (p
218
+ <
219
+ 0.05)
220
+ were
221
+ significant
222
+ in
223
+ all
224
+ variables.
225
+ Both
226
+ groups’
227
+ scores
228
+ on
229
+ the
230
+ numerical
231
+ rating
232
+ scale
233
+ for
234
+ pain
235
+ reduced
236
+ significantly,
237
+ 49%
238
+ in
239
+ Yoga
240
+ (p
241
+ <
242
+ 0.001,
243
+ ES
244
+ = 1.62),
245
+ 17.5%
246
+ in
247
+ controls
248
+ (p
249
+ =
250
+ 0.005,
251
+ ES
252
+ = 0.67).
253
+ State
254
+ anxiety
255
+ (STAI)
256
+ reduced
257
+ 20.4%
258
+ (p
259
+ < 0.001,
260
+ ES
261
+ =
262
+ 0.72)
263
+ and
264
+ trait
265
+ anxiety
266
+ 16%
267
+ (p
268
+ < 0.001,
269
+ ES
270
+ =
271
+ 1.09)
272
+ in
273
+ the
274
+ yoga
275
+ group.
276
+ Depression
277
+ (BDI)
278
+ decreased
279
+ in
280
+ both
281
+ groups,
282
+ 47%
283
+ in
284
+ yoga
285
+ (p
286
+ <
287
+ 0.001,
288
+ ES
289
+ = 0.96,)
290
+ and
291
+ 19.9%
292
+ in
293
+ controls
294
+ (p
295
+ <
296
+ 0.001,
297
+ ES
298
+ = 0.59).
299
+ Spinal
300
+ mobility
301
+ (‘Sit
302
+ and
303
+ Reach’
304
+ instrument)
305
+ improved
306
+ in
307
+ both
308
+ groups,
309
+ 50%,
310
+ in
311
+ yoga
312
+ (p
313
+ < 0.001,
314
+ ES
315
+ =
316
+ 2.99)
317
+ and
318
+ 34.6%
319
+ in
320
+ controls
321
+ (p
322
+ <
323
+ 0.001,
324
+ ES
325
+ = 0.81).
326
+ Conclusion:
327
+ Seven
328
+ days
329
+ intensive
330
+ residential
331
+ Yoga
332
+ program
333
+ reduces
334
+ pain,
335
+ anxiety,
336
+ and
337
+ depres-
338
+ sion,
339
+ and
340
+ improves
341
+ spinal
342
+ mobility
343
+ in
344
+ patients
345
+ with
346
+ CLBP
347
+ more
348
+ effectively
349
+ than
350
+ physiotherapy
351
+ exercises.
352
+ ©
353
+ 2012
354
+ Elsevier
355
+ Ltd.
356
+ All
357
+ rights
358
+ reserved.
359
+ ∗Corresponding
360
+ author
361
+ at:
362
+ Division
363
+ of
364
+ Yoga
365
+ and
366
+ Life
367
+ Sciences,
368
+ Swami
369
+ Vivekananda
370
+ Yoga
371
+ Research
372
+ Foundation
373
+ (a
374
+ Yoga
375
+ University),
376
+ #
377
+ 19,
378
+ Eknath
379
+ Bhavan,
380
+ Gavipuram
381
+ Circle,
382
+ K.G.
383
+ Nagar,
384
+ Bengaluru.
385
+ 560019.
386
+ Tel.:
387
+ +91
388
+ 80
389
+ 22639963.
390
+ E-mail
391
+ addresses:
392
393
394
+ (P
395
+ .
396
+ Tekur),
397
398
+ (R.
399
+ Nagarathna).
400
+ 0965-2299/$
401
+
402
+ see
403
+ front
404
+ matter
405
+ ©
406
+ 2012
407
+ Elsevier
408
+ Ltd.
409
+ All
410
+ rights
411
+ reserved.
412
+ doi:10.1016/j.ctim.2011.12.009
413
+ 108
414
+
415
+ P
416
+ .
417
+ Tekur
418
+ et
419
+ al.
420
+ Introduction
421
+ Back
422
+ pain
423
+ is
424
+ a common
425
+ problem
426
+ affecting
427
+ around
428
+ 1 in
429
+ 5 adults
430
+ during
431
+ their
432
+ lifetime
433
+ with
434
+ it’s
435
+ prevalence
436
+ rising
437
+ to
438
+ 40%
439
+ when
440
+ asked
441
+ if they
442
+ have
443
+ experienced
444
+ symptoms
445
+ during
446
+ the
447
+ previ-
448
+ ous
449
+ month.1 Its
450
+ prevalence
451
+ is
452
+ well
453
+ studied:
454
+ worldwide,
455
+ 37%
456
+ of
457
+ CLBP
458
+ is
459
+ attributable
460
+ to
461
+ occupational
462
+ ergonomic
463
+ stressors,
464
+ both
465
+ physical
466
+ and
467
+ psychosocial.
468
+ In
469
+ South
470
+ East
471
+ Asia,
472
+ including
473
+ India
474
+ and
475
+ China,
476
+ the
477
+ figure
478
+ is
479
+ 39%.2
480
+ A
481
+ comparative
482
+ study3 surveyed
483
+ back
484
+ pain
485
+ in
486
+ 3 groups
487
+ of
488
+ manual
489
+ workers
490
+ (MW)
491
+ and
492
+ 3 groups
493
+ of
494
+ office
495
+ workers
496
+ (OW)
497
+ in
498
+ India
499
+ and
500
+ the
501
+ UK
502
+ totalling
503
+ 814
504
+ subjects.
505
+ They
506
+ found
507
+ MWs
508
+ in
509
+ India
510
+ to
511
+ have
512
+ least
513
+ prevalence
514
+ at
515
+ 15%.
516
+ In
517
+ the
518
+ UK,
519
+ they
520
+ found
521
+ 33%
522
+ for
523
+ MWs
524
+ of
525
+ Indian
526
+ origin,
527
+ and
528
+ 37%
529
+ for
530
+ white
531
+ MWs.
532
+ Similarly,
533
+ in
534
+ three
535
+ groups
536
+ of
537
+ OWs,
538
+ the
539
+ figures
540
+ were
541
+ 25%
542
+ in
543
+ India,
544
+ and
545
+ in
546
+ the
547
+ UK,
548
+ 24%
549
+ for
550
+ NRI’s,
551
+ and
552
+ 28%
553
+ for
554
+ whites.
555
+ In
556
+ India
557
+ itself,
558
+ Sharma
559
+ et
560
+ al.4 reported
561
+ a 23%
562
+ prevalence
563
+ of
564
+ CLBP
565
+ in
566
+ a north
567
+ India
568
+ outpatient
569
+ orthopaedic
570
+ unit.
571
+ Psychological
572
+ disturbances
573
+ may
574
+ cause
575
+ CLBP
576
+ ,
577
+ or
578
+ result
579
+ from
580
+ it:
581
+ they
582
+ have
583
+ predictive
584
+ value5—7 and
585
+ greater
586
+ impact
587
+ than
588
+ biomechanical
589
+ factors
590
+ 8.
591
+ Most
592
+ frequently
593
+ reported
594
+ disturbances
595
+ are
596
+ depression,9 anxiety,8 fear10 and
597
+ anger.11
598
+ Functional
599
+ disability
600
+ of
601
+ any
602
+ kind
603
+ has
604
+ a high
605
+ psychological
606
+ impact.
607
+ CLBP
608
+ is
609
+ strongly
610
+ correlated
611
+ with
612
+ state
613
+ anxiety.12
614
+ In
615
+ patients
616
+ with
617
+ lumbar
618
+ disc
619
+ herniation,
620
+ pain
621
+ and
622
+ func-
623
+ tional
624
+ disability
625
+ correlate
626
+ with
627
+ scores
628
+ on
629
+ both
630
+ anxiety
631
+ and
632
+ depression.13
633
+ Non
634
+ pharmacological
635
+ CAM
636
+ studies
637
+ are
638
+ being
639
+ tried
640
+ of
641
+ which
642
+ yoga
643
+ with
644
+ its
645
+ holistic
646
+ approach
647
+ has
648
+ emerged
649
+ as
650
+ an
651
+ important
652
+ modality
653
+ in
654
+ the
655
+ management
656
+ of
657
+ chronic
658
+ medi-
659
+ cal
660
+ conditions
661
+ recently.
662
+ Many
663
+ studies
664
+ of various
665
+ kinds
666
+ of
667
+ Yoga
668
+ therapy
669
+ have
670
+ shown
671
+ significant
672
+ benefits
673
+ to
674
+ CLBP
675
+ and
676
+ related
677
+ chronic
678
+ conditions
679
+ like
680
+ osteoarthritis,14 rheumatoid
681
+ arthritis,15 hypertension16 and
682
+ asthma.17 Also,
683
+ mindfulness
684
+ based
685
+ stress
686
+ reduction
687
+ (MBSR)
688
+ has
689
+ produced
690
+ increased
691
+ well-
692
+ being,
693
+ and
694
+ decreased
695
+ stress
696
+ and
697
+ pain-related
698
+ symptoms
699
+ in
700
+ patients
701
+ with
702
+ both
703
+ anxiety
704
+ and
705
+ chronic
706
+ pain.18
707
+ There
708
+ are
709
+ several
710
+ schools
711
+ of
712
+ yoga
713
+ that
714
+ use
715
+ different
716
+ com-
717
+ ponents
718
+ of
719
+ the
720
+ 8 limbs
721
+ of
722
+ yoga
723
+ as propounded
724
+ by
725
+ Sage
726
+ Patanjali.19 Amongst
727
+ different
728
+ studies
729
+ conducted
730
+ on
731
+ yoga
732
+ therapy
733
+ specifically
734
+ designed
735
+ for
736
+ CLBP
737
+ ,
738
+ two
739
+ RCTs
740
+ on
741
+ out-
742
+ patients
743
+ have
744
+ demonstrated
745
+ its
746
+ efficacy
747
+ in
748
+ reducing
749
+ pain,
750
+ analgesic
751
+ usage,
752
+ and
753
+ functional
754
+ disability:
755
+ Sherman
756
+ et
757
+ al.20
758
+ applied
759
+ 3 months
760
+ Vini
761
+ yoga,
762
+ and
763
+ Williams
764
+ et
765
+ al.21 4 months
766
+ Iyengar
767
+ Yoga.
768
+ Vini
769
+ yoga
770
+ has
771
+ used
772
+ asanas,
773
+ pranayama,
774
+ med-
775
+ itation,
776
+ and
777
+ lectures
778
+ on
779
+ yoga
780
+ philosophy.
781
+ Iyengar
782
+ yoga
783
+ has
784
+ used
785
+ all
786
+ the
787
+ above
788
+ components
789
+ with
790
+ greater
791
+ emphasis
792
+ on
793
+ the
794
+ physical
795
+ postures.
796
+ Short
797
+ term,
798
+ 9—10
799
+ day,
800
+ outpatient
801
+ programs
802
+ have
803
+ also
804
+ been
805
+ studied:
806
+ Bijlani
807
+ et
808
+ al.22 found
809
+ improvement
810
+ in
811
+ health
812
+ status,
813
+ while
814
+ Gupta
815
+ et
816
+ al.23 addi-
817
+ tionally
818
+ found
819
+ benefits
820
+ to
821
+ state/trait
822
+ anxiety.
823
+ The
824
+ fast
825
+ pace
826
+ of
827
+ contemporary
828
+ life
829
+ means
830
+ that
831
+ such
832
+ intensive,
833
+ short-term
834
+ programs
835
+ are
836
+ preferred:
837
+ patients
838
+ need
839
+ to
840
+ return
841
+ to
842
+ normalcy
843
+ quickly.
844
+ In
845
+ response,
846
+ SVYASA
847
+ used
848
+ its
849
+ 25
850
+ years
851
+ experience
852
+ of
853
+ ‘Inte-
854
+ grated
855
+ Approach
856
+ of
857
+ Yoga
858
+ Therapy’
859
+ (IAYT)
860
+ treating
861
+ similar
862
+ chronic
863
+ conditions
864
+ to
865
+ design
866
+ a special
867
+ back
868
+ pain
869
+ mod-
870
+ ule
871
+ for
872
+ CLBP
873
+ ,
874
+ including:
875
+ asanas
876
+ for
877
+ back
878
+ pain;
879
+ pranayama;
880
+ relaxation
881
+ techniques;
882
+ meditation;
883
+ Yogic
884
+ counselling
885
+ for
886
+ stress
887
+ management;
888
+ chanting;
889
+ and
890
+ lectures
891
+ on
892
+ yogic
893
+ lifestyle
894
+ and
895
+ philosophy,
896
+ for
897
+ application
898
+ in
899
+ week-long,
900
+ intensive
901
+ treatments
902
+ (Table
903
+ 1).
904
+ It was
905
+ developed
906
+ from
907
+ traditional
908
+ Table
909
+ 1a
910
+
911
+ Back
912
+ pain
913
+ special
914
+ techniques
915
+ for
916
+ yoga
917
+ group.
918
+ I.
919
+ Supine
920
+ postures
921
+ 1.
922
+ Pavanamuktasana
923
+ (Wind
924
+ releasing
925
+ pose)
926
+ series
927
+
928
+ Supta
929
+ Pawanamuktasana
930
+ (leg
931
+ lock
932
+ pose)
933
+
934
+ Jhulana
935
+ Lurkhanasana
936
+ (rocking
937
+ and
938
+ rolling)
939
+ 2.
940
+ Ardha
941
+ Navasana
942
+ (half
943
+ boat
944
+ pose)
945
+ 3.
946
+ Uttanapadasana
947
+ (straight
948
+ leg
949
+ raise
950
+ pose)
951
+ 4.
952
+ Sethubandhasana
953
+ breathing
954
+ (bridge
955
+ pose
956
+ lumbar
957
+ stretch)
958
+ 5.
959
+ Supta
960
+ Udarakarshanasana
961
+ (folded
962
+ leg
963
+ lumbar
964
+ stretch)
965
+ 6.
966
+ Shavaudarakarshanasana
967
+ (crossed
968
+ leg
969
+ lumbar
970
+ stretch)
971
+ II.
972
+ Prone
973
+ postures
974
+ 1.
975
+ Bhujangasana
976
+ (serpent
977
+ pose)
978
+ 2.
979
+ Shalabhasana
980
+ breathing
981
+ (locust
982
+ pose)
983
+ III.
984
+ Quick
985
+ relaxation
986
+ technique
987
+ in
988
+ Shavasana
989
+ (corpse
990
+ pose)
991
+ IV.
992
+ Sitting
993
+ postures
994
+ 1.
995
+ Vyaghra
996
+ Svasa
997
+ (tiger
998
+ breathing)
999
+ 2.
1000
+ Shashankasana
1001
+ breathing
1002
+ (moon
1003
+ pose)
1004
+ V.
1005
+ Standing
1006
+ postures
1007
+ 1.
1008
+ Ardha
1009
+ Chakrasana
1010
+ (half
1011
+ wheel
1012
+ pose)
1013
+ 2.
1014
+ Prasarita
1015
+ Pada
1016
+ Hastasana
1017
+ (forward
1018
+ bend
1019
+ with
1020
+ legs
1021
+ apart)
1022
+ 3.
1023
+ Ardha
1024
+ kati
1025
+ Chakrasana
1026
+ (lateral
1027
+ arc
1028
+ pose)
1029
+ VI.
1030
+ Deep
1031
+ relaxation
1032
+ technique,
1033
+ in
1034
+ Shavasana
1035
+ with
1036
+ folded
1037
+ legs.
1038
+ Table
1039
+ 1b
1040
+
1041
+ Control
1042
+ group
1043
+ practices.
1044
+ (1)
1045
+ Standing
1046
+ hamstring
1047
+ stretch
1048
+ (2)
1049
+ Cat
1050
+ and
1051
+ camel
1052
+ (3)
1053
+ Pelvic
1054
+ tilt
1055
+ (4)
1056
+ Partial
1057
+ curl
1058
+ (5)
1059
+ Piriformis
1060
+ stretch
1061
+ (6)
1062
+ Extension
1063
+ exercise
1064
+ (7)
1065
+ Quadriceps
1066
+ leg
1067
+ raising
1068
+ (8)
1069
+ Trunk
1070
+ rotation
1071
+ (9)
1072
+ Double
1073
+ knee
1074
+ to
1075
+ chest
1076
+ (10)
1077
+ Bridging
1078
+ (11)
1079
+ Hook
1080
+ lying
1081
+ march
1082
+ (12)
1083
+ Single
1084
+ knee
1085
+ to
1086
+ chest
1087
+ stretch
1088
+ (13)
1089
+ Lumbar
1090
+ rotation
1091
+ (14)
1092
+ Press
1093
+ up
1094
+ (15)
1095
+ Curl
1096
+ ups
1097
+ yoga
1098
+ literature
1099
+ (Patanjali
1100
+ Yogasutras,
1101
+ Upanishads,
1102
+ and
1103
+ Yoga
1104
+ Vasishtha).
1105
+ The
1106
+ module
1107
+ was
1108
+ evaluated
1109
+ in
1110
+ unpublished
1111
+ pilot
1112
+ studies,
1113
+ for
1114
+ severity
1115
+ of
1116
+ pain,
1117
+ functional
1118
+ disability,
1119
+ and
1120
+ spinal
1121
+ flexibility.
1122
+ The
1123
+ first
1124
+ full
1125
+ study
1126
+ demonstrated
1127
+ improvements
1128
+ on
1129
+ all
1130
+ 3 variables.24 This
1131
+ led
1132
+ to
1133
+ the
1134
+ present
1135
+ study,
1136
+ which
1137
+ includes
1138
+ associated
1139
+ changes
1140
+ in
1141
+ anxiety
1142
+ and
1143
+ depression,
1144
+ as
1145
+ the
1146
+ most
1147
+ important
1148
+ causative
1149
+ factors.
1150
+ We
1151
+ hypothesized
1152
+ that
1153
+ the
1154
+ yoga
1155
+ group
1156
+ would
1157
+ show
1158
+ greater
1159
+ reductions
1160
+ on
1161
+ all
1162
+ mea-
1163
+ sures
1164
+ than
1165
+ controls.
1166
+ Methods
1167
+ Sample
1168
+ size:
1169
+ a required
1170
+ n = 35
1171
+ was
1172
+ obtained
1173
+ by
1174
+ applying
1175
+ Cohen’s
1176
+ formula
1177
+ for
1178
+ an
1179
+ expected
1180
+ Effect
1181
+ Size
1182
+ (ES)
1183
+ of
1184
+ 0.89
1185
+ and
1186
+ an
1187
+ alpha
1188
+ of
1189
+ 0.05,
1190
+ powered
1191
+ at
1192
+ 0.95,
1193
+ using
1194
+ the
1195
+ G*Power
1196
+ A comprehensive
1197
+ yoga
1198
+ programs
1199
+
1200
+ 109
1201
+ program.25 The
1202
+ ES
1203
+ was
1204
+ calculated
1205
+ from
1206
+ the
1207
+ mean
1208
+ and
1209
+ SD
1210
+ of
1211
+ the
1212
+ pilot
1213
+ study
1214
+ on
1215
+ 120
1216
+ subjects.26 A study
1217
+ size
1218
+ of
1219
+ 80
1220
+ subjects
1221
+ was
1222
+ decided
1223
+ on,
1224
+ considerably
1225
+ more
1226
+ than
1227
+ the
1228
+ 35
1229
+ required.
1230
+ Subjects:
1231
+ comprised
1232
+ the
1233
+ first
1234
+ 80
1235
+ of
1236
+ 160
1237
+ CLBP
1238
+ patients
1239
+ admitted
1240
+ between
1241
+ April
1242
+ 2005
1243
+ and
1244
+ June
1245
+ 2006,
1246
+ who
1247
+ satisfied
1248
+ the
1249
+ selection
1250
+ criteria.
1251
+ Inclusion
1252
+ criteria: History
1253
+ of
1254
+ CLBP
1255
+ of
1256
+ more
1257
+ than
1258
+ 3 months;
1259
+ pain
1260
+ in
1261
+ lumbar
1262
+ spine
1263
+ with
1264
+ or
1265
+ without
1266
+ radiation
1267
+ to
1268
+ legs27; age,
1269
+ 18—60
1270
+ years.
1271
+ Exclusion
1272
+ criteria: Confirmed
1273
+ organic
1274
+ spinal
1275
+ pathology
1276
+ such
1277
+ as
1278
+ malignancy
1279
+ (primary
1280
+ or
1281
+ secondary),
1282
+ or
1283
+ chronic
1284
+ infec-
1285
+ tion
1286
+ such
1287
+ as
1288
+ Tuberculosis;
1289
+ severe
1290
+ obesity
1291
+ (BMI
1292
+ > 39.9)
1293
+ and
1294
+ critically
1295
+ ill.
1296
+ Medical
1297
+ assessment:
1298
+ was
1299
+ conducted
1300
+ by
1301
+ a rheumatol-
1302
+ ogist.
1303
+ Two
1304
+ experts
1305
+ (radiologist
1306
+ and
1307
+ orthopaedic
1308
+ surgeon)
1309
+ gave
1310
+ opinions
1311
+ on
1312
+ whether
1313
+ anteroposterior
1314
+ and
1315
+ lateral
1316
+ lumbar
1317
+ spine
1318
+ X-rays
1319
+ satisfied
1320
+ the
1321
+ selection
1322
+ criteria.
1323
+ A semi-
1324
+ structured
1325
+ interview
1326
+ was
1327
+ used
1328
+ to
1329
+ obtain
1330
+ demographic
1331
+ and
1332
+ vital
1333
+ clinical
1334
+ data,
1335
+ including
1336
+ personal,
1337
+ family
1338
+ and
1339
+ stress
1340
+ his-
1341
+ tory.
1342
+ Study
1343
+ approval:
1344
+ was
1345
+ obtained
1346
+ from
1347
+ SVYASA’s
1348
+ review
1349
+ board
1350
+ and
1351
+ ethical
1352
+ committee.
1353
+ Signed
1354
+ informed
1355
+ consent:
1356
+ It was
1357
+ obtained
1358
+ from
1359
+ all
1360
+ sub-
1361
+ jects.
1362
+ The
1363
+ consent
1364
+ form
1365
+ clearly
1366
+ stated
1367
+ that
1368
+ subjects
1369
+ would
1370
+ be
1371
+ randomly
1372
+ allocated
1373
+ to
1374
+ one
1375
+ of
1376
+ two
1377
+ active
1378
+ intervention
1379
+ groups.
1380
+ Study
1381
+ design: was
1382
+ a seven
1383
+ day
1384
+ randomized
1385
+ single
1386
+ blind
1387
+ active
1388
+ control
1389
+ trial
1390
+ comparing
1391
+ two
1392
+ interventions,
1393
+ yoga
1394
+ ther-
1395
+ apy
1396
+ and
1397
+ physical
1398
+ therapy,
1399
+ both
1400
+ designed
1401
+ for
1402
+ lower
1403
+ back
1404
+ pain.
1405
+ Randomization:
1406
+ used
1407
+ two
1408
+ sets
1409
+ of
1410
+ 40
1411
+ numbers
1412
+ spanning
1413
+ integers
1414
+ 1—80
1415
+ created
1416
+ by
1417
+ a random
1418
+ number
1419
+ table
1420
+ from
1421
+ www.randomizer.org. CLBP
1422
+ patients
1423
+ admitted
1424
+ week
1425
+ by
1426
+ week
1427
+ were
1428
+ sequentially
1429
+ assigned
1430
+ to
1431
+ each
1432
+ group.
1433
+ Numbered
1434
+ con-
1435
+ tainers
1436
+ were
1437
+ used
1438
+ to
1439
+ conceal
1440
+ the
1441
+ random
1442
+ allocation
1443
+ before
1444
+ implementation.
1445
+ Blinding
1446
+ and
1447
+ masking: the
1448
+ statistician
1449
+ who
1450
+ generated
1451
+ the
1452
+ randomization
1453
+ sequence,
1454
+ and
1455
+ subsequently
1456
+ analysed
1457
+ the
1458
+ data,
1459
+ the
1460
+ clinical
1461
+ psychologist
1462
+ who
1463
+ administered
1464
+ and
1465
+ scored
1466
+ psychological
1467
+ questionnaires,
1468
+ and
1469
+ the
1470
+ researcher
1471
+ who
1472
+ car-
1473
+ ried
1474
+ out
1475
+ allocation
1476
+ and
1477
+ assessments,
1478
+ were
1479
+ blind
1480
+ to
1481
+ subjects’
1482
+ intervention
1483
+ groups.
1484
+ Coded
1485
+ answer
1486
+ sheets
1487
+ were
1488
+ analysed
1489
+ only
1490
+ after
1491
+ the
1492
+ study’s
1493
+ completion.
1494
+ In
1495
+ intervention
1496
+ studies
1497
+ of
1498
+ this
1499
+ kind,
1500
+ subjects
1501
+ clearly
1502
+ identify
1503
+ their
1504
+ own
1505
+ treatment:
1506
+ double
1507
+ blinding
1508
+ is
1509
+ not
1510
+ possible.
1511
+ Setting:
1512
+ SVYASA’s
1513
+ Holistic
1514
+ Health
1515
+ Centre
1516
+ (Arogyadhama)
1517
+ is
1518
+ situated
1519
+ at
1520
+ Prashanti
1521
+ Kutiram
1522
+ in
1523
+ quiet
1524
+ countryside,
1525
+ 35
1526
+ km
1527
+ south
1528
+ of
1529
+ Bangalore,
1530
+ India.
1531
+ Yoga
1532
+ intervention
1533
+ (Table
1534
+ 1a)
1535
+ The
1536
+ IAYT
1537
+ back
1538
+ pain
1539
+ module
1540
+ described
1541
+ above
1542
+ is
1543
+ holistic
1544
+ at
1545
+ physical,
1546
+ mental,
1547
+ emotional
1548
+ and
1549
+ intellectual
1550
+ levels.28 Spe-
1551
+ cial
1552
+ asana
1553
+ techniques
1554
+ for
1555
+ back
1556
+ pain
1557
+ progress
1558
+ slowly
1559
+ over
1560
+ the
1561
+ intervention’s
1562
+ first
1563
+ three
1564
+ days
1565
+ from
1566
+ initial
1567
+ safe
1568
+ movements
1569
+ to
1570
+ full
1571
+ asanas
1572
+ aiming
1573
+ to:
1574
+ (a)
1575
+ relax
1576
+
1577
+ the
1578
+
1579
+ spinal
1580
+
1581
+ muscles,
1582
+
1583
+ achieved
1584
+
1585
+ through
1586
+
1587
+ safe
1588
+ stretches
1589
+ of
1590
+ para
1591
+ spinal
1592
+ muscles
1593
+ during
1594
+ folded
1595
+ leg
1596
+ and
1597
+ crossed
1598
+ leg
1599
+ lumbar
1600
+ stretch
1601
+ practices,
1602
+ followed
1603
+ by
1604
+ guided
1605
+ deep
1606
+ relaxation
1607
+ in
1608
+ supine
1609
+ position29;
1610
+ (b)
1611
+ provide
1612
+ a traction
1613
+ effect
1614
+ (pavanamuktasana);
1615
+ and
1616
+ (c)
1617
+ strengthen
1618
+ lumbar
1619
+ (sethubandhasana)
1620
+ and
1621
+ abdominal
1622
+ (ekapadasana)
1623
+ muscles.
1624
+ Subjects
1625
+ avoid
1626
+ acute
1627
+ forward
1628
+ or
1629
+ backward
1630
+ bends
1631
+ and
1632
+ jerky
1633
+ spinal
1634
+ movements.30
1635
+ IAYT’s
1636
+ CLBP
1637
+ Pranayama
1638
+ practices
1639
+ reduce
1640
+ breath
1641
+ fre-
1642
+ quency
1643
+ to
1644
+ master
1645
+ emotional
1646
+ surges,31 and
1647
+ increase
1648
+ deep
1649
+ internal
1650
+ awareness
1651
+ in
1652
+ preparation
1653
+ for
1654
+ meditation,
1655
+ antaranga
1656
+ yoga, its
1657
+ method
1658
+ of
1659
+ stress
1660
+ management.
1661
+ Lectures
1662
+ help
1663
+ sub-
1664
+ jects
1665
+ understand
1666
+ corrective
1667
+ yoga
1668
+ healing
1669
+ techniques.
1670
+ Physical
1671
+ exercise
1672
+ therapy
1673
+ intervention
1674
+ (Table
1675
+ 1b)
1676
+ An
1677
+ independent
1678
+ consultant
1679
+ physiatrist
1680
+ specializing
1681
+ in
1682
+ back
1683
+
1684
+ pain
1685
+
1686
+ developed
1687
+
1688
+ the
1689
+
1690
+ module’s
1691
+
1692
+ physical
1693
+
1694
+ therapy
1695
+ movements,
1696
+ non-yogic
1697
+ breathing
1698
+ exercises,
1699
+ and
1700
+ scientific
1701
+ lectures.
1702
+ The
1703
+ latter
1704
+ included:
1705
+ (a)
1706
+ causes
1707
+ of
1708
+ back
1709
+ pain,
1710
+ (b)
1711
+ stress
1712
+ and
1713
+ CLBP
1714
+ and
1715
+ (c)
1716
+ the
1717
+ benefits
1718
+ of
1719
+ physical
1720
+ exercises.
1721
+ Nature
1722
+ video
1723
+ programs
1724
+ to
1725
+ relax
1726
+ and
1727
+ engage
1728
+ subjects
1729
+ corre-
1730
+ sponded
1731
+ to
1732
+ yoga
1733
+ group
1734
+ chanting.
1735
+ Daily
1736
+ routines:
1737
+ were
1738
+ matched
1739
+ hour
1740
+ by
1741
+ hour
1742
+ (Table
1743
+ 2).
1744
+ The
1745
+ two
1746
+ groups
1747
+ received
1748
+ identical
1749
+ diets.
1750
+ Final
1751
+ interview:
1752
+ included
1753
+ qualitative
1754
+ impressions
1755
+ on
1756
+ global
1757
+ improvement,
1758
+ treatment
1759
+ satisfaction,
1760
+ and
1761
+ adverse
1762
+ events.
1763
+ Outcome
1764
+ variables:
1765
+ were
1766
+ recorded
1767
+ for
1768
+ each
1769
+ subject
1770
+ on
1771
+ the
1772
+ first
1773
+ and
1774
+ final
1775
+ days,
1776
+ at
1777
+ the
1778
+ same
1779
+ times.
1780
+ State
1781
+ — trait
1782
+ anxiety
1783
+ inventory
1784
+ (STAI) 32: has
1785
+ 2 forms,
1786
+ Y1/Y2,
1787
+ evaluating
1788
+ state
1789
+ anxiety,
1790
+ how
1791
+ subjects
1792
+ feel
1793
+ ‘at
1794
+ this
1795
+ moment’;
1796
+ and
1797
+ trait
1798
+ anxiety,
1799
+ how
1800
+ they
1801
+ feel
1802
+ ‘most
1803
+ of
1804
+ the
1805
+ time’
1806
+ respective.
1807
+ It
1808
+ has
1809
+ been
1810
+ extensively
1811
+ used
1812
+ in
1813
+ India.
1814
+ Beck’s
1815
+ depression
1816
+ inventory
1817
+ (BDI) 33: measures
1818
+ cognitive,
1819
+ affective
1820
+ and
1821
+ vegetative
1822
+ depression
1823
+ symptoms.
1824
+ Scores
1825
+ for
1826
+ each
1827
+ items
1828
+ are
1829
+ 0—3,
1830
+ total
1831
+ 0—63.
1832
+ Total
1833
+ scores
1834
+ signify:
1835
+ 0—9,
1836
+ no
1837
+ depression;
1838
+ 10—19,
1839
+ mild
1840
+ depression
1841
+ (21
1842
+ in
1843
+ CLBP
1844
+ patients33;
1845
+ 20—25,
1846
+ moderate
1847
+ depression;
1848
+ 26+,
1849
+ severe
1850
+ depression.
1851
+ Numerical
1852
+ rating
1853
+ scale
1854
+ (NRS)
1855
+ for
1856
+ pain:
1857
+ a horizontal
1858
+ 10
1859
+ cm
1860
+ straight
1861
+ line
1862
+ on
1863
+ a
1864
+ white
1865
+ sheet
1866
+ from
1867
+ ‘0’
1868
+ (No
1869
+ pain)
1870
+ by
1871
+ cm
1872
+ up
1873
+ to
1874
+ ‘10’
1875
+ (Worst
1876
+ possible
1877
+ pain).
1878
+ Subjects
1879
+ indicate
1880
+ day’s
1881
+ pain
1882
+ intensity
1883
+ by
1884
+ a dot
1885
+ on
1886
+ the
1887
+ line.
1888
+ Sit
1889
+ and
1890
+ reach
1891
+ (SAR)34: measures
1892
+ hamstring
1893
+ and
1894
+ lower
1895
+ back
1896
+ flexibility.
1897
+ Subjects
1898
+ sit
1899
+ on
1900
+ floor
1901
+ with
1902
+ legs
1903
+ extended,
1904
+ feet
1905
+ resting
1906
+ against
1907
+ apparatus,
1908
+ bend
1909
+ maximum
1910
+ forward,
1911
+ fingers
1912
+ pushing
1913
+ the
1914
+ indicator
1915
+ without
1916
+ bending
1917
+ their
1918
+ elbows;
1919
+ distance
1920
+ measured
1921
+ in
1922
+ centimetres;
1923
+ correlation
1924
+ with
1925
+ hamstring
1926
+ flexi-
1927
+ bility
1928
+ r = 0.64.
1929
+ Statistical
1930
+ analysis:
1931
+ used
1932
+ SPSS
1933
+ 10.0:
1934
+ normal
1935
+ distribution
1936
+ of
1937
+ pre
1938
+ values
1939
+ checked
1940
+ using
1941
+ Shapiro—Wilk
1942
+ test.
1943
+ All
1944
+ between
1945
+ groups
1946
+ comparisons
1947
+ used
1948
+ post
1949
+ hoc
1950
+ analysis
1951
+ with
1952
+ Bon
1953
+ Ferroni
1954
+ correction.
1955
+ Results
1956
+ Fig.
1957
+ 1 shows
1958
+ the
1959
+ study
1960
+ profile.
1961
+ There
1962
+ were
1963
+ no
1964
+ drop
1965
+ outs.
1966
+ The
1967
+ two
1968
+ groups
1969
+ were
1970
+ similar
1971
+ with
1972
+ respect
1973
+ to
1974
+ socio-demographic
1975
+ and
1976
+ medical
1977
+ characteristics
1978
+ (Table
1979
+ 3).
1980
+ Baseline
1981
+ data
1982
+ for
1983
+ all
1984
+ variables
1985
+ matched
1986
+ between
1987
+ groups
1988
+ (p
1989
+ >
1990
+ 0.05).
1991
+ Baseline
1992
+ val-
1993
+ ues
1994
+ of
1995
+ SAR,
1996
+ BDI
1997
+ and
1998
+ NRS
1999
+ only
2000
+ had
2001
+ minor
2002
+ deviations
2003
+ from
2004
+ normality.
2005
+ Because
2006
+ the
2007
+ two
2008
+ groups
2009
+ had
2010
+ equal
2011
+ sample
2012
+ sizes35
2013
+ and
2014
+ the
2015
+ repeated
2016
+ measures
2017
+ ANOVA
2018
+ test
2019
+ is
2020
+ robust
2021
+ for
2022
+ small
2023
+ deviations
2024
+ from
2025
+ normality,
2026
+ it
2027
+ was
2028
+ used
2029
+ to
2030
+ analyse
2031
+ results
2032
+ on
2033
+ all
2034
+ variables:
2035
+ group
2036
+ × time
2037
+ interaction,
2038
+ within
2039
+ group
2040
+ pre-
2041
+ post
2042
+ comparisons,
2043
+ and
2044
+ between
2045
+ groups
2046
+ comparisons.
2047
+ Table
2048
+ 4
2049
+ shows
2050
+ results
2051
+ after
2052
+ the
2053
+ intervention.
2054
+ All
2055
+ patients
2056
+ reported
2057
+ improvements
2058
+ in
2059
+ sleep,
2060
+ sense
2061
+ of
2062
+ well
2063
+ being,
2064
+ and
2065
+ confidence
2066
+ 110
2067
+
2068
+ P
2069
+ .
2070
+ Tekur
2071
+ et
2072
+ al.
2073
+ Table
2074
+ 2
2075
+
2076
+ Time
2077
+ table
2078
+ for
2079
+ the
2080
+ two
2081
+ groups
2082
+ for
2083
+ the
2084
+ week
2085
+ long
2086
+ residential
2087
+ program.
2088
+ Daily
2089
+ schedule
2090
+ of
2091
+ practices
2092
+ for
2093
+ yoga
2094
+ and
2095
+ control
2096
+ group.
2097
+ S.
2098
+ no.
2099
+
2100
+ Time
2101
+
2102
+ Yoga
2103
+ group
2104
+
2105
+ Control
2106
+ Group
2107
+ 1
2108
+
2109
+ 05.00—05.30
2110
+ am
2111
+
2112
+ OM
2113
+ meditation
2114
+
2115
+ 30
2116
+ min
2117
+
2118
+ Walking
2119
+
2120
+ 30
2121
+ min
2122
+ 2
2123
+
2124
+ 05.30—06.30
2125
+ am
2126
+
2127
+ Yoga
2128
+ based
2129
+ special
2130
+ technique
2131
+
2132
+ 60
2133
+ min
2134
+
2135
+ Exercise
2136
+ based
2137
+ special
2138
+ technique
2139
+
2140
+ 60
2141
+ min
2142
+ 3
2143
+
2144
+ 06.30—07.30
2145
+ am
2146
+
2147
+ Bath
2148
+ &
2149
+ wash
2150
+
2151
+ Bath
2152
+ &
2153
+ wash
2154
+ 4
2155
+
2156
+ 07.30—08.15
2157
+ am
2158
+
2159
+ Chanting
2160
+ of
2161
+ yogic
2162
+ hymns
2163
+
2164
+ 45
2165
+ min
2166
+
2167
+ Video
2168
+ show
2169
+ (on
2170
+ nature)
2171
+
2172
+ 45
2173
+ min
2174
+ 5
2175
+ 08.15—08.45
2176
+ am
2177
+
2178
+ Breakfast
2179
+
2180
+ Breakfast
2181
+ 6
2182
+ 08.45—10.00
2183
+ am
2184
+
2185
+ Rest
2186
+
2187
+ Rest
2188
+ 7
2189
+ 10.00—11.00
2190
+ am
2191
+ Lecture
2192
+ (on
2193
+ yogic
2194
+ lifestyle)
2195
+ — 60
2196
+ min
2197
+
2198
+ Lecture
2199
+ (on
2200
+ healthy
2201
+ lifestyle)
2202
+
2203
+ 60
2204
+ min
2205
+ 8
2206
+ 11.00—12.00
2207
+ noon
2208
+ Pranayama
2209
+ (yogic
2210
+ breathing)
2211
+ — 60
2212
+ min
2213
+
2214
+ Non
2215
+ yogic
2216
+ breathing
2217
+ practice
2218
+ — 60
2219
+ min
2220
+ 9
2221
+ 12.00—01.00
2222
+ pm
2223
+ Yoga
2224
+ based
2225
+ special
2226
+ technique
2227
+ — 60
2228
+ min
2229
+
2230
+ Exercise
2231
+ based
2232
+ special
2233
+ technique
2234
+ — 60
2235
+ min
2236
+ 10
2237
+
2238
+ 01.00—02.00
2239
+ pm
2240
+
2241
+ Lunch(vegetarian
2242
+ diet)
2243
+
2244
+ Lunch
2245
+ (vegetarian
2246
+ diet)
2247
+ 11
2248
+
2249
+ 02.00—02.30
2250
+ pm
2251
+
2252
+ Deep
2253
+ relaxation
2254
+ technique
2255
+
2256
+ 30
2257
+ min
2258
+
2259
+ Rest
2260
+ at
2261
+ room
2262
+
2263
+ 30
2264
+ min
2265
+ 12
2266
+
2267
+ 02.30—04.00
2268
+ pm
2269
+
2270
+ Assessments
2271
+ and
2272
+ counselling
2273
+
2274
+ Assessments
2275
+ and
2276
+ counselling
2277
+ 13
2278
+
2279
+ 04.00—05.00
2280
+ pm
2281
+
2282
+ Cyclic
2283
+ meditation
2284
+
2285
+ 60
2286
+ min
2287
+
2288
+ Listening
2289
+ to
2290
+ music
2291
+ 14
2292
+
2293
+ 06.15—06.45
2294
+ pm
2295
+
2296
+ Divine
2297
+ hymns
2298
+ session
2299
+ (Bhajan)
2300
+
2301
+ 30
2302
+ min
2303
+
2304
+ Video
2305
+ show
2306
+ (on
2307
+ nature)
2308
+
2309
+ 30
2310
+ min
2311
+ 15
2312
+
2313
+ 06.45—07.45
2314
+ pm
2315
+
2316
+ Meditation
2317
+ with
2318
+ yogic
2319
+ chants
2320
+ (mind
2321
+ sound
2322
+ resonance
2323
+ technique)
2324
+
2325
+ 45
2326
+ min
2327
+ Walking
2328
+
2329
+ 45
2330
+ min
2331
+ 16
2332
+
2333
+ 07.45—08.30
2334
+ pm
2335
+
2336
+ Dinner
2337
+ (vegetarian
2338
+ diet)
2339
+
2340
+ Dinner
2341
+ (vegetarian
2342
+ diet)
2343
+ 17
2344
+
2345
+ 08.30—10.00
2346
+ pm
2347
+
2348
+ Self
2349
+ study
2350
+
2351
+ Self
2352
+ study
2353
+ Hour
2354
+ to
2355
+ hour
2356
+ matching
2357
+ for
2358
+ the
2359
+ type
2360
+ of
2361
+ practices
2362
+ for
2363
+ the
2364
+ two
2365
+ groups
2366
+ was
2367
+ ensured.
2368
+ Figure
2369
+ 1
2370
+
2371
+ Trial
2372
+ Profile.
2373
+ A comprehensive
2374
+ yoga
2375
+ programs
2376
+
2377
+ 111
2378
+ Table
2379
+ 3
2380
+
2381
+ Demographic
2382
+ data.
2383
+ Variables
2384
+
2385
+ YOGA
2386
+
2387
+ CONTROL
2388
+ Number
2389
+ of
2390
+ participants
2391
+
2392
+ 40
2393
+
2394
+ 40
2395
+ Males
2396
+ (M)
2397
+
2398
+ 19
2399
+
2400
+ 25
2401
+ Females
2402
+ (F)
2403
+
2404
+ 21
2405
+
2406
+ 15
2407
+ Age
2408
+ (mean
2409
+ ±
2410
+ SD)
2411
+
2412
+ 49
2413
+ ±
2414
+ 3.6
2415
+
2416
+ 48
2417
+ ±
2418
+ 4
2419
+ Education:
2420
+
2421
+ (a)
2422
+ High
2423
+ school
2424
+
2425
+ M-3,
2426
+ F-11
2427
+
2428
+ M-5,
2429
+ F-3.
2430
+ (b)
2431
+ College
2432
+ M-10,
2433
+ F-8
2434
+
2435
+ M-13,
2436
+ F-10
2437
+ (c)
2438
+ Post
2439
+ graduate
2440
+ M-6,
2441
+ F-2
2442
+ M-7,
2443
+ F-2
2444
+ Males
2445
+ Working-sedentary
2446
+ 14
2447
+ 16
2448
+ Working-non
2449
+ sedentary
2450
+ 5
2451
+ 8
2452
+ Females
2453
+ Working
2454
+ 6
2455
+ 7
2456
+ Housewives
2457
+
2458
+ 15
2459
+
2460
+ 8
2461
+ CLBP
2462
+
2463
+ <1
2464
+ year
2465
+
2466
+ 10
2467
+
2468
+ 11
2469
+ 1—5
2470
+ years
2471
+
2472
+ 9
2473
+
2474
+ 11
2475
+ 5—10
2476
+ years
2477
+
2478
+ 11
2479
+
2480
+ 10
2481
+ >10
2482
+ years
2483
+
2484
+ 10
2485
+
2486
+ 8
2487
+ Cause
2488
+
2489
+ Lumbar
2490
+ spondylosis(LS)
2491
+
2492
+ 6
2493
+
2494
+ 5
2495
+ Prolapsed
2496
+ intervertebral
2497
+ Disc(PID)
2498
+
2499
+ 6
2500
+
2501
+ 7
2502
+ LS
2503
+ with
2504
+ PID
2505
+
2506
+ 19
2507
+
2508
+ 15
2509
+ Muscle
2510
+ spasm
2511
+
2512
+ 9
2513
+
2514
+ 13
2515
+ after
2516
+ the
2517
+ program.
2518
+ Neither
2519
+ group
2520
+ reported
2521
+ adverse
2522
+ side
2523
+ effects.
2524
+ STAI:
2525
+ State
2526
+ anxiety
2527
+ scores:
2528
+ Group
2529
+ ×
2530
+ time
2531
+ interactions
2532
+ were
2533
+ significant
2534
+ (Table
2535
+ 4)
2536
+ [F(1,78)
2537
+ = 12.96,
2538
+ p <
2539
+ 0.001],
2540
+ as
2541
+ was
2542
+ difference
2543
+ between
2544
+ groups
2545
+ (p
2546
+ < 0.001).
2547
+ Yoga
2548
+ group
2549
+ scores
2550
+ decreased
2551
+ 20.4%
2552
+ (p
2553
+ < 0.001,
2554
+ ES
2555
+ = 0.72).
2556
+ The
2557
+ control
2558
+ group
2559
+ showed
2560
+ no
2561
+ significant
2562
+ change.
2563
+ Trait
2564
+ anxiety
2565
+ scores:
2566
+ Again,
2567
+ group
2568
+ × time
2569
+ interactions
2570
+ were
2571
+ significant
2572
+ [F(1,78)
2573
+ = 14.90,
2574
+ p < 0.001]
2575
+ with
2576
+ significant
2577
+ difference
2578
+ between
2579
+ groups
2580
+ (p
2581
+ < 0.001).
2582
+ Yoga
2583
+ group
2584
+ scores
2585
+ reduced
2586
+ 16%
2587
+ (p
2588
+ =
2589
+ 0.001,
2590
+ ES
2591
+ =
2592
+ 1.09).
2593
+ BDI:
2594
+ In
2595
+ both
2596
+ groups,
2597
+ BDI
2598
+ baseline
2599
+ scores
2600
+ were
2601
+ less
2602
+ than
2603
+ 21
2604
+ (the
2605
+ cut
2606
+ off
2607
+ for
2608
+ moderate
2609
+ depression
2610
+ in
2611
+ CLBP
2612
+ patients.33
2613
+ Group
2614
+ × time
2615
+ interaction
2616
+ was
2617
+ significant
2618
+ [F(1,78)
2619
+ =
2620
+ 5.85,
2621
+ p
2622
+ = 0.018],
2623
+
2624
+ with
2625
+
2626
+ significant
2627
+
2628
+ difference
2629
+
2630
+ between
2631
+
2632
+ groups
2633
+ (p
2634
+ <
2635
+ 0.001).
2636
+ Yoga
2637
+ group
2638
+ scores
2639
+ reduced
2640
+ 47%
2641
+ (p
2642
+ = 0.001,
2643
+ ES
2644
+ = 0.96).
2645
+ Controls
2646
+ reduced
2647
+ 19.9%
2648
+ (p
2649
+ < 0.001,
2650
+ ES
2651
+ = 0.59).
2652
+ NRS:
2653
+
2654
+ Group
2655
+ × time
2656
+
2657
+ interaction
2658
+
2659
+ was
2660
+
2661
+ significant
2662
+ [F(1,78)
2663
+ =
2664
+ 20.52,
2665
+
2666
+ p = 0.001].
2667
+
2668
+ Between
2669
+
2670
+ groups
2671
+
2672
+ difference
2673
+ was
2674
+ significant
2675
+ (p
2676
+ < 0.001).
2677
+ Yoga
2678
+ group
2679
+ NRS
2680
+ score
2681
+ decreased
2682
+ 49%
2683
+
2684
+ (p
2685
+ < 0.001,
2686
+
2687
+ ES
2688
+ =
2689
+ 1.62).
2690
+
2691
+ Controls
2692
+
2693
+ decreased
2694
+
2695
+ 17.5%
2696
+ (p
2697
+ =
2698
+ 0.005,
2699
+ ES
2700
+ =
2701
+ 0.67).
2702
+ SAR:
2703
+
2704
+ Group
2705
+ ×
2706
+ time
2707
+
2708
+ interaction
2709
+
2710
+ was
2711
+
2712
+ significant
2713
+ [F(1,78)
2714
+ =
2715
+ 4.16,
2716
+ p =
2717
+ 0.045].
2718
+ Yoga
2719
+ group
2720
+ SAR
2721
+ scores
2722
+ increased
2723
+ 49.5%
2724
+ (p
2725
+ <
2726
+ 0.001,
2727
+ ES
2728
+ 2.99),
2729
+ controls
2730
+ 34.6%
2731
+ (p
2732
+ < 0.001,
2733
+ ES
2734
+ 0.81),
2735
+ difference
2736
+ between
2737
+ groups
2738
+ not
2739
+ significant.
2740
+ Discussion
2741
+ This
2742
+ study
2743
+ has
2744
+ shown
2745
+ better
2746
+ improvement
2747
+ in STAI,
2748
+ BDI,
2749
+ NRS
2750
+ and
2751
+ SAR
2752
+ with
2753
+ significant
2754
+ group
2755
+ × time
2756
+ interactions
2757
+ in
2758
+ the
2759
+ Yoga
2760
+ group
2761
+ than
2762
+ the
2763
+ control
2764
+ group.
2765
+ Within
2766
+ groups
2767
+ improve-
2768
+ ments
2769
+ were
2770
+ significant
2771
+ on
2772
+ all
2773
+ variables
2774
+ in
2775
+ both
2776
+ groups,
2777
+ except
2778
+ STAI
2779
+ in
2780
+ controls.
2781
+ Strengths
2782
+ of the
2783
+ study
2784
+ (i)
2785
+ Its
2786
+ crossover
2787
+ RCT
2788
+ design
2789
+ in
2790
+ an
2791
+ residential
2792
+ setting
2793
+ with
2794
+ active
2795
+ control
2796
+ intervention,
2797
+ consisting
2798
+ of
2799
+ standard
2800
+ physical
2801
+ therapy
2802
+ and
2803
+ other
2804
+ practices
2805
+ matched
2806
+ hour
2807
+ by
2808
+ hour
2809
+ with
2810
+ the
2811
+ yoga
2812
+ intervention,
2813
+ (ii)
2814
+ Acceptability
2815
+ of
2816
+ short-term,
2817
+ intensive
2818
+ residential
2819
+ pro-
2820
+ grams
2821
+ in
2822
+ today’s
2823
+ fast
2824
+ pace
2825
+ of
2826
+ life.
2827
+ (iii)
2828
+ The
2829
+ number
2830
+ of
2831
+ subjects
2832
+ (80)
2833
+ yielded
2834
+ good
2835
+ p values
2836
+ and
2837
+ statistical
2838
+ power.
2839
+ Its
2840
+ weakness
2841
+ is
2842
+ that,
2843
+ despite
2844
+ special
2845
+ care
2846
+ being
2847
+ taken
2848
+ to
2849
+ keep
2850
+ the
2851
+ two
2852
+ groups
2853
+ engaged
2854
+ independently,
2855
+ the
2856
+ possibility
2857
+ of
2858
+ interactions
2859
+ between
2860
+ them
2861
+ cannot
2862
+ be
2863
+ discounted.
2864
+ Strength
2865
+ and
2866
+ weaknesses
2867
+ in
2868
+ relation
2869
+ to
2870
+ other
2871
+ studies
2872
+ Two
2873
+ earlier
2874
+ RCTs
2875
+ of
2876
+ yoga
2877
+ for
2878
+ back
2879
+ pain,20,21 also
2880
+ found
2881
+ both
2882
+ pain
2883
+ reduction
2884
+ and
2885
+ increased
2886
+ spinal
2887
+ mobility.
2888
+ No
2889
+ pre-
2890
+ vious
2891
+ yoga
2892
+ study
2893
+ has
2894
+ observed
2895
+ significant
2896
+ improvements
2897
+ on
2898
+ CLBP’s
2899
+ psychological
2900
+ components,36 A
2901
+ review
2902
+ by
2903
+ Chou37 of
2904
+ 17
2905
+ nonpharmacologic
2906
+ therapies
2907
+ for
2908
+ low
2909
+ back
2910
+ pain
2911
+ found
2912
+ that
2913
+ psychological
2914
+ interventions
2915
+ (cognitive-behavioral
2916
+ ther-
2917
+ apy
2918
+ and
2919
+ progressive
2920
+ relax
2921
+ ation),
2922
+ exercise,
2923
+ interdisciplinary
2924
+ rehabilitation,
2925
+ functional
2926
+ restoration,
2927
+ and
2928
+ spinal
2929
+ manip-
2930
+ ulation
2931
+ were
2932
+ effective
2933
+ for
2934
+ CLBP
2935
+ .
2936
+ The
2937
+ exercise
2938
+ therapy,
2939
+ was
2940
+ associated
2941
+ with
2942
+ small
2943
+ to
2944
+ moderate
2945
+ effects
2946
+ on
2947
+ pain;
2948
+ acupuncture
2949
+ was
2950
+ more
2951
+ effective
2952
+ than
2953
+ sham
2954
+ acupuncture;
2955
+ massage
2956
+ was
2957
+ similar
2958
+ to
2959
+ other
2960
+ noninvasive
2961
+ interventions
2962
+ and
2963
+ Viniyoga
2964
+ was
2965
+ slightly
2966
+ superior
2967
+ to
2968
+ traditional
2969
+ exercises.
2970
+ Seri-
2971
+ ous
2972
+ adverse
2973
+ events
2974
+ for
2975
+ all
2976
+ of
2977
+ the
2978
+ noninvasive
2979
+ therapies
2980
+ were
2981
+ rare.
2982
+ Some
2983
+ studies
2984
+ of
2985
+ non-yoga
2986
+ interventions
2987
+ (CBT
2988
+ ,
2989
+ phar-
2990
+ macotherapy,
2991
+ aerobics,
2992
+ physical
2993
+ therapies)
2994
+ have
2995
+ observed
2996
+ improvements
2997
+ in
2998
+ CLBP
2999
+ pain
3000
+ and
3001
+ disability
3002
+ accompanied
3003
+ by
3004
+ reduction
3005
+ in
3006
+ anxiety
3007
+ and
3008
+ depression.38 Reductions
3009
+ in
3010
+ both
3011
+ STAI
3012
+ and
3013
+ depression
3014
+ scores
3015
+ after
3016
+ short
3017
+ intensive
3018
+ residential
3019
+ 112
3020
+
3021
+ P
3022
+ .
3023
+ Tekur
3024
+ et
3025
+ al.
3026
+ Table
3027
+ 4
3028
+
3029
+ Results
3030
+ of
3031
+ all
3032
+ variables
3033
+ post
3034
+ intervention
3035
+ (RMANOVA)
3036
+ 1st
3037
+ day
3038
+ to
3039
+ 7th
3040
+ day.
3041
+ Within
3042
+ groups
3043
+
3044
+ Between
3045
+ groups
3046
+ Variable
3047
+
3048
+ Yoga
3049
+
3050
+ Control
3051
+
3052
+ ES
3053
+
3054
+ p
3055
+ Value
3056
+ Mean
3057
+ ±
3058
+ SD
3059
+
3060
+ 95%
3061
+ CI
3062
+ LB
3063
+ UB
3064
+
3065
+ ES
3066
+
3067
+ %
3068
+
3069
+ p
3070
+ Values
3071
+
3072
+ Mean
3073
+ ±
3074
+ SD
3075
+
3076
+ 95%
3077
+ CI
3078
+ LB
3079
+ UB
3080
+
3081
+ ES
3082
+
3083
+ %
3084
+
3085
+ p
3086
+ Values
3087
+ State
3088
+ anxiety
3089
+ Pre
3090
+ 42.02
3091
+ ±
3092
+ 9.80
3093
+
3094
+ 38.89
3095
+ 0.72
3096
+
3097
+ 20.44
3098
+
3099
+ <0.001
3100
+ 44.20
3101
+ ±
3102
+ 8.83
3103
+
3104
+ 41.38
3105
+ 0.07
3106
+ 1.17
3107
+ NS
3108
+ 1.14
3109
+ <0.001
3110
+ 45.16
3111
+
3112
+ 47.02
3113
+ Post 33.43
3114
+ ±
3115
+ 8.08
3116
+
3117
+ 30.84
3118
+
3119
+ 43.68
3120
+ ±
3121
+ 9.89
3122
+
3123
+ 40.51
3124
+ 36.01
3125
+
3126
+ 46.84
3127
+ Trait
3128
+ anxiety
3129
+ Pre
3130
+ 43.18
3131
+ ±
3132
+ 8.48
3133
+
3134
+ 40.46
3135
+ 1.09
3136
+ 15.88
3137
+
3138
+ <0.001
3139
+ 44.25
3140
+ ±
3141
+ 8.25
3142
+
3143
+ 41.61
3144
+ 0.15
3145
+
3146
+ 2.25
3147
+ NS
3148
+
3149
+ 0.94
3150
+ <0.001
3151
+ 45.89
3152
+
3153
+ 46.89
3154
+ Post 36.32
3155
+ ±
3156
+ 7.15
3157
+
3158
+ 34.05
3159
+
3160
+ 43.25
3161
+ ±
3162
+ 7.57
3163
+
3164
+ 40.83
3165
+ 38.60
3166
+
3167
+ 45.67
3168
+ BDI
3169
+
3170
+ Pre
3171
+ 12.13
3172
+ ±
3173
+ 8.82
3174
+
3175
+ 9.30
3176
+ 0.96
3177
+
3178
+ 46.99
3179
+ <0.001
3180
+ 13.05
3181
+ ±
3182
+ 6.53
3183
+
3184
+ 10.96
3185
+ 0.48
3186
+ 19.92 <0.001
3187
+ 0.59
3188
+ 0.001
3189
+ 14.95
3190
+
3191
+ 15.14
3192
+ Post
3193
+ 6.43
3194
+ ±
3195
+ 7.73
3196
+
3197
+ 3.95
3198
+
3199
+ 10.45
3200
+ ±
3201
+ 5.55
3202
+
3203
+ 8.68
3204
+ 8.90
3205
+
3206
+ 12.22
3207
+ VAS
3208
+
3209
+ Pre
3210
+ 6.68
3211
+ ±
3212
+ 1.82
3213
+
3214
+ 6.09
3215
+ 1.62
3216
+
3217
+ 49.10
3218
+ <0.001
3219
+ 5.88
3220
+ ±
3221
+ 2.15
3222
+
3223
+ 5.19
3224
+ 0.67
3225
+ 17.51 0.005
3226
+ 0.76
3227
+ <0.001
3228
+ 7.26
3229
+
3230
+ 6.56
3231
+ Post
3232
+ 3.40
3233
+ ±
3234
+ 1.88
3235
+
3236
+ 2.79
3237
+
3238
+ 4.85
3239
+ ±
3240
+ 1.96
3241
+
3242
+ 4.22
3243
+ 4.01
3244
+
3245
+ 5.48
3246
+ SAR
3247
+
3248
+ Pre
3249
+ 11.62
3250
+ ±
3251
+ 10.11
3252
+
3253
+ 8.39
3254
+ 1.189
3255
+
3256
+ 49.48
3257
+ <0.001
3258
+ 10.45
3259
+ ±
3260
+ 8.03
3261
+
3262
+ 7.88
3263
+ 13.02
3264
+ 11.25
3265
+ 16.9
3266
+ 0.81
3267
+ 34.69 <0.001
3268
+
3269
+ 0.34
3270
+ NS
3271
+ 14.86
3272
+ Post 17.37
3273
+ ±
3274
+ 10.77
3275
+
3276
+ 13.93
3277
+
3278
+ 10.07
3279
+ ±
3280
+ 8.84
3281
+ 20.82
3282
+ BDI
3283
+
3284
+ beck
3285
+ depression
3286
+ inventory,
3287
+ VAS
3288
+
3289
+ visual
3290
+ analogue
3291
+ scale
3292
+ for
3293
+ pain,
3294
+ SAR
3295
+
3296
+ sit
3297
+ and
3298
+ reach,
3299
+ CI
3300
+
3301
+ confidence
3302
+ interval,
3303
+ LB
3304
+
3305
+ lower
3306
+ bound,
3307
+ UB
3308
+
3309
+ upper
3310
+ bound,
3311
+ ES
3312
+
3313
+ effect
3314
+ size,
3315
+ %
3316
+
3317
+ percentage.
3318
+ Change,
3319
+ NS
3320
+
3321
+ non
3322
+ significant.
3323
+ A comprehensive
3324
+ yoga
3325
+ programs
3326
+
3327
+ 113
3328
+ yoga
3329
+ programs
3330
+ are
3331
+ unique
3332
+ to
3333
+ this
3334
+ study,
3335
+ probably
3336
+ a result
3337
+ of
3338
+ the
3339
+ IAYT
3340
+ module’s
3341
+ stress-management
3342
+ components.
3343
+ In
3344
+ 2
3345
+ of
3346
+ our
3347
+ earlier
3348
+ publications
3349
+ we
3350
+ have
3351
+ shown
3352
+ significantly
3353
+ bet-
3354
+ ter
3355
+ improvement
3356
+ in
3357
+ spinal
3358
+ flexibility
3359
+ — functional
3360
+ disability
3361
+ (Oswestry
3362
+ disability
3363
+ index)
3364
+ scores
3365
+ and
3366
+ quality
3367
+ of
3368
+ life
3369
+ (WHO
3370
+ QOL)
3371
+ in
3372
+ the
3373
+ yoga
3374
+ group
3375
+ compared
3376
+ to
3377
+ exercise
3378
+ group.39,40 A
3379
+ study
3380
+ compared
3381
+ graded
3382
+ exercise
3383
+ therapy
3384
+ with
3385
+ graded
3386
+ behav-
3387
+ ioral
3388
+ exposure
3389
+ program
3390
+ for
3391
+ CLBP
3392
+ (a
3393
+ 7
3394
+ h day
3395
+ rehabilitation-9
3396
+ am—4
3397
+ pm,
3398
+ 5
3399
+ days
3400
+ a week
3401
+ for
3402
+ 3—5
3403
+ weeks)
3404
+ comparable
3405
+ to
3406
+ our
3407
+ study
3408
+ (8
3409
+ h per
3410
+ day
3411
+ for
3412
+ 1 week).
3413
+ They
3414
+ observed
3415
+ 33.3%
3416
+ and
3417
+ 43.5%
3418
+ reduction
3419
+ in
3420
+ pain
3421
+ intensity
3422
+ in
3423
+ exercise
3424
+ and
3425
+ behavioral
3426
+ therapy
3427
+ groups
3428
+ where
3429
+ as
3430
+ the
3431
+ changes
3432
+ were
3433
+ 17.5%
3434
+ and
3435
+ 49%
3436
+ in
3437
+ the
3438
+ exercise
3439
+ and
3440
+ IAYT
3441
+ intervention
3442
+ groups
3443
+ respectively
3444
+ in
3445
+ our
3446
+ study.
3447
+ Similarly
3448
+ the
3449
+ depression
3450
+ scores
3451
+ reduced
3452
+ by
3453
+ 72%
3454
+ (exercise)
3455
+ and
3456
+ 57.6%
3457
+ (behavioral
3458
+ therapy)41 as
3459
+ compared
3460
+ to
3461
+ 20%
3462
+ (exercise)
3463
+ and
3464
+ 47%
3465
+ (IAYT).
3466
+ A study
3467
+ of
3468
+ BDI42 observed
3469
+ correlations
3470
+ between
3471
+ somatic
3472
+ and
3473
+ physical
3474
+ function
3475
+ subscales
3476
+ with
3477
+ dysfunctional
3478
+ cogni-
3479
+ tions
3480
+ related
3481
+ to their
3482
+ CLBP
3483
+ ,
3484
+ reflecting
3485
+ how
3486
+ it
3487
+ was
3488
+ interfering
3489
+ with
3490
+ their
3491
+ daily
3492
+ life.
3493
+ Meaning
3494
+ of
3495
+ the
3496
+ study
3497
+ The
3498
+ detailed
3499
+ design
3500
+ of
3501
+ the
3502
+ Yoga
3503
+ module
3504
+ and
3505
+ its
3506
+ specific
3507
+ new
3508
+ features
3509
+ therefore
3510
+ merit
3511
+ consideration.
3512
+ There
3513
+ are
3514
+ different
3515
+ yoga
3516
+ therapy
3517
+ schools
3518
+ which
3519
+ incorporate
3520
+ various
3521
+ limbs
3522
+ of
3523
+ yoga
3524
+ like
3525
+ asanas,
3526
+ pranayama,
3527
+ meditation,
3528
+ lectures
3529
+ on
3530
+ yoga
3531
+ philos-
3532
+ ophy
3533
+ including
3534
+ codes
3535
+ of
3536
+ conduct.
3537
+ For
3538
+ eg,
3539
+ Iyengar
3540
+ yoga
3541
+ uses
3542
+ more
3543
+ of
3544
+ the
3545
+ physical
3546
+ practices
3547
+ combined
3548
+ with
3549
+ breathing.
3550
+ Vini
3551
+ yoga
3552
+ uses
3553
+ a smooth
3554
+ flow
3555
+ of
3556
+ postures
3557
+ followed
3558
+ by
3559
+ relax-
3560
+ ation
3561
+ and
3562
+ meditation.
3563
+ IAYT
3564
+ incorporates
3565
+ all
3566
+ the
3567
+ components
3568
+ to
3569
+ offer
3570
+ a holistic
3571
+ therapeutic
3572
+ module.
3573
+ A
3574
+ first
3575
+ observation
3576
+ is that
3577
+ simultaneous
3578
+ muscle
3579
+ strength-
3580
+ ening
3581
+ and
3582
+ relaxation
3583
+ may
3584
+ be
3585
+ involved.
3586
+ Careful
3587
+ body
3588
+ movement
3589
+ together
3590
+ with
3591
+ active
3592
+ mindfulness
3593
+ both
3594
+ strength-
3595
+ ens
3596
+ spinal
3597
+ and
3598
+ abdominal
3599
+ muscles,
3600
+ and
3601
+ promotes
3602
+ deeper
3603
+ relaxation.
3604
+ This
3605
+ may
3606
+ explain
3607
+ observed
3608
+ improvements
3609
+ in
3610
+ both
3611
+ spinal
3612
+ mobility
3613
+ and
3614
+ pain
3615
+ levels,
3616
+ agreeing
3617
+ with
3618
+ findings
3619
+ in
3620
+ previous
3621
+ studies
3622
+ of
3623
+ IAYT
3624
+ in
3625
+ healthy
3626
+ volunteers:
3627
+ improved
3628
+ stamina
3629
+ and
3630
+ strength,43 and
3631
+ decreased
3632
+ metabolism.44
3633
+ Observed
3634
+ stress
3635
+ reduction
3636
+ is
3637
+ consistent
3638
+ with
3639
+ previous
3640
+ studies,
3641
+ in
3642
+ which
3643
+ yoga
3644
+ was
3645
+ observed
3646
+ to
3647
+ correct
3648
+ disturbed
3649
+ moods
3650
+ in
3651
+ psychiatric
3652
+ patients
3653
+ with
3654
+ anxiety
3655
+ disorders45,46
3656
+ and
3657
+ major
3658
+ depressive
3659
+ illness,47 showing
3660
+ that
3661
+ it
3662
+ can
3663
+ bene-
3664
+ fit
3665
+ even
3666
+ pathological
3667
+ levels
3668
+ of
3669
+ stress.
3670
+ It
3671
+ suggests
3672
+ that
3673
+ yoga
3674
+ has
3675
+ the
3676
+ ability
3677
+ to
3678
+ reverse
3679
+ the
3680
+ interlinked
3681
+ downward
3682
+ spiral,
3683
+ whereby
3684
+ CLBP
3685
+ causes
3686
+ depression,
3687
+ which
3688
+ gives
3689
+ rise
3690
+ to
3691
+ fur-
3692
+ ther
3693
+ back
3694
+ pain,
3695
+ resulting
3696
+ in increased
3697
+ depression,
3698
+ and
3699
+ so
3700
+ on.
3701
+ This
3702
+ conclusion
3703
+ is
3704
+ corroborated
3705
+ by
3706
+ several
3707
+ studies,
3708
+ in
3709
+ which
3710
+ physical
3711
+ well-being,
3712
+ fatigue,
3713
+ stress
3714
+ (PSS)
3715
+ and
3716
+ anxiety
3717
+ (on
3718
+ STAI)
3719
+ after
3720
+ yoga
3721
+ practice29,48—50 have
3722
+ been
3723
+ observed.
3724
+ Telles
3725
+ et
3726
+ al.51 found
3727
+ reduced
3728
+ physiological
3729
+ arousal
3730
+ and
3731
+ improved
3732
+ autonomic
3733
+ stability.
3734
+ Together,
3735
+ these
3736
+ studies
3737
+ provide
3738
+ strong
3739
+ evidence
3740
+ for
3741
+ yoga’s
3742
+ stress
3743
+ reducing
3744
+ effects,
3745
+ indicating
3746
+ that
3747
+ it
3748
+ can
3749
+ neutralize
3750
+ CLBP’s
3751
+ psychological
3752
+ impact
3753
+ as
3754
+ well
3755
+ as
3756
+ its
3757
+ physical
3758
+ symptoms.
3759
+ Participants
3760
+ often
3761
+ report
3762
+ that
3763
+ Yoga
3764
+ courses
3765
+ give
3766
+ them
3767
+ ‘space’
3768
+ to recognize
3769
+ causes
3770
+ of
3771
+ suppressed
3772
+ negative
3773
+ emo-
3774
+ tions.
3775
+ Although,
3776
+ as
3777
+ yet,
3778
+ we
3779
+ have
3780
+ no
3781
+ hard
3782
+ data
3783
+ supporting
3784
+ this,
3785
+ medical
3786
+ records
3787
+ indicate
3788
+ that
3789
+ counselling
3790
+ helps
3791
+ IAYT
3792
+ residential
3793
+ learn
3794
+ to
3795
+ be
3796
+ more
3797
+ objective
3798
+ about
3799
+ previously
3800
+ dis-
3801
+ tressing
3802
+ situations.
3803
+ This
3804
+ seems
3805
+ closely
3806
+ allied
3807
+ to
3808
+ the
3809
+ CBT
3810
+ perspective,
3811
+ which
3812
+ sees
3813
+ chronic
3814
+ pain
3815
+ not
3816
+ simply
3817
+ as
3818
+ a
3819
+ neu-
3820
+ rophysiologic
3821
+ state,
3822
+ but
3823
+ one
3824
+ including
3825
+ sensory,
3826
+ affective,
3827
+ behavioral,
3828
+ and
3829
+ cognitive
3830
+ factors
3831
+ influencing
3832
+ the
3833
+ way
3834
+ the
3835
+ patient
3836
+ cognizes
3837
+ the
3838
+ world
3839
+ and
3840
+ assigns
3841
+ meaning
3842
+ to
3843
+ events.52
3844
+ Indeed,
3845
+ yoga
3846
+ texts
3847
+ highlight
3848
+ a major
3849
+ change
3850
+ in per-
3851
+ spective:
3852
+ ‘happiness
3853
+ is
3854
+ an
3855
+ inner
3856
+ state,
3857
+ not
3858
+ depending
3859
+ on
3860
+ external
3861
+ situations’.53 Since
3862
+ anxiety
3863
+ and
3864
+ depression
3865
+ are
3866
+ significant
3867
+ causes
3868
+ of
3869
+ CLBP
3870
+ ,
3871
+ The
3872
+ three
3873
+ meditations
3874
+ OM
3875
+ meditation,51 cyclic
3876
+ meditation,54,55 mind
3877
+ sound
3878
+ resonance
3879
+ technique56 and
3880
+ yogic
3881
+ counselling
3882
+ helped
3883
+ in
3884
+ stress
3885
+ manage-
3886
+ ment.
3887
+ Yogic
3888
+ counselling,
3889
+ and
3890
+ lectures
3891
+ similar
3892
+ to
3893
+ modern
3894
+ CBT
3895
+ .
3896
+ The
3897
+ ‘happiness
3898
+ analysis’
3899
+ derived
3900
+ from
3901
+ Upanishadic
3902
+ texts53
3903
+ to
3904
+ encourage
3905
+ participants
3906
+ to
3907
+ recognize
3908
+ sources
3909
+ of
3910
+ their
3911
+ emotional
3912
+ surges,
3913
+ restore
3914
+ freedom
3915
+ to
3916
+ remain
3917
+ unaffected,
3918
+ and
3919
+ change
3920
+ habituated
3921
+ patterns
3922
+ of
3923
+ response
3924
+ to
3925
+ chronic
3926
+ pain.
3927
+ This
3928
+ new
3929
+ perspective
3930
+ makes
3931
+ previously
3932
+ difficult
3933
+ situa-
3934
+ tions
3935
+ easier
3936
+ to
3937
+ handle.
3938
+ Its
3939
+ occurrence,
3940
+ in
3941
+ an
3942
+ Indian
3943
+ context,
3944
+ may
3945
+ explain
3946
+ some
3947
+ of
3948
+ the
3949
+ anxiety
3950
+ reduction.
3951
+ More
3952
+ generally,
3953
+ reduction
3954
+ in
3955
+ scores
3956
+ on
3957
+ anxiety
3958
+ and
3959
+ depression
3960
+ indicate
3961
+ that
3962
+ subjects
3963
+ were
3964
+ given
3965
+ a
3966
+ margin
3967
+ of
3968
+ safety
3969
+ from
3970
+ subsequently
3971
+ redeveloping
3972
+ pathological
3973
+ levels
3974
+ of
3975
+ these
3976
+ conditions,
3977
+ a point
3978
+ of
3979
+ significance,
3980
+ since
3981
+ Yoga
3982
+ medicine
3983
+ is
3984
+ as
3985
+ much
3986
+ preventive
3987
+ as
3988
+ curative.
3989
+ Next
3990
+ let
3991
+ us
3992
+ consider
3993
+ possible
3994
+ mechanisms
3995
+ for
3996
+ the
3997
+ observed
3998
+ degrees
3999
+ of
4000
+ pain
4001
+ reduction.
4002
+ Part
4003
+ may
4004
+ have
4005
+ been
4006
+ produced
4007
+ by
4008
+ neural
4009
+ impulses
4010
+ from
4011
+ stretch
4012
+ proprioceptors
4013
+ interfering
4014
+ with,
4015
+ and
4016
+ blocking,
4017
+ impulses
4018
+ on
4019
+ the
4020
+ ascend-
4021
+ ing
4022
+ pain
4023
+ pathway,
4024
+ as
4025
+ hypothesized
4026
+ in
4027
+ gate
4028
+ control
4029
+ theory.57
4030
+ A
4031
+ second
4032
+ level
4033
+ of
4034
+ explanation
4035
+ for
4036
+ Yoga’s
4037
+ efficacy
4038
+ in
4039
+ pain
4040
+ reduction
4041
+ may
4042
+ lie
4043
+ in
4044
+ endorphin
4045
+ production
4046
+ at
4047
+ a cortical
4048
+ level,
4049
+ which
4050
+ is
4051
+ known
4052
+ to
4053
+ result
4054
+ from
4055
+ alternate
4056
+ stretch-and-
4057
+ relax
4058
+ procedures
4059
+ of
4060
+ Yoga
4061
+ asana
4062
+ practice.58 Anxiety
4063
+ reduction
4064
+ requires
4065
+ special
4066
+ consideration.
4067
+ Consistency
4068
+ of
4069
+ observed
4070
+ reduction
4071
+ in
4072
+ state
4073
+ anxiety
4074
+ during
4075
+ yoga
4076
+ interventions45,46,48
4077
+ with
4078
+ non-significant
4079
+ changes
4080
+ during
4081
+ the
4082
+ physical
4083
+ exercise
4084
+ intervention,
4085
+ corroborates
4086
+ earlier
4087
+ studies
4088
+ on
4089
+ yoga
4090
+ in
4091
+ other
4092
+ chronic
4093
+ stress-related
4094
+ conditions.59 A
4095
+ previous
4096
+ short
4097
+ term
4098
+ out-patient
4099
+ yoga
4100
+ study
4101
+ (3—4
4102
+ h/day
4103
+ for
4104
+ 9
4105
+ days)
4106
+ observed23
4107
+ reductions
4108
+ in
4109
+ trait
4110
+ anxiety
4111
+ in
4112
+ patients
4113
+ with
4114
+ chronic
4115
+ disease.
4116
+ Thus,
4117
+ the
4118
+ present
4119
+ study’s
4120
+ improvement
4121
+ in
4122
+ trait
4123
+ anxiety
4124
+ (16%)
4125
+ by
4126
+ the
4127
+ Yoga
4128
+ group
4129
+ with
4130
+ significant
4131
+ group
4132
+ ×
4133
+ time
4134
+ interac-
4135
+ tion,
4136
+ and
4137
+ between
4138
+ groups
4139
+ differences,
4140
+ may
4141
+ be
4142
+ considered
4143
+ evidence
4144
+ for
4145
+ the
4146
+ power
4147
+ of
4148
+ yoga
4149
+ interventions
4150
+ to
4151
+ reduce
4152
+ deep-rooted
4153
+ stress.
4154
+ The
4155
+ transformation
4156
+ may
4157
+ be
4158
+ compared
4159
+ to
4160
+ well
4161
+ sub-
4162
+ stantiated
4163
+ changes
4164
+ in
4165
+ emotionality
4166
+ as
4167
+ a result
4168
+ of
4169
+ regular
4170
+ Trancendental
4171
+ Meditation
4172
+ practice,
4173
+ something
4174
+ in
4175
+ which
4176
+ EPI
4177
+ author
4178
+ HA
4179
+ Eysenck,
4180
+ himself
4181
+ took
4182
+ great
4183
+ interest
4184
+ when
4185
+ it
4186
+ was
4187
+ discovered.60 Both
4188
+ emotionality
4189
+ and
4190
+ trait
4191
+ anxiety
4192
+ are
4193
+ con-
4194
+ sidered
4195
+ long
4196
+ term,
4197
+ stable
4198
+ properties
4199
+ of
4200
+ the
4201
+ personality.
4202
+ In
4203
+ both
4204
+ the
4205
+ cases,
4206
+ deep,
4207
+ Yoga-oriented
4208
+ programs
4209
+ indicate
4210
+ that
4211
+ they
4212
+ may
4213
+ not
4214
+ be
4215
+ as
4216
+ permanent
4217
+ as
4218
+ originally
4219
+ supposed.
4220
+ The
4221
+ observed
4222
+ improvements
4223
+ apparently
4224
+ continued
4225
+ after
4226
+ the
4227
+ completion
4228
+ of
4229
+ the
4230
+ program:
4231
+ subjects
4232
+ were
4233
+ routinely
4234
+ asked
4235
+ to
4236
+ continue
4237
+ one
4238
+ hour
4239
+ daily
4240
+ yoga
4241
+ practice
4242
+ at
4243
+ home
4244
+ aided
4245
+ by
4246
+ a video.
4247
+ At
4248
+ the
4249
+ present
4250
+ time,
4251
+ over
4252
+ 3
4253
+ years
4254
+ after
4255
+ the
4256
+ study
4257
+ terminated,
4258
+ many
4259
+ of
4260
+ the
4261
+ previously
4262
+ most
4263
+ incapac-
4264
+ itated
4265
+ subjects
4266
+ i.e.
4267
+ those
4268
+ who
4269
+ had
4270
+ made
4271
+ the
4272
+ most
4273
+ progress,
4274
+ are
4275
+ still
4276
+ doing
4277
+ their
4278
+ home
4279
+ program,
4280
+ in
4281
+ contact
4282
+ with
4283
+ SVYASA,
4284
+ and
4285
+ expressing
4286
+ appreciation
4287
+ for
4288
+ having
4289
+ participated
4290
+ in
4291
+ the
4292
+ study.
4293
+ 114
4294
+
4295
+ P
4296
+ .
4297
+ Tekur
4298
+ et
4299
+ al.
4300
+ Possible
4301
+ mechanisms
4302
+ and
4303
+ implications
4304
+ for
4305
+ clinicians
4306
+ or
4307
+ policy
4308
+ makers.
4309
+ We
4310
+ recommend
4311
+ that
4312
+ this
4313
+ safe
4314
+ yoga
4315
+ therapy
4316
+ for
4317
+ backpain
4318
+ program
4319
+ may
4320
+ be
4321
+ included
4322
+ in conventional
4323
+ Low
4324
+ backpain
4325
+ management
4326
+ protocols
4327
+ 1.
4328
+ As
4329
+ it
4330
+ has
4331
+ been
4332
+ shown
4333
+ that
4334
+ it
4335
+ is
4336
+ better
4337
+ than
4338
+ physical
4339
+ ther-
4340
+ apy
4341
+ in
4342
+ alleviating
4343
+ pain,
4344
+ anxiety
4345
+ and
4346
+ depression
4347
+ 2.
4348
+ It is
4349
+ applicable
4350
+ in
4351
+ all
4352
+ age
4353
+ groups
4354
+ since
4355
+ our
4356
+ study
4357
+ included
4358
+ adolescents
4359
+ to
4360
+ the
4361
+ elderly
4362
+ (18—65
4363
+ years)
4364
+ and
4365
+ both
4366
+ gen-
4367
+ ders.
4368
+ 3. Cost
4369
+ effectiveness
4370
+ of
4371
+ this
4372
+ self
4373
+ corrective
4374
+ techniques
4375
+ which
4376
+ can
4377
+ be
4378
+ practiced
4379
+ at
4380
+ home
4381
+ once
4382
+ learnt
4383
+ is
4384
+ notewor-
4385
+ thy.
4386
+ Unanswered
4387
+ question
4388
+ With
4389
+ increasing
4390
+ popularity
4391
+ of
4392
+ yoga
4393
+ round
4394
+ the
4395
+ globe,
4396
+ gener-
4397
+ alisability
4398
+ of
4399
+ this
4400
+ module
4401
+ to
4402
+ different
4403
+ ethnic
4404
+ groups
4405
+ should
4406
+ be
4407
+ studied.
4408
+ Suggestions
4409
+ for
4410
+ future
4411
+ research
4412
+ (i)
4413
+ Long-term
4414
+ follow-up
4415
+ including
4416
+ measures
4417
+ of
4418
+ cognitive
4419
+ changes
4420
+ should
4421
+ be
4422
+ studied.
4423
+ (ii)
4424
+ EMG
4425
+ studies
4426
+ should
4427
+ be
4428
+ included.
4429
+ Short
4430
+ term,
4431
+ intensive
4432
+ residential
4433
+ Yoga
4434
+ programs
4435
+ for
4436
+ back
4437
+ pain,
4438
+ designed
4439
+ according
4440
+ to
4441
+ the
4442
+ Integrated
4443
+ Approach
4444
+ of
4445
+ Yoga
4446
+ Therapy
4447
+ (IAYT),
4448
+ significantly
4449
+ reduce
4450
+ scores
4451
+ on
4452
+ state
4453
+ and
4454
+ trait
4455
+ anxiety,
4456
+ and
4457
+ depression
4458
+ scales
4459
+ as
4460
+ well
4461
+ as
4462
+ reducing
4463
+ pain,
4464
+ and
4465
+ improving
4466
+ lower
4467
+ back
4468
+ and
4469
+ hamstring
4470
+ flexibility
4471
+ and
4472
+ QoL
4473
+ scores
4474
+ in
4475
+ CLBP
4476
+ patients.
4477
+ The
4478
+ Yoga
4479
+ intervention
4480
+ significantly
4481
+ outperformed
4482
+ the
4483
+ control
4484
+ intervention
4485
+ on
4486
+ all
4487
+ measures
4488
+ except
4489
+ SAR
4490
+ which
4491
+ did
4492
+ well
4493
+ in
4494
+ both
4495
+ groups.
4496
+ Conflict
4497
+ of
4498
+ interest
4499
+ statement
4500
+ None
4501
+ declared.
4502
+ Source
4503
+ of funding
4504
+ SVYASA
4505
+ (Institutional).
4506
+ Acknowledgements
4507
+ We
4508
+ acknowledge
4509
+ assistance
4510
+ from
4511
+ Ravi
4512
+ Kulkarni
4513
+ PhD
4514
+
4515
+ Bio
4516
+ Statistician
4517
+ and
4518
+ Balram
4519
+ Pradhan
4520
+ PhD
4521
+ in
4522
+ statistical
4523
+ analysis.
4524
+ We
4525
+ thank:
4526
+ Mrs.
4527
+ Ritu
4528
+ Mishra
4529
+ (clinical
4530
+ psychologist)
4531
+ and
4532
+ Dr
4533
+ Usha
4534
+ Rani
4535
+ for
4536
+ administering
4537
+ and
4538
+ scoring
4539
+ psychological
4540
+ question-
4541
+ naires;
4542
+ SVYASA
4543
+ for
4544
+ co-operation
4545
+ in
4546
+ conducting
4547
+ the
4548
+ program;
4549
+ and
4550
+ consultant
4551
+ orthopaedic
4552
+ surgeon
4553
+ Dr
4554
+ John
4555
+ Ebnezer,
4556
+ for
4557
+ opinions
4558
+ on
4559
+ X-ray
4560
+ images.
4561
+ We
4562
+ acknowledge
4563
+ the
4564
+ director
4565
+ of
4566
+ Jubilee
4567
+ Camdarc
4568
+ radiological
4569
+ institute
4570
+ for
4571
+ assistance
4572
+ with
4573
+ x-rays.
4574
+ Appendix
4575
+ A.
4576
+ Line
4577
+ diagrams
4578
+ of
4579
+ back
4580
+ pain
4581
+ special
4582
+ techniques
4583
+ for yoga
4584
+ group
4585
+ I.
4586
+ Supine
4587
+ postures
4588
+ 1.Pavanamuktasana
4589
+ (Wind
4590
+ releasing
4591
+ pose)
4592
+
4593
+ Supta
4594
+ Pawanamuktasana
4595
+ (leg
4596
+ lock
4597
+ pose)
4598
+
4599
+ Jhulana
4600
+ Lurkhanasana
4601
+ (rocking
4602
+ and
4603
+ rolling)
4604
+ 2.
4605
+ Ardha
4606
+ Navasana
4607
+ (half
4608
+ boat
4609
+ pose)
4610
+ 3.
4611
+ Uttanapadasana
4612
+ (straight
4613
+ leg
4614
+ raise
4615
+ pose)
4616
+ A comprehensive
4617
+ yoga
4618
+ programs
4619
+
4620
+ 115
4621
+ Appendix
4622
+ A (Continued
4623
+ )
4624
+ 4.
4625
+ Sethubandhasana
4626
+ breathing
4627
+ (bridge
4628
+ pose
4629
+ lumbar
4630
+ stretch)
4631
+ 5.
4632
+ Supta
4633
+ Udarakarshanasana
4634
+ (folded
4635
+ leg
4636
+ lumbar
4637
+ stretch)
4638
+ 6.
4639
+ Shavaudarakarshanasana
4640
+ (Crossed
4641
+ leg
4642
+ lumbar
4643
+ stretch)
4644
+ [10pt]
4645
+ II.
4646
+ Prone
4647
+ postures
4648
+ 1.
4649
+ Bhujangasana
4650
+ (serpent
4651
+ pose)
4652
+ 2.
4653
+ Shalabhasana
4654
+ breathing
4655
+ (locust
4656
+ pose)
4657
+ 3.
4658
+ Quick
4659
+ relaxation
4660
+ Technique
4661
+ in
4662
+ Shavasana
4663
+ (corpse
4664
+ pose)
4665
+ III.
4666
+ Sitting
4667
+ postures
4668
+ 116
4669
+
4670
+ P
4671
+ .
4672
+ Tekur
4673
+ et
4674
+ al.
4675
+ Appendix
4676
+ A (Continued
4677
+ )
4678
+ 1.
4679
+ Vyaghra
4680
+ Svasa
4681
+ (Tiger
4682
+ breathing)
4683
+ 2.
4684
+ Shashankasana
4685
+ breathing
4686
+ (moon
4687
+ pose)
4688
+ IV.
4689
+ Standing
4690
+ postures
4691
+ 1.
4692
+ Ardha
4693
+ Chakrasana
4694
+ (half
4695
+ wheel
4696
+ pose)
4697
+ 2.
4698
+ Prasarita
4699
+ Pada
4700
+ Hastasana
4701
+ (forward
4702
+ bend
4703
+ with
4704
+ legs
4705
+ apart)
4706
+ A comprehensive
4707
+ yoga
4708
+ programs
4709
+
4710
+ 117
4711
+ Appendix
4712
+ A (Continued
4713
+ )
4714
+ 3.
4715
+ Ardha
4716
+ kati
4717
+ Chakrasana
4718
+ (lateral
4719
+ arc
4720
+ pose)
4721
+ V.
4722
+ Deep
4723
+ relaxation
4724
+ technique,
4725
+ in
4726
+ Shavasana
4727
+ with
4728
+ folded
4729
+ legs
4730
+ References
4731
+ 1.
4732
+ Dunn
4733
+ KM.
4734
+ Epidemiology
4735
+ and
4736
+ natural
4737
+ history
4738
+ of
4739
+ low
4740
+ back
4741
+ pain.
4742
+ Eura
4743
+ Medicophys
4744
+ 2004
4745
+ Mar;40:9—13.
4746
+ 2.
4747
+ Punnett
4748
+ L,
4749
+ Prüss-Utün
4750
+ A,
4751
+ Nelson
4752
+ DI,
4753
+ Fingerhut
4754
+ MA,
4755
+ Leigh
4756
+ J,
4757
+ Tak
4758
+ S,
4759
+ et
4760
+ al.
4761
+ Estimating
4762
+ the
4763
+ global
4764
+ burden
4765
+ of
4766
+ low
4767
+ back
4768
+ pain
4769
+ attributable
4770
+ to
4771
+ combined
4772
+ occupational
4773
+ exposures.
4774
+ Am
4775
+ J
4776
+ Ind
4777
+ Med
4778
+ 2005;48:459—69.
4779
+ 3.
4780
+ Madan
4781
+ I,
4782
+ Reading
4783
+ I,
4784
+ Palmer
4785
+ KT
4786
+ ,
4787
+ Coggon
4788
+ D.
4789
+ Cultural
4790
+ differences
4791
+ in
4792
+ muskuloskeletal
4793
+ symptoms
4794
+ and
4795
+ differences.
4796
+ Int
4797
+ J
4798
+ Epidemiol
4799
+ 2008;37:1181—9.
4800
+ 4.
4801
+ Sharma
4802
+ SC,
4803
+ Singh
4804
+ R,
4805
+ Sharma
4806
+ AK,
4807
+ Mittal
4808
+ R.
4809
+ Incidence
4810
+ of
4811
+ low
4812
+ back
4813
+ pain
4814
+ in
4815
+ workage
4816
+ adults
4817
+ in
4818
+ rural
4819
+ north
4820
+ India.
4821
+ Indian
4822
+ J
4823
+ Med
4824
+ Sci
4825
+ 2003;57:145—7.
4826
+ 5.
4827
+ Kjellgren
4828
+ A,
4829
+ Bood
4830
+ SA,
4831
+ Axelsson
4832
+ K,
4833
+ Norlander
4834
+ T
4835
+ ,
4836
+ Saatcioglu
4837
+ F
4838
+ .
4839
+ Wellness
4840
+ through
4841
+ a
4842
+ comprehensive
4843
+ yogic
4844
+ breathing
4845
+ program
4846
+
4847
+ a
4848
+ controlled
4849
+ pilot
4850
+ trial.
4851
+ BMC
4852
+ Complement
4853
+ Altern
4854
+ Med
4855
+ 2007;19:43.
4856
+ 6.
4857
+ Miller
4858
+
4859
+ RJ,
4860
+
4861
+ Hafner
4862
+
4863
+ RJ.
4864
+
4865
+ Medical
4866
+
4867
+ visits
4868
+
4869
+ and
4870
+
4871
+ psychological
4872
+ disturbances
4873
+
4874
+ in
4875
+
4876
+ chronic
4877
+
4878
+ low
4879
+
4880
+ back
4881
+
4882
+ pain.
4883
+
4884
+ Psychosomatics
4885
+ 1993;32:299—316.
4886
+ 7.
4887
+ Turk
4888
+ DC.
4889
+ The
4890
+ role
4891
+ of
4892
+ psychological
4893
+ factors
4894
+ in
4895
+ chronic
4896
+ pain.
4897
+ Acta
4898
+ Anaesthesiol
4899
+ Scand
4900
+ 1999;43:885—8.
4901
+ 8.
4902
+ Linton
4903
+ SJ.
4904
+ A
4905
+ review
4906
+ of
4907
+ psychological
4908
+ risk
4909
+ factors
4910
+ in
4911
+ back
4912
+ and
4913
+ neck
4914
+ pain.
4915
+ Spine
4916
+ 2000;25:1148—56.
4917
+ 9.
4918
+ Meyer
4919
+ T
4920
+ ,
4921
+ Cooper
4922
+ J,
4923
+ Raspe
4924
+ H.
4925
+ Disabling
4926
+ low
4927
+ back
4928
+ pain
4929
+ and
4930
+ depres-
4931
+ sive
4932
+ symptoms
4933
+ in
4934
+ the
4935
+ community-dwelling
4936
+ elderly:
4937
+ a
4938
+ prospective
4939
+ study.
4940
+ Spine
4941
+ 2007;32:2380—6.
4942
+ 10. McCracken
4943
+ LM,
4944
+ Zayfert
4945
+ C,
4946
+ Gross
4947
+ RT
4948
+ .
4949
+ The
4950
+ pain
4951
+ anxiety
4952
+ symptoms
4953
+ scale:
4954
+ development
4955
+ and
4956
+ validation
4957
+ of
4958
+ a
4959
+ scale
4960
+ to
4961
+ measure
4962
+ fear
4963
+ of
4964
+ pain.
4965
+ Pain
4966
+ 1992;50:67—73.
4967
+ 11.
4968
+ Fernandez
4969
+ E,
4970
+ Turk
4971
+ DC.
4972
+ The
4973
+ scope
4974
+ and
4975
+ significance
4976
+ of
4977
+ anger
4978
+ in
4979
+ the
4980
+ experience
4981
+ of
4982
+ chronic
4983
+ pain.
4984
+ Pain
4985
+ 1995;61:165—75.
4986
+ 12.
4987
+ Kim
4988
+ TS,
4989
+ Pae
4990
+ CU,
4991
+ Hong
4992
+ CK,
4993
+ Kim
4994
+ JJ,
4995
+ Lee
4996
+ CU,
4997
+ Lee
4998
+ SJ,
4999
+ et
5000
+ al.
5001
+ Interre-
5002
+ lationships
5003
+ among
5004
+ pain,
5005
+ disability,
5006
+ and
5007
+ psychological
5008
+ factors
5009
+ in
5010
+ young
5011
+ Korean
5012
+ conscripts
5013
+ with
5014
+ lumbar
5015
+ disc
5016
+ herniation.
5017
+ Mil
5018
+ Med
5019
+ 2006;171:1113—6.
5020
+ 13.
5021
+ Fanian
5022
+ H,
5023
+ Ghassemi
5024
+ GR,
5025
+ Jourkar
5026
+ M,
5027
+ Mallik
5028
+ S,
5029
+ Mousavi
5030
+ MR.
5031
+ Psy-
5032
+ chological
5033
+ profile
5034
+ of
5035
+ Iranian
5036
+ patients
5037
+ with
5038
+ low-back
5039
+ pain.
5040
+ East
5041
+ Mediterr
5042
+ Health
5043
+ J
5044
+ 2007;13:335—46.
5045
+ 14.
5046
+ Garfinkel
5047
+
5048
+ MM,
5049
+
5050
+ Singhal
5051
+
5052
+ A,
5053
+
5054
+ Katz
5055
+
5056
+ WA,
5057
+ Allan
5058
+
5059
+ DA,
5060
+
5061
+ Reshetar
5062
+ R,
5063
+ Schumacher
5064
+ Jr
5065
+ HR.
5066
+ Yoga
5067
+ based
5068
+ intervention
5069
+ for
5070
+ carpel
5071
+ tunnel
5072
+
5073
+ syndrome:
5074
+
5075
+ a
5076
+
5077
+ randomized
5078
+
5079
+ trial.
5080
+
5081
+ J
5082
+
5083
+ Am
5084
+
5085
+ Med
5086
+
5087
+ Assoc
5088
+ 1998;280:1601—3.
5089
+ 15.
5090
+ Haslock
5091
+ I,
5092
+ Monro
5093
+ R,
5094
+ Nagarathna
5095
+ R,
5096
+ Nagendra
5097
+ HR,
5098
+ Raghuram
5099
+ NV.
5100
+ Measuring
5101
+ the
5102
+ effects
5103
+ of
5104
+ yoga
5105
+ in
5106
+ rheumatoid
5107
+ arthritis.
5108
+ Br
5109
+ J
5110
+ Rheumatol
5111
+ 1994;33:787—8.
5112
+ 16.
5113
+ Murugesan
5114
+ R,
5115
+ Govindarajulu
5116
+ N,
5117
+ Bera
5118
+ TK.
5119
+ Effect
5120
+ of
5121
+ selected
5122
+ yogic
5123
+ practices
5124
+ on
5125
+ the
5126
+ management
5127
+ of
5128
+ hypertension.
5129
+ Indian
5130
+ J
5131
+ Physiol
5132
+ Pharmacol
5133
+ 2000;44:207—10.
5134
+ 17.
5135
+ Nagarathna
5136
+ R,
5137
+ Nagendra
5138
+ HR.
5139
+ Yoga
5140
+ for
5141
+ bronchial
5142
+ asthma:
5143
+ a
5144
+ con-
5145
+ trolled
5146
+ study.
5147
+ Brit
5148
+ Med
5149
+ J
5150
+ (Clin
5151
+ Res
5152
+ Ed)
5153
+ 1985;291:1077—9.
5154
+ 18.
5155
+ Carmody
5156
+ JBRA.
5157
+ Relationships
5158
+ between
5159
+ mindfulness
5160
+ practice
5161
+ and
5162
+ levels
5163
+ of
5164
+ mindfulness,
5165
+ medical
5166
+ and
5167
+ psychological
5168
+ symptoms
5169
+ and
5170
+ well-being
5171
+ in
5172
+ a
5173
+ mindfulness-based
5174
+ stress
5175
+ reduction
5176
+ program.
5177
+ J
5178
+ Behav
5179
+ Med
5180
+ 2008;31:23—33.
5181
+ 19.
5182
+ Swami
5183
+ Prabhavananda.
5184
+ Patanjali
5185
+ yoga
5186
+ sutras.
5187
+ Chennai:
5188
+ Sri
5189
+ Ramakrishna
5190
+ Math;
5191
+ 2002.
5192
+ 20.
5193
+ Sherman
5194
+ KJ,
5195
+ Cherkin
5196
+ DC,
5197
+ Erro
5198
+ J,
5199
+ Miglioretti
5200
+ DL,
5201
+ Deyo
5202
+ RA.
5203
+ Com-
5204
+ paring
5205
+ yoga,
5206
+ exercise,
5207
+ and
5208
+ a
5209
+ self-care
5210
+ book
5211
+ for
5212
+ chronic
5213
+ low
5214
+ back
5215
+ pain:
5216
+ a
5217
+ randomized,
5218
+ controlled
5219
+ trial.
5220
+ Ann
5221
+ Intern
5222
+ Med
5223
+ 2005;143:849—56.
5224
+ 21.
5225
+ Williams
5226
+ KA,
5227
+ Petronis
5228
+ J,
5229
+ Smith
5230
+ D,
5231
+ Goodrich
5232
+ D,
5233
+ Wu
5234
+ J,
5235
+ Ravi
5236
+ N,
5237
+ et
5238
+ al.
5239
+ Effect
5240
+ of
5241
+ Iyengar
5242
+ yoga
5243
+ therapy
5244
+ for
5245
+ chronic
5246
+ low
5247
+ back
5248
+ pain.
5249
+ Pain
5250
+ 2005;115:107—17.
5251
+ 22.
5252
+ Bijlani
5253
+ RL,
5254
+ Vempati
5255
+ RP
5256
+ ,
5257
+ Yadav
5258
+ RK,
5259
+ Ray
5260
+ RB,
5261
+ Gupta
5262
+ V,
5263
+ Sharma
5264
+ R,
5265
+ et
5266
+ al.
5267
+ A
5268
+ brief
5269
+ but
5270
+ comprehensive
5271
+ lifestyle
5272
+ education
5273
+ pro-
5274
+ gram
5275
+ based
5276
+ on
5277
+ yoga
5278
+ reduces
5279
+ risk
5280
+ factors
5281
+ for
5282
+ cardiovascular
5283
+ disease
5284
+ and
5285
+ diabetes
5286
+ mellitus.
5287
+ J
5288
+ Altern
5289
+ Complement
5290
+ Med
5291
+ 2005;11:267—74.
5292
+ 23.
5293
+ Gupta
5294
+ N,
5295
+ Khera
5296
+ S,
5297
+ Vempati
5298
+ RP
5299
+ ,
5300
+ Sharma
5301
+ R,
5302
+ Bijlani
5303
+ RL.
5304
+ Effect
5305
+ of
5306
+ yoga
5307
+ based
5308
+ lifestyle
5309
+ intervention
5310
+ on
5311
+ state
5312
+ and
5313
+ trait
5314
+ anxiety.
5315
+ Indian
5316
+ J
5317
+ Physiol
5318
+ Pharmacol
5319
+ 2006;50:41—7.
5320
+ 24.
5321
+ Tekur
5322
+ P
5323
+ ,
5324
+ Chametcha
5325
+ S,
5326
+ Nagendra
5327
+ HR,
5328
+ Nagarathna
5329
+ R.
5330
+ Effect
5331
+ of
5332
+ short
5333
+ term
5334
+ intensive
5335
+ yoga
5336
+ program
5337
+ on
5338
+ pain,
5339
+ functional
5340
+ disability
5341
+ and
5342
+ spinal
5343
+ flexibility
5344
+ in
5345
+ chronic
5346
+ low
5347
+ back
5348
+ pain
5349
+
5350
+ a
5351
+ randomized
5352
+ control
5353
+ study.
5354
+ J
5355
+ Altern
5356
+ Complement
5357
+ Med
5358
+ 2008;14:637—44.
5359
+ 25. Faul
5360
+ F
5361
+ ,
5362
+ Erdfelder
5363
+ E,
5364
+ Lang
5365
+ A-G,
5366
+ Buchner
5367
+ A.
5368
+ G*Power
5369
+ 3:
5370
+ a
5371
+ flexible
5372
+ statistical
5373
+ power
5374
+ analysis
5375
+ program
5376
+ for
5377
+ the
5378
+ social,
5379
+ behavioral,
5380
+ 118
5381
+
5382
+ P
5383
+ .
5384
+ Tekur
5385
+ et
5386
+ al.
5387
+ and
5388
+ biomedical
5389
+ sciences.
5390
+ Behav
5391
+ Res
5392
+ Method
5393
+ 2007;39:175—91.
5394
+ Free
5395
+ G*Power
5396
+ 3
5397
+ software
5398
+ available
5399
+ at:
5400
+ http://franz-faul-uni-
5401
+ kiel-germany.software.informer.com.
5402
+ 26.
5403
+ Stress
5404
+ project
5405
+ report
5406
+ submitted
5407
+ to
5408
+ Central
5409
+ Council
5410
+ of
5411
+ Research
5412
+ in
5413
+ Yoga
5414
+ and
5415
+ Naturopathy.
5416
+ Ministry
5417
+ of
5418
+ Health
5419
+ and
5420
+ Family
5421
+ Welfare,
5422
+ Government
5423
+ of
5424
+ India.
5425
+ New
5426
+ Delhi-2000.
5427
+ 27.
5428
+ Spitzer
5429
+ WO,
5430
+ LeBlanc
5431
+ FE,
5432
+ Dupis
5433
+ M.
5434
+ Scientific
5435
+ approach
5436
+ to
5437
+ the
5438
+ assessment
5439
+ and
5440
+ management
5441
+ of
5442
+ activity
5443
+ related
5444
+ spinal
5445
+ disor-
5446
+ ders:
5447
+ a
5448
+ monograph
5449
+ for
5450
+ clinicians.
5451
+ Spine
5452
+ 1987;12:75.
5453
+ 28. Nagarathna
5454
+ R,
5455
+ Nagendra
5456
+ HR.
5457
+ Yoga
5458
+ for
5459
+ the
5460
+ promotion
5461
+ of
5462
+ positive
5463
+ health.
5464
+ Bengaluru:
5465
+ Swami
5466
+ Vivekananda
5467
+ Yoga
5468
+ Prakashana;
5469
+ 2000.
5470
+ 29. Vempati
5471
+ PM,
5472
+ Telles
5473
+ S.
5474
+ Yoga
5475
+ based
5476
+ isometric
5477
+ relaxation
5478
+ verses
5479
+ supine
5480
+ rest:
5481
+ a
5482
+ study
5483
+ of
5484
+ oxygen
5485
+ consumption,
5486
+ breath
5487
+ rate
5488
+ and
5489
+ volume
5490
+ and
5491
+ autonomic
5492
+ measures.
5493
+ J
5494
+ Indian
5495
+ Psychol
5496
+ 1999:17.
5497
+ 30.
5498
+ Nagarathna
5499
+ R,
5500
+ Nagendra
5501
+ HR.
5502
+ Yoga
5503
+ for
5504
+ back
5505
+ pain.
5506
+ Bengaluru:
5507
+ Swami
5508
+ Vivekananda
5509
+ Yoga
5510
+ Prakashana;
5511
+ 2001.
5512
+ 31.
5513
+ Nagendra
5514
+ HR,
5515
+ Pranayama.
5516
+ The
5517
+ art
5518
+ and
5519
+ science. Bengaluru:
5520
+ Swami
5521
+ Vivekananda
5522
+ Yoga
5523
+ Prakashana;
5524
+ 2000.
5525
+ 32.
5526
+ Spielberger
5527
+ CD,
5528
+ Gorsuch
5529
+ RL,
5530
+ Luskene
5531
+ RE.
5532
+ Test
5533
+ manual
5534
+ for
5535
+ state
5536
+ trait
5537
+ anxiety
5538
+ inventory.
5539
+ California:
5540
+ Consulting
5541
+ Psychol-
5542
+ ogist
5543
+ Press;
5544
+ 1970.
5545
+ 33.
5546
+ Geisser
5547
+ ME,
5548
+ Roth
5549
+ RS,
5550
+ Robinson
5551
+ ME.
5552
+ Assessing
5553
+ depression
5554
+ among
5555
+ persons
5556
+ with
5557
+ chronic
5558
+ pain
5559
+ using
5560
+ the
5561
+ center
5562
+ for
5563
+ epidemiological
5564
+ studies-depression
5565
+ scale
5566
+ and
5567
+ the
5568
+ beck
5569
+ depression
5570
+ inventory:
5571
+ a
5572
+ comparative
5573
+ analysis.
5574
+ Clin
5575
+ J
5576
+ Pain
5577
+ 1997;13:163—70.
5578
+ 34. Lemmink
5579
+ Koen
5580
+ APM,
5581
+ Kemper
5582
+ Han
5583
+ CG,
5584
+ de
5585
+ Greef
5586
+ Mathieu
5587
+ HG,
5588
+ Rispens
5589
+ P
5590
+ ,
5591
+ Stevens
5592
+ M.
5593
+ The
5594
+ validity
5595
+ of
5596
+ the
5597
+ sit-and-reach
5598
+ test
5599
+ and
5600
+ the
5601
+ modified
5602
+ sit-and-reach
5603
+ test
5604
+ in
5605
+ middle-aged
5606
+ to
5607
+ older
5608
+ men
5609
+ and
5610
+ women
5611
+ (measurement
5612
+ and
5613
+ evaluation).
5614
+ Res
5615
+ Q
5616
+ Exerc
5617
+ Sport
5618
+ 2003;74:331—6.
5619
+ 35.
5620
+ Glass
5621
+ GV,
5622
+ Hopkins
5623
+ KD.
5624
+ Statistical
5625
+ methods
5626
+ in
5627
+ education
5628
+ and
5629
+ psy-
5630
+ chology.
5631
+ 2nd
5632
+ Edition
5633
+ Allyn
5634
+ &
5635
+ Bacon;
5636
+ 1970.
5637
+ Section
5638
+ 16.18.
5639
+ 36.
5640
+ Galantino
5641
+ ML,
5642
+ Bzdewka
5643
+ TM,
5644
+ Eissler-Russo
5645
+ JL,
5646
+ Holbrook
5647
+ ML,
5648
+ Mogck
5649
+ EP
5650
+ ,
5651
+ Geigle
5652
+ P
5653
+ ,
5654
+ et
5655
+ al.
5656
+ The
5657
+ impact
5658
+ of
5659
+ modified
5660
+ Hatha
5661
+ yoga
5662
+ on
5663
+ chronic
5664
+ low
5665
+ back
5666
+ pain:
5667
+ a
5668
+ pilot
5669
+ study.
5670
+ Altern
5671
+ Ther
5672
+ Health
5673
+ Med
5674
+ 2004;10:56—9.
5675
+ 37.
5676
+ Chou
5677
+ R,
5678
+ Huffman
5679
+ LH.
5680
+ Nonpharmacologic
5681
+ therapies
5682
+ for
5683
+ acute
5684
+ and
5685
+ chronic
5686
+ low
5687
+ back
5688
+ pain:
5689
+ a
5690
+ review
5691
+ of
5692
+ the
5693
+ evidence
5694
+ for
5695
+ an
5696
+ American
5697
+ Pain
5698
+ Society/American
5699
+ College
5700
+ of
5701
+ Physicians
5702
+ clinical
5703
+ practice
5704
+ guideline.
5705
+ Ann
5706
+ Intern
5707
+ Med
5708
+ 2007;147(October
5709
+ (7)):492—504.
5710
+ 38.
5711
+ Koldas
5712
+ Dogan
5713
+ S,
5714
+ Sonel
5715
+ Tur
5716
+ B,
5717
+ Kurtais
5718
+ Y
5719
+ ,
5720
+ Atay
5721
+ MB.
5722
+ Comparison
5723
+ of
5724
+ three
5725
+ different
5726
+ approaches
5727
+ in
5728
+ the
5729
+ treatment
5730
+ of
5731
+ chronic
5732
+ low
5733
+ back
5734
+ pain.
5735
+ Clin
5736
+ Rheumatol
5737
+ 2008:11.
5738
+ 39.
5739
+ Tekur
5740
+ P
5741
+ ,
5742
+ Chametcha
5743
+ S,
5744
+ Nagendra
5745
+ HR,
5746
+ Raghuram
5747
+ N.
5748
+ Effect
5749
+ of
5750
+ short-term
5751
+ intensive
5752
+ yoga
5753
+ program
5754
+ on
5755
+ pain,
5756
+ functional
5757
+ dis-
5758
+ ability
5759
+ and
5760
+ spinal
5761
+ flexibility
5762
+ in
5763
+ chronic
5764
+ low
5765
+ back
5766
+ pain:
5767
+ a
5768
+ randomized
5769
+ control
5770
+ study.
5771
+ J
5772
+ Altern
5773
+ Complement
5774
+ Med
5775
+ 2008;14:
5776
+ 637—44.
5777
+ 40.
5778
+ Tekur
5779
+ P
5780
+ ,
5781
+ Chametcha
5782
+ S,
5783
+ Hongasandra
5784
+ RN,
5785
+ Raghuram
5786
+ N.
5787
+ Effect
5788
+ of
5789
+ yoga
5790
+ on
5791
+ quality
5792
+ of
5793
+ life
5794
+ of
5795
+ CLBP
5796
+ patients:
5797
+ a
5798
+ randomized
5799
+ control
5800
+ study.
5801
+ Int
5802
+ J
5803
+ Yoga
5804
+ 2010
5805
+ Jan;3(1):10—7.
5806
+ 41.
5807
+ George
5808
+ SZ,
5809
+ Wittmer
5810
+ VT
5811
+ ,
5812
+ Fillingim
5813
+ RB,
5814
+ Robinson
5815
+ ME.
5816
+ Comparison
5817
+ of
5818
+ graded
5819
+ exercise
5820
+ and
5821
+ graded
5822
+ exposure
5823
+ clinical
5824
+ outcomes
5825
+ for
5826
+ patients
5827
+ with
5828
+ chronic
5829
+ low
5830
+ back
5831
+ pain.
5832
+ J
5833
+ Orthop
5834
+ Sports
5835
+ Phys
5836
+ Ther
5837
+ 2010
5838
+ Nov;40(11):694—704.
5839
+ 42.
5840
+ Goubert
5841
+ L,
5842
+ Crombez
5843
+ G,
5844
+ Danneels
5845
+ L.
5846
+ Reluctance
5847
+ to
5848
+ generalize
5849
+ corrective
5850
+ experiences
5851
+ in
5852
+ chronic
5853
+ low
5854
+ back
5855
+ pain
5856
+ patients:
5857
+ a
5858
+ questionnaire
5859
+ study
5860
+ of
5861
+ dysfunctional
5862
+ cognitions.
5863
+ Behav
5864
+ Res
5865
+ Ther
5866
+ 2005
5867
+ Aug;43(8):1055—67.
5868
+ 43.
5869
+ Raghuraj
5870
+ P
5871
+ ,
5872
+ Nagaratna
5873
+ R,
5874
+ Nagendra
5875
+ HR,
5876
+ Telles
5877
+ S.
5878
+ Pranayama
5879
+ increases
5880
+ grip
5881
+ strength
5882
+ without
5883
+ lateralized
5884
+ effects.
5885
+ Indian
5886
+ J
5887
+ Physiol
5888
+ Pharmacol
5889
+ 1997;41:129—33.
5890
+ 44.
5891
+ Chaya
5892
+ MS,
5893
+ Kurpad
5894
+ AV,
5895
+ Nagendra
5896
+ HR,
5897
+ Nagarathna
5898
+ R.
5899
+ The
5900
+ effect
5901
+ of
5902
+ long
5903
+ term
5904
+ combined
5905
+ yoga
5906
+ practice
5907
+ on
5908
+ the
5909
+ basal
5910
+ metabolic
5911
+ rate
5912
+ of
5913
+ healthy
5914
+ adults.
5915
+ BMC
5916
+ Complement
5917
+ Altern
5918
+ Med
5919
+ 2006;6:6—28.
5920
+ 45. Krisanaprakornkit
5921
+
5922
+ T
5923
+ ,
5924
+
5925
+ Krisanaprakornkit
5926
+
5927
+ W,
5928
+
5929
+ Piyavhatkul
5930
+
5931
+ N,
5932
+ Laopaiboon
5933
+ M.
5934
+ Meditation
5935
+ therapy
5936
+ for
5937
+ anxiety
5938
+ disorders.
5939
+ Cochrane
5940
+ Database
5941
+ Syst
5942
+ Rev
5943
+ 2006;25:CD004998.
5944
+ 46.
5945
+ Nagaratna
5946
+ R,
5947
+ Nagendra
5948
+ HR,
5949
+ Crisan
5950
+ HG,
5951
+ Seethalakshmi
5952
+ R.
5953
+ Yoga
5954
+ in
5955
+ Anxiety
5956
+ Neurosis
5957
+
5958
+ a
5959
+ scientific
5960
+ study.
5961
+ In:
5962
+ Proceedings
5963
+ of
5964
+ the
5965
+ International
5966
+ Symposium
5967
+ of
5968
+ the
5969
+ Royal
5970
+ College
5971
+ of
5972
+ Physicians
5973
+ and
5974
+ Surgeons
5975
+ of
5976
+ Glasgow-update
5977
+ Medicine
5978
+ and
5979
+ Surgery.
5980
+ 1988.
5981
+ p.
5982
+ 192—6.
5983
+ 47.
5984
+ Sharma
5985
+ VK,
5986
+ Das
5987
+ S,
5988
+ Mondal
5989
+ S,
5990
+ Goswampi
5991
+ U,
5992
+ Gandhi
5993
+ A.
5994
+ Effect
5995
+ of
5996
+ Sahaj
5997
+ Yoga
5998
+ on
5999
+ depressive
6000
+ disorders.
6001
+ Indian
6002
+ J
6003
+ Physiol
6004
+ Pharmacol
6005
+ 2005;49:462—8.
6006
+ 48.
6007
+ Michalsen
6008
+ A,
6009
+ Grossman
6010
+ P
6011
+ ,
6012
+ Acil
6013
+ A,
6014
+ Langhorst
6015
+ J,
6016
+ Lüdtke
6017
+ R,
6018
+ Esch
6019
+ T
6020
+ ,
6021
+ et
6022
+ al.
6023
+ Rapid
6024
+ stress
6025
+ reduction
6026
+ and
6027
+ anxiolysis
6028
+ among
6029
+ distressed
6030
+ women
6031
+ as
6032
+ a
6033
+ consequence
6034
+ of
6035
+ a
6036
+ three-month
6037
+ intensive
6038
+ yoga
6039
+ pro-
6040
+ gram.
6041
+ Med
6042
+ Sci
6043
+ Monit
6044
+ 2005;11:555—61.
6045
+ 49.
6046
+ Raghuraj
6047
+ P
6048
+ ,
6049
+ Ramakrishna
6050
+ AG,
6051
+ Nagendra
6052
+ HR,
6053
+ Shirley
6054
+ T
6055
+ .
6056
+ Effect
6057
+ of
6058
+ two
6059
+ selected
6060
+ yogic
6061
+ breathing
6062
+ techniques
6063
+ on
6064
+ heart
6065
+ rate
6066
+ variabil-
6067
+ ity.
6068
+ Indian
6069
+ J
6070
+ Physiol
6071
+ Pharmacol
6072
+ 1998;42:467—72.
6073
+ 50.
6074
+ Telles
6075
+ S,
6076
+ Nagaratna
6077
+ R,
6078
+ Nagendra
6079
+ HR,
6080
+ Desiraju
6081
+ T
6082
+ .
6083
+ Alterations
6084
+ in
6085
+ auditory
6086
+ middle
6087
+ latency
6088
+ evoked
6089
+ potentials
6090
+ during
6091
+ meditation
6092
+ on
6093
+ a
6094
+ meaningful
6095
+ syllable-OM.
6096
+ Int
6097
+ J
6098
+ Neurosci
6099
+ 1994;76:87—93.
6100
+ 51.
6101
+ Telles
6102
+ S,
6103
+ Nagarathna
6104
+ R,
6105
+ Nagendra
6106
+ HR.
6107
+ Autonomic
6108
+ changes
6109
+ during
6110
+ OM
6111
+ meditation.
6112
+ Indian
6113
+ J
6114
+ Physiol
6115
+ Pharmacol
6116
+ 1995;39:418—20.
6117
+ 52.
6118
+ Turk
6119
+ DC,
6120
+ Meichenbaum
6121
+ D,
6122
+ Genest
6123
+ M.
6124
+ Pain
6125
+ and
6126
+ behavioural
6127
+ medicine:
6128
+ a
6129
+ cognitive-behavioural
6130
+ perspective. New
6131
+ York:
6132
+ Guil-
6133
+ ford
6134
+ Press;
6135
+ 1983.
6136
+ 53.
6137
+ Lokeswarananda
6138
+ S.
6139
+ Taittireya
6140
+ upanishad.
6141
+ Kolkatta:
6142
+ The
6143
+ Ramakr-
6144
+ ishna
6145
+ Mission
6146
+ Institute
6147
+ of
6148
+ Culture;
6149
+ 1996.
6150
+ 54.
6151
+ Nagendra
6152
+ HR,
6153
+ Nagarathna
6154
+ R.
6155
+ New
6156
+ perspectives
6157
+ in
6158
+ stress
6159
+ man-
6160
+ agement.
6161
+ Bengaluru:
6162
+ Vivekananda
6163
+ Kendra
6164
+ Prakashana;
6165
+ 1997.
6166
+ 55.
6167
+ Telles
6168
+ S,
6169
+ Reddy
6170
+ Satish
6171
+ Kumar,
6172
+ Nagendra
6173
+ HR.
6174
+ Oxygen
6175
+ consumption
6176
+ and
6177
+ respiration
6178
+ following
6179
+ two
6180
+ yoga
6181
+ relaxation
6182
+ techniques.
6183
+ Appl
6184
+ Psychophysiol
6185
+ Biofeedback
6186
+ 2000;25:221—7.
6187
+ 56.
6188
+ Nagendra
6189
+ HR.
6190
+ Mind
6191
+ sound
6192
+ resonance
6193
+ technique.
6194
+ Bengaluru:
6195
+ Swami
6196
+ Vivekananda
6197
+ Yoga
6198
+ Prakashana;
6199
+ 1998.
6200
+ 57.
6201
+ Melzack
6202
+ R,
6203
+ Wall
6204
+ PD.
6205
+ Pain
6206
+ mechanisms:
6207
+ a
6208
+ new
6209
+ theory.
6210
+ Science
6211
+ 1965;150:971—9.
6212
+ 58.
6213
+ Kjaer
6214
+ TW,
6215
+ Bertelsen
6216
+ C,
6217
+ Piccini
6218
+ P
6219
+ ,
6220
+ Brooks
6221
+ D,
6222
+ Alving
6223
+ J,
6224
+ Lou
6225
+ HC.
6226
+ Increased
6227
+ dopamine
6228
+ tone
6229
+ during
6230
+ meditation-induced
6231
+ change
6232
+ of
6233
+ consciousness.
6234
+ Brain
6235
+ Res
6236
+ Cogn
6237
+ Brain
6238
+ Res
6239
+ 2002;13:255—9.
6240
+ 59.
6241
+ Hayden
6242
+ JA,
6243
+ van
6244
+ Tulder
6245
+ MW,
6246
+ Tomlinson
6247
+ G.
6248
+ Systematic
6249
+ review:
6250
+ strategies
6251
+ for
6252
+ using
6253
+ exercise
6254
+ therapy
6255
+ to
6256
+ improve
6257
+ outcomes
6258
+ in
6259
+ chronic
6260
+ low
6261
+ back
6262
+ pain.
6263
+ Ann
6264
+ Intern
6265
+ Med
6266
+ 2005;142(9):776—85.
6267
+ 60.
6268
+ Abrams
6269
+ AI.
6270
+ A
6271
+ follow-up
6272
+ study
6273
+ on
6274
+ the
6275
+ effects
6276
+ of
6277
+ the
6278
+ transcenden-
6279
+ tal
6280
+ meditation
6281
+ program
6282
+ on
6283
+ inmates
6284
+ at
6285
+ Folsom
6286
+ State
6287
+ Prison.
6288
+ Paper
6289
+ 280.
6290
+ In:
6291
+ Chalmers
6292
+ R,
6293
+ Clements
6294
+ G.,
6295
+ Schenkluhn
6296
+ H.,
6297
+ Weinless
6298
+ M.,
6299
+ editors.
6300
+ Scientific
6301
+ research
6302
+ on
6303
+ Maharishi’s
6304
+ transcendental
6305
+ meditation
6306
+ and
6307
+ TM-Sidhi
6308
+ programme
6309
+ collected
6310
+ papers,
6311
+ Vol.
6312
+ 3.
6313
+ Vlodrop:
6314
+ MERU
6315
+ Press;
6316
+ 1990.
6317
+ p.
6318
+ 2108—12.
subfolder_0/A randomised control trail of the effect of yoga on gunas.txt ADDED
@@ -0,0 +1,1324 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ International Journal of Yoga
2
+
3
+ !
4
+
5
+ Vol. 1:1
6
+
7
+ !
8
+
9
+ Jan-Jun-2008
10
+ 2
11
+ A randomized control trial of the effect of yoga on Gunas
12
+ (personality) and Health in normal healthy volunteers
13
+ Sudheer Deshpande, Nagendra H R, Raghuram Nagarathna
14
+ Department of Yoga Research, Swami Vivekananda Yoga Anusandhana Samsthana, Bangalore, India.
15
+ Objective: To study the effi
16
+ cacy of yoga on Guna (yogic personality measure) and general health in normal adults.
17
+ Methods: Of the 1228 persons who attended introductory lectures, 226 subjects aged 18–71 years, of both sexes, who satisfi
18
+ ed
19
+ the inclusion and exclusion criteria and who consented to participate in the study were randomly allocated into two groups.
20
+ The Yoga(Y) group practised an integrated yoga module that included asanas, pranayama, meditation, notional correction
21
+ and devotional sessions. The control group practised mild to moderate physical exercises (PE). Both groups had supervised
22
+ practice sessions (by trained experts) for one hour daily, six days a week for eight weeks. Guna (yogic personality) was
23
+ assessed before and after eight weeks using the self-administered Vedic Personality Inventory (VPI) which assesses Sattva
24
+ (gentle and controlled), Rajas (violent and uncontrolled) and Tamas (dull and uncontrolled).
25
+ The general health status (total health), which includes four domains namely somatic symptoms (SS), anxiety and insomnia
26
+ (AI), social dysfunction (SF) and severe depression (SP), was assessed using a General Health Questionnaire (GHQ).
27
+ Results: Baseline scores for all the domains for both the groups did not differ signifi
28
+ cantly (P > 0.05, independent samples
29
+ t test). Sattva showed a signifi
30
+ cant difference within the groups and the effect size was more in the Y than in the PE group.
31
+ Rajas showed a signifi
32
+ cant decrease within and between the groups with a higher effect size in the PE group. Tamas showed
33
+ signifi
34
+ cant reduction within the PE group only. The GHQ revealed that there was signifi
35
+ cant decrease in SS, AI, SF and SP in
36
+ both Y and PE groups (Wilcoxcon Singed Rank t test). SS showed a signifi
37
+ cant difference between the groups (Mann Whitney
38
+ U Test).
39
+ Conclusions: There was an improvement in Sattva in both the Yoga and control groups with a trend of higher effect size in
40
+ Yoga; Rajas reduced in both but signifi
41
+ cantly better in PE than in Yoga and Tamas reduced in PE. The general health status
42
+ improved in both the Yoga and control groups.
43
+ Keywords: General health; guna; Yoga.
44
+ The present age of speed and competition has increased
45
+ the stresses and strains resulting in an increasing
46
+ prevalence of life style-related health problems.[1] One
47
+ of the increasingly popular tools to overcome this new
48
+ challenge is physical activity. There is growing evidence
49
+ that has established the benefits of physical exercises in
50
+ preventing life style-related diseases[2] such as primary
51
+ prevention of diabetes,[3] prevention of cardiac diseases
52
+ through control over major risk factors such as smoking,
53
+ lipids, obesity and stress,[4] better quality of life of cancer
54
+ patients,[5] positive health in normal persons through
55
+ better physical fitness[6] and stress reduction.[7] Yoga
56
+ which is considered to be a tool for both physical and
57
+ mental development of an individual is being recognized
58
+ Original Article
59
+ around the globe only in the last century although it has
60
+ been practised in India over several centuries to promote
61
+ positive health and well being. It gives solace for the
62
+ restless mind and can give great relief to the sick.[8,9] It has
63
+ become quite fashionable even for the common man to keep
64
+ fit.[10] Some use yoga for developing memory, intelligence
65
+ and creativity.[11] With its multifold advantages, yoga is
66
+ becoming a part of school education.[12] Specialists use
67
+ it to unfold deeper layers of consciousness in their move
68
+ towards spiritual perfection.[13] With growing scientific
69
+ evidence, yoga is emerging as an important health
70
+ behavior-modifying practice to achieve states of health,
71
+ both at physical and mental levels. Several studies have
72
+ demonstrated the beneficial effects of yoga on health
73
+ Correspondence to: Dr. Nagarathna Raghuram
74
+ No19, Eknath Bhavan, Gavipuram Circle,
75
+ K. G. Nagar, Bangalore – 560 019. India.
76
+ E-mail: [email protected]
77
+ ABSTRACT
78
+ [Downloaded free from http://www.ijoy.org.in on Tuesday, August 18, 2009]
79
+ 3
80
+ International Journal of Yoga
81
+
82
+ !
83
+
84
+ Vol. 1:1
85
+
86
+ !
87
+
88
+ Jan-Jun-2008
89
+ behavior in many life style-related somatic problems
90
+ such as hypertension,[14] bronchial asthma,[15] diabetes[16]
91
+ including some psychiatric conditions such as anxiety
92
+ neurosis[17] and depressive illness[18] etc.
93
+ The philosophy of yoga believes that somatic problems are
94
+ nothing but a manifestation of an imbalance between three
95
+ Gunas (Sattva, Rajas and Tamas) that go to constitute the
96
+ body-mind complex of the individual.[19] Further, in the
97
+ famous scriptural text, the Gita; a guna indicates a specific
98
+ behavior style. Sattva is symbolized by purity, wisdom,
99
+ bliss, serenity, love of knowledge, spiritual excellence and
100
+ other noble and sublime qualities. Rajas is symbolized
101
+ by egoism, activity, restlessness and hankering after
102
+ mundane things like wealth, power, valor and comforts.
103
+ Tamas is related to qualities such as bias, heedlessness
104
+ and inertia, perversion in taste, thought and action.[20] Ill
105
+ health occurs if Rajas or Tamas become dominant and
106
+ the individual gets habituated to either of these response
107
+ patterns. Furthermore, the Gita goes on to analyze the
108
+ state of mind and says that when one is dominated by
109
+ these two gunas, the individual loses mastery over the
110
+ uncontrolled, speeded-up loop of sentences of the internal
111
+ dialogue, which shows up as upsurges of emotions and
112
+ impulsive behavior. In an ideal state of perfect health,
113
+ man has the complete freedom to use any of these three
114
+ patterns (Satva, Rajas or Tamas) of responses. Hence,
115
+ the degree of positive health can be measured by a tool
116
+ that can grade these three patterns of behavior.[19] The
117
+ tool can be used for assessment of interventions used for
118
+ treatment or prevention of diseases as well as for promotion
119
+ of positive health. The Vedic Personality Inventory
120
+ (VPI)[21] is a valid and reliable inventory that can measure
121
+ the three patterns of behavior.
122
+ While Yoga is getting popular, the relative roles of yoga
123
+ and physical exercises have not been studied on gunas
124
+ and health. Hence, the present study was designed to
125
+ assess the changes in the personality and overall health
126
+ status after yoga as compared to physical exercise
127
+ in a randomized controlled study in normal healthy
128
+ volunteers.
129
+ METHOD
130
+ Subjects
131
+ Of the 1228 adults who attended motivational lectures,
132
+ 226 subjects consented to participate in the study and
133
+ were randomly allocated to two groups of equal size. After
134
+ attrition, the final sample sizes were 87 in both the yoga
135
+ and control groups.
136
+ Inclusion criteria were: (a) normal healthy volunteers, (b)
137
+ age 18–71 years, (c) literacy and (d) scores less than 4/5
138
+ in the General Health Questionnaire.[22]
139
+ Exclusion criteria were: (a) subjects with any ailment, (b)
140
+ smoking and (c) substance abuse.
141
+ Source of subjects: Normal adults were recruited from
142
+ five different locations in Bangalore after public talks at
143
+ different institutions such as colleges, health clubs, Rotary
144
+ Clubs, Lion’s clubs and big apartment complexes.
145
+ Informed consent was obtained from all the subjects
146
+ who participated in the project and also from the
147
+ institutional heads where the classes were conducted.
148
+ The institutional ethical committee of SVYASA cleared
149
+ the project proposal.
150
+ Design
151
+ This is a prospective, randomized, single-blind, controlled
152
+ study aiming to compare the efficacy of yoga (Y) and
153
+ physical exercise (PE) in normal healthy volunteers in
154
+ a South Indian population. Introductory lectures were
155
+ arranged in public centers such as colleges, health clubs,
156
+ Rotary clubs, Lion’s clubs and apartment complexes. The
157
+ classes were planned in five different centers in the city
158
+ of Bangalore. Two hundred and twenty-six persons who
159
+ consented to participate in the study and satisfied the
160
+ inclusion and exclusion criteria were randomly allotted
161
+ to two groups by using five random number tables
162
+ (different table for each center) generated from the random
163
+ number generator program.[23] The experimental group
164
+ was given Y practices and the control group was given
165
+ PE for one hour daily on empty stomach (6 to 7 a.m.).
166
+ The classes were conducted six days a week for eight
167
+ weeks and attendance was maintained by the teachers.
168
+ Trained experts (in yoga for the Y group and PT for the
169
+ PE group) conducted parallel sessions for the two groups
170
+ in different rooms in the same venue. It was ensured that
171
+ there was no interaction between the subjects. The tests
172
+ were self-administered before and eight weeks after the
173
+ intervention. Arrangements were made for the subjects to
174
+ sit in a quiet place free from distractions and influence
175
+ from other people.
176
+ Masking: The answered questionnaires were coded and
177
+ kept away for future scoring. A psychologist who was not
178
+ involved in the subject allocation or supervision of the
179
+ classes scored the questionnaires which were decoded
180
+ only after the scoring of both the before and after data
181
+ was completed.
182
+ Assessments
183
+ Assessments were done using the following
184
+ questionnaires:
185
+ 1. The Vedic Personality Inventory (VPI): In 1998, Wolf
186
+ developed an inventory to assess three personality
187
+ Effect of Yoga on Gunas and Health
188
+ [Downloaded free from http://www.ijoy.org.in on Tuesday, August 18, 2009]
189
+ International Journal of Yoga
190
+
191
+ !
192
+
193
+ Vol. 1:1
194
+
195
+ !
196
+
197
+ Jan-Jun-2008
198
+ 4
199
+ constructs (gunas) based on their description in the
200
+ most ancient Indian scriptures called Vedas. Hence,
201
+ this inventory was named the VPI and it measures
202
+ the three gunas—Sattva, Rajas and Tamas. It has 30
203
+ items for the Sattva guna, 28 for rajoguna and 32 for
204
+ tamo guna. VPI has good internal consistency and
205
+ reliability with Cronbach’s alpha ranging from 0.850
206
+ for Sattva, 0.915 for Rajas and 0.699 for Tamas. In
207
+ terms of discriminant validity, all but one facet had
208
+ significant differences.[21]
209
+ 2. General Health Questionnaire (GHQ): The GHQ
210
+ designed by Goldberg in order to identify psychiatric
211
+ morbidity in general practice, is a self-administered
212
+ questionnaire (English version). It has 28 items with
213
+ four subscales to measure somatic symptoms (SS),
214
+ anxiety and insomnia (AI), social dysfunction (SF) and
215
+ severe depression (SP). It provides information about
216
+ the recent mental status, thus identifying the presence
217
+ of possible psychiatric disturbance. This questionnaire
218
+ has acceptable psychometric properties and has good
219
+ internal consistency and reliability with Cronbach’s
220
+ alpha of 0.85 and validity of 0.76.[24]
221
+ INTERVENTION
222
+ Yoga group
223
+ The Integrated yoga module was selected from the
224
+ integrated set of yoga practices used in earlier studies on
225
+ the effects of yoga for positive health.[25] This integrated
226
+ approach is developed based on ancient Yoga texts[26]
227
+ to bring about a total development at physical, mental,
228
+ emotional, social and spiritual levels.[27] The techniques
229
+ include physical practices (kriyas, asanas, a healthy
230
+ yoga diet), breathing practices with body movements and
231
+ Pranayama, meditation, devotional sessions, lectures on
232
+ yoga, stress management and lifestyle change through
233
+ notional corrections for blissful awareness under all
234
+ circumstances (action in relaxation). Yoga was taught by
235
+ qualified yoga teachers.
236
+ Physical exercise group
237
+ The set of physical exercises were standard execises[28]
238
+ meant to provide mild to moderate activity designed by
239
+ experts in physical education.
240
+ Data extraction
241
+ The scoring of the questionnaires was carried out as per
242
+ the instructions in the manuals. The structure of these
243
+ questionnaires is described below:
244
+ 1. VPI evaluates the Sattva, Rajas and Tamas gunas by
245
+ using a 7-point Likert-type scale. Scores for the gunas
246
+ are obtained by adding the responses for the items for a
247
+ guna and then dividing by the number of items for that
248
+ mode. For each subscale, a higher score indicates a greater
249
+ predominance of that mode. The minimum and maximum
250
+ possible scores for the three domains range from 1–7.
251
+ 2. GHQ: This 28 item test using a binary method of scoring
252
+ (0, 0, 1, 1) yields an assessment on four robust subscales:
253
+ somatic symptoms (SS), anxiety and insomnia (AI), social
254
+ dysfunction (SF) and severe depression (SP). A sum of the
255
+ scores for these four subscales gives the score for total
256
+ health. The lower the scores in the GHQ, the better the
257
+ state of health. The cut-off scores for the GHQ used for
258
+ this study were 4 or 5 (4/5).[22]
259
+ Statistical analysis
260
+ Data was analyzed using the SPSS package version 10.0.
261
+ Based on a previous study,[29] the effect size was calculated
262
+ to be 0.8. With a power of 0.8 and alpha set to 0.05,
263
+ the minimum sample size was found to be 164. This
264
+ calculation was done using G power.[30] The size of the
265
+ sample actually used was 174.
266
+ Data at baseline was assessed for normal distribution
267
+ using Shapiro-Wilk’s test for both the groups. Independent
268
+ samples t-test was done for checking homogeneity of
269
+ baseline scores of the two groups. Paired samples t test
270
+ and independent samples t test were used for VPI which
271
+ had normally distributed data and Wilcoxon’s signed ranks
272
+ and Mann Whitney U tests were used for GHQ data which
273
+ were not normally distributed. An independent samples
274
+ t test was done to analyze between the groups and paired
275
+ samples test within groups. The effect size of the study
276
+ (mean A – mean B)/ standard deviation (SD) of difference
277
+ scores) is an absolute measure of the difference that exists
278
+ between the populations for a parameter, a concept first
279
+ introduced by the sociologist, J. Cohen.[31]
280
+ As the study population had a wide age range, statistical
281
+ analysis was also carried out by grouping them as juniors
282
+ (age ≤ 24 years) and seniors (age > 24 years) based on the
283
+ median age. The independent samples t-test for between
284
+ groups and paired samples t test for within groups were
285
+ conducted for the two age groups. The data was also
286
+ analyzed using gender as a factor.
287
+ RESULTS
288
+ Figure 1 shows the study profile wherein of 1228 subjects
289
+ who attended the motivational lectures, only 226 who
290
+ satisfied the inclusion and exclusion criteria were selected
291
+ and randomly allotted to the Y and PE groups. The reasons
292
+ Deshpande S, et al.
293
+ [Downloaded free from http://www.ijoy.org.in on Tuesday, August 18, 2009]
294
+ 5
295
+ International Journal of Yoga
296
+
297
+ !
298
+
299
+ Vol. 1:1
300
+
301
+ !
302
+
303
+ Jan-Jun-2008
304
+ for dropout of 52 subjects are shown in Figure 1.
305
+ Table 1 shows the demographic data. There were 87
306
+ subjects (40 females) in each group aged 18–71 years, the
307
+ mean age being 29.44 ± 11.94 years. They belonged to
308
+ different callings such as college students, professionals,
309
+ housewives and retired persons.
310
+ The baseline values were normally distributed for Tamas
311
+ (P = 0.209) and Sattva (P = 0.717) and were well-matched
312
+ for all three domains (Independent samples t-test).
313
+ Table 2 shows the comparison of the baseline scores for
314
+ the three gunas of the VPI with the norms provided in the
315
+ manual. It showed that the scores are within the predicted
316
+ normal range. The mean value is marginally higher for
317
+ Sattva and lower for Rajas and Tamas in the South Indian
318
+ population selected in the present study as compared to
319
+ the norms from studies in the USA.
320
+ Tamas: The PE group showed a significant decrease in
321
+ the Tamas score from 3.24 to 2.99 (P = 0.001) (paired
322
+ samples t test). The senior subjects (age > 24 years) in both
323
+ the Y (3.09 to 2.67) and PE (3.21 to 2.83) groups showed
324
+ a significant decrease (P = 0.001). In gender analysis,
325
+ females showed a decrease with Y (P = 0.040) and males
326
+ showed a decrease with PE (P = 0.032).
327
+ Rajas: The PE group showed a significant decrease in
328
+ scores from 3.67 to 3.43 (P = 0.002). Seniors in both the
329
+ Y (3.81 to 3.51) (P = 0.002) and PE (3.62 to 3.31) groups
330
+ (P = 0.015) have shown significant decreases. In gender
331
+ analysis, males showed a decrease with PE (3.73 to 3.37)
332
+ (P = 0.014). Significantly greater reduction was observed
333
+ in the PE than in the Y group (P = 0.005) and in juniors
334
+ (P = 0.012).
335
+ Sattva: Sattva scores have increased significantly in
336
+ both Y (4.88 to 5.26) (P = 0.001) and PE (4.91 to 5.21)
337
+ (P < 0.001) groups with a greater effect size in the Y
338
+ Table 1: Demographic data for VPI
339
+ Age Sex
340
+
341
+ Y
342
+ PE
343
+
344
+
345
+ (n = 87)
346
+ (n = 87)
347
+
348
+
349
+ 31.33±11.9 5
350
+ 32.35±11.32
351
+ ≤ 24 years (Juniors)
352
+ Male (m±SD)
353
+ 26.79±12.20
354
+ 28.00±11.76
355
+
356
+ Female (m±SD)
357
+ 20.00±1.75
358
+ 20.29±1.44
359
+ > 24 years (Seniors)
360
+ Male (m±SD)
361
+ 20.61±1.82
362
+ 20.73±1.89
363
+
364
+ Female (m±SD)
365
+ 38.88±9.55
366
+ 30.85±8.56
367
+ Gender
368
+ Male (m±SD)
369
+ 41.36±13.89
370
+ 40.82±10.85
371
+
372
+ Range
373
+ 18–71
374
+ 18–58
375
+
376
+ Female
377
+ 40
378
+ 40
379
+ Categories
380
+ Male
381
+ 47
382
+ 47
383
+
384
+ Students
385
+ 49
386
+ 44
387
+
388
+ Employees
389
+ 18
390
+ 30
391
+
392
+ Housewives
393
+ 10
394
+ 7
395
+
396
+ Business
397
+ 10
398
+ 6
399
+ Table 2: VPI scores for yoga and control groups—comparison of means (paired samples test)
400
+
401
+ Before
402
+ After
403
+ P value
404
+ Effect Size
405
+ Before
406
+ After
407
+ P value
408
+ Effect Size
409
+
410
+ Means±SD
411
+ Means±SD
412
+
413
+
414
+ Means±SD
415
+ Means±SD
416
+
417
+
418
+ Y
419
+ Y
420
+
421
+
422
+ PE
423
+ PE
424
+
425
+ Tamas
426
+ 3.12 ± 0.51
427
+ 2.97 ± 0.91
428
+ 0.095
429
+ 0.18
430
+ 3.24 ± 0.67
431
+ 2.99 ± 0.69
432
+ 0.001
433
+ 0.36
434
+ Rajas
435
+ 3.83 ± 0.62
436
+ 3.72 ± 0.51
437
+ 0.12
438
+ 0.17
439
+ 3.67 ± 0.62
440
+ 3.43 ± 0.79
441
+ 0.002*
442
+ 0.33
443
+ Sattva
444
+ 4.88 ± 0.52
445
+ 5.26 ± 0.51
446
+ <0.001
447
+ 0.61
448
+ 4.91 ± 0.53
449
+ 5.21 ± 0.65
450
+ <0.001
451
+ 0.45
452
+ * Rajas showed a significant difference between the groups (P = 0.005) (Independent Samples Test); (Effect size = difference in means (after–before)/SD of the
453
+ difference scores)
454
+ Table 3: VPI scores in age groups - Age ≤ 24 years and > 24 years (paired-samples t test)
455
+
456
+
457
+ Before
458
+ After
459
+ P value
460
+ Before
461
+ After
462
+ P value
463
+
464
+
465
+ Means±SD
466
+ Means±SD
467
+
468
+ Means±SD
469
+ Means±SD
470
+
471
+
472
+ Y
473
+ Y
474
+
475
+ PE
476
+ PE
477
+ Age ≤ 24 years
478
+ Tamas
479
+ 3.16 ± 0.49
480
+ 3.20 ± 1.63
481
+ 0.774
482
+ 3.28 ± 0.67
483
+ 3.16 ± 2.13
484
+ 0.4
485
+
486
+ Rajas
487
+ 3.84 ± 0.66
488
+ 3.99 ± 0.74
489
+ 0.286
490
+ 3.75 ± 0.63
491
+ 3.56 ± 0.75
492
+ 0.152
493
+
494
+ Sattva
495
+ 4.67 ± 0.47
496
+ 5.26 ± 0.55
497
+ <0.001
498
+ 4.79 ± 0.44
499
+ 5.14 ± 0.65
500
+ 0.002
501
+ Age > 24 years
502
+ Tamas
503
+ 3.09 ± 0.53
504
+ 2.67 ± 0.69
505
+ 0.001
506
+ 3.21 ± 0.68
507
+ 2.83 ± 0.77
508
+ 0.001
509
+
510
+ Rajas
511
+ 3.81 ± 0.61
512
+ 3.51 ± 0.57
513
+ 0.002
514
+ 3.62 ± 0.62
515
+ 3.31 ± 0.83
516
+ 0.015
517
+
518
+ Sattva
519
+ 4.91 ± 0.59
520
+ 5.12 ± 0.45
521
+ 0.001
522
+ 5.00 ± 0.59
523
+ 5.09 ± 0.62
524
+ 0.014
525
+ Effect of Yoga on Gunas and Health
526
+ [Downloaded free from http://www.ijoy.org.in on Tuesday, August 18, 2009]
527
+ International Journal of Yoga
528
+
529
+ !
530
+
531
+ Vol. 1:1
532
+
533
+ !
534
+
535
+ Jan-Jun-2008
536
+ 6
537
+ (0.61) than in the PE (0.45) group. Juniors, seniors, males
538
+ and females in both the Y and PE groups have all shown
539
+ significant increase in Sattva scores.
540
+ Table 5 shows the results for all variables of the GHQ.
541
+ Somatic symptoms (SS): SS symptoms have reduced
542
+ significantly in both Y (0.57 to 0.29) (P = 0.011) and PE
543
+ (0.41 to 0.11) (P = 0.001) groups. Juniors, seniors, males
544
+ and females of the PE group have shown significant
545
+ decrease in SS. Seniors and males in the Y group have
546
+ shown significant decrease in SS. There was a significant
547
+ difference between the groups.
548
+ Anxiety and insomnia (AI): AI symptoms have decreased
549
+ significantly in both the Y (0.61 to 0.08) (P < 0.01) and PE
550
+ (0.49 to 0.18) (P = 0.011) groups. Juniors, seniors, females
551
+ and males in the in Y group have shown significant
552
+ decrease in AI whereas only seniors and males have shown
553
+ significant decrease in AI in the PE group.
554
+ Social dysfunction (SF): A significant decrease was
555
+ observed in both the Y (0.60 to 0.15) (P ≤ 0.001) and PE
556
+ (0.60 to 0.23) (P = 0.001) groups. Juniors, females and
557
+ males have shown significant decrease in SD with Yoga
558
+ whereas juniors, seniors, males and females have shown
559
+ significant decrease in SD due to PE.
560
+ Severe depression (SP): Both Y (0.44 to 0.22) (P = 0.017)
561
+ and PE (0.52 to 0.15) (P < 0.01) groups have shown
562
+ significant reduction in SP
563
+ . Juniors, seniors, females and
564
+ males have shown a significant decrease in SP due to PE.
565
+ Only seniors and males have shown a significant decrease
566
+ in SP due to yoga.
567
+ DISCUSSION
568
+ This is a randomized, controlled, prospective study in
569
+ normal adults comparing the efficacy of yoga with a
570
+ control intervention of PE of eight weeks in 174 normal
571
+ adults on changes in their personality (guna) and General
572
+ health as assessed by VPI and GHQ. The results showed
573
+ that there was an increase in Sattva scores (P < 0.001) in
574
+ both Y and PE groups and a decrease in Rajas (P = 0.002)
575
+ and tamas (P = 0.01) scores in the PE group. The scores for
576
+ Tamas decreased significantly in seniors of both the groups
577
+ (females in Y and males in PE) (paired samples t test).
578
+ The increase in Sattva scores was higher in the Y group
579
+ Orientation Seminar Conducted at different parts of Bangalore
580
+ 1228
581
+ Consented to participate in the project
582
+ 226
583
+ Centre I
584
+ 66
585
+ Centre II
586
+ 30
587
+ Centre V
588
+ 32
589
+ Centre III
590
+ 50
591
+ Centre IV
592
+ 48
593
+ Randomized
594
+ 226
595
+ Yoga
596
+ 33
597
+ PE
598
+ 33
599
+ Yoga
600
+ 15
601
+ PE
602
+ 15
603
+ Yoga
604
+ 25
605
+ PE
606
+ 25
607
+ Yoga
608
+ 24
609
+ Yoga
610
+ 22
611
+ PE
612
+ 30
613
+ No. of People dropped
614
+ 52
615
+ No, of subjects in the project
616
+ 174
617
+ Yoga
618
+ 24
619
+ PE
620
+ 16
621
+ Yoga
622
+ 16
623
+ Reasons for dropping
624
+
625
+ Yoga PE
626
+
627
+
628
+
629
+
630
+
631
+
632
+
633
+
634
+
635
+
636
+
637
+
638
+
639
+
640
+
641
+
642
+
643
+
644
+
645
+ Yoga
646
+ 87
647
+ PE
648
+ 87
649
+ 1. Change of address
650
+ 4
651
+ 10
652
+ 2. Unexpected duty shifts
653
+ 5
654
+ 7
655
+ 3. Weather conditions
656
+ 3
657
+ 2
658
+ 4. Out of station
659
+ 7
660
+ 3
661
+ 5. Ill health
662
+ 3
663
+
664
+ 6. Wanted to shift to yoga
665
+
666
+ 8
667
+ Total
668
+ 22
669
+ 30
670
+ Comparison between our data and Vpi data
671
+ Deshpande S, et al.
672
+ [Downloaded free from http://www.ijoy.org.in on Tuesday, August 18, 2009]
673
+ 7
674
+ International Journal of Yoga
675
+
676
+ !
677
+
678
+ Vol. 1:1
679
+
680
+ !
681
+
682
+ Jan-Jun-2008
683
+ (effect size 0.61) than in the PE group (effect size 0.45)
684
+ (paired samples t test). The decrease in the Rajas scores
685
+ was significantly higher in the PE than in the Y (P=0.005)
686
+ (independent samples t-test) groups and this was seen
687
+ in juniors and males. The GHQ revealed a significant
688
+ improvement on all four domains and the overall health in
689
+ both groups after the intervention (P ≤ 0.001) (Wilcoxon’s
690
+ signed rank test). It can be seen from the GHQ scores that
691
+ PE was more effective in reducing somatic symptoms
692
+ (P = 0.018) (Mann Whitney test), severe depression (effect
693
+ size for Y = 1.46, PE = 1.60) and anxiety and insomnia
694
+ (effect size for Y = 0.98, PE = 1.93).
695
+ A similar study by Dasa[32] conducted by the use of
696
+ mahamantra in a three-armed, randomized prospective,
697
+ controlled study on 62 volunteers showed that the
698
+ mahamantra group had increased Sattva and decreased
699
+ Tamas with no significant change in Rajas scores on the VPI
700
+ questionnaire after a month of chanting of mahamantra,
701
+ 20 minutes daily for four weeks. In the present study,
702
+ apart from an increase in Sattva and decrease in Tamas,
703
+ there is a significant decrease in Rajas which was not
704
+ observed after Mahamantra. This difference could be
705
+ because of the inclusion of Asanas and Pranayama to
706
+ the Meditation technique in the integrated yoga program
707
+ used in the present study as compared to the mahamantra
708
+ which is mainly a form of meditation. In their study, Dasa
709
+ et al. also showed a significant reduction in stress, anxiety
710
+ and depression after mahamantra as measured by State
711
+ Trait Anxiety Inventory (STAI) comparable to the results
712
+ of GHQ in this study.
713
+ The behavior of a human being is an expression of
714
+ a combination of different gunas. Tamas (meaning
715
+ darkness) is the grossest aspect of our personality
716
+ characterized by excessive sleep, innocence, laziness,
717
+ depression, procrastination, a feeling of helplessness,
718
+ impulsivity, anger and arrogance (packed up with vital
719
+ energy). When we reduce Tamas through mastery over
720
+ the mind, we become dynamic, sensitive and sharp to
721
+ move towards Rajas (the shining one) characterized by
722
+ intense activity, ambitiousness, competitiveness, high
723
+ Table 6: GHQ scores: Age ≤ 24 years and > 24 years (Wilcoxon signed ranks test)
724
+
725
+
726
+ Before
727
+ After
728
+ P value
729
+ Before
730
+ After
731
+ P value
732
+
733
+
734
+ Means±SD
735
+ Means±SD
736
+
737
+ Means±SD
738
+ Means±SD
739
+
740
+
741
+ Y
742
+ Y
743
+
744
+ PE
745
+ PE
746
+ Age ≤ 24 years
747
+ SS
748
+ 0.65 ± 0.93
749
+ 0.43 ± 0.76
750
+ 0.161
751
+ 0.43 ± 0.76
752
+ 0.14 ± 0.35
753
+ 0.01
754
+
755
+ AI
756
+ 0.71 ± 0.96
757
+ 0.10 ± 0.47
758
+ <0.001
759
+ 0.66 ± 0.99
760
+ 0.30 ± 1.00
761
+ 0.057
762
+
763
+ SF
764
+ 0.80 ± 0.98
765
+ 0.18 ± 0.44
766
+ <0.001
767
+ 0.75 ± 1012
768
+ 0.34 ± 0.64
769
+ 0.019
770
+
771
+ SP
772
+ 0.45 ± 0.71
773
+ 0.29 ± 0.68
774
+ 0.185
775
+ 0.64 ± 0.89
776
+ 0.16 ± 0.43
777
+ <0.001
778
+
779
+ TH
780
+ 2.61 ± 2.54
781
+ 1.00 ± 1.44
782
+ <0.001
783
+ 2.48 ± 3.11
784
+ 0.93 ± 1.53
785
+ 0.001
786
+ Age > 24 years
787
+ SS
788
+ 0.47 ± 0.89
789
+ 0.11 ± 0.39
790
+ 0.004
791
+ 0.40 ± 0.85
792
+ 0.09 ± 0.29
793
+ 0.044
794
+
795
+ AI
796
+ 0.47 ± 0.86
797
+ 0.05 ± 0.23
798
+ 0.002
799
+ 0.33 ± 0.78
800
+ 0.06 ± 0.26
801
+ 0.047
802
+
803
+ SF
804
+ 0.34 ± 0.75
805
+ 0.11 ± 0.31
806
+ 0.071
807
+ 0.44 ± 0.83
808
+ 0.12 ± 0.32
809
+ 0.017
810
+
811
+ SP
812
+ 0.42 ± 0.76
813
+ 0.13 ± 0.41
814
+ 0.047
815
+ 0.40 ± 0.79
816
+ 0.14 ± 0.41
817
+ 0.013
818
+
819
+ TH
820
+ 1.71 ± 2.25
821
+ 0.39 ± 1.00
822
+ 0.001
823
+ 1.56 ± 2.00
824
+ 0.42 ± 0.00
825
+ 0.003
826
+ Table 4: Gender-based VPI scores (paired samples t test)
827
+
828
+
829
+ Before
830
+ After
831
+ P value
832
+ Before
833
+ After
834
+ P value
835
+
836
+
837
+ Means±SD
838
+ Means±SD
839
+
840
+ Means±SD
841
+ Means±SD
842
+
843
+
844
+ Y
845
+ Y
846
+
847
+ PE
848
+ PE
849
+ Females
850
+ Tamas
851
+ 3.15 ± 0.52
852
+ 2.80 ± 1.04
853
+ 0.04
854
+ 3.20 ± 0.71
855
+ 2.97 ± 0.71
856
+ 0.053
857
+
858
+ Rajas
859
+ 3.66 ± 0.62
860
+ 3.43 ± 0.48
861
+ 0.502
862
+ 3.64 ± 0.63
863
+ 3.50 ± 0.80
864
+ 0.196
865
+
866
+ Sattva
867
+ 4.91 ± 0.42
868
+ 5.20 ± 0.50
869
+ 0.004
870
+ 4.98 ± 0.58
871
+ 5.23 ± 0.62
872
+ 0.034
873
+ Males
874
+ Tamas
875
+ 3.11 ± 0.50
876
+ 3.10 ± 0.58
877
+ 0.924
878
+ 3.28 ± 0.65
879
+ 3.01 ± 0.46
880
+ 0.032
881
+
882
+ Rajas
883
+ 3.96 ± 0.63
884
+ 3.96 ± 0.41
885
+ 0.898
886
+ 3.73 ± 0.63
887
+ 3.50 ± 0.79
888
+ 0.014
889
+
890
+ Sattva
891
+ 4.86 ± 0.60
892
+ 5.33 ± 0.52
893
+ <0.001
894
+ 4.80 ± 0.49
895
+ 5.19 ± 0.68
896
+ 0.001
897
+ Table 5: GHQ scores (Wilcoxon signed ranks test)
898
+
899
+ Before
900
+ After
901
+ P value
902
+ Before
903
+ After
904
+ P value
905
+
906
+ Means±SD
907
+ Means±SD
908
+
909
+ Means±SD
910
+ Means±SD
911
+
912
+ Y
913
+ Y
914
+
915
+ PE
916
+ PE
917
+ SS
918
+ 0.57 ± 0.91
919
+ 0.29 ± 0.65
920
+ <0.001
921
+ 0.41 ± 0.80
922
+ 0.11 ± 0.32
923
+ 0.001
924
+ AI
925
+ 0.61 ± 0.92
926
+ 0.08 ± 0.38
927
+ <0.001
928
+ 0.49 ± 0.90
929
+ 0.18 ± 0.74
930
+ 0.011
931
+ SF
932
+ 0.60 ± 0.91
933
+ 0.15 ± 0.39
934
+ <0.001
935
+ 0.60 ± 0.99
936
+ 0.23 ± 0.52
937
+ 0.001
938
+ SP
939
+ 0.44 ± 0.73
940
+ 0.22 ± 0.58
941
+ 0.017
942
+ 0.52 ± 0.65
943
+ 0.15 ± 0.42
944
+ <0.001
945
+ TH
946
+ 2.22 ± 2.48
947
+ 0.74 ± 1.21
948
+ <0.001
949
+ 2.02 ± 2.78
950
+ 0.68 ± 1.28
951
+ <0.001
952
+ SS: Somatic symptoms; AI: Anxiety and insomnia; SF: Social dysfunction; SP: Severe depression; TH: Total health
953
+ SS: Somatic symptoms; AI: Anxiety and insomnia; SF: Social dysfunction; SP: Severe depression; TH: Total health
954
+ Effect of Yoga on Gunas and Health
955
+ [Downloaded free from http://www.ijoy.org.in on Tuesday, August 18, 2009]
956
+ International Journal of Yoga
957
+
958
+ !
959
+
960
+ Vol. 1:1
961
+
962
+ !
963
+
964
+ Jan-Jun-2008
965
+ 8
966
+ Deshpande S, et al.
967
+ sense of self importance, desire for sense gratification,
968
+ little interest in spiritual elevation, dissatisfaction
969
+ with one’s position, envy of others and a materialistic
970
+ cleverness.[33] With further growth and mastery, one moves
971
+ into Sattva–a dominance which includes the qualities of
972
+ truthfulness, stability, discipline, sense of control, sharp
973
+ intelligence, preference for vegetarianism, truthfulness,
974
+ gravity, dutifulness, detachment, respect for superiors
975
+ and staunch determination[21] and stability in the face of
976
+ adversity and also conscious action. Thus, we can see
977
+ that although both Rajas and Tamas have both positive
978
+ and negative qualities, they are the manifestation of a
979
+ violent state of mind in which a person lacks mastery
980
+ over upsurges of emotions and impulsive behaviour.[33]
981
+ Most of the qualities of Sattva which are manifestation
982
+ of a calm state of mind are achievable by different
983
+ yoga techniques (physical postures, pranayama and/
984
+ or meditation) meant for mastery over the mind-body
985
+ complex.[34] Several earlier studies have independently
986
+ corroborated these notions. It has been shown that self
987
+ esteem as well as the sense of control and determination
988
+ improved after meditation.[35] Reduction in crime rate
989
+ after transcendental meditation (TM) supported the
990
+ effect of a calm state of mind on social health.[36] These
991
+ positive effects also show up as better perception and
992
+ memory as well as better motor performance (dexterity
993
+ and coordination tests).[37] Better academic performance
994
+ has also been documented.[38]
995
+ Although in this study, Yoga has shown a better effect
996
+ on the Sattva guna than PE with a better effect size, the
997
+ main difference between Y and PE practices seems to
998
+ be the effect on rajas guna. The reduction in this guna
999
+ was significantly higher after PE than after Y (this group
1000
+ difference was in males and juniors). The scores for Tamas
1001
+ Table 7: Gender-based GHQ scores (Wilcoxon signed ranks test)
1002
+
1003
+
1004
+ Before
1005
+ After
1006
+
1007
+ Before
1008
+ After
1009
+
1010
+
1011
+ Means±SD
1012
+ Means±SD
1013
+
1014
+ Means±SD
1015
+ Means±SD
1016
+
1017
+
1018
+ Y
1019
+ Y
1020
+ P value
1021
+ PE
1022
+ PE
1023
+ P value
1024
+ Females
1025
+ SS
1026
+ 0.50 ± 0.99
1027
+ 0.25 ± 0.58
1028
+ 0.115
1029
+ 0.40 ± 0.74
1030
+ 0.07± 0.27
1031
+ 0.018
1032
+
1033
+ AI
1034
+ 0.50 ± 0.85
1035
+ 0.02± 0.16
1036
+ 0.001
1037
+ 0.57 ± 0.98
1038
+ 0.30 ± 1.04
1039
+ 0.208
1040
+
1041
+ SF
1042
+ 0.40 ± 0.81
1043
+ 0.10 ± 0.30
1044
+ 0.038
1045
+ 0.45 ± 0.81
1046
+ 0.15 ± 0.36
1047
+ 0.038
1048
+
1049
+ SP
1050
+ 0.35 ± 0.62
1051
+ 0.28 ± 0.72
1052
+ 0.584
1053
+ 0.50 ± 0.85
1054
+ 0.10 ± 0.45
1055
+ 0.005
1056
+
1057
+ TH
1058
+ 1.71 ± 2.35
1059
+ 0.65 ± 1.03
1060
+ 0.01
1061
+ 1.93 ± 2.80
1062
+ 0.70 ± 1.44
1063
+ 0.018
1064
+ Males
1065
+ SS
1066
+ 0.64 ± 0.85
1067
+ 0.32 ± 0.69
1068
+ 0.027
1069
+ 0.43 ± 0.85
1070
+ 0.15± 0.36
1071
+ 0.022
1072
+
1073
+ AI
1074
+ 0.70 ± 0.98
1075
+ 0.13± 0.49
1076
+ <0.001
1077
+ 0.43 ± 0.83
1078
+ 0.08± 0.28
1079
+ 0.007
1080
+
1081
+ SF
1082
+ 0.77 ± 0.96
1083
+ 0.19 ± 0.45
1084
+ <0.001
1085
+ 0.72 ± 1.12
1086
+ 0.30 ± 0.62
1087
+ 0.009
1088
+
1089
+ SP
1090
+ 0.51 ± 0.80
1091
+ 0.17 ± 0.43
1092
+ 0.008
1093
+ 0.53 ± 0.86
1094
+ 0.13 ± 0.40
1095
+ <0.001
1096
+
1097
+ TH
1098
+ 2.62 ± 2.53
1099
+ 0.81 ± 1.36
1100
+ <0.001
1101
+ 2.11 ± 2.78
1102
+ 0.66 ± 1.15
1103
+ <0.001
1104
+ also decreased significantly in seniors of both groups
1105
+ (females in Y and males in PE groups) with the effect
1106
+ size being higher in the PE than in the Y groups. Thus,
1107
+ significantly greater reductions in Rajas and Tamas were
1108
+ worthy of note with PE than with Y. This positive effect
1109
+ of PE in reducing Rajas and Tamas adds to the fund of
1110
+ knowledge about several psycho-physiological benefits
1111
+ of PE. Hence, it appears that physical practices are more
1112
+ effective in reducing the limitations of Rajas and Tamas
1113
+ such as lack of mastery over upsurges of emotions and
1114
+ impulsive behavior, while yoga improves the softer
1115
+ qualities of Sattva. The mechanism of how physical
1116
+ exercises may reduce Rajas and tamas and how yoga may
1117
+ increase Sattva needs to be investigated by further studies.
1118
+ Thus, we may conclude that both physical activity (to
1119
+ reduce Rajas and Tamas) and Yoga (to improve Sattva)
1120
+ may be recommended for the harmonious promotion of
1121
+ personality.
1122
+ The GHQ showed significant differences within groups
1123
+ in all domains in both groups. There was a significant
1124
+ difference in SS between the Y and PE groups (Mann
1125
+ Whitney Test).
1126
+ Observations by Atlantis et al. on the efficacy of physical
1127
+ exercise practised for eight weeks in a population of
1128
+ Australian employees showed that the intervention
1129
+ significantly improved the Quality of Life as compared to a
1130
+ waiting list control group (measured by SF-36). They have
1131
+ shown an improvement of 12.8% in physical functioning,
1132
+ 9.90% in general health, 44.50% in vitality and 15.90% in
1133
+ mental health scores.[29] The significantly better reduction
1134
+ in SS in the Yoga group in our study may be due to deeper
1135
+ rest and relaxation obtained in Yoga.
1136
+ TABLE 8: Comparison between our data (before and after) and standard VPI data
1137
+
1138
+ n
1139
+ Observed range
1140
+ Observed mean±SD
1141
+ n
1142
+ Predicted range
1143
+ Predicted mean±SD
1144
+ Sattva
1145
+
1146
+ 3.04 - 6.17
1147
+ 4.90±0.53
1148
+
1149
+ 3.00 - 6.39
1150
+ 4.67±0.75
1151
+ Rajas
1152
+ 174
1153
+ 2.11 - 5.25
1154
+ 3.76±0.63
1155
+ 247
1156
+ 2.46 - 5.96
1157
+ 4.07±1.08
1158
+ Tamas
1159
+
1160
+ 1.47 - 5.38
1161
+ 3.19±0.60
1162
+
1163
+ 1.43 - 6.00
1164
+ 3.49±0.90
1165
+ SS: Somatic symptoms; AI: Anxiety and insomnia; SF: Social dysfunction; SP: Severe depression; TH: Total health
1166
+ [Downloaded free from http://www.ijoy.org.in on Tuesday, August 18, 2009]
1167
+ 9
1168
+ International Journal of Yoga
1169
+
1170
+ !
1171
+
1172
+ Vol. 1:1
1173
+
1174
+ !
1175
+
1176
+ Jan-Jun-2008
1177
+ Effect of Yoga on Gunas and Health
1178
+ The results of the study seem to point out clear differences
1179
+ between Y and PE on VPI whereas differences between Y
1180
+ and PE are not found in most domains of GHQ (except SS).
1181
+ Hence, although GHQ is a good measure of the various
1182
+ aspects of health and disease, VPI seems to be a better
1183
+ measure to differentiate the effects of Y and PE.
1184
+ In summary, this randomized, prospective, single-blind,
1185
+ comparative study has shown the efficacy of both Y and
1186
+ PE in improving all components of general health. While
1187
+ physical exercise has reduced Rajas and Tamas, the yogic
1188
+ practice has increased Sattva. Hence, yoga which is more
1189
+ traditionally practised in India and cost-effective, can be
1190
+ recommended with additional benefits of promotion of
1191
+ the Sattva guna.
1192
+ The strength of our design is a PE intervention matched
1193
+ with the integrated Y module. The study population was
1194
+ taken from different parts of Bangalore from different
1195
+ socioeconomic classes of the city. The improvement
1196
+ observed in both groups after eight weeks of intervention
1197
+ in all variables in both groups not only provides hitherto
1198
+ undemonstrated evidence of the efficacy of physical
1199
+ activity in a normal South Indian adult population but
1200
+ also shows that yoga could be an equally effective tool.
1201
+ This study also brings out the subtle differences in
1202
+ the efficacy of the two interventions (Y or PE). It also
1203
+ points out the utility of the VPI as a tool for measuring
1204
+ the subtle dimensions of guna described in traditional
1205
+ texts of yoga that can measure the steps of growth of
1206
+ an individual.
1207
+ ACKNOWLEDGMENTS
1208
+ Our grateful acknowledgements for all who helped in this project.
1209
+ We are grateful to SVYASA for supporting this study. We thank
1210
+ the volunteers, teachers and supporters who participated in
1211
+ this study.
1212
+ REFERENCES
1213
+ 1.
1214
+ Dhirendra B. Yoga for life and living. Central Research Institute for Yoga:
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1219
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1296
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1298
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1299
+ 33. Nagendra HR. The secret of action. 1st ed. SVYP: Bangalore; 2003.
1300
+ 34. Holt WR, Caruso JL, Riley JB. Transcendental Meditation vs pseudo-meditation
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+ on visual choice reaction time. Percept Motor Skills 1978;46:726.
1302
+ 35. Alexander CN, Robinson P, Rainforth M. Treating and preventing alcohol,
1303
+ nicotine and drug abuse through transcendental meditation: A review and
1304
+ statistical meta-analysis. Alcoholism Treatment Quarterly 1994;11:1-2,
1305
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1306
+ [Downloaded free from http://www.ijoy.org.in on Tuesday, August 18, 2009]
1307
+ International Journal of Yoga
1308
+
1309
+ !
1310
+
1311
+ Vol. 1:1
1312
+
1313
+ !
1314
+
1315
+ Jan-Jun-2008
1316
+ 10
1317
+ 36. Abrams AI. Transcendental meditation and rehabilitation at Folsom prison:
1318
+ Response to a critique. Criminal Justice Behav 1979;6:13-21.
1319
+ 37. Dillbeck MC, Orme-Johnson DW. Physiological differences between
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+ transcendental meditation and rest. Am Psychol 1987;42:879-81.
1321
+ 38. Kember P. The Transcendental Meditation technique and postgraduate
1322
+ academic performance. Br J Educ Psychol 1985;55:164-6.
1323
+ Effect of Yoga on Gunas and Health
1324
+ [Downloaded free from http://www.ijoy.org.in on Tuesday, August 18, 2009]
subfolder_0/A randomized trial comparing effect of yoga and exercises on quality of life in among nursing population with chronic low back pain.txt ADDED
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1
+ © 2018 International Journal of Yoga | Published by Wolters Kluwer ‑ Medknow
2
+ 208
3
+ Introduction
4
+ Nursing profession is the largest chunk
5
+ of health‑care professionals.[1] Physical,
6
+ psychological,
7
+ and
8
+ psychosocial
9
+ challenges contribute to musculoskeletal
10
+ disorders among nurses. Chronic low
11
+ back pain (CLBP) is the most common
12
+ musculoskeletal disorder among the nurses.
13
+ It is reported that 63%–86% of nursing
14
+ professionals suffer from LBP in their
15
+ lifetime.[1,2] CLBP in nurses is multifactorial,
16
+ and the risk factors pertain to lifestyle,
17
+ physical,
18
+ psychological,
19
+ psychosocial,
20
+ and occupational domains, namely, age,
21
+ gender, physical status, smoking, workplace
22
+ stress, awkward postures, poor ergonomics,
23
+ carrying and repositioning of patients,
24
+ prolonged standing, night shifts, working
25
+ without sufficient breaks, and psychological
26
+ stress are important causative/risk factors
27
+ for CLBP in nurses. Nurses are required
28
+ to lift and transport patients or equipment,
29
+ often in difficult environment particularly
30
+ Address for correspondence:
31
+ Assoc. Prof and Head.
32
+ Nitin J Patil,
33
+ Department of Integrative
34
+ Medicine, Sri Devaraj Urs
35
+ Academy of Higher Education
36
+ and Research, Kolar - 563 103,
37
+ Karnataka, India.
38
+ E-mail: [email protected]
39
+ Abstract
40
+ Background: Chronic low back pain  (CLBP) adversely affects quality of life  (QOL) in nursing
41
+ professionals. Integrated yoga has a positive impact on CLBP. Studies assessing the effects of
42
+ yoga on CLBP in nursing population are lacking. Aim: This study was conducted to evaluate the
43
+ effects of integrated yoga and physical exercises on QOL in nurses with CLBP. Methods: A  total
44
+ of 88 women nurses from a tertiary care hospital of South India were randomized into yoga group
45
+ (n = 44; age – 31.45 ± 3.47 years) and physical exercise group (n = 44; age – 32.75 ± 3.71 years).
46
+ Yoga group was intervened with integrated yoga therapy module practices, 1 h/day and 5 days a week
47
+ for 6 weeks. Physical exercise group practiced a set of physical exercises for the same duration. All
48
+ participants were assessed at baseline and after 6 weeks with the World Health Organization Quality
49
+ of Life‑brief  (WHOQOL‑BREF) questionnaire. Results: Data were analyzed by Paired‑samples
50
+ t‑test and Independent‑samples t‑test for within‑ and between‑group comparisons, respectively, using
51
+ the Statistical Package for the Social Sciences  (SPSS). Within‑group analysis for QOL revealed a
52
+ significant improvement in physical, psychological, and social domains  (except environmental
53
+ domain) in both groups. Between‑group analysis showed a higher percentage of improvement in
54
+ yoga as compared to exercise group except environmental domain. Conclusions: Integrated yoga
55
+ was showed improvements in physical, psychological, and social health domains of QOL better than
56
+ physical exercises among nursing professionals with CLBP. There is a need to incorporate yoga as
57
+ lifestyle intervention for nursing professionals.
58
+ Keywords: Exercises, low back pain, nurses, quality of life, yoga
59
+ A Randomized Trial Comparing Effect of Yoga and Exercises on Quality of
60
+ Life in among nursing population with Chronic Low Back Pain
61
+ Original Article
62
+ Nitin J Patil,
63
+ Nagaratna R1,
64
+ Padmini Tekur2,
65
+ Manohar PV3,
66
+ Hemant Bhargav4,
67
+ Dhanashri Patil
68
+ Department of Integrative
69
+ Medicine, Sri Devaraj Urs
70
+ Academy of Higher Education
71
+ and Research, 3Department
72
+ of Orthopedics, Sri Devaraj
73
+ Urs Medical College,
74
+ Kolar, 1Medical Director,
75
+ Arogyadhama, S-VYASA
76
+ Yoga University, 2Division
77
+ of Yoga and Life Sciences,
78
+ S-VYASA Yoga University,
79
+ 4Integrated Centre for Yoga
80
+ (NICY), NIMHANS, Bengaluru,
81
+ Karnataka, India
82
+ in developing nations where lifting aids are
83
+ not always available or practicable. These
84
+ multiple factors contribute toward higher
85
+ prevalence of CLBP in this population.[3]
86
+ CLBP is one of the main concerns, which
87
+ negatively impacts the quality of life (QOL)
88
+ leading to reduced work productivity,
89
+ absenteeism,
90
+ and
91
+ disabilities
92
+ among
93
+ nurses.[4] Harrington and Gill stated that
94
+ LBP is the most common cause of early
95
+ retirement on grounds of ill health, sickness
96
+ absenteeism, job changes, and a fall in the
97
+ work speed among the working population.
98
+ Especially for young nurses, the mental
99
+ demands of work have a critical influence
100
+ on their QOL and workability.[5]
101
+ QOL
102
+ measurements
103
+ are
104
+ being
105
+ used
106
+ increasingly relevant in the evaluation of
107
+ disease progression, treatment, and the
108
+ management of musculoskeletal disorders.
109
+ QOL is recognized as a concept representing
110
+ individual
111
+ responses
112
+ to
113
+ the
114
+ physical,
115
+ mental, and social effects of illness on daily
116
+ Access this article online
117
+ Website: www.ijoy.org.in
118
+ DOI: 10.4103/ijoy.IJOY_2_18
119
+ Quick Response Code:
120
+ How to cite this article: Patil NJ, Nagaratna R, Tekur P,
121
+ Manohar PV, Bhargav H, Patil D. A randomized trial
122
+ comparing effect of yoga and exercises on quality of
123
+ life in among nursing population with chronic low back
124
+ pain. Int J Yoga 2018;11:208-14.
125
+ Received: January, 2018. Accepted: April, 2018.
126
+ This is an open access journal, and articles are distributed under
127
+ the terms of the Creative Commons Attribution-NonCommercial-
128
+ ShareAlike 4.0 License, which allows others to remix, tweak, and
129
+ build upon the work non-commercially, as long as appropriate
130
+ credit is given and the new creations are licensed under the
131
+ identical terms.
132
+ For reprints contact: [email protected]
133
+ Patil, et al.: Yoga for nurses with low back pain
134
+ International Journal of Yoga | Volume 11 | Issue 3 | September-December 2018
135
+ 209
136
+ living, which influences the extent of personal satisfaction
137
+ with life circumstances that can be achieved. Measuring
138
+ QOL is recognized as an important add‑on to objectify
139
+ clinical effectiveness in recent clinical trials.[6,7] CLBP is
140
+ a major deterrent for QOL, and the QOL scores correlate
141
+ with pain and disability of CLBP. Furthermore, QOL
142
+ correlated inversely with poor quality of sleep in nursing
143
+ population. Such multifactorial problems of CLBP demand
144
+ a multifaceted approach for management.[8‑10]
145
+ Yoga has emerged as a popular mind‑body therapy for
146
+ CLBP as suggested by emerging scientific literature across
147
+ the globe.[11] Yoga adopts a multifaceted approach utilizing
148
+ practices at body (postures), breath (breathing techniques),
149
+ and mind levels  (meditation and relaxation techniques),
150
+ respectively. According to national surveys, yoga practice
151
+ and research have increased exponentially and in the last
152
+ decade with over 10 million Americans practicing yoga for
153
+ health reasons in 2002 and over  13 million in 2007.[11‑13]
154
+ Literature review reveals that viniyoga, hatha yoga, Iyengar
155
+ yoga, and integrated yoga are the most commonly used
156
+ forms to treat LBP.[14‑16]
157
+ In a systematic review, Chou and Huffman concluded
158
+ that there was a fair evidence reflecting efficacy of
159
+ yoga therapy in subacute or CLBP.[17] In another similar
160
+ review
161
+ which
162
+ included
163
+ four
164
+ randomized
165
+ controlled
166
+ trials  (RCTs), it was observed that the intervention by
167
+ Iyengar yoga and viniyoga for a period of 12–24  weeks
168
+ was beneficial in CLBP.[15] Yet, another meta‑analysis
169
+ consisting of eight RCTs by Cramer et  al. found strong
170
+ evidence for short‑term effectiveness  (pain, back‑specific
171
+ disability, and global improvement parameters) and
172
+ moderate evidences (back‑specific disability) for long‑term
173
+ effectiveness of yoga on CLBP. Yoga was not found to be
174
+ associated with serious adverse events.[18]
175
+ A study by Tekur et  al. had observed usefulness of yoga
176
+ intervention in improving QOL in patients with CLBP.
177
+ However, this study was used in general population with
178
+ intense residential yoga intervention. We did not come
179
+ across any study that has assessed the same in nursing
180
+ population with an OPD or outdoor setup intervention
181
+ (1 h/day). As discussed earlier, nursing population is more
182
+ prone for CLBP due to specific demands of the occupation.
183
+ Thus, the present randomized controlled study was planned
184
+ to compare the effect of integrated yoga and physical
185
+ exercise of similar intensity on QOL of nurses suffering
186
+ from LBP.
187
+ Methods
188
+ Subjects
189
+ This study was conducted among nursing population,
190
+ who were diagnosed by an orthopedician to be suffering
191
+ from CLBP. Participants were working in the tertiary
192
+ care teaching hospital in Kolar district of Karnataka state
193
+ in India. They were randomly divided into two groups:
194
+ yoga (n  =  44; age  –  31.45  ±  3.47  years) and physical
195
+ exercise (n = 44; age – 32.75 ± 3.71 years) using random
196
+ number generator  (www.randomizer.org). Participants in
197
+ the two groups did not differ much in relation to their age,
198
+ education, or duration of illness between the groups as
199
+ shown in Table 1.
200
+ Two groups’ randomized controlled single‑blind design was
201
+ followed with participants from both the groups (yoga and
202
+ exercise) receiving intervention for 6  weeks. Assessments
203
+ for QOL were performed at two points of time at baseline
204
+ and after 6 weeks of interventions. The statistician and the
205
+ interviewer were unaware of the allocation status of the
206
+ participants.
207
+ The inclusion requirements were as follows:  (a) female
208
+ nurses with diagnosis of either nonspecific LBP, lumbar
209
+ spondylosis, or intervertebral disc prolapse, suffering
210
+ from LBP for 3  months or more as diagnosed by an
211
+ orthopedician and  (b) knowledge of English, Hindi,
212
+ and Kannada language. The exclusion criteria were as
213
+ follows:  (a) pain due to organic causes such as infective
214
+ and inflammatory conditions, metabolic disorders, and
215
+ posttraumatic condition,  (b) patients with degenerative
216
+ disorders of muscles,  (c) patients with comorbid cardiac
217
+ or neuropsychiatric illness,  (d) history of major surgery
218
+ or injury in the past, (e) pregnant women, and (f) patients
219
+ with neurological complications of CLBP.
220
+ Written informed consent was taken from all the
221
+ participants before the study and Institutional Ethical
222
+ Clearance was obtained.
223
+ Study profile
224
+ From January 2015 to December 2016, nurses were
225
+ screened and referred by the orthopedician. Out of 176
226
+ nurses referred for the study, 88 satisfied the study criteria.
227
+ Table 1: Sociodemographic and clinical variables
228
+ comparison between yoga and exercises
229
+ Variables
230
+ Yoga
231
+ Exercises
232
+ Number of participants (only female)
233
+ 44
234
+ 44
235
+ Age (mean±SD)
236
+ 31.45±3.47
237
+ 32.75±3.71
238
+ Education
239
+ ANM
240
+ 8
241
+ 3
242
+ GNM
243
+ 28
244
+ 32
245
+ Bachelor of nursing
246
+ 8
247
+ 9
248
+ CLBP
249
+ 3 months‑1 year
250
+ 34
251
+ 37
252
+ >1 year
253
+ 10
254
+ 07
255
+ Causes
256
+ Nonspecific/muscle spasm
257
+ 37
258
+ 35
259
+ Lumbar spondylosis
260
+ 6
261
+ 3
262
+ Intervertebral disc prolapse
263
+ 4
264
+ 3
265
+ SD=Standard deviation, ANM=Auxiliary nursing midwifery,
266
+ GNM=General nursing midwifery, CLBP=Chronic low back pain
267
+ Patil, et al.: Yoga for nurses with low back pain
268
+ International Journal of Yoga | Volume 11 | Issue 3 | September-December 2018
269
+ 210
270
+ Informed consent was obtained. Baseline assessments
271
+ were done, and they were randomly allocated to yoga
272
+ (n  =  44) and control  (n  =  44) groups. They underwent
273
+ intervention  (either integrated yoga or physical exercise)
274
+ for 6  weeks; repeat assessments were performed on both
275
+ groups. There were no dropouts in the study. Figure  1
276
+ provides a flow diagram of the study profile.
277
+ Materials
278
+ Assessment
279
+ The World Health Organization Quality of Life‑brief
280
+ (WHOQOL‑BREF) questionnaire English and Kannada
281
+ version was used to assess the QOL of the participants.
282
+ WHOQOL‑BREF developed by the WHO is a standardized
283
+ comprehensive
284
+ instrument
285
+ for
286
+ assessment
287
+ of
288
+ QOL
289
+ comprising 26 items. The scale provides a measure of
290
+ an individual’s perception of QOL on four domains:
291
+ (1) physical health  (seven items),  (2) psychological
292
+ health  (six items),  (3) social relationships  (three items),
293
+ and  (4) environmental health  (eight items). In addition, it
294
+ also includes two questions for “overall QOL” and “general
295
+ health” facets. The domain scores are scaled in a positive
296
+ direction (i.e., higher scores denote higher QOL). The range
297
+ of scores is 4–20 for each domain. The internal consistency
298
+ of WHOQOL‑BREF ranged from 0.66 to 0.87 (Cronbach’s
299
+ alpha coefficient). The scale has been found to have good
300
+ discriminant validity. It has good test–retest reliability and
301
+ is recommended for use in health surveys and to assess the
302
+ efficacy of any intervention at suitable intervals according
303
+ to the need of the study.[19,20]
304
+ Intervention
305
+ Integrated approach of yoga therapy  (IAYT) is based on
306
+ the basic principle that there are five layers of the existence
307
+ to human beings, namely, Annamaya Kosa  (physical
308
+ level), Pranamaya Kosa  (subtle energy level), Manomaya
309
+ Kosa (emotional level), Vijnanamaya Kosa  (level of
310
+ intellect), and Anandamaya Kosa  (level of bliss). Yogic
311
+ pathophysiology propounds that the disturbances at the
312
+ emotional level  (adhi) percolate to the physical level
313
+ (vyadhi) through the layer of prana. Furthermore, all layers
314
+ are interrelated and they affect each other indirectly. The
315
+ IAYT is an approach which consists in not only dealing
316
+ with physical layer but also includes using techniques to
317
+ operate on different layers of our existence. The practices
318
+ at body level  (Annamaya Kosa) include yogasanas,
319
+ loosening practices, at subtle energy level  (Pranamaya
320
+ Kosa) include breathing practices and pranayama, and
321
+ at the mind level  (Manomaya Kosa) are meditations and
322
+ relaxation techniques.
323
+ A 1‑h integrated yoga therapy module  (IYTM) was
324
+ designed after reviewing the literature in the field of yoga
325
+ and LBP by utilizing the components of yoga at the body,
326
+ subtle energy, and mind level, respectively. The designed
327
+ IYTM was validated by subject experts.[21] Tekur et  al.
328
+ used as a similar intervention in an earlier study.[22] This
329
+ yoga module was practiced 5 days a week for 6 weeks. The
330
+ details of yoga practice are provided in Table 2.
331
+ Self and physician refered nursing professionals with CLBP
332
+ (Recruitment Period : January 2015 to December 2016)
333
+ Assessed for Inclusion and Exclusion criteria,
334
+ Obtained informed consent form
335
+ Randomly allocatted to Yoga and Exercise group
336
+ Outcome measures were assessed at baseline for All 88 subjects
337
+ Group 1 - Yoga; n = 44
338
+ Group 2 Exercise; n = 44
339
+ Intervention: 1 Month (1 Hour per Day / 5 Days a week)
340
+ Group1 - IYTM for CLBP
341
+ Group 2 - Physical Exercise
342
+ Assessement of outcome measures were repeated
343
+ Statistical Analysis
344
+ Report writting
345
+ Figure 1: Trail profile
346
+ Table 2: Intervention: Integrated yoga therapy module
347
+ versus physical exercises
348
+ List of practices in IYTM for CLBP List of physical exercises
349
+ Supta udarakarshanasana (folded leg
350
+ lumbar stretch)
351
+ Standing hamstring stretch
352
+ Shava udarakarshanasana (crossed leg
353
+ lumbar stretch)
354
+ Cat and camel
355
+ Pavanamuktasana
356
+ (wind‑releasing pose)
357
+ Pelvic tilt
358
+ Setu bandhasana breathing (bridge
359
+ pose lumbar stretch)
360
+ Partial curl
361
+ Vyaghrasana (tiger breathing)
362
+ Piriformis stretch
363
+ Bhujangasana (serpent pose)
364
+ Extension exercise
365
+ Shalabhasana breathing (locust pose)
366
+ Quadriceps leg raising
367
+ Uttanapadasana (straight leg raise pose) Trunk rotation
368
+ Ardha kati chakrasana (lateral arc pose) Double knee to chest
369
+ Ardha chakrasana (half wheel pose)
370
+ Bridging
371
+ Quick relaxation techniques
372
+ Hook lying march
373
+ Nadi shuddhi (alternate nostril
374
+ breathing)
375
+ Single knee to chest stretch
376
+ Bhramari (humming bee breath)
377
+ Lumbar rotation
378
+ Nadanusandhana (A, U, M, AUM
379
+ chanting)
380
+ Press up
381
+ Deep relaxation technique
382
+ Curl ups
383
+ Laghoo shankhaprakshalana (yogic
384
+ colon cleansing) (weekly once)
385
+ IYTM=Integrated yoga therapy module, CLBP=Chronic low
386
+ back pain
387
+ Patil, et al.: Yoga for nurses with low back pain
388
+ International Journal of Yoga | Volume 11 | Issue 3 | September-December 2018
389
+ 211
390
+ Control group intervention
391
+ Control group practiced physical exercise of similar
392
+ intensity as IYTM for the same duration and frequency
393
+ as shown in Table  2 provides the details of control
394
+ intervention.
395
+ Data collection
396
+ Data were taken at the same time of the day on
397
+ the 1st and 43rd day. Orientation to yoga program was given
398
+ to the participants for 3  days, and then on the next day,
399
+ predata collection was done after satisfactory performance.
400
+ WHOQOL‑BREF assessments were done on day 1 and
401
+ day 43 (after 6  weeks). A  trained psychologist assisted in
402
+ data collection.
403
+ Data analysis
404
+ Statistical Package for the Social Sciences (SPSS) - (Version
405
+ 21.0., Armonk, NY: IBM Corp.) was used for all analyses.
406
+ Data of all four domains were normally distributed on
407
+ Shapiro–Wilk test. Hence, the parametric tests were used.
408
+ “Paired‑samples t‑test” and “Independent‑samples t‑test”
409
+ were used to analyze within‑  and between‑group data,
410
+ respectively.
411
+ Results
412
+ Within‑group comparisons in yoga group
413
+ Within‑group pre‑  and postcomparison showed that,
414
+ after the yoga intervention, there was a significant
415
+ improvement in three domains of WHOQOL‑BREF,
416
+ namely, physical (P  <  0.01), psychological  (P  <  0.01),
417
+ and social  (P  <  0.01) with a trend of insignificant
418
+ positive impact in environmental domain  (P  =  0.07)
419
+ [Table 3].
420
+ Within‑group comparisons in exercise group
421
+ Similar to yoga group, exercise group also showed a
422
+ significant improvement in three domains, namely, physical
423
+ (P < 0.01), psychological (P < 0.01), and social (P < 0.01)
424
+ with no significant difference in the environmental domain
425
+ (P = 0.95) [Table 4].
426
+ Between‑group comparisons in yoga versus control
427
+ group
428
+ Preintervention data
429
+ There was a no significant difference between the
430
+ yoga and control groups at the baseline for all the four
431
+ domains of WHOQOL‑BREF:  (a) physical  (P  =  0.296),
432
+ (b) psychological  (P  =  0.987),  (c) social  (P  =  0.661), and
433
+ (d) environmental (P = 0.904) as shown in Table 5.
434
+ Postintervention data
435
+ There was a significant difference between the yoga and
436
+ control groups after the intervention in the following
437
+ domains of WHOQOL‑BREF:  (a) physical  (P  <  0.01),
438
+ (b) psychological  (P  <  0.01), and  (c) social  (P  <  0.01)
439
+ with the scores of yoga group being higher than
440
+ those of the control group for all the three domains,
441
+ respectively.
442
+ There
443
+ was
444
+ no
445
+ significant
446
+ difference
447
+ between
448
+ the
449
+ groups
450
+ for
451
+ environmental
452
+ domains
453
+ (P = 0.249).
454
+ Table 3: Within yoga group (pre and post) comparison of
455
+ World Health Organization Quality of Life‑BREF scores
456
+ Variables
457
+ Pre/
458
+ post
459
+ Yoga group
460
+ Mean±SD
461
+ Percentage change
462
+ P
463
+ Physical
464
+ domain QOL
465
+ Pre
466
+ 41.27±6.603
467
+ 44.12
468
+ <0.001
469
+ Post
470
+ 59.48±9.041
471
+ Psychological
472
+ domain QOL
473
+ Pre
474
+ 34.91±5.356
475
+ 97.07
476
+ <0.001
477
+ Post
478
+ 68.80±13.428
479
+ Social domain
480
+ QOL
481
+ Pre
482
+ 43.07±12.705
483
+ 55.02
484
+ <0.001
485
+ Post
486
+ 66.77±12.004
487
+ Environmental
488
+ domain QOL
489
+ Pre
490
+ 55.70±5.325
491
+ 2.81
492
+ 0.078
493
+ Post
494
+ 57.27±6.028
495
+ QOL=Quality of life, SD=Standard deviation
496
+ Table 4: Within exercise group (pre and post)
497
+ comparison of World Health Organization Quality of
498
+ Life‑BREF scores
499
+ Variables
500
+ Pre/
501
+ post
502
+ Exercise group
503
+ Mean±SD
504
+ Percentage change
505
+ P
506
+ Physical
507
+ domain QOL
508
+ Pre
509
+ 39.82±6.377
510
+ 25.33
511
+ <0.005
512
+ Post
513
+ 49.91±8.575
514
+ Psychological
515
+ domain QOL
516
+ Pre
517
+ 34.93±7.315
518
+ 20.89
519
+ <0.001
520
+ Post
521
+ 42.23±7.358
522
+ Social domain
523
+ QOL
524
+ Pre
525
+ 44.09±8.757
526
+ 14.49
527
+ <0.001
528
+ Post
529
+ 50.48±8.609
530
+ Environmental
531
+ domain QOL
532
+ Pre
533
+ 55.84±5.278
534
+ 0.089
535
+ 0.957
536
+ Post
537
+ 55.89±5.136
538
+ QOL=Quality of life, SD=Standard deviation
539
+ Table 5: Between group (yoga vs. exercise) comparison
540
+ of World Health Organization Quality of Life‑BREF
541
+ scores
542
+ Variables
543
+ Pre/post
544
+ Group
545
+ Mean±SD
546
+ P
547
+ Physical
548
+ domain QOL
549
+ Pre
550
+ Yoga
551
+ 41.27±6.60
552
+ 0.296
553
+ Pre
554
+ Exercise
555
+ 39.82±6.34
556
+ Post
557
+ Yoga
558
+ 59.48±9.04
559
+ <0.005
560
+ Post
561
+ Exercise
562
+ 49.91±8.57
563
+ Psychological
564
+ domain QOL
565
+ Pre
566
+ Yoga
567
+ 34.91±5.36
568
+ 0.987
569
+ Pre
570
+ Exercise
571
+ 34.93±7.31
572
+ Post
573
+ Yoga
574
+ 68.80±13.43
575
+ <0.001
576
+ Post
577
+ Exercise
578
+ 42.23±7.36
579
+ Social domain
580
+ QOL
581
+ Pre
582
+ Yoga
583
+ 43.07±12.70
584
+ 0.661
585
+ Pre
586
+ Exercise
587
+ 44.09±8.76
588
+ Post
589
+ Yoga
590
+ 66.77±12.00
591
+ <0.001
592
+ Post
593
+ Exercise
594
+ 50.48±8.61
595
+ Environmental
596
+ domain QOL
597
+ Pre
598
+ Yoga
599
+ 55.70±5.33
600
+ 0.904
601
+ Pre
602
+ Exercise
603
+ 55.84±5.28
604
+ Post
605
+ Yoga
606
+ 57.27±6.03
607
+ 0.249
608
+ Post
609
+ Exercise
610
+ 55.89±5.14
611
+ Patil, et al.: Yoga for nurses with low back pain
612
+ International Journal of Yoga | Volume 11 | Issue 3 | September-December 2018
613
+ 212
614
+ Discussion
615
+ At the end of 6 weeks of intervention as mentioned before,
616
+ we observed that both the groups showed significant
617
+ improvements in physical, psychological, and social
618
+ domains of WHOQOL‑BREF, whereas the environmental
619
+ domain did not show significant improvements in either
620
+ of the groups. As compared to the control group, patients
621
+ who
622
+ performed
623
+ yoga
624
+ reported
625
+ significantly
626
+ higher
627
+ scores on the psychological domain  (yoga  –  97.7% and
628
+ control – 20.89%). It was further observed that percentage
629
+ improvement in physical and social domains was higher
630
+ in the yoga group as compared to the exercise group
631
+ (physical domain: yoga  –  44.12% vs. control  –  25.33%;
632
+ and social domain: yoga – 55.02% vs. control – 14.49%).
633
+ Previously, Tekur et  al.[22] demonstrated the usefulness
634
+ of a 7  day intensive residential integrated yoga in
635
+ improving QOL in 80  patients with CLBP in a highly
636
+ controlled setting where patients were away from their
637
+ occupational and other duties. They observed a significant
638
+ improvement in all the four domains of WHOQOL‑BREF
639
+ in the yoga‑based lifestyle module as compared to physical
640
+ exercise‑based lifestyle change module. One of the
641
+ limitations with such trials is that they are not practical for
642
+ working young nursing population and difficult to replicate
643
+ such studies. In our study, we used 1‑h yoga program
644
+ which included all major components of yoga therapy,
645
+ namely, asanas, pranayama, and relaxation. The exercise
646
+ group also followed similar duration and frequency of
647
+ intervention. We also observed improvement in physical,
648
+ psychological, and social domains in both the groups
649
+ but not in the environmental domain. The percentage
650
+ improvements were higher in yoga group than the exercise
651
+ group for physical, psychological, and social domains,
652
+ respectively. This may be because the intervention offered
653
+ by Tekur et al. was much more intensive than ours and the
654
+ residential setup involved exposure to such an environment
655
+ which was significantly different from the workplace. We
656
+ performed this research in much more pragmatic setup and
657
+ observed similar outcomes.
658
+ Underplaying mechanism of integrated yoga therapy
659
+ module
660
+ The probable mechanism of action of yoga may be
661
+ through improvement of autonomic functions through
662
+ triggering
663
+ neurohormonal
664
+ mechanisms
665
+ that
666
+ suppress
667
+ sympathetic activity through downregulation of the
668
+ hypothalamic–pituitary–adrenal axis.[23] Mindfulness‑based
669
+ practices may also enhance cognitive flexibility, which may
670
+ further reduce stress, anxiety, and pain, thereby improving
671
+ QOL.[24] Furthermore, the cellular effects of mechanical
672
+ and fluid pressure on structures such as cartilage suggest
673
+ that yoga postures might alter joint function. Low levels of
674
+ intermittent fluid pressure, as occur during joint distraction,
675
+ have been shown in  vitro to decrease production of
676
+ catabolic cytokines, such as interleukin‑1 and tumor
677
+ necrosis factor.[25] Yoga may be one way to provide the
678
+ motion and forces on joints needed to preserve integrity. In
679
+ addition, pranayama, meditations, and relaxation techniques
680
+ following yogasanas help to relax joints and muscles,
681
+ reduce oxidative stress, and calm the mind.[26] This study
682
+ implicates a probable role of integrated yoga therapy in the
683
+ management of patients suffering from CLBP.
684
+ In a cross‑sectional study on 501 nurses from different
685
+ hospitals of Turkey, it was observed that there was a positive
686
+ correlation between QOL as assessed by WHOQOL‑BREF
687
+ and job satisfaction  (assessed using Short‑Form Minnesota
688
+ Questionnaire).[27] Similarly, another cross‑sectional study
689
+ on 435 female nurses from five regional centers in Taiwan
690
+ revealed that associations between scores on the sleep‑quality
691
+ and QOL scales were statistically significantly inversely
692
+ correlated.[28] Another survey on 1534 nursing professionals
693
+ from eight different hospitals in Taiwan found that improved
694
+ QOL of nurses translated into better workability (which may
695
+ indirectly contribute to better health‑care service delivery to
696
+ the patients).[29] In the above study, it was also observed that
697
+ mental demands of work were a critical influence on QOL
698
+ and workability, especially in young nursing professionals.
699
+ The authors further recommended countermeasures such as
700
+ enhancing the ability to cope with the job’s mental demands
701
+ for improving and maintaining the workability of nurses.
702
+ Yoga may be considered one such intervention which
703
+ has been found useful in enhancing the ability to cope
704
+ with mental demands and thereby improve QOL and
705
+ workability of nurses. An anonymous E‑mail survey
706
+ was conducted between April and June 2010 of North
707
+ American nurses interested in mind‑body training to
708
+ reduce stress.[30] Of the 342 respondents, 96% were women
709
+ and 92% were Caucasian. Most  (73%) reported one or
710
+ more health conditions, notably anxiety  (49%), back
711
+ pain  (41%), gastrointestinal problems such as irritable
712
+ bowel syndrome (34%), or depression (33%). Their median
713
+ occupational stress level was 4 (0 = none and 5 = extreme
714
+ stress). Nearly all  (99%) reported already using one or
715
+ more mind‑body practices to reduce stress. The most
716
+ common mind‑body practices used by the nurses were
717
+ as follows: intercessory prayer  (86%), breath‑focused
718
+ meditation  (49%), healing or therapeutic touch  (39%),
719
+ yoga/tai
720
+ chi/qi
721
+ gong 
722
+ (34%),
723
+ or
724
+ mindfulness‑based
725
+ meditation  (18%). The greatest expected benefits were for
726
+ greater spiritual well‑being (56%); serenity, calm, or inner
727
+ peace (54%); better mood (51%); more compassion (50%);
728
+ or better sleep (42%).[30]
729
+ Physical domain of WHOQOL‑BREF features such as
730
+ mobility, fatigue, pain, sleep, and work capacity. The higher
731
+ percentage of improvement in the yoga group compared to
732
+ exercises therapy group can be credited to better reduction in
733
+ pain and disability with improvement in spinal flexibility.[31]
734
+ Psychological domain features such as feelings, self‑esteem,
735
+ spirituality, thinking, learning, and memory. The higher
736
+ Patil, et al.: Yoga for nurses with low back pain
737
+ International Journal of Yoga | Volume 11 | Issue 3 | September-December 2018
738
+ 213
739
+ percentage of improvement in the yoga group compared to
740
+ exercises therapy group may be credited to better reduction
741
+ in stress, anxiety, and depression.[31,32]
742
+ Social domain of WHOQOL‑BREF features questions
743
+ relating to problems in interpersonal relationships and
744
+ social support. Yoga also acts like cognitive behavioral
745
+ therapy; this may be the reason for the superior impact of
746
+ yoga intervention compared to physical exercises in nurses
747
+ with CLBP.
748
+ Environmental domain deals with problems relating
749
+ to financial resources, physical safety, and physical
750
+ environment such as pollution, noise, and climate. As
751
+ working environment remained same throughout, this
752
+ might have been the reason, we did not able to notice any
753
+ significant changes in the environmental domain in both
754
+ the groups.
755
+ Thus, yoga appears to be an integrated therapeutic tool
756
+ and feasible intervention for improving QOL in nursing
757
+ professionals compared to physical exercise as it offers
758
+ holistic approach.
759
+ The strengths of the study are as follows:  (a) this
760
+ multidisciplinary study encompasses the fields of yogic
761
+ science, orthopedics, and psychology;  (b) a large sample
762
+ of 88 CLBP patients were enrolled for the study with
763
+ no dropouts,  (c) no earlier study has reported effect
764
+ of integrated yoga intervention on QOL of nurses
765
+ suffering from CLBP;  (d) because the study involved
766
+ a pragmatic approach, the acceptability and adherence
767
+ to therapy were good; and  (e) as yoga and control
768
+ program was delivered through a standard protocol,
769
+ it could be reproduced in the exact way for future
770
+ interventions.
771
+ This study has a few limitations, namely: this study was
772
+ a preliminary attempt to assess the response of nursing
773
+ population suffering from CLBP, and future studies
774
+ should incorporate more objective variables such as
775
+ electromyography, radio‑imaging, biochemical measures,
776
+ and other advanced objective variables of autonomic
777
+ functions.
778
+ Conclusions
779
+ IYTM improves physical, psychological, and social
780
+ health domains of QOL among nursing professionals with
781
+ CLBP more than the physical exercises. There is a need
782
+ to incorporate yoga as lifestyle intervention for nursing
783
+ professionals with CLBP.
784
+ Acknowledgments
785
+ We are thankful for the management of Sri Devaraj Urs
786
+ Academy of Higher Education and Research, Tamaka,
787
+ Kolar, India, for their support throughout. We acknowledge
788
+ the participants who gave their consent and participated
789
+ in this study. We acknowledge Dr. Ananta Bhattacharyya,
790
+ Dr.  Balaram Pradhan, and Mr. Ravishankar S. for their
791
+ support.
792
+ Financial support and sponsorship
793
+ Nil.
794
+ Conflicts of interest
795
+ There are no conflicts of interest.
796
+ References
797
+ 1.
798
+ Bls.gov. Registered Nurses Have Highest Employment in
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+ Healthcare Occupations; Anesthesiologists Earn the Most:
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+ The Economics Daily: U.S. Bureau of Labor Statistics; 2018.
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+ Available from: https://www.bls.gov/opub/ted/2015/registered‑nu
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+ rses‑have‑highest‑employment‑in‑healthcare-occupations‑anesthe
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+ siologists‑earn‑the‑most.htm. [Last accessed on 2018 Feb 22].
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+ Genç A, Kahraman  T, Göz E. The prevalence differences of
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+ © 2018. This work is published under
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+ Notwithstanding the ProQuest Terms and Conditions, you may use this content
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subfolder_0/Acute effects of 3G mobile phone radiations on frontal haemodynamics during a cognitive task in teenagers.txt ADDED
@@ -0,0 +1,1733 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Full Terms & Conditions of access and use can be found at
2
+ http://www.tandfonline.com/action/journalInformation?journalCode=iirp20
3
+ Download by: [14.139.155.82]
4
+ Date: 27 July 2016, At: 04:08
5
+ International Review of Psychiatry
6
+ ISSN: 0954-0261 (Print) 1369-1627 (Online) Journal homepage: http://www.tandfonline.com/loi/iirp20
7
+ Acute effects of 3G mobile phone radiations on
8
+ frontal haemodynamics during a cognitive task
9
+ in teenagers and possible protective value of Om
10
+ chanting
11
+ Hemant Bhargav, Manjunath N. K., Shivarama Varambally, A.
12
+ Mooventhan, Suman Bista, Deepeshwar Singh, Harleen Chhabra, Ganesan
13
+ Venkatasubramanian, Srinivasan T. M. & Nagendra H. R.
14
+ To cite this article: Hemant Bhargav, Manjunath N. K., Shivarama Varambally, A. Mooventhan,
15
+ Suman Bista, Deepeshwar Singh, Harleen Chhabra, Ganesan Venkatasubramanian,
16
+ Srinivasan T. M. & Nagendra H. R. (2016) Acute effects of 3G mobile phone radiations
17
+ on frontal haemodynamics during a cognitive task in teenagers and possible
18
+ protective value of Om chanting, International Review of Psychiatry, 28:3, 288-298, DOI:
19
+ 10.1080/09540261.2016.1188784
20
+ To link to this article: http://dx.doi.org/10.1080/09540261.2016.1188784
21
+ Published online: 07 Jun 2016.
22
+ Submit your article to this journal
23
+ Article views: 135
24
+ View related articles
25
+ View Crossmark data
26
+ Citing articles: 1 View citing articles
27
+ ORIGINAL ARTICLE
28
+ Acute effects of 3G mobile phone radiations on frontal haemodynamics
29
+ during a cognitive task in teenagers and possible protective value of
30
+ Om chanting
31
+ Hemant Bhargava, Manjunath N. K.a, Shivarama Varamballyb, A. Mooventhana, Suman Bistaa,
32
+ Deepeshwar Singha, Harleen Chhabrab, Ganesan Venkatasubramanianb, Srinivasan T. M.a and
33
+ Nagendra H. R.c
34
+ aAnvesana Research Laboratories, Division of Yoga and Life Sciences, S-VYASA Yoga University, Bangalore, India; bDepartment of
35
+ Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India; cS-VYASA Yoga University,
36
+ Bangalore, India
37
+ ABSTRACT
38
+ Mobile phone induced electromagnetic field (MPEMF) as well as chanting of Vedic mantra ‘OM’
39
+ has been shown to affect cognition and brain haemodynamics, but findings are still inconclusive.
40
+ Twenty right-handed healthy teenagers (eight males and 12 females) in the age range
41
+ of 18.25 ± 0.44 years were randomly divided into four groups: (1) MPONOM (mobile phone ‘ON’
42
+ followed by ‘OM’ chanting); (2) MPOFOM (mobile phone ‘OFF’ followed by ‘OM’ chanting); (3)
43
+ MPONSS (mobile phone ‘ON’ followed by ‘SS’ chanting); and (4) MPOFSS (mobile phone ‘OFF’
44
+ followed by ‘SS’ chanting). Brain haemodynamics during Stroop task were recorded using a
45
+ 64-channel fNIRS device at three points of time: (1) baseline, (2) after 30 min of MPON/OF expos-
46
+ ure, and (3) after 5 min of OM/SS chanting. RM-ANOVA was applied to perform within- and
47
+ between-group comparisons, respectively. Between-group analysis revealed that total scores on
48
+ incongruent Stroop task were significantly better after OM as compared to SS chanting
49
+ (MPOFOM vs MPOFSS), pre-frontal activation was significantly lesser after OM as compared to SS
50
+ chanting in channel 13. There was no significant difference between MPON and MPOF conditions
51
+ for Stroop performance, as well as brain haemodynamics. These findings need confirmation
52
+ through a larger trial in future.
53
+ ARTICLE HISTORY
54
+ Received 8 January 2016
55
+ Revised 10 April 2016
56
+ Accepted 7 May 2016
57
+ Published online 2 June 2016
58
+ KEYWORDS
59
+ Electro-magnetic field;
60
+ mobile phone; om chanting;
61
+ pre-frontal activation; Stroop
62
+ Introduction
63
+ With over 5.9 billion reported mobile phone users,
64
+ mobile phone constitutes to a new rapidly growing
65
+ exposure network in the world, putting almost all the
66
+ humans into a wide spectra of electromagnetic radi-
67
+ ation. Mobile phones emit a radiofrequency electro-
68
+ magnetic field (MPEMF), a large part of energy of
69
+ which is absorbed into the user’s head (Schonborn,
70
+ Burkhardt, & Kuster, 1998). Accumulating evidence
71
+ suggests that MPEMF may alter brain physiology.
72
+ Modulating effects of MPEMF on the human electro-
73
+ encephalogram in waking and sleep have repeatedly
74
+ been demonstrated in recent years, while results on
75
+ cognitive
76
+ performance
77
+ are
78
+ inconsistent
79
+ (Regel
80
+ &
81
+ Achermann, 2011). The lack of a validated tool, which
82
+ reliably assesses changes in cognitive performance
83
+ caused by MPEMF exposure, may contribute to the
84
+ current
85
+ inconsistency
86
+ in
87
+ outcomes
88
+ (Regel
89
+ &
90
+ Achermann, 2011). Some behavioural studies have sug-
91
+ gested that EMF might have a facilitative effect on
92
+ cognitive performance (Preece et al., 2005; Smythe &
93
+ Costall, 2003), although more recent studies primarily
94
+ revealed an impairment of mental abilities or no effect
95
+ at all (Haarala, Aalto et al., 2003; Haarala, Bj€
96
+ ornberg
97
+ et al., 2003; Regel & Achermann, 2011). Results of a
98
+ meta-analysis suggested that MPEMF might have a
99
+ small impact on human attention and working mem-
100
+ ory
101
+ (Barth,
102
+ Ponocny,
103
+ Ponocny-Seliger,
104
+ Vana,
105
+ &
106
+ Winker, 2010). All these studies have chiefly been per-
107
+ formed on adults and children. Studies on teenage
108
+ group are lacking. This age-group is among the most
109
+ prolific users of mobile phones, which puts them at
110
+ higher risk for MPEMF exposure-related effects (Aydin
111
+ et al., 2011).
112
+ Functional near-infrared spectroscopy (fNIRS) is a
113
+ new non-invasive optical method that can measure the
114
+ real
115
+ time
116
+ change
117
+ in
118
+ oxygenated
119
+ haemoglobin
120
+ (oxyHb) and deoxygenated haemoglobin (deoxyHb)
121
+ concentrations and their sum, i.e. total haemoglobin
122
+ (totalHb) or blood volume in the brain areas, suggesting
123
+ CONTACT Hemant Bhargav
124
125
+ Anvesana Research Laboratories, Division of Yoga and Life Sciences, S-VYASA Yoga
126
+ University, Bangalore, India
127
+  2016 Institute of Psychiatry
128
+ INTERNATIONAL REVIEW OF PSYCHIATRY, 2016
129
+ VOL. 28, NO. 3, 288–298
130
+ http://dx.doi.org/10.1080/09540261.2016.1188784
131
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
132
+ activation (increase in oxygenation) or deactivation
133
+ (reduction in oxygenation) of a particular brain area
134
+ (Ferrari & Quaresima, 2012). An fNIRS device has
135
+ excellent temporal resolution, and fNIRS results are
136
+ physiologically comparable to fMRI and PET results
137
+ (Obrig & Villringer, 2003). In a study using fNIRS, local
138
+ cerebral blood flow (CBF) on short-term exposure to
139
+ MPEMF was measured in 26 boys, aged 14–15 years.
140
+ Temperatures were also measured from both ear canals,
141
+ and skin temperatures at several sites of the head,
142
+ trunk, and extremities. It was found that local CBF and
143
+ ear canal temperature did not change and the auto-
144
+ nomic nervous system was not interfered with by
145
+ MPEMF (Lindholm et al., 2011). The study showed the
146
+ utility of fNIRS for EMF-related research. Compared to
147
+ previous studies using PET, fNIRS provides a much
148
+ higher time resolution, which allows investigation of
149
+ the short-term effects of EMF non-invasively, without
150
+ the use of radioactive tracers and with high sensitivity.
151
+ The Stroop task is a useful test of selective attention
152
+ and
153
+ inhibition
154
+ and
155
+ involves
156
+ frontally
157
+ mediated
158
+ cognitive processes such as response inhibition and
159
+ interference
160
+ resolution
161
+ (Stroop,
162
+ 1935).
163
+ Functional
164
+ neuro-imaging studies have found several areas of the
165
+ prefrontal cortex that appear to be specifically acti-
166
+ vated during the performance Stroop task. The Stroop
167
+ task has been used in several PET, fMRI, and fNIRS
168
+ studies (Taylor, Kornblum, Lauber, Minoshima, &
169
+ Koeppe, 1997).
170
+ OM is a cosmic sound that has a harmonizing effect
171
+ on the system (Kumar, Nagendra, Manjunath, Naveen,
172
+ & Telles, 2010). An fMRI study assessed neuro-haemo-
173
+ dynamic correlates of ‘OM’ chanting and found signifi-
174
+ cant deactivation in bilateral orbito-frontal, anterior
175
+ cingulate, para-hippocampal gyri, thalami, and hippo-
176
+ campi, and right amygdala as compared to chanting of
177
+ the sound Ssss or ‘SS’. Since similar observations have
178
+ been recorded with vagus nerve stimulation treatment
179
+ which
180
+ is
181
+ used
182
+ in
183
+ depression
184
+ and
185
+ epilepsy
186
+ management, the study findings argued for a potential
187
+ role of OM chanting in clinical practice (Kalyani,
188
+ Venkatasubramanian, Arasappa, Rao, Kalmady, Behere,
189
+ et al., 2011). Another recent study used fNIRS to assess
190
+ the immediate effect of 20 min of OM meditation (men-
191
+ tal chanting with effortless defocusing on syllable ‘OM’)
192
+ on Stroop task and found better performance and effi-
193
+ ciency (deactivation of pre-frontalcortices) after OM
194
+ meditation (Deepeshwar, Vinchurkar, Visweswaraiah,
195
+ & Nagendra, 2014).
196
+ Very few studies have assessed the effect of MPEMF
197
+ exposure on cognitive functions and brain haemo-
198
+ dynamics in adolescent population using fNIRS (Kwon
199
+ & H€
200
+ am€
201
+ al€
202
+ ainen,
203
+ 2011). Similarly, the effect of OM
204
+ chanting on the above variables after mobile phone
205
+ exposure has not been assessed before. We hypothe-
206
+ sized that MPEMF exposure of 30 min would affect
207
+ Stroop
208
+ task
209
+ performance
210
+ and
211
+ pre-frontal
212
+ haemo-
213
+ dynamics during the task in teenagers, and OM chant-
214
+ ing of 5 min following MPEMF exposure will have a
215
+ balancing effect on changes induced by MPEMF. The
216
+ present pilot study was planned to assess feasibility of
217
+ the protocol for future larger trails.
218
+ Materials and methods
219
+ Participants
220
+ We enrolled 20 right-handed teenagers (eight males
221
+ and 12 females) in the age range of 18.25 ± 0.44 years
222
+ from educational institutes in Bangalore city of India.
223
+ All subjects were healthy, as assessed by general health
224
+ questionnaire (GHQ-12), their mean GHQ score was
225
+ 0.8 ± 0.69,
226
+ and
227
+ average
228
+ body
229
+ mass
230
+ index
231
+ was
232
+ 21.7 ± 3.7 kg/m2. Subjects were fresh admissions in an
233
+ undergraduate degree course after recently clearing
234
+ their higher secondary school examinations and their
235
+ last academic performance was with an aggregate of
236
+ 72.48 ± 11.3%, suggesting absence of mental retardation
237
+ or other significant psychological morbidity. Subjects
238
+ who were able to read and write in English language
239
+ were selected. Subjects who had visual disturbances or
240
+ colour blindness (screened using Ishihara Charts) or
241
+ those with a peak flow rate below 150 L/min were
242
+ excluded; those who were regular meditators or who
243
+ were regularly chanting OM (or other similar mantras)
244
+ for the last 1 month or more were also excluded.
245
+ Similarly, female subjects were excluded during men-
246
+ struation. Subjects were given a week long orientation
247
+ in performing OM chanting or producing the sound
248
+ ‘sssss
249
+ . . .’
250
+ (SS)
251
+ for
252
+ same
253
+ duration
254
+ before
255
+ the
256
+ assessments.
257
+ Study design
258
+ A four groups randomized controlled design was fol-
259
+ lowed. Each subject was exposed to mobile phone on/
260
+ off for 30 min and then was asked to chant OM or SS
261
+ for 5 min. Depending on the status of phone (on or off)
262
+ and whether it is followed by chanting OM or SS, sub-
263
+ jects
264
+ were
265
+ randomly
266
+ divided
267
+ into
268
+ four
269
+ groups.
270
+ Randomization was performed using an online ran-
271
+ domization program (www.randomizer.org). It was gen-
272
+ der-stratified randomization to include equal number of
273
+ males and females (two males and three females) in
274
+ each
275
+ group.
276
+ Four
277
+ groups
278
+ were
279
+ as
280
+ follows:
281
+ (1)
282
+ INTERNATIONAL REVIEW OF PSYCHIATRY
283
+ 289
284
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
285
+ MPONOM group: In this group, subjects were exposed
286
+ to MPEMF through a mobile phone in ‘ON’ mode for
287
+ 30 min and after this subjects chanted OM for 5 min;
288
+ similarly,
289
+ in
290
+ (2)
291
+ MPOFOM
292
+ group:
293
+ Subjects
294
+ were
295
+ exposed to mobile phone in ‘OFF’ mode and chanted
296
+ OM; in (3) MPONSS group: Subjects were exposed to
297
+ mobile phone in ‘ON’ mode followed by ‘SS’ chanting;
298
+ and, lastly in (4) MPOFSS group: subjects were exposed
299
+ to mobile phone in ‘OFF’ mode and chanted ‘SS’ after-
300
+ wards. Assessments were done at three points of time
301
+ in each group: (1) Baseline; (2) After mobile phone on/
302
+ off exposure; and (3) after OM/SS chanting. Table 1
303
+ provides demographic details of the subjects in each
304
+ group. Demographic details did not differ significantly
305
+ between the groups. A schematic representation of the
306
+ study design is provided in Figure 1. Signed informed
307
+ consent was taken from the subjects who were above
308
+ 18 years of age and from the guardian/parents of those
309
+ below 18 years of age. Research was approved by insti-
310
+ tutional ethical committee.
311
+ EMF exposure settings
312
+ The source of EMF was a 2100 MHz 3G mobile phone
313
+ with a Universal Mobile Telecommunications System’s
314
+ (UMTS) network. It was an FCC approved device and
315
+ had a head specific absorption ratio (SAR) of 0.4 W/
316
+ Kg and body SAR of 0.54 W/Kg. Subjects sat on a
317
+ comfortable chair with head resting on the chair and
318
+ two identical mobile phones were kept at 0.5 cm dis-
319
+ tance from the tragus, one on each side, using an
320
+ adjustable wooden stand. On calling mode, the device
321
+ emitted average EMF energy of 1.305 ± 0.94 mW/m2
322
+ (with peak value of 2.34 mW/m2) at 5 mm. Left side
323
+ mobile was kept in off mode permanently with battery
324
+ removed. Right side mobile status only was changed
325
+ depending on the group to which the subject belongs.
326
+ Identical phones were kept on both sides at the same
327
+ distance from the ear to rule out lateralization effects
328
+ on brain haemodynamics. When subjects were exposed
329
+ to MPEMF, i.e. in MPON groups, fully charged mobile
330
+ was placed on the right side and a call was made for
331
+ 30 min from another phone. Both the phones (caller
332
+ and receiver) were kept mute throughout. During
333
+ sham exposure, the right side mobile was kept off with
334
+ battery removed. Subjects were unaware of the group
335
+ status
336
+ they
337
+ were
338
+ allocated
339
+ to.
340
+ A
341
+ counterbalanced
342
+ experiment with eight independent subjects, each with
343
+ four trials, indicated that the subjects could not detect
344
+ the EMF exposure condition any better than by guess-
345
+ ing (response accuracy 50%). FNIRS cap was fixed on
346
+ the head of the subject and recording was taken in a
347
+ dark room with a computer screen displaying Stroop
348
+ task. Figure 2 shows the settings of the study. During
349
+ the 30- min period of mobile phone on/off exposure,
350
+ subjects
351
+ heard
352
+ an
353
+ audio
354
+ describing
355
+ geography
356
+ of
357
+ Karanataka state. To ensure that subjects remained
358
+ awake during this period, subjects were asked to
359
+ Table 1. Demographic details of the subjects.
360
+ Variables/Group
361
+ MPONOM (mean ± SD)
362
+ MPOFOM (mean ± SD)
363
+ MPONSS (mean ± SD)
364
+ MPOFSS (mean ± SD)
365
+ n
366
+ 5
367
+ 5
368
+ 5
369
+ 5
370
+ Age (years)
371
+ 18.40 ± 0.548
372
+ 18.40 ± 0.548
373
+ 18.20 ± 0.447
374
+ 18.20 ± 0.447
375
+ Gender (numbers)
376
+ Male (n ¼ 2)
377
+ Female (n ¼ 3)
378
+ Male (n ¼ 2)
379
+ Female (n ¼ 3)
380
+ Male (n ¼ 2)
381
+ Female (n ¼ 3)
382
+ Male (n ¼ 2)
383
+ Female (n ¼ 3)
384
+ Height (m)
385
+ 1.64 ± 0.06
386
+ 1.63 ± 0.08
387
+ 1.61 ± 0.12
388
+ 1.63 ± 0.05
389
+ Weight (kg)
390
+ 53.60 ± 4.10
391
+ 52.98 ± 6.61
392
+ 56.80 ± 8.32
393
+ 61.40 ± 20.71
394
+ BMI (kg/m2)
395
+ 20.41 ± 1.83
396
+ 20.10 ± 1.94
397
+ 21.69 ± 3.71
398
+ 22.40 ± 7.01
399
+ Head circumference (cm)
400
+ 53.80 ± 1.10
401
+ 54.40 ± 1.82
402
+ 55.00 ± 1.41
403
+ 55.20 ± 0.84
404
+ Last academic performance (%)
405
+ 74.20 ± 8.56
406
+ 77.60 ± 7.96
407
+ 71.36 ± 12.13
408
+ 72.76 ± 12.01
409
+ GHQ-12 scores
410
+ 0.9 ± 0.44
411
+ 0.8 ± 0.50
412
+ 0.8 ± 0.31
413
+ 0.7 ± 0.66
414
+ MPONOM: mobile phone ‘ON’ followed by ‘OM’ chanting; MPOFOM: mobile phone ‘OFF’ followed by ‘OM’ chanting; MPONSS: mobile
415
+ phone ‘ON’ followed by ‘SS’ chanting; MPOFSS: mobile phone ‘OFF’ followed by ‘SS’ chanting.
416
+ Figure 1. Schematic representation of the study design. R: Rest; C: Congruent task; I: Incongruent task.
417
+ 290
418
+ H. BHARGAV ET AL.
419
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
420
+ answer 10 simple multiple choice questions at the end,
421
+ based on the audio. Those scoring more than 50%
422
+ were only included in the study further.
423
+ fNIRS device
424
+ We used a 64 channel continuous wave fNIRS device
425
+ (NIRx Medical Technologies, LLC, NY, USA) with a
426
+ sampling rate of 15.6 Hz. With eight light emitting
427
+ sources and eight detector probes, 18 channels were
428
+ measured quasi-simultaneously over both the pre-
429
+ frontal cortices using two wavelengths of near-infrared
430
+ light (760 nm and 850 nm). Probes were fixed on the
431
+ head based on 10–20 system using whole head stand-
432
+ ard sized caps (NIRScaps) for the age group assessed.
433
+ Figure 3 provides the montage and Table 2 provides
434
+ the channel distribution of fNIRS device followed in
435
+ the study.
436
+ Stroop task and procedure
437
+ Subjects were seated comfortably on a reclining chair
438
+ in a Faraday cage, facing a 21-inch LCD monitor
439
+ placed at a distance of 70 cm from their eyes. The cog-
440
+ nitive paradigm used in the present study was Stroop
441
+ task. The traditional 100 item paper and pencil version
442
+ of Stroop was projected on a computer screen and ver-
443
+ bal responses were recorded. The Stroop task was
444
+ designed based on the paradigm followed in previous
445
+ research (Taniguchi, Sumitani, Watanabe, Akiyama, &
446
+ Ohmori, 2012). During the Stroop task subjects were
447
+ asked to read as many words as possible on a com-
448
+ puter screen displaying 100 words. Subjects were ran-
449
+ domly presented with words ‘red’, ‘blue’, ‘yellow’, and
450
+ ‘green’ which were written in red, blue, yellow, and
451
+ green ink. The task was presented in block design that
452
+ consisted of rest periods and two test conditions: con-
453
+ gruent and incongruent. In the congruent condition
454
+ the name of the word was congruent with the colour
455
+ of the ink and subjects were asked to read them out.
456
+ In incongruent conditions, the four words were written
457
+ in incongruent colours. The time for Stroop task was
458
+ fixed and it was given using an automated software for
459
+ a total duration of 2 min and 30 s in the following
460
+ blocks: 30 s rest - 30 s task (congruent) - 30 s rest -
461
+ 30 s task (incongruent) - 30 s rest. In the rest periods,
462
+ clear instructions were shown to the subject for the
463
+ next task condition, for e.g. before congruent condition
464
+ the instruction was: ‘Please read the words on the
465
+ screen loudly and as quickly as possible’ and before
466
+ Figure 3. Montage of the study.
467
+ Figure 2. Settings of the study.
468
+ INTERNATIONAL REVIEW OF PSYCHIATRY
469
+ 291
470
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
471
+ the incongruent condition the instruction was: ‘Please
472
+ read the colour of the words on the screen loudly and
473
+ as quickly as possible’. Each subject was given orienta-
474
+ tion to the task 1 day prior to data collection. The
475
+ responses (number of total, correct, and incorrect
476
+ responses in 30 s of each condition) were recorded
477
+ manually by two trained psychologists using an answer
478
+ key for each condition. Both psychologists were blind
479
+ to the group allocations of the subject. Data was con-
480
+ sidered valid only when the scores from both the psy-
481
+ chologists were matching. The fNIRS measurement
482
+ was performed during the whole task. Markers were
483
+ applied for each task condition (congruent and incon-
484
+ gruent)
485
+ during
486
+ recording
487
+ to
488
+ segregate
489
+ respective
490
+ haemodynamic responses.
491
+ OM/SS chanting procedure
492
+ All the subjects were trained in ‘OM’ chanting by an
493
+ experienced yoga teacher and an orientation training
494
+ of 1 week was given to all the subjects before data col-
495
+ lection. The subjects were trained to chant ‘OM’ loudly
496
+ without distress and interruption—the vowel (O) part
497
+ of the ‘OM’ for 5 s continuing into the consonant
498
+ (M) part of the ‘OM’ for the next 10 s, maintaining a
499
+ ratio of 1:2. The control condition was continuous
500
+ production of ‘sssss . . .’ or ‘SS’ syllable for the same
501
+ duration. This was chosen to control for the expiratory
502
+ act of chanting ‘OM’, but without the vibratory sensa-
503
+ tion around the ears (Kalyani et al., 2011).
504
+ Data extraction and analysis
505
+ NIRS optical intensity data was processed by NIRstar
506
+ acquisition software and extracted using accompanying
507
+ topography
508
+ software
509
+ (nirsLAB;
510
+ NIRx
511
+ Medical
512
+ Technologies, LLC). Data were corrected for the effects
513
+ of vascular pulsation (Gratton & Fabiani, 2010). Pulse
514
+ corrected data were filtered using a low-pass (zero
515
+ phase
516
+ shift)
517
+ filter
518
+ with
519
+ a
520
+ cut-off
521
+ frequency
522
+ at
523
+ 0.01–0.2 Hz. For every subject, the channel measure-
524
+ ments showing low signal-to-noise ratio were dis-
525
+ carded. Linear trends of continuous oxyHb changes
526
+ and fluctuations were also eliminated. For oxyhaemo-
527
+ globin (oxyHb) concentration changes a 30 s baseline
528
+ was taken for analysis. To obtain haemodynamic data,
529
+ the
530
+ modified
531
+ Beer–Lambert
532
+ Law
533
+ was
534
+ applied
535
+ to
536
+ artifact-free segments (Hoshi, Kobayashi, & Tamura,
537
+ 1985). We focused on oxyHb concentration changes
538
+ for further analysis because they provide the most
539
+ robust signal-to-noise ratio and are the most sensitive
540
+ parameter of cerebral blood flow (Hoshi et al., 1985;
541
+ Sato et al., 2012). Values for changes in oxyHb were
542
+ obtained during the contrast of interest (Incongruent
543
+ minus Congruent Stroop), i.e. Stroop interference, for
544
+ all 18 channels at three points of time: (1) Baseline,
545
+ (2) Post mobile on/off, and (3) Post OM/SS for all the
546
+ four
547
+ groups
548
+ (MPONOM,
549
+ MPOFOM,
550
+ MPONSS,
551
+ MPOFSS). Similarly, Stroop task performance was
552
+ assessed at these three points of time for the four
553
+ groups.
554
+ Analysis
555
+ of
556
+ variance-repeated
557
+ measures
558
+ (RM-
559
+ ANOVA) was used for data analysis using SPSS ver-
560
+ sion 10. For analysis of Stroop performance, Stroop
561
+ task condition (correct, incorrect, and total scores for
562
+ each condition: congruent and incongruent) was the
563
+ dependent variable with ‘group’ as between-subjects
564
+ and ‘time point’ as within-subject factor. For haemo-
565
+ dynamics data, one multivariate RM-ANOVA analysis
566
+ was performed for all the 18 fNIRS channels. Channels
567
+ 1–18 were the dependent variable (level), with ‘group’
568
+ as between-subjects and ‘time point’ as within-subject
569
+ factor.
570
+ Post-hoc
571
+ comparisons
572
+ between
573
+ individual
574
+ groups/time points were made through Bonferroni’s
575
+ correction after checking for significance of main
576
+ effects or interactions.
577
+ Results
578
+ Forty-six subjects were screened, out of which 30 gave
579
+ consent to participate in the study. Out of 30, 24 satis-
580
+ fied the selection criteria and orientation training was
581
+ started.
582
+ Finally,
583
+ four
584
+ subjects
585
+ left
586
+ the
587
+ project
588
+ in
589
+ between and final data collection was successfully per-
590
+ formed on 20 subjects.
591
+ Stroop performance
592
+ As depicted in Figure 4, for Stroop incongruent total
593
+ scores (task condition), RM-ANOVA revealed signifi-
594
+ cant main effects for the time points, F(2, 15) ¼ 28.57,
595
+ p < 0.001, and a significant interaction between group
596
+ and time point, F(6, 32) ¼ 4.64, p < 0.05. Follow-up
597
+ Bonferroni’s adjustment showed that total scores in
598
+ Table 2. Channel distributions followed in the study while using fNIRS device.
599
+ Left side
600
+ S1-D1
601
+ S2-D1
602
+ S2-D2
603
+ S3-D1
604
+ S3-D3
605
+ S4-D1
606
+ S4-D2
607
+ S4-D3
608
+ S4-D4
609
+ Ch-1
610
+ 2
611
+ 3
612
+ 4
613
+ 5
614
+ 6
615
+ 7
616
+ 8
617
+ 9
618
+ Right side
619
+ S5-D5
620
+ S5-D6
621
+ S5-D7
622
+ S5-D8
623
+ S6-D6
624
+ S6-D8
625
+ S7-D7
626
+ S7-D8
627
+ S8-D8
628
+ 10
629
+ 11
630
+ 12
631
+ 13
632
+ 14
633
+ 15
634
+ 16
635
+ 17
636
+ 18
637
+ S1–S8: Sources; D1–D8: Detectors; Ch1–18: Channels.
638
+ 292
639
+ H. BHARGAV ET AL.
640
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
641
+ incongruent Stroop task were significantly better in
642
+ MPOFOM group after OM chanting as compared to
643
+ those in MPOFSS group after SS chanting (Table 3;
644
+ Figure 4). Within-group analysis showed that there
645
+ was a significant improvement in total scores of incon-
646
+ gruent Stroop task after OM chanting in MPONOM
647
+ (p < 0.01) and MPOFOM (p < 0.001) groups as com-
648
+ pared to the baseline and in MPOFOM group as com-
649
+ pared to the post-mobile values (p < 0.05), respectively
650
+ (Table 4). Also, in MPONSS group, there was a signifi-
651
+ cant improvement in scores of same task condition
652
+ after
653
+ SS
654
+ chanting
655
+ as
656
+ compared
657
+ to
658
+ the
659
+ baseline
660
+ (p < 0.01; Table 4). For other task conditions no sig-
661
+ nificant main effects or interactions were observed.
662
+ fNIRS results
663
+ Multivariate RM-ANOVA for all the 18 channels
664
+ revealed
665
+ significant
666
+ main
667
+ effects
668
+ for
669
+ levels
670
+ [F(2,
671
+ 5) ¼ 6.18; p < 0.05; Effect Size ¼0.62] and significant
672
+ interaction between level and group [F(6, 12) ¼ 5.82,
673
+ p < 0.05; Effect Size ¼0.60]. Subsequent RM-ANOVA
674
+ tests for each channel showed significant main effects
675
+ for the time points in fNIRS channels 2, 6, 7, 8, 10,
676
+ 13, and 18 [Channel 2: F(2, 26) ¼ 3.51, p < 0.05;
677
+ Channel 6: F(2, 26) ¼ 3.27, p < 0.05; Channel 7: F(2,
678
+ 26) ¼ 6.11,
679
+ p < 0.01;
680
+ Channel
681
+ 8:
682
+ F(2,
683
+ 26) ¼ 6.05,
684
+ p < 0.01;
685
+ Channel
686
+ 10:
687
+ F(2,
688
+ 26) ¼ 3.11,
689
+ p < 0.05;
690
+ Channel 13: F(2, 26) ¼ 3.41, p < 0.05; Channel 18: F(2,
691
+ 26) ¼ 3.46,
692
+ p < 0.05]
693
+ and
694
+ a
695
+ significant
696
+ interaction
697
+ between group and time point for channels 13 and 18
698
+ [Channel 13: F(6, 26) ¼ 2.50, p < 0.05; Channel 18:
699
+ Figure 4. Graph showing changes in total scores of incongru-
700
+ ent Stroop task in all the four groups at three points of time:
701
+ Group: 1: MPONOM; 2: MPONSS; 3: MPOFOM; 4: MPOFSS; Level:
702
+ 1: Baseline; 2: After 30 min of MPON/OF exposure; 3: After OM/
703
+ SS chanting. Y-axis: Total scores during Stroop Incongruent
704
+ Task.
705
+ Table 3. Comparison within groups for Stroop performance at the baseline, after mobile phone on/off exposure and after OM/SS
706
+ chanting.
707
+ Group
708
+ Task
709
+ condition
710
+ Scores
711
+ Baseline
712
+ (mean ± SD) (1)
713
+ After mobile
714
+ (mean ± SD) (2)
715
+ After OM/SS
716
+ (mean ± SD) (3)
717
+ F values
718
+ (df hypothesis,
719
+ error)
720
+ Effect
721
+ size
722
+ pa value
723
+ (1 vs 2)
724
+ pa value
725
+ (2 vs 3)
726
+ pa value
727
+ (1 vs 3)
728
+ MPONOM
729
+ CT
730
+ C
731
+ 47.00 ± 12.79
732
+ 51.40 ± 14.69
733
+ 53.00 ± 6.86
734
+ (2,15) 1.71
735
+ 2.53
736
+ 1
737
+ 1
738
+ 1
739
+ IC
740
+ 1.00 ± 1.00
741
+ 1.00 ± 0.71
742
+ 1.00 ± 1.22
743
+ (2,15) 0.91
744
+ 0.01
745
+ 1
746
+ 1
747
+ 1
748
+ T
749
+ 50.40 ± 6.11
750
+ 51.60 ± 5.77
751
+ 53.20 ± 5.97
752
+ (2,15) 0.81
753
+ 1.14
754
+ 1
755
+ 1
756
+ 1
757
+ ICT
758
+ C
759
+ 25.60 ± 3.97
760
+ 27.40 ± 7.37
761
+ 30.60 ± 4.22
762
+ (2,15) 2.48
763
+ 2.06
764
+ 1
765
+ 0.934
766
+ 0.072
767
+ IC
768
+ 1.80 ± 2.17
769
+ 1.20 ± 1.30
770
+ 1.60 ± 1.14
771
+ (2,15) 0.51
772
+ 0.24
773
+ 0.624
774
+ 0.533
775
+ 1
776
+ T
777
+ 27.40 ± 3.97
778
+ 28.60 ± 7.47
779
+ 32.20 ± 4.66
780
+ (2,15) 6.03
781
+ 2.03
782
+ 1
783
+ 0.821
784
+ 0.033*
785
+ MPONSS
786
+ CT
787
+ C
788
+ 45.80 ± 3.19
789
+ 43.20 ± 6.30
790
+ 46.40 ± 7.50
791
+ (2,15) 3.76
792
+ 1.38
793
+ 1
794
+ 0.342
795
+ 1
796
+ IC
797
+ 1.20 ± 1.30
798
+ 2.20 ± 1.48
799
+ 1.60 ± 1.14
800
+ (2,15) 0.34
801
+ 0.41
802
+ 0.267
803
+ 0.914
804
+ 1
805
+ T
806
+ 48.40 ± 4.62
807
+ 46.20 ± 4.92
808
+ 49.80 ± 4.92
809
+ (2,15) 0.84
810
+ 1.48
811
+ 1
812
+ 0.276
813
+ 1
814
+ ICT
815
+ C
816
+ 25.20 ± 3.56
817
+ 29.20 ± 3.96
818
+ 30.00 ± 5.39
819
+ (2,15) 2.1
820
+ 2.09
821
+ 0.057
822
+ 1
823
+ 0.072
824
+ IC
825
+ 2.00 ± 1.58
826
+ 1.80 ± 1.92
827
+ 2.00 ± 1.58
828
+ (2,15) 0.24
829
+ 0.09
830
+ 1
831
+ 1
832
+ 1
833
+ T
834
+ 27.20 ± 3.42
835
+ 31.00 ± 2.83
836
+ 32.00 ± 4.95
837
+ (2,15) 6.79
838
+ 2.06
839
+ 0.215
840
+ 1
841
+ 0.028*
842
+ MPOFOM
843
+ CT
844
+ C
845
+ 46.40 ± 6.02
846
+ 48.80 ± 3.63
847
+ 50.00 ± 3.67
848
+ 1.93 (2,15)
849
+ 1.49
850
+ 0.466
851
+ 1
852
+ 1
853
+ IC
854
+ 0.40 ± 0.89
855
+ 0.20 ± 0.45
856
+ 0.40 ± 0.55
857
+ (2,15) 0.21
858
+ 0.24
859
+ 1
860
+ 1
861
+ 1
862
+ T
863
+ 49.80 ± 13.41
864
+ 56.00 ± 12.19
865
+ 54.80 ± 5.81
866
+ (2,15) 21.5
867
+ 2.60
868
+ 0.662
869
+ 1
870
+ 1
871
+ ICT
872
+ C
873
+ 26.00 ± 5.10
874
+ 30.60 ± 3.91
875
+ 35.40 ± 2.07
876
+ (2,15) 2.87
877
+ 3.83
878
+ 0.141
879
+ 0.084
880
+ 0.065
881
+ IC
882
+ 1.80 ± 1.48
883
+ 1.60 ± 0.89
884
+ 1.40 ± 1.14
885
+ (2,15) 0.10
886
+ 0.16
887
+ 1
888
+ 1
889
+ 1
890
+ T
891
+ 27.80 ± 4.60
892
+ 32.20 ± 4.02
893
+ 36.80 ± 2.77
894
+ (2,15) 21.5
895
+ 3.67
896
+ 0.234
897
+ 0.034*
898
+ 0.052
899
+ MPOFSS
900
+ CT
901
+ C
902
+ 51.40 ± 3.78
903
+ 49.40 ± 9.15
904
+ 52.60 ± 6.39
905
+ (2,15) 1.17
906
+ 1.31
907
+ 1
908
+ 0.226
909
+ 1
910
+ IC
911
+ 1.20 ± 1.30
912
+ 1.40 ± 1.67
913
+ 1.40 ± 1.14
914
+ (2,15) 0.21
915
+ 0.94
916
+ 1
917
+ 1
918
+ 1
919
+ T
920
+ 45.80 ± 2.39
921
+ 43.80 ± 6.02
922
+ 48.60 ± 7.02
923
+ (2,15) 1.1
924
+ 1.96
925
+ 1
926
+ 0.19
927
+ 1
928
+ ICT
929
+ C
930
+ 21.40 ± 8.88
931
+ 24.20 ± 5.97
932
+ 24.80 ± 4.32
933
+ (2,15) 1.2
934
+ 1.48
935
+ 0.985
936
+ 1
937
+ 0.616
938
+ IC
939
+ 3.40 ± 3.97
940
+ 2.60 ± 2.19
941
+ 2.00 ± 2.35
942
+ (2,15) 2.7
943
+ 0.57
944
+ 1
945
+ 0.211
946
+ 0.404
947
+ T
948
+ 24.80 ± 5.02
949
+ 26.80 ± 4.44
950
+ 26.80 ± 2.39
951
+ (2,15) 1.32
952
+ 0.94
953
+ 0.958
954
+ 1
955
+ 0.871
956
+ CT: Congruent task; ICT: Incongruent task; C: Correct score; IC: Incorrect score; T: Total score.
957
+ aRepeated measures ANOVA after Bonferroni’s adjustment.
958
+ *p < 0.05.
959
+ INTERNATIONAL REVIEW OF PSYCHIATRY
960
+ 293
961
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
962
+ F(2, 26) ¼ 2.53, p < 0.05]. Post-hoc analysis through
963
+ Bonferroni’s
964
+ correction
965
+ further
966
+ revealed
967
+ that
968
+ pre-
969
+ frontal oxygenation was significantly lesser in the
970
+ MPOFOM group after OM chanting as compared to
971
+ the MPONSS group after SS chanting in channel 13
972
+ (p < 0.05) and channel 18 (p < 0.05; Table 5; Fig. 5
973
+ and 6). Within-group analysis showed that there was a
974
+ significant reduction in oxygenation after OM chanting
975
+ in the MPOFOM group as compared to post-MPOF
976
+ values in channels 2, 6, 7, 8, 13, and 18 (Table 5).
977
+ Also, in the MPONSS group, there was a significant
978
+ increase in pre-frontal oxygenation in channel 10 after
979
+ SS chanting as compared to the baseline (p < 0.05;
980
+ Table 5). For other fNIRS channels no significant
981
+ main effects or interactions were observed.
982
+ Discussion
983
+ The present pilot work was planned to assess feasibility
984
+ of the protocol for future larger trails. We found the
985
+ protocol to be feasible and none of the subjects
986
+ reported any side-effects. We did not observe any sig-
987
+ nificant difference between MPON or MPOF condi-
988
+ tions
989
+ for
990
+ Stroop
991
+ Task
992
+ performance
993
+ or
994
+ brain
995
+ haemodynamics, but there was a tendency for better
996
+ Stroop incongruent performance and reduced oxygen-
997
+ ation in some channels after OM chanting as com-
998
+ pared
999
+ to
1000
+ SS
1001
+ chanting.
1002
+ Previously,
1003
+ Regel
1004
+ and
1005
+ Achermann (2011) reviewed 41 studies, where distinct
1006
+ cognitive tasks were employed at various levels of diffi-
1007
+ culty
1008
+ to
1009
+ evaluate
1010
+ effects
1011
+ of
1012
+ MPEMF.
1013
+ Six
1014
+ studies
1015
+ revealed an increase in performance speed, and seven
1016
+ studies reported a decrease. Similarly, accuracy of per-
1017
+ formance was reduced and elevated in several experi-
1018
+ ments. Most of the previous studies have not found
1019
+ any effect of MPEMF exposure for less than 20 min on
1020
+ brain haemodynmaics (Regel & Achermann, 2011);
1021
+ therefore, in the present trial we chose a duration of
1022
+ 30 min for exposure. In the present study, even after
1023
+ 30 min of MPEMF exposure, we did not observe any
1024
+ significant improvement or decline in cognitive per-
1025
+ formance or changes in brain haemodynamics. The
1026
+ present study used a task (Stroop task) which requires
1027
+ less duration and yet is complex enough to elicit a
1028
+ cognitive response (Stroop, 1935). Previously, a cross-
1029
+ sectional study used the Stroop task to find out associ-
1030
+ ations between cognitive performance and mobile
1031
+ phone use and found that mobile phone use was asso-
1032
+ ciated with faster and less accurate responding to
1033
+ higher level cognitive tasks (Abramson et al., 2009).
1034
+ In
1035
+ another
1036
+ study,
1037
+ the acute
1038
+ effect
1039
+ of
1040
+ 45 min
1041
+ of
1042
+ MPEMF exposure was tested on 168 subjects using
1043
+ the Stroop paradigm. Subjects were in the age range
1044
+ Table 4. Comparison between MPOFOM and MPOFSS groups for Stroop Performance (Incongruent Task) at the baseline, after mobile phone on/off exposure and after OM/SS
1045
+ chanting.
1046
+ Correct score
1047
+ Incorrect score
1048
+ Total score
1049
+ MPOFOM
1050
+ MPOFSS
1051
+ F value
1052
+ (df contrast,
1053
+ error)
1054
+ pa value
1055
+ MPOFOM
1056
+ MPOFSS
1057
+ F value
1058
+ (df contrast,
1059
+ error)
1060
+ pa value
1061
+ MPOFOM
1062
+ MPOFSS
1063
+ F value
1064
+ (df contrast,
1065
+ error)
1066
+ pa value
1067
+ Baseline
1068
+ 26.00 ± 5.10
1069
+ 21.40 ± 8.88
1070
+ (3,16) 0.67
1071
+ 1
1072
+ 1.80 ± 1.48
1073
+ 3.40 ± 3.97
1074
+ (3,16) 0.91
1075
+ 1
1076
+ 27.80 ± 4.60
1077
+ 24.80 ± 5.02
1078
+ (3,16) 0.63
1079
+ 1
1080
+ After mobile on/off
1081
+ 30.60 ± 3.91
1082
+ 24.20 ± 5.97
1083
+ (3, 16) 0.32
1084
+ 0.5
1085
+ 1.60 ± 0.89
1086
+ 2.60 ± 2.19
1087
+ (3,16) 0.63
1088
+ 1
1089
+ 32.20 ± 4.02
1090
+ 26.80 ± 4.44
1091
+ (3,16) 0.33
1092
+ 0.63
1093
+ After OM/SS
1094
+ 35.40 ± 2.07
1095
+ 24.80 ± 4.32
1096
+ (3,16) 5.38
1097
+ 0.005**
1098
+ 1.40 ± 1.14
1099
+ 2.00 ± 2.35
1100
+ (3,16) 0.17
1101
+ 1
1102
+ 36.80 ± 2.77
1103
+ 26.80 ± 2.39
1104
+ (3,16) 5.6
1105
+ 0.006**
1106
+ MPOFOM: mobile phone off followed by Om chanting; MPOFSS: Mobile phone off followed by ‘SS’ chanting.
1107
+ aRM-ANOVA after Bonferroni’s adjustment.
1108
+ **p < 0.01.
1109
+ 294
1110
+ H. BHARGAV ET AL.
1111
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
1112
+ of 18–42 years. It was observed that, with neutral
1113
+ Stroop condition, the mean reaction time of subjects
1114
+ was significantly lesser when exposed to MPEMF
1115
+ signals than in the sham condition, whereas with
1116
+ incongruent Stroop condition, there was no signifi-
1117
+ cant difference between the groups (Cinel, Boldini,
1118
+ Fox, & Russo, 2008). In the present study, we did
1119
+ not
1120
+ find
1121
+ any
1122
+ difference
1123
+ in
1124
+ performance
1125
+ between
1126
+ MPEMF and sham exposure for either congruent or
1127
+ incongruent Stroop task after 30 min of exposure.
1128
+ This may be due to a very small sample size in the
1129
+ present study as compared to the study by Cinel
1130
+ et al. (2008). Probably, 45 min of MPEMF exposure
1131
+ would have produced some changes in cognitive per-
1132
+ formance, as observed by Cinel et al. (2008), but,
1133
+ since the institutional ethical committee did not per-
1134
+ mit exposure of mobile phone radiation for more
1135
+ than 30 min to teenagers, the duration of 30 min
1136
+ was chosen for our study.
1137
+ A previous positron emission tomography (PET)
1138
+ study found increased cerebral blood flow (CBF) in
1139
+ the prefrontal cortex after 30 min exposure to a 900-
1140
+ Table 5. Significant changes in oxyHb levels (lmol/l) in different groups across fNIRS channels.
1141
+ Group
1142
+ Channel
1143
+ Side
1144
+ Baseline
1145
+ (mean ± SD)
1146
+ (1)
1147
+ After mobile
1148
+ (mean ± SD)
1149
+ (2)
1150
+ After OM/SS
1151
+ (mean ± SD)
1152
+ (3)
1153
+ F values
1154
+ (df hypoth-
1155
+ esis, error)
1156
+ Effect size
1157
+ pa value
1158
+ (1 vs 2)
1159
+ pa value
1160
+ (2 vs 3)
1161
+ pa value
1162
+ (1 vs 3)
1163
+ MPOFOM
1164
+ 2
1165
+ Left
1166
+ 1.41 ± 6.43
1167
+ 4.50 ± 2.77
1168
+ 4.95 ± 5.94
1169
+ (2, 26) 3.51
1170
+ 0.46
1171
+ 1
1172
+ 0.03*
1173
+ 0.18
1174
+ 6
1175
+ Left
1176
+ 2.12 ± 4.91
1177
+ 3.67 ± 3.43
1178
+ 7.58 ± 3.60
1179
+ (2, 26) 3.27
1180
+ 0.46
1181
+ 0.28
1182
+ 0.03*
1183
+ 0.51
1184
+ 7
1185
+ Left
1186
+ 3.76 ± 9.24
1187
+ 9.21 ± 3.37
1188
+ 2.27 ± 8.42
1189
+ (2, 26) 6.11
1190
+ 0.52
1191
+ 0.55
1192
+ 0.04*
1193
+ 0.11
1194
+ 8
1195
+ left
1196
+ 0.33 ± 5.22
1197
+ 6.40 ± 2.27
1198
+ 5.17 ± 2.88
1199
+ (2, 26) 6.05
1200
+ 0.64
1201
+ 0.40
1202
+ 0.002**
1203
+ 0.26
1204
+ 13
1205
+ Right
1206
+ 2.27 ± 5.87
1207
+ 2.36 ± 2.00
1208
+ 6.74 ± 5.72#
1209
+ (2, 26) 3.41
1210
+ 0.42
1211
+ 0.86
1212
+ 0.04*
1213
+ 0.32
1214
+ 18
1215
+ Right
1216
+ 1.34 ± 10.46
1217
+ 4.11 ± 1.50
1218
+ 8.16 ± 8.39$
1219
+ (2, 26) 3.46
1220
+ 0.57
1221
+ 0.55
1222
+ 0.03*
1223
+ 0.016*
1224
+ MPONSS
1225
+ 10
1226
+ Right
1227
+ 1.94 ± 7.19
1228
+ 0.70 ± 8.10
1229
+ 3.77 ± 4.78
1230
+ (2, 26) 3.11
1231
+ 0.49
1232
+ 1
1233
+ 1
1234
+ 0.011*
1235
+ 13
1236
+ Right
1237
+ 0.81 ± 6.55
1238
+ 0.40 ± 5.56
1239
+ 1.68 ± 2.40#
1240
+ (2, 26) 0.74
1241
+ 0.04
1242
+ 1
1243
+ 0.71
1244
+ 1
1245
+ 18
1246
+ Right
1247
+ 0.54 ± 4.66
1248
+ 2.16 ± 6.82
1249
+ 1.11 ± 3.40$
1250
+ (2, 26) 0.72
1251
+ 0.04
1252
+ 1
1253
+ 0.75
1254
+ 1
1255
+ oxyHb: oxygenated haemoglobin; fNIRS: functional near infrared spectroscopy; MPOFOM: mobile phone ‘OFF’ followed by ‘OM’ chanting; MPONSS: mobile
1256
+ phone ‘ON’ followed by ‘SS’ chanting.
1257
+ aRepeated measures ANOVA after Bonferroni’s adjustment
1258
+ *p < 0.05;
1259
+ **p < 0.01.
1260
+ #Significant between-group differences; F(6, 26) ¼ 2.50, p < 0.05.
1261
+ $Significant between-group differences; F(2, 26) ¼ 2.53, p < 0.05.
1262
+ Figure 5. Graph showing changes in oxyHb levels in channel
1263
+ 13 during Stroop task in all the four groups at three points of
1264
+ time: Group: 1: MPONOM; 2: MPONSS; 3: MPOFOM; 4: MPOFSS;
1265
+ Level: 1: Baseline; 2: After 30 min of MPON/OF exposure; 3:
1266
+ After OM/SS chanting. Y-axis: Concentration of oxygenated
1267
+ haemoglobin (oxyHb) expressed in lmol/l.
1268
+ Figure 6. Graph showing changes in oxyHb levels in channel
1269
+ 18 during Stroop task in all the four groups at three points of
1270
+ time: Group: 1: MPONOM; 2: MPONSS; 3: MPOFOM; 4: MPOFSS;
1271
+ Level: 1: Baseline; 2: After 30 min of MPON/OF exposure; 3:
1272
+ After OM/SS chanting. Y-axis: Concentration of oxygenated
1273
+ haemoglobin (oxyHb) expressed in lmol/l.
1274
+ INTERNATIONAL REVIEW OF PSYCHIATRY
1275
+ 295
1276
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
1277
+ MHz GSM signal (Huber et al., 2005). Another
1278
+ similar PET study showed decreased cerebral blood
1279
+ flow
1280
+ in
1281
+ the
1282
+ temporal
1283
+ cortex
1284
+ after
1285
+ a
1286
+ continuous
1287
+ 51 min exposure to a 902-MHz GSM signal (Aalto
1288
+ et al., 2006). A brain energy metabolism study done
1289
+ using PET on 13 young male subjects exposed to a
1290
+ pulse modulated 902.4 MHz GSM for 33 min while
1291
+ performing
1292
+ a
1293
+ simple
1294
+ visual
1295
+ vigilance
1296
+ task
1297
+ also
1298
+ showed that relative cerebral metabolic rate of glu-
1299
+ cose was significantly reduced in the temporo-par-
1300
+ ietal junction and anterior temporal lobe of the right
1301
+ hemisphere ipsilateral to the exposure (Kwon et al.,
1302
+ 2011). Another study investigated the effects induced
1303
+ by an exposure to a GSM signal on brain BOLD
1304
+ (blood-oxygen-level dependent) response, as well as
1305
+ its time course while performing a Go–No-Go task.
1306
+ BOLD response of active brain areas and reaction
1307
+ times (RTs) while performing the task were meas-
1308
+ ured both before and after the exposure. It was
1309
+ observed that reaction times to the somato-sensory
1310
+ task did not change as a function of exposure (real
1311
+ vs sham) to GSM signal. BOLD results revealed sig-
1312
+ nificant activations in inferior parietal lobule, insula,
1313
+ precentral, and postcentral gyri associated with Go
1314
+ responses
1315
+ after
1316
+ both
1317
+ ‘real’
1318
+ and
1319
+ ‘sham’
1320
+ exposure,
1321
+ whereas no significant effects were observed in the
1322
+ between-group analysis. The authors concluded that
1323
+ there were no changes in BOLD response as a con-
1324
+ sequence of EMFs exposure (Curcio et al., 2012).
1325
+ Most of these researches used a 900 MHz GSM sig-
1326
+ nal which corresponds to the 2G spectrum and the
1327
+ results were mixed. In the present study, depending
1328
+ on
1329
+ the
1330
+ increasing
1331
+ use,
1332
+ we
1333
+ exposed
1334
+ subjects
1335
+ to
1336
+ 2170 MHz UMTS (which corresponds to 3G spec-
1337
+ trum MPEMFs) to find that results may not differ
1338
+ much with the band width of EMFs. Very few stud-
1339
+ ies have used a fNIRS device to assess effects of
1340
+ MPEMF
1341
+ before.
1342
+ In
1343
+ one
1344
+ study
1345
+ (Wolf,
1346
+ Haensse,
1347
+ Morren,
1348
+ &
1349
+ Froehlich,
1350
+ 2006),
1351
+ effects
1352
+ of
1353
+ GSM
1354
+ 900 MHz signals (EMF) were assessed on the cere-
1355
+ bral blood circulation using near-infrared spectropho-
1356
+ tometry in a three armed (12 W/kg, 1.2 W/kg,
1357
+ sham), double blind, randomized crossover trial in
1358
+ 16 healthy volunteers. During exposure there was a
1359
+ borderline significant short -term responses of oxy-
1360
+ haemoglobin
1361
+ (oxyHb)
1362
+ and
1363
+ deoxyhaemoglobin
1364
+ (deoxyHb)
1365
+ concentration,
1366
+ which
1367
+ correspond
1368
+ to
1369
+ a
1370
+ decrease of cerebral blood flow and volume. The
1371
+ authors found that there was no detectable dose–res-
1372
+ ponse relation or long-term response within 20 min
1373
+ of exposure and the detection limit was a fraction of
1374
+ the
1375
+ regular
1376
+ physiological
1377
+ changes
1378
+ elicited
1379
+ by
1380
+ functional activation. The above study did not use a
1381
+ cognitive task along with the fNIRS device. In the pre-
1382
+ sent study, we did not assess the effect of MPEMF dur-
1383
+ ing the exposure on brain haemodynamics, but only
1384
+ after the exposure, on the haemodynamic responses
1385
+ during a cognitive challenge to understand the mechan-
1386
+ ism through which MPEMF exposure may affect cogni-
1387
+ tive
1388
+ functions.
1389
+ Our
1390
+ results
1391
+ also
1392
+ demonstrated
1393
+ no
1394
+ significant change. The only effect we observed was a
1395
+ slight tendency towards higher activation during Stroop
1396
+ interference after MPEMF exposure in channel 10
1397
+ (right side) in the MPONSS group after SS chanting as
1398
+ compared to the baseline. Since the sample size in the
1399
+ present work is very small as compared to previous
1400
+ researches; it is difficult to draw definitive conclusions
1401
+ at present. Cognition enhancing effects of OM chanting
1402
+ have been reported in a few studies before. In a com-
1403
+ parative study, middle latency auditory evoked poten-
1404
+ tials were recorded in 18 male volunteers with ages
1405
+ between 25–45 years before, during, and after 20 min of
1406
+ OM chanting as compared to chanting of syllable ‘one’.
1407
+ There was a significant difference between senior and
1408
+ naive subjects’ response in terms of increase and reduc-
1409
+ tion in peak amplitude of Na waves, suggesting experi-
1410
+ ence dependent neural changes due to OM chanting
1411
+ (Telles, Nagarathna, & Nagendra, 1994). Previously,
1412
+ Deepeshwar et al. (2014) assessed the immediate effect
1413
+ of 20 min of OM meditation (mental chanting with
1414
+ effortless defocusing on syllable ‘OM’) on Stroop task
1415
+ using fNIRS technology. They found that the mean
1416
+ reaction time was shorter during Stroop colour word
1417
+ task with concomitant reduction in total haemoglobin
1418
+ after OM meditation as compared to random thinking
1419
+ for same duration, suggestive of improved performance
1420
+ and efficiency after OM meditation in task-related to
1421
+ attention. Our findings with OM chanting of 5 min are
1422
+ similar to this study (Deepeshwar et al., 2014), i.e. there
1423
+ may be lesser pre-frontal activation with better per-
1424
+ formance on cognitive tasks after OM chanting. This
1425
+ may suggest improved efficiency, i.e. better cognitive
1426
+ output with lesser utilization of resources after OM
1427
+ chanting. Previous researches also report that medita-
1428
+ tion may induce a state of reduced psycho-physiological
1429
+ arousal
1430
+ with
1431
+ enhanced
1432
+ awareness
1433
+ and
1434
+ attention
1435
+ (Subramanya & Telles, 2009). Thus, chanting OM ver-
1436
+ bally may have similar effects, as produced by mental
1437
+ chanting with effortless defocusing on syllable OM,
1438
+ even when it is chanted for as low a duration as 5 min.
1439
+ Although
1440
+ there
1441
+ were
1442
+ between-group
1443
+ differences
1444
+ (MPOFOM vs MPOFSS) where incongruent Stroop
1445
+ task performance after OM chanting was significantly
1446
+ better as compared to SS chanting, this result was
1447
+ 296
1448
+ H. BHARGAV ET AL.
1449
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
1450
+ found within the MPOFOM group only and not in the
1451
+ MPONOM group. In our study, each subject per-
1452
+ formed the Stroop task three times and the last per-
1453
+ formance was after OM/SS chanting. As Stroop tasks
1454
+ are
1455
+ known
1456
+ to
1457
+ produce
1458
+ a
1459
+ practice
1460
+ effect
1461
+ (Lemay,
1462
+ B
1463
+ edard, Rouleau, & Tremblay, 2004), the possibility of
1464
+ the results being obtained simply due to practice effect
1465
+ cannot be denied. Also, the sample size in our study is
1466
+ very small to draw any conclusion. Deactivation of
1467
+ pre-frontal cortices following OM chanting may be
1468
+ due to the vibrations produced by the sound ‘OM’,
1469
+ which may have a stimulating effect on branch of
1470
+ vagus nerve in the ear canal (Kalyani et al., 2011).
1471
+ Although the present study followed a randomized
1472
+ controlled design and used an objective functional
1473
+ neuro-imaging device, along with a standard validated
1474
+ cognitive task to assess effect of MPEMF exposure and
1475
+ OM chanting on teenagers, small sample size is a major
1476
+ limitation which restricts generalization of the results.
1477
+ As a traditional version of Stroop was used, it was not
1478
+ possible to record the reaction time along with Stroop
1479
+ performance scores. In future, we plan to overcome
1480
+ these shortcomings and repeat the same protocol with
1481
+ larger sample size to confirm the findings.
1482
+ Conclusion
1483
+ Although it was observed that MPEMF exposure of
1484
+ 30 min did not produce any significant impact on cog-
1485
+ nition or brain haemodynamics of teenagers, and OM
1486
+ chanting had some cognition enhancing effect which
1487
+ was associated with lesser oxygenation of pre-frontal
1488
+ cortices during the task in some channels, no definite
1489
+ conclusion can be drawn from this preliminary study.
1490
+ The study protocol followed in the present study was
1491
+ found feasible and a future trial with larger sample
1492
+ size is implicated.
1493
+ Acknowledgements
1494
+ The authors are thankful to the Science and Engineering
1495
+ Research
1496
+ Board
1497
+ (SERB),
1498
+ Department
1499
+ of
1500
+ Science
1501
+ and
1502
+ Technology (DST), Ministry of Science and Technology,
1503
+ Government of India for funding this research work.
1504
+ Disclosure statement
1505
+ The authors report no conflicts of interest. The authors alone
1506
+ are responsible for the content and writing of the paper.
1507
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1639
+ Lemay, S., B
1640
+ edard, M. A., Rouleau, I., & Tremblay, P. L.
1641
+ (2004). Practice effect and test-retest reliability of atten-
1642
+ tional and executive tests in middle-aged to elderly sub-
1643
+ jects. The Clinical Neuropsychologist, 18, 284–302.
1644
+ Lindholm, H., Alanko, T., Rintam€
1645
+ aki, H., K€
1646
+ ann€
1647
+ al€
1648
+ a, S.,
1649
+ Toivonen, T., Sistonen, H., . . . Hietanen, M. (2011).
1650
+ Thermal effects of mobile phone RF fields on children: A
1651
+ provocation study. Progress in Biophysics and Molecular
1652
+ Biology, 107, 399–403.
1653
+ Obrig, H., & Villringer, A. (2003). Beyond the visible-imag-
1654
+ ing the human brain with light. Journal of Cerebral Blood
1655
+ Flow & Metabolism, 23, 1–18.
1656
+ Preece, A. W., Goodfellow, S., Wright, M. G., Butler, S. R.,
1657
+ Dunn, E. J., Johnson, Y., . . . Wesnes, K. (2005). Effect of
1658
+ 902 MHz mobile phone transmission on cognitive func-
1659
+ tion in children. Bioelectromagnetics, 26, S138–S143.
1660
+ Regel, S. J., & Achermann, P. (2011). Cognitive performance
1661
+ measures
1662
+ in
1663
+ bioelectromagnetic
1664
+ research–critical
1665
+ evaluation and recommendations. Environmental Health,
1666
+ 10, 10.
1667
+ Sato, H., Hirabayashi, Y., Tsubokura, H., Kanai, M., Ashida,
1668
+ Konishi, T. I., Maki, A. (2012). Cerebral hemodynamics
1669
+ in newborn infants exposed to speech sounds: A whole-
1670
+ head optical topography study. Human Brain Mapping,
1671
+ 33 2092–2103.
1672
+ Schonborn,
1673
+ F.,
1674
+ Burkhardt,
1675
+ M.,
1676
+ &
1677
+ Kuster,
1678
+ N.
1679
+ (1998).
1680
+ Differences in energy absorption between heads of adults
1681
+ and children in the near field of sources. Health Physics,
1682
+ 74, 160–168.
1683
+ Smythe, J. W., & Costall, B. (2003). Mobile phone use facili-
1684
+ tates
1685
+ memory
1686
+ in
1687
+ male,
1688
+ but
1689
+ not
1690
+ female,
1691
+ subjects.
1692
+ Neuroreport, 14, 243–246.
1693
+ Stroop, J. R. (1935). Studies of interference in serial verbal
1694
+ reactions.Journal of experimental psychology, 18, 643.
1695
+ Subramanya, P., & Telles, S. (2009). A review of the scien-
1696
+ tific studies on cyclic meditation. International Journal of
1697
+ Yoga, 2, 46–48.
1698
+ Taniguchi, K., Sumitani, S., Watanabe, Y., Akiyama, M., &
1699
+ Ohmori,
1700
+ T.
1701
+ (2012).
1702
+ Multi-channel
1703
+ near-infrared
1704
+ spectroscopy
1705
+ reveals
1706
+ reduced
1707
+ prefrontal
1708
+ activation
1709
+ in
1710
+ schizophrenia patients during performance of the kana
1711
+ Stroop task. The Journal of Medical Investigation, 59,
1712
+ 45–52.
1713
+ Taylor, S. F., Kornblum, S., Lauber, E. J., Minoshima, S., &
1714
+ Koeppe, R. A. (1997). Isolation of specific interference
1715
+ processing in the Stroop task: PET activation studies.
1716
+ Neuroimage, 6, 81–92.
1717
+ Telles, S., Nagarathna, R., & Nagendra, H. R. (1994).
1718
+ Alterations in auditory middle latency evoked potentials
1719
+ during
1720
+ meditation
1721
+ on
1722
+ a
1723
+ meaningful
1724
+ symbol
1725
+ ‘‘OM’’.
1726
+ International Journal of Neuroscience, 76, 87–93.
1727
+ Wolf, M., Haensse, D., Morren, G., & Froehlich, J. (2006).
1728
+ Do GSM 900MHz signals affect cerebral blood circula-
1729
+ tion? A near-infrared spectrophotometry study. Optics
1730
+ Express, 14, 6128–6141.
1731
+ 298
1732
+ H. BHARGAV ET AL.
1733
+ Downloaded by [14.139.155.82] at 04:08 27 July 2016
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@@ -0,0 +1,1710 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ International Journal of
2
+ Psychophysiology, 15 (1993) 147-152
3
+ 0 1993 Elsevier
4
+ Science
5
+ Publishers
6
+ B.V. All rights reserved
7
+ 0167-8760/93/$06.00
8
+ 147
9
+ INTPSY
10
+ 00471
11
+ Autonomic changes in Brahmakumaris
12
+ Raja yoga meditation
13
+ Shirley Telles and T. Desiraju
14
+ Department of Neurophysiology, National Institute of Mental Health and Neuroscience& Bangalore (India)
15
+ (Accepted
16
+ 4 May 1993)
17
+ Key words: Autonomic
18
+ change;
19
+ Meditation;
20
+ Heart
21
+ rate; Skin resistance;
22
+ Finger plethysmogram;
23
+ Respiratory
24
+ rate
25
+ This report
26
+ presents
27
+ the changes
28
+ in various
29
+ autonomic
30
+ and respiratory
31
+ variables
32
+ during
33
+ the practice
34
+ of Brahmakumaris
35
+ Raja
36
+ yoga meditation.
37
+ This practice
38
+ requires
39
+ considerable
40
+ commitment
41
+ and involves concentrated
42
+ thinking.
43
+ 18 males in the age range of
44
+ 20 to 52 years (mean 34.1 5 8.1), with 5-25 years experience
45
+ in mediation
46
+ (mean
47
+ 10.1 f 6.2). participated
48
+ in the study. Each subject
49
+ was assessed
50
+ in three test sessions which included
51
+ a period of meditation,
52
+ and also in three control
53
+ (non-meditation)
54
+ sessions, which
55
+ included
56
+ a period
57
+ of random
58
+ thinking.
59
+ Group
60
+ analysis
61
+ showed
62
+ that the heart
63
+ rate during
64
+ the meditation
65
+ period
66
+ was increased
67
+ compared
68
+ to the preceding
69
+ baseline
70
+ period,
71
+ as well as compared
72
+ to the value during
73
+ the non-meditation
74
+ period of control
75
+ sessions.
76
+ In contrast
77
+ to the change
78
+ in the heart rate, there was no significant
79
+ change
80
+ during
81
+ meditation,
82
+ for the group
83
+ as a whole, in palmar
84
+ GSR, finger plethysmogram
85
+ amplitude,
86
+ and respiratory
87
+ rate. On an individual
88
+ basis, changes
89
+ which met the following
90
+ criteria
91
+ were
92
+ noted: (11, changes
93
+ which were greater
94
+ during
95
+ meditation
96
+ (compared
97
+ to its preceding
98
+ baseline)
99
+ than changes
100
+ during post meditation
101
+ or non-meditation
102
+ periods
103
+ (also compared
104
+ to their preceding
105
+ baseline);
106
+ (2), Changes
107
+ which occurred
108
+ consistently
109
+ during
110
+ the three
111
+ repeat
112
+ sessions
113
+ of a subject
114
+ and (3), changes
115
+ which
116
+ exceeded
117
+ arbitrarily-chosen
118
+ cut-off
119
+ points
120
+ (described
121
+ at length
122
+ below).
123
+ This
124
+ individual
125
+ level analysis
126
+ revealed
127
+ that
128
+ changes
129
+ in autonomic
130
+ variables
131
+ suggestive
132
+ of both
133
+ activation
134
+ and
135
+ relaxation
136
+ occurred
137
+ simultaneously
138
+ in different
139
+ subdivisions
140
+ of the autonomic
141
+ nervous
142
+ system in a subject.
143
+ Apart
144
+ from this, there were differences
145
+ in
146
+ patterns
147
+ of change
148
+ among
149
+ the subjects
150
+ who practised
151
+ the same meditation.
152
+ Hence,
153
+ a single model
154
+ of sympathetic
155
+ activation
156
+ or
157
+ overall
158
+ relaxation
159
+ may be inadequate
160
+ to describe
161
+ the physiological
162
+ effects of a meditation
163
+ technique.
164
+ INTRODUCTION
165
+ Most of the reports
166
+ on physiological
167
+ effects of
168
+ meditation
169
+ have dealt with Transcendental
170
+ Medi-
171
+ tation
172
+ (TM),
173
+ Zen
174
+ and
175
+ Tantric
176
+ Yoga.
177
+ TM
178
+ was
179
+ adapted
180
+ from the Indian
181
+ Yogic tradition
182
+ by Ma-
183
+ harishi
184
+ Mahesh
185
+ Yogi. Practising
186
+ TM, subjects
187
+ sit
188
+ in a comfortable
189
+ posture
190
+ and
191
+ silently
192
+ repeat
193
+ a
194
+ given
195
+ mantram,
196
+ returning
197
+ their
198
+ attention
199
+ to it
200
+ whenever
201
+ attention
202
+ wanders.
203
+ Zen
204
+ meditation
205
+ forms an integral
206
+ part of Zen Buddhism.
207
+ Subjects
208
+ sit in the lotus position,
209
+ keep their eyes open and
210
+ their attention
211
+ focussed
212
+ (initially
213
+ on their breath-
214
+ Correspondence
215
+ to: S. Telles,
216
+ Vivekananda
217
+ Kendra
218
+ Yoga
219
+ Research
220
+ Foundation,
221
+ No. 9, Appajappa
222
+ Agrahara,
223
+ Cham-
224
+ arajpet,
225
+ Bangalore-560018.
226
+ India.
227
+ ing, and later on, on a ‘Koan’ or riddle).
228
+ Tantric
229
+ Yoga involves
230
+ intense
231
+ concentration
232
+ of attention,
233
+ with the ultimate
234
+ aim of channelling
235
+ all of ones
236
+ energies
237
+ into the spiritual
238
+ energy
239
+ of union
240
+ with
241
+ the object of devotion.
242
+ The
243
+ practice
244
+ of TM was reported
245
+ to cause
246
+ reductions
247
+ in heart
248
+ rate,
249
+ respiratory
250
+ rate,
251
+ and
252
+ oxygen consumption,
253
+ and to increase
254
+ the level or
255
+ stability
256
+ of the electrodermal
257
+ response
258
+ (Wallace,
259
+ 1970; Wallace
260
+ et al., 1971). A later report
261
+ (Heide,
262
+ 1986), noted
263
+ a difference
264
+ in the heart-rate
265
+ re-
266
+ sponse
267
+ but
268
+ not
269
+ in the
270
+ electrodermal
271
+ response
272
+ evoked
273
+ by 80 dB tones,
274
+ when
275
+ TM practitioners
276
+ and non-meditators
277
+ were compared.
278
+ Contradictory
279
+ results
280
+ were
281
+ observed
282
+ in Zen
283
+ and Tantric
284
+ meditations.
285
+ One
286
+ set of studies
287
+ re-
288
+ ported
289
+ changes
290
+ suggestive
291
+ of autonomic
292
+ activa-
293
+ tion
294
+ (Hirai,
295
+ 1974; Corby
296
+ et al., 19781, whereas
297
+ 148
298
+ another
299
+ set of studies
300
+ reported
301
+ changes
302
+ sugges-
303
+ tive of autonomic
304
+ relaxation
305
+ (Kasamatsu
306
+ and Hi-
307
+ rai, 1966; Sugi and Akutsu,
308
+ 1968; Elson
309
+ et al.,
310
+ 1977)
311
+ With
312
+ the background
313
+ of contradictory
314
+ reports
315
+ on the effects of meditation
316
+ techniques,
317
+ the pre-
318
+ sent study was carried
319
+ out to determine
320
+ whether
321
+ a given meditation
322
+ technique
323
+ would
324
+ bring
325
+ about
326
+ the same effects
327
+ in all the subjects
328
+ practising
329
+ it.
330
+ Practitioners
331
+ with 5 or more years of experience
332
+ in Brahmakumaris
333
+ Raja
334
+ yoga
335
+ meditation
336
+ were
337
+ chosen.
338
+ This
339
+ technique
340
+ requires
341
+ considerable
342
+ commitment
343
+ and involves
344
+ concentrated
345
+ thinking.
346
+ METHODS
347
+ Subjects
348
+ 18 healthy
349
+ male volunteers
350
+ participated
351
+ in this
352
+ study They were between
353
+ 20 and 52 years (mean
354
+ & S.D. was 34.1 t- 8.1 years),
355
+ and they had 5-25
356
+ years
357
+ experience
358
+ of the
359
+ meditation
360
+ procedure
361
+ (mean + S.D.
362
+ was
363
+ 10.1 f 6.2 years).
364
+ The
365
+ study
366
+ was explained
367
+ to the subjects
368
+ and
369
+ their
370
+ signed
371
+ informed
372
+ consent
373
+ was taken,
374
+ according
375
+ to the
376
+ ethics laid down by the Indian
377
+ Council
378
+ of Medical
379
+ Research;
380
+ New Delhi.
381
+ Meditation
382
+ The Brahmakumaris
383
+ Raja (= Raj) yoga medi-
384
+ tation
385
+ (BK) has spread
386
+ from
387
+ the organisation’s
388
+ headquarters
389
+ at Mount
390
+ Abu
391
+ (Rajasthan,
392
+ India)
393
+ throughout
394
+ India,
395
+ and to other
396
+ countries
397
+ as well.
398
+ During
399
+ meditation,
400
+ subjects
401
+ sit in a comfortable
402
+ posture
403
+ with their eyes open, and with gaze fixed
404
+ on a meaningful
405
+ symbol
406
+ (a light).
407
+ At the same
408
+ time they actively think positive
409
+ thoughts
410
+ about
411
+ a
412
+ Universal
413
+ force
414
+ pervading
415
+ all over,
416
+ as light
417
+ and
418
+ peace (Easy Raj Yoga, 1981).
419
+ Test sessions
420
+ Each
421
+ subject
422
+ was
423
+ assessed
424
+ in two types
425
+ of
426
+ session
427
+ involving
428
+ either
429
+ a meditation
430
+ period
431
+ (with
432
+ targetted
433
+ thinking)
434
+ or a non-meditation
435
+ period
436
+ (with random
437
+ thinking).
438
+ Each type of session
439
+ was
440
+ repeated
441
+ thrice on different
442
+ days, but at the same
443
+ time of day.
444
+ During
445
+ the recording
446
+ session
447
+ the subject
448
+ sat in
449
+ a comfortable
450
+ chair in a dimly-lit,
451
+ air-conditioned
452
+ and
453
+ sound-attenuated
454
+ cabin.
455
+ Subjects
456
+ were
457
+ ob-
458
+ served
459
+ throughout
460
+ on a closed-circuit
461
+ television.
462
+ Each session was of 36 min duration,
463
+ of which 24
464
+ min
465
+ was spent
466
+ in meditation
467
+ (with
468
+ eyes open)
469
+ preceded
470
+ and followed
471
+ by 6-min periods
472
+ of relax-
473
+ ation,
474
+ also with eyes open. These
475
+ meditation
476
+ ses-
477
+ sions
478
+ were
479
+ repeated
480
+ thrice
481
+ by each
482
+ subject
483
+ on
484
+ different
485
+ days. In addition,
486
+ there were also three
487
+ non-meditation
488
+ (‘control’)
489
+ sessions,
490
+ which
491
+ were
492
+ similar
493
+ in design,
494
+ except
495
+ that
496
+ the period
497
+ corre-
498
+ sponding
499
+ to the 24 min of meditation
500
+ was spent
501
+ sitting
502
+ relaxed,
503
+ without
504
+ targetted
505
+ thinking.
506
+ Data acquisition
507
+ and analysis
508
+ Recordings
509
+ were
510
+ made
511
+ on Grass
512
+ model
513
+ 78D
514
+ polygraph.
515
+ EKG
516
+ was recorded
517
+ using
518
+ a standard
519
+ limb lead
520
+ II configuration.
521
+ Skin resistance
522
+ (SR)
523
+ was recorded
524
+ with AgCl
525
+ disc electrodes
526
+ placed
527
+ approx.
528
+ 4 cm apart
529
+ on the palmar
530
+ surface
531
+ of the
532
+ right hand.
533
+ Electrode
534
+ gel CSR (Technocarta,
535
+ Hy-
536
+ derabad,
537
+ India)
538
+ was used, and a constant
539
+ current
540
+ of 10 PA was passed.
541
+ Finger
542
+ plethysmogram
543
+ am-
544
+ plitude
545
+ was recorded
546
+ with a photo-cell
547
+ transducer
548
+ kept at the base of the right thumb
549
+ nail. Respira-
550
+ tion was recorded
551
+ via a rubber
552
+ stethograph
553
+ con-
554
+ nected
555
+ through
556
+ a pressure
557
+ transducer.
558
+ In addition,
559
+ the EEG was recorded
560
+ from elec-
561
+ trodes
562
+ placed
563
+ at F3, F4, 01 and 02, referenced
564
+ to the contralateral
565
+ earlobe.
566
+ Also, EOG
567
+ and chin
568
+ EMG
569
+ were recorded
570
+ as is usual
571
+ for sleep-stage
572
+ scoring
573
+ (Rechtschaffen
574
+ and
575
+ Kales,
576
+ 1968).
577
+ This
578
+ allowed
579
+ any sleep
580
+ episodes
581
+ to be detected
582
+ and
583
+ excluded
584
+ from the analysed
585
+ data.
586
+ The SR values
587
+ were sampled
588
+ at 20-s intervals
589
+ from the continuously
590
+ acquired
591
+ record.
592
+ The heart
593
+ rate
594
+ was obtained
595
+ by counting
596
+ the
597
+ number
598
+ of
599
+ QRS complexes
600
+ occurring
601
+ in successive
602
+ epochs of
603
+ 40-s periods
604
+ analysed
605
+ throughout.
606
+ The respiratory
607
+ rate was calculated
608
+ from the record
609
+ by counting
610
+ the breath
611
+ cycles in successive
612
+ 40-s epochs contin-
613
+ uously.
614
+ 20 s or its multiple
615
+ (i.e., 40 s) time epochs
616
+ were
617
+ used while
618
+ calculating
619
+ SR, heart
620
+ rate
621
+ and
622
+ respiratory
623
+ rate to make
624
+ it feasible
625
+ to correlate
626
+ these data with that of EEG
627
+ acquired
628
+ simultane-
629
+ ously and subjected
630
+ to computerized
631
+ power spec-
632
+ tral analysis
633
+ in 20-s epochs.
634
+ For the present
635
+ group
636
+ of meditators
637
+ the EEG data have been presented
638
+ elsewhere
639
+ (Kulkarni
640
+ et al., 1988), and have not
641
+ been
642
+ reiterated
643
+ here
644
+ as no interesting
645
+ correla-
646
+ tions
647
+ emerged
648
+ between
649
+ autonomic
650
+ and
651
+ EEG
652
+ changes.
653
+ The
654
+ finger
655
+ plethysmogram
656
+ amplitude
657
+ was calculated
658
+ from measurements
659
+ made
660
+ on 20
661
+ plethysmogram
662
+ waves picked up randomly
663
+ in each
664
+ 6-min period.
665
+ Data
666
+ analysis
667
+ was done
668
+ in two ways, viz., (I),
669
+ For the group as a whole two statistical
670
+ tests were
671
+ used. (a), A two-factor
672
+ (Factor
673
+ A, meditation
674
+ vs.
675
+ non-meditation
676
+ and
677
+ Factor
678
+ B, pre
679
+ vs. during)
680
+ ANOVA
681
+ was carried
682
+ out to assess the effects of
683
+ both factors,
684
+ as well as the interaction
685
+ of all four
686
+ variables
687
+ listed
688
+ above
689
+ (Snedecor
690
+ and
691
+ Cochran,
692
+ 1967; Zar, 1984). (b), A paired
693
+ t-test (two-tailed)
694
+ 149
695
+ was performed
696
+ on the averaged
697
+ data. The values
698
+ of each variable
699
+ obtained
700
+ in the three meditation
701
+ sessions of a subject were averaged
702
+ for: (a>, the-24
703
+ min period
704
+ of meditation;
705
+ (b), the corresponding
706
+ 24 min period
707
+ of a non-meditation
708
+ session;
709
+ (cl,
710
+ the baseline
711
+ state of the 6-min period
712
+ in the eyes
713
+ open state preceding
714
+ the meditation,
715
+ or the non-
716
+ meditation
717
+ period
718
+ in the corresponding
719
+ type of
720
+ sessions
721
+ and
722
+ (d), the post-meditation
723
+ (or post-
724
+ non-meditation
725
+ period).
726
+ The
727
+ averaged
728
+ data
729
+ of
730
+ each of the 18 meditators
731
+ were subjected
732
+ to the
733
+ paired
734
+ t-test
735
+ (two-tailed)
736
+ to assess
737
+ at the group
738
+ level whether
739
+ the following
740
+ comparisons
741
+ were sig-
742
+ nificantly
743
+ different:
744
+ (a>, meditation
745
+ period
746
+ and its
747
+ preceding
748
+ (eyes open)
749
+ baseline
750
+ period;
751
+ (b), non-
752
+ meditation
753
+ period
754
+ and its preceding
755
+ (eyes open)
756
+ TABLE
757
+ I
758
+ Heart rate in different conditions of the meditation and non-meditation sessions of the 18 subjects
759
+ M, meditation
760
+ period;
761
+ pre-M,
762
+ period
763
+ preceding
764
+ Meditation;
765
+ NM, non-mediation
766
+ period;
767
+ n, number
768
+ of values averaged
769
+ per subject;
770
+ pre-NM,
771
+ period
772
+ preceding
773
+ Non-meditation;
774
+ n.s., not significant.
775
+ Subject
776
+ &e
777
+ Meditation
778
+ Heart rate per 40 s (mean i S. D.)
779
+ (years)
780
+ experience
781
+ ,
782
+ f
783
+ years)
784
+ Pre-M
785
+ M
786
+ Pre-NM
787
+ NM
788
+ (n = 20)
789
+ (n = 80)
790
+ (n = 20)
791
+ (n = 80)
792
+ DRN
793
+ 38
794
+ 8
795
+ RR
796
+ 48
797
+ 18
798
+ NAR
799
+ 28
800
+ 8
801
+ MNH
802
+ 28
803
+ 5
804
+ NLN
805
+ 40
806
+ 16
807
+ AM
808
+ 30
809
+ 9
810
+ MN
811
+ 52
812
+ 15
813
+ MG
814
+ 29
815
+ 5
816
+ JGN
817
+ 34
818
+ 10
819
+ SM
820
+ 41
821
+ 5
822
+ DP
823
+ 20
824
+ 8
825
+ su
826
+ 38
827
+ 6
828
+ SVP
829
+ 30
830
+ 5
831
+ AC
832
+ 31
833
+ 18
834
+ AG
835
+ 36
836
+ 15
837
+ FE
838
+ 22
839
+ 5
840
+ MR
841
+ 33
842
+ 15
843
+ GA
844
+ 35
845
+ 25
846
+ Mean k S.D.
847
+ Paird
848
+ t-test
849
+ (two-tailed)
850
+ on data of
851
+ whole group
852
+ 51.4 + 2.8
853
+ 42.1 * 0.8
854
+ 50.4 * 3.9
855
+ 51.5 f 1.6
856
+ 44.6 f 2.6
857
+ 54.4 f 0.6
858
+ 56.4 * 0.9
859
+ 50.5 f 3.5
860
+ 40.9 f 3.1
861
+ 42.8 k 3.9
862
+ 61.0 + 2.5
863
+ 63.0 + 6.1
864
+ 53.3 f 1.6
865
+ 53.4 * 0.3
866
+ 62.2 k 1.6
867
+ 39.0 * 1.4
868
+ 48.5 + 0.7
869
+ 49.2 k 4.7
870
+ 50.81 f 7.1
871
+ 51.5 k 2.7
872
+ 43.3 k 1.8
873
+ 52.6 f 4.0
874
+ 57.5 f 2.3
875
+ 45.1 f 1.8
876
+ 60.0 k 2.7
877
+ 55.6 * 0.8
878
+ 54.9 * 2.9
879
+ 48.3 f 3.0
880
+ 43.5 f 3.5
881
+ 60.3 + 3.5
882
+ 62.5 f 5.1
883
+ 51.7 k 2.1
884
+ 54.1 f 1.3
885
+ 65.2 + 2.0
886
+ 41.5 * 0.9
887
+ 48.6 f 1.1
888
+ 51.8 f 3.6
889
+ 52.7 + 6.8
890
+ t (17) 2.66
891
+ P < 0.02
892
+ (M vs. pre-M)
893
+ 49.6 + 1.9
894
+ 42.9 f 5.0
895
+ 53.6 i 3.9
896
+ 47.6 k 2.9
897
+ 45.8 k 3.6
898
+ 54.9 + 5.5
899
+ 55.9 f 0.8
900
+ 51.6 f 2.9
901
+ 47.4 f 0.6
902
+ 41.6 + 1.9
903
+ 54.1 f 1.6
904
+ 58.3 + 5.0
905
+ 51.2 k 1.5
906
+ 51.2 f 0.7
907
+ 59.8 + 0.7
908
+ 42.1 f 2.7
909
+ 47.8 f 3.4
910
+ 47.7 + 5.5
911
+ 50.2 * 5.3
912
+ 49.9 * 3.3
913
+ 43.2 f 4.5
914
+ 55.5 + 5.9
915
+ 47.7 k 2.4
916
+ 45.3 + 3.2
917
+ 53.9 f 5.1
918
+ 55.2 k 0.9
919
+ 51.9 * 1.9
920
+ 45.8 + 1.8
921
+ 42.0 k 2.5
922
+ 53.5 * 1.4
923
+ 58.5 k 5.1
924
+ 50.1 * 2.0
925
+ 50.2 k 1.8
926
+ 58.9 f 1.4
927
+ 42.5 + 1.6
928
+ 48.5 f 3.0
929
+ 45.7 f 4.7
930
+ 49.9 * 5.3
931
+ t (17) 1.19
932
+ n.s.
933
+ (NM vs. pre-NM)
934
+ Note: paired
935
+ t-test (two-tailed)
936
+ M vs. NM, t (17) 3.84 P < 0.01.
937
+ 150
938
+ baseline
939
+ period;
940
+ (cl, meditation
941
+ period
942
+ and non-
943
+ meditation
944
+ period
945
+ and
946
+ Cd), post-meditation
947
+ pe-
948
+ riod and pre-meditation
949
+ period.
950
+ (II),
951
+ On
952
+ an
953
+ individual
954
+ basis
955
+ data
956
+ were
957
+ also
958
+ examined
959
+ and changes
960
+ which
961
+ met the following
962
+ criteria
963
+ were
964
+ noted:
965
+ (a), changes
966
+ during
967
+ medita-
968
+ tion (compared
969
+ to the preceding
970
+ period)
971
+ should
972
+ exceed
973
+ those
974
+ during
975
+ post-meditation
976
+ or
977
+ non-
978
+ meditation
979
+ periods
980
+ (also compared
981
+ to the initial
982
+ baseline
983
+ period);
984
+ (b), changes
985
+ should
986
+ occur in one
987
+ direction,
988
+ consistently
989
+ during
990
+ the
991
+ three
992
+ repeat
993
+ sessions
994
+ of a subject
995
+ and Cc), in order
996
+ to quantify
997
+ the change,
998
+ arbitrary
999
+ cut-off
1000
+ points
1001
+ were selected
1002
+ for each variable
1003
+ as follows: changes
1004
+ in heart rate
1005
+ should
1006
+ be equal
1007
+ to/more
1008
+ than
1009
+ 2 beats
1010
+ per 40 s,
1011
+ similarly
1012
+ for respiration,
1013
+ a change
1014
+ equal to/more
1015
+ than one breath
1016
+ per 40 s, for SR a change
1017
+ equal
1018
+ to/more
1019
+ than
1020
+ 10 k0;
1021
+ and for finger
1022
+ plethysmo-
1023
+ gram amplitude
1024
+ a change
1025
+ equal
1026
+ to or more than
1027
+ 0.40 cm.
1028
+ RESULTS
1029
+ Heart rate
1030
+ Group analysis. The
1031
+ two-factor
1032
+ ANOVA
1033
+ did
1034
+ not reveal significance
1035
+ of (a), meditation
1036
+ vs. non-
1037
+ meditation
1038
+ (F = 1.35); (b), states (pre vs. during)
1039
+ (F = 0.31)
1040
+ or (c), interaction
1041
+ between
1042
+ the
1043
+ two
1044
+ factors
1045
+ (F = 0.50).
1046
+ In contrast,
1047
+ with
1048
+ the paired
1049
+ t-test,
1050
+ comparison
1051
+ of the data of meditation
1052
+ (Ml
1053
+ against
1054
+ pre-meditation
1055
+ (pre-M)
1056
+ for the
1057
+ 18 sub-
1058
+ jects as a group
1059
+ showed
1060
+ that the heart
1061
+ rate was
1062
+ increased
1063
+ by 2.1 beats per 40 s during
1064
+ M, and the
1065
+ difference
1066
+ was significant
1067
+ (P < 0.02) (see the last
1068
+ row of the column
1069
+ M of Table
1070
+ I). There
1071
+ was no
1072
+ significant
1073
+ change during
1074
+ the non-mediation
1075
+ (NM)
1076
+ period compared
1077
+ to its preceding
1078
+ baseline
1079
+ (paired
1080
+ t-test,
1081
+ two-tailed,
1082
+ see the last row of the column
1083
+ NM of Table
1084
+ I). A third comparison
1085
+ (M vs. NM)
1086
+ revealed
1087
+ that
1088
+ the heart
1089
+ rate during
1090
+ M was also
1091
+ significantly
1092
+ higher
1093
+ than
1094
+ during
1095
+ NM (P < 0.01,
1096
+ paired
1097
+ t-test, two-tailed,
1098
+ last row of the column
1099
+ of
1100
+ the extreme
1101
+ right of Table
1102
+ I). Also, since one way
1103
+ of removing
1104
+ the regression
1105
+ of each treatment
1106
+ on
1107
+ its baseline
1108
+ is to analyse
1109
+ the change
1110
+ score of heart
1111
+ rate of the 18 subjects
1112
+ CM-pre-M
1113
+ vs. NM-pre-
1114
+ NM). These data were subjected
1115
+ to analysis
1116
+ using
1117
+ the paired
1118
+ t-test, which revealed
1119
+ that the change
1120
+ scores
1121
+ of
1122
+ M
1123
+ (mean
1124
+ = + 1.4 change
1125
+ of
1126
+ heart
1127
+ rate/40
1128
+ s) were
1129
+ significantly
1130
+ different
1131
+ from
1132
+ the
1133
+ change
1134
+ scores of the NM condition
1135
+ (mean = 0.3
1136
+ change
1137
+ of heart rate/40
1138
+ s (t (17) 2.97, P < 0.01).
1139
+ Also, the heart-rate
1140
+ values of the meditation
1141
+ con-
1142
+ dition have a significant
1143
+ correlation
1144
+ with the base-
1145
+ line value
1146
+ of the subjects
1147
+ obtained
1148
+ in the pre-
1149
+ meditation
1150
+ period
1151
+ (r = 0.94, P < 0.001 (2)), or in
1152
+ the pre non-meditation
1153
+ sitting
1154
+ period
1155
+ (r = 0.93,
1156
+ P < 0.001 (2)).
1157
+ Individual analysis. The heart-rate
1158
+ data of each
1159
+ subject
1160
+ were also examined
1161
+ separately.
1162
+ Based on
1163
+ the three criteria
1164
+ mentioned
1165
+ above (Methods
1166
+ sec-
1167
+ tion,
1168
+ under
1169
+ data
1170
+ analysis),
1171
+ it was noted
1172
+ that
1173
+ in
1174
+ eight
1175
+ subjects
1176
+ there
1177
+ was a definite
1178
+ trend
1179
+ of in-
1180
+ crease
1181
+ in heart
1182
+ rate during
1183
+ M, whereas
1184
+ one sub-
1185
+ ject showed
1186
+ a decrease
1187
+ in heart
1188
+ rate during
1189
+ NM.
1190
+ Other parameters
1191
+ (SR, finger plethysmogram am-
1192
+ plitude, respiratory rate)
1193
+ Group
1194
+ analysis (using both two factor ANOVA,
1195
+ as well
1196
+ as the
1197
+ paired
1198
+ t-test>
1199
+ did
1200
+ not
1201
+ reveal
1202
+ a
1203
+ significant
1204
+ effect
1205
+ of meditation
1206
+ compared
1207
+ to its
1208
+ preceding
1209
+ baseline,
1210
+ or to the non-meditation
1211
+ pe-
1212
+ riod (P > 0.10 for both tests and in all the com-
1213
+ parisons
1214
+ described
1215
+ in detail
1216
+ for heart rate).
1217
+ The group mean
1218
+ &S.D. values for these three
1219
+ variables
1220
+ were as follows (11, SR; pre-M = 256.5
1221
+ + 62.1 kR,
1222
+ M = 246.3 + 55.8 K, pre-NM
1223
+ = 264.3
1224
+ f 47.6 K, and NM = 271.3 + 41.3 K. (2), Respira-
1225
+ tory rate; pre-M = 12.1 + 2.4 breaths/40
1226
+ s, M =
1227
+ 13.4 t- 3.5
1228
+ breaths/40
1229
+ s,
1230
+ pre-NM
1231
+ = 11.9 + 1.8
1232
+ breaths/40
1233
+ s, and NM = 12.2 k 2.3 breaths/40
1234
+ s.
1235
+ (31, Finger
1236
+ plethysmogram
1237
+ amplitude;
1238
+ pre-M =
1239
+ 1.68 k 0.74 cm, M = 1.24 f 0.64 cm, pre-NM
1240
+ =
1241
+ 1.72 + 0.71 cm, and NM = 1.66 + 0.56 cm..
1242
+ Individual
1243
+ level
1244
+ analysis
1245
+ (based
1246
+ on the three
1247
+ criteria
1248
+ cited
1249
+ in the Methods
1250
+ section)
1251
+ has been
1252
+ summarized
1253
+ in Table
1254
+ II.
1255
+ It is given
1256
+ below
1257
+ in
1258
+ detail.
1259
+ Cl), SR; During
1260
+ M, 5 subjects
1261
+ showed
1262
+ a
1263
+ decrease
1264
+ and 3 showed
1265
+ an increase.
1266
+ In contrast,
1267
+ during
1268
+ NM 7 subjects
1269
+ showed an increase
1270
+ and 3 a
1271
+ decrease.
1272
+ (2), Respiratory-rate
1273
+ changes
1274
+ occurred
1275
+ during
1276
+ M (but
1277
+ not during
1278
+ NM),
1279
+ i.e., 4 subjects
1280
+ showed
1281
+ a decrease,
1282
+ one showed
1283
+ a increase.
1284
+ (3),
1285
+ Finger
1286
+ plethysmogram
1287
+ amplitude;
1288
+ during
1289
+ M, 4
1290
+ 151
1291
+ TABLE
1292
+ II
1293
+ Changes in heart rate, palmar GSR, finger plethysmogram am-
1294
+ plitude and respiratory rate based on individual leuel analysis
1295
+ I, increase;
1296
+ D, decrease;
1297
+ M, Meditation
1298
+ period;
1299
+ Pre-M, period
1300
+ preceding
1301
+ meditation;
1302
+ NM, nonmeditation
1303
+ period;
1304
+ pre-NM,
1305
+ period
1306
+ preceding
1307
+ non-mediation
1308
+ period.
1309
+ Parameter
1310
+ Number of subjects showing change
1311
+ M against
1312
+ NM against
1313
+ pre-M
1314
+ pre-NM
1315
+ I
1316
+ D
1317
+ I
1318
+ D
1319
+ Heart
1320
+ rate
1321
+ 8
1322
+ 0
1323
+ 0
1324
+ 1
1325
+ Palmar
1326
+ SR
1327
+ 3
1328
+ 5
1329
+ 7
1330
+ 3
1331
+ Finger
1332
+ plethysmogram
1333
+ amplitude
1334
+ 0
1335
+ 4
1336
+ 2
1337
+ 0
1338
+ Respiratory
1339
+ rate
1340
+ 1
1341
+ 4
1342
+ 0
1343
+ 0
1344
+ subjects
1345
+ showed
1346
+ a decrease,
1347
+ whereas
1348
+ 2 subjects
1349
+ showed an increase
1350
+ during
1351
+ NM.
1352
+ DISCUSSION
1353
+ The most
1354
+ important
1355
+ finding
1356
+ of this study
1357
+ on
1358
+ the effects of Brahmakumaris
1359
+ Raja yoga medita-
1360
+ tion was a small (but consistent)
1361
+ increase
1362
+ in the
1363
+ heart
1364
+ rate
1365
+ during
1366
+ meditation,
1367
+ compared
1368
+ to the
1369
+ preceding
1370
+ period,
1371
+ as well
1372
+ as compared
1373
+ to the
1374
+ non-meditation
1375
+ period.
1376
+ In contrast,
1377
+ changes
1378
+ in
1379
+ respiratory
1380
+ rate, finger plethysmogram
1381
+ amplitude
1382
+ and SR were fewer and often
1383
+ in opposite
1384
+ direc-
1385
+ tions for the subjects
1386
+ practising
1387
+ the same medita-
1388
+ tion. However,
1389
+ they were consistent
1390
+ during
1391
+ repeat
1392
+ sessions
1393
+ of a subject.
1394
+ These individual
1395
+ differences
1396
+ did not seem to be correlated
1397
+ with differences
1398
+ in
1399
+ age, duration
1400
+ of meditation
1401
+ experience,
1402
+ or com-
1403
+ mitment
1404
+ to meditation.
1405
+ Individual
1406
+ differences
1407
+ in
1408
+ autonomic
1409
+ response
1410
+ specificity
1411
+ have been
1412
+ known
1413
+ for a long time. Detailed
1414
+ descriptions
1415
+ have shown
1416
+ that autonomic
1417
+ responses
1418
+ are a function
1419
+ of both
1420
+ the
1421
+ evoking
1422
+ stimulus
1423
+ (stimulus-response
1424
+ speci-
1425
+ ficity) and of the responding
1426
+ individual
1427
+ (individ-
1428
+ ual response
1429
+ specifity
1430
+ (Engel,
1431
+ 1960). It is interest-
1432
+ ing to speculate
1433
+ that the contradictory
1434
+ reports
1435
+ on
1436
+ Transcendental
1437
+ Meditation
1438
+ (TM),
1439
+ Zen,
1440
+ and
1441
+ Tantric
1442
+ yoga,
1443
+ described
1444
+ in the
1445
+ Introduction
1446
+ as
1447
+ either ‘activating’
1448
+ or ‘relaxing’,
1449
+ may in fact be due
1450
+ to differences
1451
+ in the individual
1452
+ response
1453
+ patterns.
1454
+ Holmes
1455
+ (1984)
1456
+ commented
1457
+ that
1458
+ no
1459
+ studies
1460
+ showed
1461
+ consistent
1462
+ differences
1463
+ between
1464
+ resting
1465
+ and meditating
1466
+ subjects
1467
+ in heart rate, electroder-
1468
+ ma1 activity,
1469
+ respiratory
1470
+ rate
1471
+ and
1472
+ other
1473
+ similar
1474
+ variables.
1475
+ However,
1476
+ he stated
1477
+ that in 4 out of 16
1478
+ experiments,
1479
+ meditating
1480
+ subjects
1481
+ showed
1482
+ greater
1483
+ increases
1484
+ in heart
1485
+ rate than
1486
+ did resting
1487
+ subjects,
1488
+ and none
1489
+ showed
1490
+ decreases.
1491
+ In this study
1492
+ also,
1493
+ the most
1494
+ consistent
1495
+ change
1496
+ was an increase
1497
+ in
1498
+ heart
1499
+ rate during
1500
+ the practice
1501
+ of Brahmakumaris
1502
+ Raja
1503
+ yoga
1504
+ meditation
1505
+ which
1506
+ was suggestive
1507
+ of
1508
+ cardiosympathetic
1509
+ activation,
1510
+ and a possible
1511
+ sign
1512
+ of psychophysiological
1513
+ arousal.
1514
+ This finding
1515
+ can
1516
+ be correlated
1517
+ with the fact that
1518
+ BK meditation
1519
+ requires
1520
+ intense
1521
+ involvement
1522
+ and concentration.
1523
+ The changes
1524
+ in the other variables
1525
+ (though
1526
+ often
1527
+ consistent
1528
+ for an individual)
1529
+ did not reveal
1530
+ any
1531
+ group pattern.
1532
+ These
1533
+ results
1534
+ suggest
1535
+ that use of some auto-
1536
+ nomic
1537
+ and respiratory
1538
+ variables
1539
+ (e.g., heart
1540
+ rate)
1541
+ may reveal
1542
+ group
1543
+ effects
1544
+ of meditation,
1545
+ whereas
1546
+ other variables
1547
+ can alter in an individualistic
1548
+ way.
1549
+ Hence,
1550
+ a single
1551
+ model
1552
+ of meditation
1553
+ producing
1554
+ either
1555
+ overall
1556
+ relaxation
1557
+ or overall
1558
+ activation
1559
+ is
1560
+ probably
1561
+ inadequate.
1562
+ REFERENCES
1563
+ Corby,
1564
+ J.C.,
1565
+ Roth,
1566
+ W.T.,
1567
+ Zarcone,
1568
+ V.P.
1569
+ and
1570
+ Kopell,
1571
+ B.S.
1572
+ (1978)
1573
+ Psychophysiological
1574
+ correlates
1575
+ of the practice
1576
+ of
1577
+ Tantric
1578
+ yoga meditation.
1579
+ Arch. Gen. Psychiatr., 35: 571-
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+ 577.
1581
+ Easy
1582
+ Raj
1583
+ yoga
1584
+ (1981)
1585
+ Prajapita Byahmakumaris
1586
+ Ishwariya
1587
+ Vishwa, Vidyalaya,
1588
+ Bombay,
1589
+ pp. 82 + 5.
1590
+ Elson,
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+ B.D.,
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+ Hauri,
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+ P., and
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+ Cunis,
1595
+ D. (1977)
1596
+ Physiological
1597
+ changes
1598
+ in Yoga meditation.
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+ Psychophysiology, 14: 52-57.
1600
+ Engel, B.T. (1960) Stimulus-response
1601
+ and individual-response
1602
+ specificity.
1603
+ Arch. Gen. Psychiatr 2: 305-313.
1604
+ Heide,
1605
+ F. (1986) Psychophysiological
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+ responsiveness
1607
+ to audi-
1608
+ tory stimulation
1609
+ during
1610
+ Transcendental
1611
+ Meditation.
1612
+ Pry-
1613
+ chophysiology, 23: 71-75.
1614
+ Hirai,
1615
+ T. (1974)
1616
+ The PsychophysioLogy of Zen, Igako
1617
+ Shoin,
1618
+ Tokyo.
1619
+ Holmes,
1620
+ D.S. (1984) Meditation
1621
+ and somatic
1622
+ arousal:
1623
+ A re-
1624
+ view of the experimental
1625
+ evidence.
1626
+ Am. Psychol. 39: l-10.
1627
+ Kasamatsu,
1628
+ A. and
1629
+ Hirai,
1630
+ T. (1966)
1631
+ An electroencephalo-
1632
+ graphic
1633
+ study on the Zen meditation
1634
+ (Zazen).
1635
+ Folio Psy-
1636
+ chiatr. Neural. Japonica, 20: 315-336.
1637
+ Kulkarni,
1638
+ D.D.,
1639
+ Ramachandra,
1640
+ M., Hanumanthaiah.
1641
+ B.H.,
1642
+ Narasimhalu,
1643
+ G.. Joseph,
1644
+ C. and Desiraju,
1645
+ T. (1988) EEG
1646
+ power
1647
+ changes
1648
+ in senior
1649
+ practitioners
1650
+ of Transcendental
1651
+ Meditation,
1652
+ Brahmakumaris
1653
+ Raja
1654
+ yoga
1655
+ and
1656
+ Pranayama.
1657
+ Ind. J. Physiol. Pharmacol., 32: 419-420.
1658
+ Rechtschaffen,
1659
+ A. and Kales,
1660
+ A. (1968).
1661
+ A Manual of stan-
1662
+ dard&d
1663
+ terminology, techniques, and scoring system of hu-
1664
+ man subjects, Public
1665
+ Health
1666
+ Service
1667
+ Government
1668
+ Printing
1669
+ Office,
1670
+ Washington,
1671
+ pp. 8-15.
1672
+ Snedecor,
1673
+ G.W.
1674
+ and Cochran,
1675
+ W.G.
1676
+ (1967) Statistical Meth-
1677
+ ods, Oxford
1678
+ & IBH, New Delhi, 593 pp.
1679
+ Sugi, Y. and Akutsu,
1680
+ K. (1968) Studies
1681
+ on respiration
1682
+ and
1683
+ energy
1684
+ metabolism
1685
+ during
1686
+ sitting
1687
+ in Zazen.
1688
+ Res. J. Phys.
1689
+ Edu., 12: 190-206.
1690
+ Wallace,
1691
+ R.K. (1970) Physiological
1692
+ effects
1693
+ of Transcendental
1694
+ Meditation.
1695
+ Science, 167: 1751-1754.
1696
+ Wallace,
1697
+ R.K.,
1698
+ Benson,
1699
+ H., and Wilson,
1700
+ A.F. (1971) A wake-
1701
+ ful hypometabollic
1702
+ physiologic
1703
+ state.
1704
+ Am. J. Physiol., 221:
1705
+ 795-799.
1706
+ Zar, J.H. (1984) Biostatistical analysis Prentice-Hall
1707
+ Interna-
1708
+ tional,
1709
+ Englewood
1710
+ Cliffs, pp. xiv + 718.
subfolder_0/CHANGES IN P300 FOLLOWING TWO YOGA BASED RELAXATION TECHNIQUES.txt ADDED
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+ This article was downloaded by:[Telles, shirley]
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+ On: 10 April 2008
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+ Access Details: [subscription number 792040367]
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+ Publisher: Informa Healthcare
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+ Informa Ltd Registered in England and Wales Registered Number: 1072954
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+ Publication details, including instructions for authors and subscription information:
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+ http://www.informaworld.com/smpp/title~content=t713644851
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+ CHANGES IN P300 FOLLOWING TWO YOGA-BASED
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+ RELAXATION TECHNIQUES
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+ S. P. Sarang a; Shirley Telles a
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+ a Swami Vivekananda Yoga Research Foundation, Bangalore, India
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+ Online Publication Date: 01 December 2006
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+ To cite this Article: Sarang, S. P. and Telles, Shirley (2006) 'CHANGES IN P300
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+ FOLLOWING TWO YOGA-BASED RELAXATION TECHNIQUES', International
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+ Journal of Neuroscience, 116:12, 1419 - 1430
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+ To link to this article: DOI: 10.1080/00207450500514193
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+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
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+ Intern. J. Neuroscience, 116:1419–1430, 2006
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+ Copyright C
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+ ⃝2006 Informa Healthcare
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+ ISSN: 0020-7454 / 1543-5245 online
35
+ DOI: 10.1080/00207450500514193
36
+ CHANGES IN P300 FOLLOWING TWO
37
+ YOGA-BASED RELAXATION TECHNIQUES
38
+ S. P. SARANG
39
+ SHIRLEY TELLES
40
+ Swami Vivekananda Yoga Research Foundation
41
+ Bangalore, India
42
+ Cyclic meditation (CM) is a technique that combines “stimulating” and “calming”
43
+ practices, based on a statement in ancient yoga texts suggesting that such a
44
+ combination may be especially helpful to reach a state of mental equilibrium.
45
+ The changes in the peak latency and peak amplitude of P300 auditory event–related
46
+ potentials were studied before and after the practice of cyclic meditation compared
47
+ to an equal duration of supine rest in 42 volunteers (group mean age ± SD, 27 ±
48
+ 6.3 years), from Fz, Cz, and Pz electrode sites referenced to linked earlobes. The
49
+ sessions were one day apart and the order was alternated. There was reduction in
50
+ the peak latencies of P300 after cyclic meditation at Fz, Cz, and Pz compared to
51
+ the “pre” values. A similar trend of reduction in P300 peak latencies at Fz, Cz,
52
+ and Pz was also observed after supine rest, compared to the respective “pre” values,
53
+ although the magnitude of change in each case was less after supine rest compared to
54
+ after cyclic meditation. The P300 peak amplitudes after CM were higher at Fz, Cz,
55
+ and Pz sites compared to the “pre” values. In contrast, no significant changes were
56
+ observed in the P300 peak amplitudes at Fz, Cz, and Pz after supine rest compared
57
+ to the respective “pre” state. The present results support the idea that “cyclic”
58
+ meditation enhances cognitive processes underlying the generation of the P300.
59
+ Keywords cognitive processes, cyclic meditation, P300, supine rest
60
+ Received 14 October 2005.
61
+ Address correspondence to Shirley Telles, Ph.D., Swami Vivekananda Yoga Research
62
+ Foundation, #19, Eknath Bhavan, Gavipuram Circle, K. G. Nagar, Bangalore 560 019, India.
63
+ E-mail: [email protected]
64
+ 1419
65
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
66
+ 1420
67
+ S.P
68
+ . SARANG AND S. TELLES
69
+ INTRODUCTION
70
+ Meditation has been described as a training in awareness that, over long periods,
71
+ produces definite changes in perception, attention, and cognition (Brown,
72
+ 1977). Most of the early reports on the effects of meditation have dealt with
73
+ Transcendental Meditation (TM). TM was adapted from ancient Indian texts
74
+ by Maharishi Mahesh Yogi. While practicing TM, subjects sit in a comfortable
75
+ posture and mentally repeat a given mantra, returning their attention to it
76
+ whenever attention wanders (Woolfolk, 1975).
77
+ The practice of TM was reported to cause reductions in heart rate,
78
+ respiratory rate, and oxygen consumption, and to increase the level or stability
79
+ of the electrodermal response as well as the alpha in the EEG (Wallace,
80
+ 1970; Wallace et al., 1971). These changes were the basis for describing the
81
+ physiological state induced by TM as “wakeful and hypometabolic.” It was also
82
+ considered interesting to investigate whether TM would improve meditators’
83
+ overall performance while producing a state of reduced physiological arousal
84
+ (Bloomfield et al., 1975).
85
+ A study was conducted to compare three different measures of attention
86
+ in 20 people who had been practicing TM for 3 months and a matched control
87
+ group who were not practicing TM. The rationale for the study was that all types
88
+ of meditations are supposed to increase the ability to concentrate on external
89
+ tasks and objects (Pelletier, 1972). Meditators performed better on a test for:
90
+ (i) auto-kinetic effect suggesting a better ability to concentrate, (ii) in a rod and
91
+ frame test that suggested that they were more in tune with internal cues, and
92
+ (iii) in an embedded figure test that suggested a better ability to concentrate
93
+ without being distracted by surrounding factors.
94
+ More recently the effects of transcendent experiences, described to
95
+ occur during the practice of TM, were studied on the contingent negative
96
+ variation (CNV) amplitude, rebound, and distraction effects in 41 healthy
97
+ volunteers (Travis et al., 2002). CNV is an event-related potential occurring
98
+ between a warning stimulus and an imperative stimulus requiring a response
99
+ (Walter et al., 1964). Late CNV amplitudes were largest in meditators who
100
+ had transcendent experiences daily. Because late CNV reflects proactive
101
+ preparatory processes including mobilization of motor, perceptual, cognitive,
102
+ and attentional resources, the data were taken to suggest that transcendent
103
+ experiences enhance cortical responses and executive functioning.
104
+ Another meditation technique, called “cyclic meditation” (CM) that also
105
+ has its origin in ancient Yoga texts was shown to reduce oxygen consumption,
106
+ breath rate, and increase breath volume more than a comparable period of
107
+ supine rest (SR) in 40 male volunteers aged between 20 and 47 years. The
108
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
109
+ P300 AND YOGA TECHNIQUES
110
+ 1421
111
+ magnitude of change in these three measures was greater after CM: (i) oxygen
112
+ consumption decreased by 32.1 % after CM compared with 10.1% after SR;
113
+ (ii) breath rate decreased by 18.0% after CM and 15.2 % after SR; and (iii)
114
+ breath volume increased by 28.8% after CM and 15.9% after SR (Telles et al.,
115
+ 2000).
116
+ The present study was planned to determine whether cyclic meditation (like
117
+ TM) would increase the ability to pay attention to a given stimulus in addition
118
+ to the already described effect of reducing metabolic and respiratory rates
119
+ (Telles et al., 2000). The P300 component of the event-related brain potentials
120
+ (ERPs) is considered as a “cognitive” neuro-electric phenomenon because it
121
+ is generated in psychological tasks when subjects attend to and discriminate
122
+ stimuli that differ from one another on some dimension. Such discrimination
123
+ produces a relatively large, positive waveform with a modal latency of about 300
124
+ ms when elicited with auditory stimuli (Polish & Kok, 1995). The P300 event-
125
+ related brain potentials (ERP) reflect fundamental cognitive events requiring
126
+ attentional and immediate memory–processes (Polich, 1999).
127
+ Hence, in the present study the P300 was recorded before and after (i)
128
+ cyclic meditation and (ii) a comparable period of supine rest.
129
+ METHODS
130
+ Subjects
131
+ Forty-two male volunteers with ages ranging from 18 to 48 years (group mean
132
+ ± S.D., 27.1 ± 6.3 years) participated in the study. They were residing at a
133
+ yoga center. Male subjects alone were studied as auditory evoked responses
134
+ have been shown to vary with the phases of the menstrual cycle (Yadav et
135
+ al., 2002) and the P300 evoked by stimuli of the visual modality also varied
136
+ with sex (Polich & Conroy, 2003). All of them were in normal health based
137
+ on a routine clinical examination and none of the volunteers were taking any
138
+ medication. The subjects had experience of the practice of cyclic meditation
139
+ for more than 3 months (mean experience ± SD, 15.3 ± 13.3 months). The
140
+ aims and methods of the study were explained to them and all the subjects gave
141
+ their informed consent.
142
+ Design of the Study
143
+ Subjects were assessed in two separate sessions, namely, cyclic meditation
144
+ (CM) and supine rest (SR). For half the subjects the CM session took place
145
+ on the one day, with SR the next day. The remaining subjects had the order of
146
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
147
+ 1422
148
+ S.P
149
+ . SARANG AND S. TELLES
150
+ the sessions reversed. Subjects were alternately allocated to either schedule to
151
+ prevent the order of the sessions influencing the outcome. The subjects were
152
+ unaware about the hypothesis of the study. The assessments were done before
153
+ and after each session, which lasted for 22 min 30 s.
154
+ Recording Conditions
155
+ The peak latencies and peak amplitudes of P300 were recorded using Nicolet
156
+ Bravo System (USA). The P300 component was elicited with a simple
157
+ discrimination task known as the “oddball” paradigm because two stimuli
158
+ are presented in a random series so that one of them occurred infrequently
159
+ that is, the oddball (Polich, 1999). For assessments subjects were seated in a
160
+ sound attenuated and dimly lit cabin and were monitored on a closed circuit
161
+ television with instructions being given through an intercom, so that subjects
162
+ could remain undisturbed during a session.
163
+ Electrode Positions
164
+ Ag/AgCl disk electrodes were affixed with electrode gel (Ten 20 conductive
165
+ EEG paste, D.O. Weaver, USA) at the Fz, Cz, and Pz scalp sites, referred
166
+ to linked earlobes (A1–A2) with the ground electrode on the forehead (FPz);
167
+ according to the International 10–20 system (Jasper, 1958). The electro-ocular
168
+ activity (EOG) was recorded with a bipolar derivation from electrodes placed
169
+ 1 cm above and 1 cm below the outer canthus of the right eye. The electrode
170
+ impendence was kept below 5 k at all scalp sites.
171
+ Amplifier Settings
172
+ The electroencephalographic (EEG) activity was amplified with a sensitivity
173
+ of 100 µV. The low pass filter was kept at 0.01 Hz and the high pass filter was
174
+ kept at 30 Hz. The P300 ERPs were computer averaged in 300 trial sweeps, in
175
+ the 75–750 ms range. The pre-stimulus delay was kept at 75 ms and the level
176
+ of artifact rejection was set at 90%.
177
+ Stimulus Characteristics
178
+ Binaural tone stimuli of alternating polarity delivered at 0.9 ms with a frequency
179
+ of 1 KHz (50 cycles for the plateau, 10 cycles for the ramp) for the standard
180
+ stimuli and 2 KHz (10 cycles for the plateau, 20 cycles for the ramp) for the
181
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
182
+ P300 AND YOGA TECHNIQUES
183
+ 1423
184
+ target stimuli were used to trigger online averaging of the EEG. The percentage
185
+ of standard stimuli was set at 80 and for the target stimuli at 20. The stimulus
186
+ intensity was kept at 70 dB SPL.
187
+ Recording Procedure
188
+ Subjects were asked to avoid substances that influence cognitive performance
189
+ (e.g., coffee for the caffeine content) for the day preceding and the day of the
190
+ recording. Where this was unavoidable the session was taken on another day.
191
+ The P300 evoked potentials were recorded in the eyes-closed supine position.
192
+ The “standard” and “target” auditory stimuli were delivered through close-
193
+ fitting earphones (TDH-39, Amplivox, UK). Subjects were asked to distinguish
194
+ between the two tones by mentally counting the “target” stimuli. The P300
195
+ responses were recorded before and immediately after the intervention.
196
+ Interventions
197
+ Cyclic Meditation. Throughout the practice subjects kept their eyes closed,
198
+ and followed pre-recorded instructions. The instructions emphasized carrying
199
+ out the practice slowly, with awareness and relaxation. The practice began
200
+ by repeating a verse (40 s) from the yoga text, the Mandukya Upanisad
201
+ (Chinmayananda, 1984); followed by isometric contraction of the muscles
202
+ of the body ending with supine rest (1 min); slowly coming up from the left
203
+ side and standing at ease (called tadasana) and ‘balancing’ the weight on
204
+ both feet (called centering) (2 min); then the first actual posture, bending
205
+ to the right (ardhakaticakrasana, 1 min 20 s); a gap of 1 min 10 s in
206
+ tadasana with instructions about relaxation and awareness; bending to the
207
+ left (ardhakaticakrasana, 1 min 20 s); a gap as before (1 min 10 s); forward
208
+ bending (padahastasana, 1 min 20 s); another gap (1 min 10s); backward
209
+ bending (ardhacakrasana, 1 min 20 s); and slowly coming down in the supine
210
+ posture with instructions to relax different parts of the body in sequence (10
211
+ min). The postures were practiced slowly, with awareness of all the sensations
212
+ that are felt. The total duration of the practice was 22 min 30 s (Telles et al.,
213
+ 2000).
214
+ Supine rest. During the supine rest session, the subjects lay supine with
215
+ their legs apart and arms away from the sides of the body in corpse posture
216
+ (shavasana), with their eyes closed. This practice lasted 22 min 30 s, so that
217
+ the duration was the same as for CM.
218
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
219
+ 1424
220
+ S.P
221
+ . SARANG AND S. TELLES
222
+ Data Extraction
223
+ The peak amplitude and peak latency of the P300 was measured at the three
224
+ electrode sites; that is, Fz, Cz and Pz. The peak amplitude (in µV) was defined as
225
+ the voltage difference between a pre-stimulus baseline and the largest positive-
226
+ going peak of the ERP waveform within 250–500 ms latency (Polich, 1999).
227
+ The peak latency (ms) was defined as the time from stimulus onset to the point
228
+ of maximum positive amplitude within the latency window. The peak latency
229
+ and the peak amplitude were selected using the cursors.
230
+ Data Analysis
231
+ Statistical analysis was done using SPSS (Version 10.0). Data were analyzed
232
+ using the repeated measures analysis of variance (ANOVA). There were two
233
+ “Within subjects” factors, that is, Factor 1: Sessions, that is, CM and SR and
234
+ Factor 2: States, that is, Pre and Post. Paired t-test analyses were performed
235
+ to compare the data of the “post” periods with those of the respective “pre”
236
+ periods.
237
+ RESULTS
238
+ Repeated Measures Analysis of Variance
239
+ For the peak latency at Fz the repeated measures ANOVA showed a significant
240
+ difference between the two Sessions (F = 9.526, df = 1,41, p < .01,
241
+ Greenhouse-Geisser epsilon = 1.000), between the six States (F = 82.990,
242
+ df = 1,41, p < .001, Greenhouse-Geisser epsilon = 1.000), and the interaction
243
+ between Sessions and States (F = 20.532, df = 1,41, p < .001, Greenhouse-
244
+ Geisser epsilon = 1.000).
245
+ Also, for the peak amplitude at Fz there was a significant difference
246
+ between the six States (F = 9.723, df = 1,41, p < .001, Greenhouse-Geisser
247
+ epsilon = 1.000), and the interaction between Sessions and States (F = 4.944,
248
+ df = 1,41, p < .001, Greenhouse-Geisser epsilon = 1.000); however, there was
249
+ no significant difference between the two Sessions (F = 0.426, df = 1,41, p >
250
+ .05, Greenhouse-Geisser epsilon = 1.000).
251
+ For the peak latency at Cz the repeated measures ANOVA showed a
252
+ significant difference between the two Sessions (F = 22.167, df = 1,41, p
253
+ < .001, Greenhouse-Geisser epsilon = 1.000), between the six States (F =
254
+ 92.290, df = 1,41, p < .001, Greenhouse-Geisser epsilon = 1.000), and the
255
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
256
+ P300 AND YOGA TECHNIQUES
257
+ 1425
258
+ interaction between Sessions and States (F = 16.451, df = 1,41, p < .001,
259
+ Greenhouse-Geisser epsilon = 1.000).
260
+ Also, for the peak amplitude at Cz there was a significant difference
261
+ between the six States (F = 8.932, df = 1,41, p < .01, Greenhouse-Geisser
262
+ epsilon = 1.000), and the interaction between Sessions and States (F = 6.793,
263
+ df = 1,41, p < .01, Greenhouse-Geisser epsilon = 1.000) however, there was
264
+ no significant difference between the two Sessions (F = 1.178, df = 1,41, p >
265
+ .05, Greenhouse-Geisser epsilon = 1.000).
266
+ For the peak latency at Pz the repeated measures ANOVA showed a
267
+ significant difference between the two Sessions (F = 16.622, df = 1,41, p
268
+ < .001, Greenhouse-Geisser epsilon = 1.000), between the six States (F =
269
+ 130.831, df = 1,41, p < .001, Greenhouse-Geisser epsilon = 1.000), and the
270
+ interaction between Sessions and States (F = 18.163, df = 1,41, p < .001,
271
+ Greenhouse-Geisser epsilon = 1.000).
272
+ Also, the for peak amplitude at Pz there was a significant difference in
273
+ the interaction between Sessions and States (F = 4.577, df = 1,41, p <
274
+ .05, Greenhouse-Geisser epsilon = 1.000); however, there was no significant
275
+ difference between the two Sessions (F = 1.789, df = 1,41, p > .05,
276
+ Greenhouse-Geisser epsilon = 1.000) and between the six States (F = 3.310,
277
+ df = 1,41, p > .05, Greenhouse-Geisser epsilon = 1.000).
278
+ Paired t-test
279
+ There was a significant decrease in the P300 peak latencies at Fz, Cz, and Pz
280
+ sites after the practice of cyclic meditation compared to the “pre” state (p <
281
+ .001). There was a significant increase in the peak amplitude at Fz, Cz, and Pz
282
+ sites after the practice of cyclic meditation compared to the “pre” state (p <
283
+ .001).
284
+ There was a significant decrease in the P300 peak latencies at Fz, Cz, and
285
+ Pz sites after the practice of supine rest compared to the “pre” state (p < .001).
286
+ However, there was no significant change in the peak amplitude at Fz, Cz, and
287
+ Pz sites after the practice of supine rest compared to the “pre” state.
288
+ The peak latencies at Fz, Cz, and Pz sites before cyclic meditation and
289
+ before supine rest were not significantly different [p > .05, paired t-test (2)].
290
+ However, the peak latencies at Fz, Cz, and Pz sites after cyclic meditation and
291
+ after supine rest were significantly different [p < .001, paired t-test (2)].
292
+ The group mean ± S.D., of the peak latencies and the peak amplitudes at
293
+ Fz, Cz, and Pz sites are given in Table 1.
294
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
295
+ Table 1. Peak latency (ms) and peak amplitude (µV) of the P300 component in “pre” and “post” cyclic meditation and supine rest sessions.
296
+ Cyclic meditation (CM)
297
+ Supine rest (SR)
298
+ Electrode Site†
299
+ Variables
300
+ Pre
301
+ Post
302
+ Pre
303
+ Post
304
+ Fz
305
+ Latency (ms)
306
+ 363.92 ± 23.63
307
+ 328.07∗∗∗± 19.95
308
+ 359.85 ± 25.52
309
+ 347.28∗∗∗± 19.41
310
+ Amplitude (µV)
311
+ 5.92 ± 3.60
312
+ 7.96∗∗∗± 3.51
313
+ 7.06 ± 4.01
314
+ 7.36 ± 3.97
315
+ Cz
316
+ Latency (ms)
317
+ 362.92 ± 24.46
318
+ 326.21∗∗∗± 21.79
319
+ 364.64 ± 27.44
320
+ 346.85∗∗∗± 19.59
321
+ Amplitude (µV)
322
+ 7.24 ± 3.62
323
+ 9.14∗∗∗± 3.43
324
+ 8.65 ± 3.72
325
+ 8.64 ± 3.66
326
+ Pz
327
+ Latency (ms)
328
+ 368.42 ± 27.34
329
+ 328.28∗∗∗± 22.06
330
+ 369.57 ± 29.81
331
+ 352.54∗∗∗± 23.32
332
+ Amplitude (µV)
333
+ 8.71 ± 3.62
334
+ 9.88∗∗± 3.84
335
+ 9.79 ± 3.67
336
+ 9.90 ± 3.86
337
+ Values are group mean ± S.D. ∗∗∗p < .001, ∗∗p < .01, ∗p < .05. Paired t-test (2-tailed), “Post” compared with respective “Pre” values.
338
+ †Reference: linked earlobes.
339
+ 1426
340
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
341
+ P300 AND YOGA TECHNIQUES
342
+ 1427
343
+ DISCUSSION
344
+ The changes in the peak latency and peak amplitude of P300 auditory event-
345
+ related potentials were studied before and after the practice of cyclic meditation
346
+ compared to a comparable period of supine rest in 42 volunteers, from Fz, Cz
347
+ and Pz electrode sites referenced to linked earlobes.
348
+ Cyclic meditation consists of alternating cycles of practicing yoga postures
349
+ interspersed with periods of supine rest (Nagendra & Nagarathna, 1997). The
350
+ basis for this practice is an idea drawn from the ancient texts (Chinmayananda,
351
+ 1984). The underlying idea is that for most persons the mental state is routinely
352
+ somewhere between the extremes of being “inactive” or of being “agitated” and
353
+ hence to reach a balanced, relaxed state the most suitable technique would be
354
+ one that combines “awakening” and “calming” practices. In cyclic meditation,
355
+ the period of practicing yoga postures constitutes the “awakening” practices,
356
+ whereas periods of supine rest comprise the “calming practices.” An essential
357
+ part of the practice of cyclic meditation is being aware of sensations arising in
358
+ the body (Nagendra & Nagarathna, 1997).
359
+ In the present study, there was reduction in the peak latencies of P300 after
360
+ cyclic meditation at Fz, Cz and Pz compared to the “pre” values. A similar trend
361
+ of reduction in P300 peak latencies at Fz, Cz and Pz was also observed after
362
+ supine rest, compared to the respective “pre” values, although the magnitude
363
+ of change in each case was less after supine rest compared to after cyclic
364
+ meditation.
365
+ The P300 peak amplitudes after CM were higher at Fz, Cz and Pz sites
366
+ compared to the “pre” values. In contrast, no significant changes were observed
367
+ in the P300 peak amplitudes at Fz, Cz, and Pz after supine rest compared to the
368
+ respective “pre” state.
369
+ Previous studies have shown definite changes in the P300 evoked responses
370
+ following Transcendental meditation (TM). The effect of TM practice on
371
+ the P300 was studied using a passive auditory listening trial paradigm with
372
+ variable interstimulus intervals (1–4 s) between identical tone stimuli (Cranson
373
+ et al., 1990). The subjects were experienced TM meditators, novices, and
374
+ nonmeditator controls with mean ages of 41, 28 and 20 years, respectively. The
375
+ P300 latency was shorter for the two meditation groups, with the long-term
376
+ meditators showing the shortest P300 latency regardless of their age. In another
377
+ study an auditory oddball task was used with eyes-closed to assess experienced
378
+ TM meditators at pretest baseline, after 10 min of rest, or after 10 min of TM
379
+ practice with conditions counterbalanced across subjects (Travis & Miskov,
380
+ 1994). The P300 latency decreased at Pz after TM practice relative to no
381
+ change after the rest condition.
382
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
383
+ 1428
384
+ S.P
385
+ . SARANG AND S. TELLES
386
+ Sudarshan Kriya Yoga (SKY) is a meditation system that emphasizes
387
+ breathing techniques. This technique was used as an intervention for persons
388
+ with dysthymia compared with an unaffected control group. At three months,
389
+ the P300 amplitude increased to the levels of the control group in the patient
390
+ group (Naga Venkatesh Murthy et al., 1998).
391
+ The P300 amplitude is thought to indicate the amount of brain activity
392
+ related to incoming information processing and it is more sensitive to the
393
+ amount of attentive resources engaged during the task (Polich, 2004). The
394
+ P300 latency reflects the stimulus classification (cognitive) speed, is generally
395
+ unrelated to the overt response, and is independent of behavioral reaction
396
+ time. Because P300 latency is an index of stimulus processing rather than
397
+ response generation, it is used as a motor-free measure of cognitive function.
398
+ The P300 peak latency has been found to be negatively correlated with mental
399
+ function in normal subjects: shorter latencies are associated with superior
400
+ cognitive performance from neuropsychologic tests of attention and immediate
401
+ memory.
402
+ In the present study, both the peak amplitude and the peak latency of the
403
+ P300 potentials were changed following cyclic meditation. The reduction in
404
+ latency was also seen following supine rest, however the magnitude of change
405
+ was smaller than that after cyclic meditation. These results suggest increased
406
+ attentional resources, stimulus processing speed and efficiency after cyclic
407
+ meditation compared to an equal duration of supine rest.
408
+ Yoga practice has been understood to help in reducing anxiety based
409
+ on a reduction in levels of psychophysiological arousal (Telles & Srinivas,
410
+ 1998). In a previous study both cyclic meditation (CM) and supine rest (SR)
411
+ practiced for the same duration as in the present study, resulted in decreased
412
+ oxygen consumption, breath rate, and increased breath volume immediately
413
+ after the practice (Telles et al., 2000). These changes suggested that both
414
+ practices reduce physiological arousal. However, for all three variables the
415
+ magnitude of change was greater following CM compared with following SR.
416
+ This supported the idea that a combination of “stimulating” and “calming”
417
+ techniques practiced with a background of relaxation and awareness (during
418
+ CM) may reduce psychophysiological arousal more than SR. Hence, CM may
419
+ be supposed to be able to reduce anxiety more than SR, which may explain the
420
+ greater magnitude of change in the performance observed in the present study
421
+ following CM.
422
+ The neuroelectric events that underlie the P300 generation stem from
423
+ the interaction between the frontal lobe and hippocampal and temporoparietal
424
+ function (Halgren et al., 1998). The primary neural generators for the P300
425
+ Downloaded By: [Telles, shirley] At: 07:09 10 April 2008
426
+ P300 AND YOGA TECHNIQUES
427
+ 1429
428
+ components are in the anterior cingulate when new stimuli are processed into
429
+ working memory with subsequent activation of the hippocampal formation
430
+ when frontal lobe mechanisms communicate with the temporal or parietal lobe
431
+ connections (Polich, 1999).
432
+ In the present study the P300 peak amplitude increased at Fz, Cz and Pz
433
+ but the increase was maximum at Fz, which indicates greater involvement of
434
+ frontal areas, which are required for sustained attention. Various neuroimaging
435
+ studies on meditators have shown increased regional cerebral blood flow in the
436
+ frontal and prefrontal areas during meditation (Herzog et al., 1990). Hence, the
437
+ present findings may also support the idea of activation of frontal cortical areas
438
+ during meditation.
439
+ Insummary, thepresent studysupports theideathat meditation(inthis case,
440
+ “cyclic” meditation) enhances cognitive processes underlying the generation
441
+ of the P300, though further research is required to understand mechanisms
442
+ underlying the change.
443
+ REFERENCES
444
+ Bloomfield, H. H., Cain, M. P., Jaffe, D. T., & Kory, R. B. (1975). TM: Discovering
445
+ inner energy and overcoming stress. New York: Delacorte Press.
446
+ Brown, D. P. (1977). A model for the levels of concentrative meditation. The
447
+ International Journal of Clinical and Experimental Hypnosis, 25(4), 236–
448
+ 273.
449
+ Chinmayananda, S. (1984). Mandukya Upanishad. Bombay, India: Sachin Publishers.
450
+ Cranson, R., Goddard, P. H., & Orme-Johnson, D. (1990). P300 under conditions
451
+ of temporal uncertainty and filter attenuation: Reduced latency in long-term
452
+ practitioners of TM. Psychophysiology, 27, S23.
453
+ Halgren, E., Marinkovic, K., & Chauvel, P. (1998). Generators of the late cognitive
454
+ potentials in auditory and visual oddball tasks. Electroencephalography and
455
+ Clinical Neurophysiology, 106, 156–164.
456
+ Herzog, H., Lele, V. R., Kuwert, T., Langen, K. J., Kops, E. R., & Feinendegen, L. E.
457
+ (1990). Changed pattern of regional glucose metabolism during Yoga meditative
458
+ relaxation. Neuropsychobiology, 23, 182–187.
459
+ Jasper, H. H. (1958). The ten-twenty electrode system of the International federation.
460
+ Electroencephalography and Clinical Neurophysiology, 10, 371–375.
461
+ Naga Venkatesha Murthy, P. J., Janakiramaiah, N., Gangadhar, B. N., & Subbukrishna,
462
+ D. K. (1998). P300 amplitude and antidepressant response to Sudarshan Kriya
463
+ Yoga (SKY). Journal of Affective Disorders, 50, 45–48.
464
+ Nagendra, H. R., & Nagarathna, R. (1997). New perspectives in stress management.
465
+ Bangalore, India: Swami Vivekananda Yoga Publications.
466
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+ 1430
468
+ S.P
469
+ . SARANG AND S. TELLES
470
+ Peletier, K. R. (1972). Altered attention deployment in meditators. Berkeley, USA:
471
+ Psychology Clinic, University of California.
472
+ Polich, J. (1999). P300 in clinical applications. In E. Niedermeyer & F. Lopes da
473
+ Silva (Eds.), Electroencephalography: Basic principles, Clinical applications and
474
+ related fields. (pp. 1073–1091). Baltimore-Munich: Urban and Schwarzenberg.
475
+ Polich, J., & Conroy, M. (2003). P3a and P3b from visual stimuli: Gender Effects and
476
+ normative variability. In I. Reinvang, M. W. Greenlee, & M. Herrmann (Eds.),
477
+ The sognitive neuroscience of individual differences. (pp. 293–306). Delmenhorst,
478
+ Germany: Hanse Institute for Advanced Study.
479
+ Polich, J., & Kok, K. (1995). Cognitive and biological determinants of P300: An
480
+ integrative review. Biological Psychology, 41, 103–146.
481
+ Telles, S., & Srinivas, R. B. (1998). Autonomic and respiratory measures in children
482
+ with impaired vision following yoga and physical activity programs. International
483
+ Journal of Rehabilitation and Health, 4(2), 117–122.
484
+ Telles, S., Reddy, S. K., & Nagendra, H. R. (2000). Oxygen consumption and
485
+ respiration following two yoga relaxation techniques. Applied Psychophysiology
486
+ and Biofeedback, 25(4), 221–227.
487
+ Travis, F., & Miskov, S. (1994). P300 latency and amplitude during eyes-closed rest
488
+ and Transcendental Meditation practice. Psychophysiology, 31, S67.
489
+ Travis, F., Tecce, J., Arenander, A., & Wallace, R. K. (2002). Patterns of EEG
490
+ coherence, power, and contingent negative variation characterize the integration
491
+ of transcendental and waking states. Biological Psychology, 61(3), 293–319.
492
+ Wallace, R. K. (1970). The physiological effects of transcendental meditation. Science,
493
+ 167, 1751–1754.
494
+ Wallace, R. K., Benson, H., & Wilson, A. F. (1971). A wakeful hypometabolic
495
+ physiological state. American Journal of Physiology, 227, 795–799.
496
+ Walter, W. G., Cooper, R., Aldridge, V. J., Mccallum, W. C., & Winter, A. L. (1964).
497
+ Contingent negative variation: An electric sign of sensorimotor association and
498
+ expectancy in the human brain. Nature, 203, 380–384.
499
+ Woolfolk, R. L. (1975). Psychophysiological correlates of meditation. Archives of
500
+ General Psychology, 32, 1326–1333.
501
+ Yadav, A., Tandon, O. P., & Vaney, N. (2002). Auditory evoked responses during differ-
502
+ ent phases of menstrual cycle. Indian Journal of Physiology and Pharmacology,
503
+ 46(4), 449–456.
subfolder_0/Cerebrovascular Hemodynamics during the Practice of Bhramari Pranayama, Kapalbhati and Bahir-Kumbhaka An Exploratory Study.txt ADDED
@@ -0,0 +1,613 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Vol.:(0123456789)
2
+ 1 3
3
+ Applied Psychophysiology and Biofeedback
4
+ https://doi.org/10.1007/s10484-017-9387-8
5
+ Cerebrovascular Hemodynamics During the Practice of Bhramari
6
+ Pranayama, Kapalbhati and Bahir-Kumbhaka: An Exploratory Study
7
+ L. Nivethitha1 · A. Mooventhan1 · N. K. Manjunath1 · Lokesh Bathala2 · Vijay K. Sharma3
8
+
9
+ © Springer Science+Business Media, LLC, part of Springer Nature 2017
10
+ Abstract
11
+ Various pranayama techniques are known to produce different physiological effects. We evaluated the effect of three-different
12
+ pranayama techniques on cerebrovascular hemodynamics. Eighteen healthy volunteers with the mean ± standard deviation
13
+ age of 23.78 ± 2.96 years were performed three-different pranayama techniques: (1) Bhramari, (2) Kapalbhati and (3) Bahir-
14
+ Kumbhaka in three-different orders. Continuous transcranial Doppler (TCD) monitoring was performed before, during and
15
+ after the pranayama techniques. TCD parameters such as peak systolic velocity, end diastolic velocity (EDV), mean flow
16
+ velocity (MFV) and pulsatility index (PI) of right middle cerebral artery were recorded. Practice of Kapalbhati showed
17
+ significant reductions in EDV and MFV with significant increase in PI while, Bahir-Kumbhaka showed significant increase
18
+ in EDV and MFV with significant reduction in PI. However, no such significant changes were observed in Bhramari pranay-
19
+ ama. Various types of pranayama techniques produce different cerebrovascular hemodynamic changes in healthy volunteers.
20
+ Keywords  Brain blood flow · Breath control · Fast breathing · Pranayama · Slow breathing · Yoga
21
+ Background
22
+ Cerebral hemodynamic parameters change rapidly in
23
+ response to various physiological challenges. These
24
+ responses are responsible for cerebral auto-regulation i.e.
25
+ maintaining a constant cerebral blood flow (CBF) over a
26
+ wide range of blood pressure fluctuations. Blood flow in the
27
+ large intracranial arteries can be monitored using transcra-
28
+ nial Doppler ultrasound (TCD) (Yang et al. 2015). Thus,
29
+ TCD is aptly called as a stethoscope of the brain. It is the
30
+ only diagnostic tool that can provide relatively inexpensive,
31
+ non-invasive, real-time measurement of blood flow charac-
32
+ teristics and cerebrovascular hemodynamics (Bathala et al.
33
+ 2013). Since the middle cerebral artery (MCA) supplies the
34
+ largest area of the cerebral hemisphere, the flow velocity
35
+ is higher than any other intracranial arteries (Aaslid et al.
36
+ 1982).
37
+ Yoga is an ancient Indian science and the way of life,
38
+ which includes practice of specific posture (asana) and
39
+ regulated breathing (pranayama). Pranayama is an art of
40
+ prolongation and control of breath (Mooventhan and Khode
41
+ 2014). It consists of four important aspects: (1) Pooraka
42
+ (inhalation), (2) Rechaka (exhalation), (3) Antar-Kumbhaka
43
+ [internal breath retention (holding the breath after deep inha-
44
+ lation)], and (4) Bahir-Kumbhaka [external breath retention
45
+ (holding the breath after full exhalation)] (Saraswati 2008).
46
+ Different types of pranayamas were shown to produce dif-
47
+ ferent physiological responses. For example, practice of the
48
+ slow type of pranayama (3–6 breaths/min) (Madanmohan
49
+ et al. 2005) and Bhramari pranayama (Kuppusamy et al.
50
+ 2016) were reported to produce a reduction in heart rate
51
+ (HR), rate pressure product (RPP) [a product of HR and
52
+ systolic blood pressure (i.e. HR × SP/100), used to deter-
53
+ mine the myocardial workload] and double product (Do P)
54
+ [a product of HR and mean arterial pressure (MAP) (i.e.
55
+ HR × MAP/100) an index of cardiac oxygen consumption]
56
+ (Kuppusamy et al. 2016; Madanmohan et al. 2005), while a
57
+ fast type of pranayama (≥ 60 breaths/min) was reported to
58
+ increase it (Madanmohan et al. 2005).
59
+
60
+ * L. Nivethitha
61
+
62
63
+ 1
64
+ Division of Yoga and Life Sciences, Department of Research
65
+ and Development, S-VYASA University, Bengaluru,
66
+ Karnataka, India
67
+ 2
68
+ Department of Neurology, Aster CMI Hospital, Cauvery
69
+ Medical Centre, Bengaluru, Karnataka, India
70
+ 3
71
+ Division of Neurology, National University Hospital,
72
+ Singapore, Singapore
73
+
74
+ Applied Psychophysiology and Biofeedback
75
+ 1 3
76
+ Many studies have reported the effect of various pra-
77
+ nayama practices on cardiovascular functions (Madanmo-
78
+ han et al. 2005; Sharma et al. 2013), pulmonary functions
79
+ (Dinesh et al. 2015), autonomic functions including HR
80
+ variability (Raghuraj et al. 1998; Raghuraj and Telles 2008),
81
+ cognitive functions (Sharma et al. 2014), fine motor skills
82
+ (finger dexterity) (Telles et al. 2012), handgrip strength,
83
+ endurance (Thangavel et al. 2014), visual discrimination
84
+ (Telles et al. 2012), reaction time (Madanmohan et al. 2005)
85
+ and perceived stress (Sharma et al. 2013). Though a study
86
+ reported the effect of Bhastrika pranayama [bellows breath-
87
+ ing (forceful inhalation followed by forceful exhalation)] and
88
+ Antar-Kumbhaka (Nivethitha et al. 2017) on cerebrovascular
89
+ hemodynamics, there is no known study reporting the effect
90
+ of various other commonly practicing pranayama techniques
91
+ including Bhramari pranayama [humming bee breath (a
92
+ slow and vibrating type of pranayama)], Kapalbhati [frontal
93
+ brain cleansing breath (a fast type of yoga breathing tech-
94
+ nique)] and Bahir-Kumbhaka (no breathing after exhalation)
95
+ on cerebrovascular hemodynamics. Hence, the present study
96
+ was conducted to evaluate the effect of Bhramari pranayama,
97
+ Kapalbhati, and Bahir-Kumbhaka on cerebrovascular hemo-
98
+ dynamics in healthy volunteers.
99
+ Materials and Methods
100
+ Participants
101
+ Eighteen healthy volunteers were recruited from a residen-
102
+ tial yoga university in South India, based on the following
103
+ inclusion and exclusion criteria. Inclusion criteria Healthy
104
+ male and female volunteers with the age of 18-years and
105
+ above, willing to participate in the study and who have had
106
+ experience in practicing yoga including pranayama for mini-
107
+ mum of 1 year. Exclusion criteria Participants with a history
108
+ of any systemic and mental illness, regular medication for
109
+ any diseases, chronic substance abuse, and the participant
110
+ who is unable to perform pranayama. The study protocol was
111
+ approved by the institutional ethics committee, S-VYASA
112
+ University, Bengaluru, India. A signed written informed
113
+ consent was obtained from each participant.
114
+ Study Design
115
+ A single group repeated measures design was used in this
116
+ study. Each participant was advised to perform three dif-
117
+ ferent pranayama techniques: (1) Bhramari pranayama,
118
+ (2) Kapalbhati, and (3) Bahir-Kumbhaka in three dif-
119
+ ferent orders. The order was randomly selected using
120
+ lottery method as follows: 18 papers [6 containing the
121
+ word ‘Bhramari’ (i.e. 1st order), 6 containing the word
122
+ ‘Kapalbhati’ (i.e. 2nd order); and 6 containing the word
123
+ ‘Bahir-Kumbhaka’ (i.e. 3rd order)] were put in an envelope
124
+ and each participant was asked to draw a paper from the
125
+ envelope. The paper each participant drew out determined
126
+ the order in which the respective pranayama tasks were done
127
+ (Mooventhan and Khode 2014). In the first order (n = 6),
128
+ participants performed normal breathing followed by Bhra-
129
+ mari, Kapalbhati and Bahir-Kumbhaka; in second the order
130
+ (n = 6), participants performed normal breathing followed
131
+ by Kapalbhati, Bahir-Kumbhaka and Bhramari; and in the
132
+ third order (n = 6), participants performed normal breathing
133
+ followed by Bahir-Kumbhaka, Bhramari and Kapalbhati.
134
+ Assessments were taken before (normal breath), during and
135
+ after each pranayama technique.
136
+ Assessment
137
+ Cerebrovascular Hemodynamic Changes
138
+ Cerebrovascular hemodynamic changes of the right MCA
139
+ were assessed with TCD (Multi Dop X, DWL, Germany).
140
+ A 2-MHz TCD ultrasound transducer probe (DWL Systems)
141
+ was placed in the right temporal area just above the zygo-
142
+ matic arch and in front of the tragus of the ear with the use
143
+ of a head frame (a supporting material that was placed in
144
+ the head to hold and fix the TCD transducer probe firmly in
145
+ a desired place where we get the maximum ultrasound sig-
146
+ nals). The transducer was adjusted manually to get red color
147
+ signal between 40 and 65-mm (indicator of maximum ultra-
148
+ sound signal reflected from the ipsilateral MCA) in order to
149
+ obtain the flow dynamics of the right MCA. Assessments
150
+ such as peak systolic velocity (PSV) (the first peak on a TCD
151
+ waveform from each cardiac cycle that indicates CBF veloc-
152
+ ity at systolic phase) in cm/s, end diastolic velocity (EDV)
153
+ (the second peak on a TCD waveform from each cardiac
154
+ cycle that indicates CBF velocity at diastolic phase) in cm/s,
155
+ mean flow velocities (MFV) (EDV plus one-third of the dif-
156
+ ference between PSV and EDV) in cm/s and pulsatility index
157
+ (PI) (an indicator of flow resistance) (Bathala et al. 2013)
158
+ were taken just before (baseline), during and immediately
159
+ after (post) each pranayama. Baseline assessment was taken
160
+ at 0 s i.e. just before starting of each pranayama. During
161
+ assessment was taken at 1st, 2nd, 3rd, 4th and 5th min of
162
+ Bhramari pranayama; 15, 30, 45, and 60 s of Kapalbhati
163
+ and normal breathing (as a control); and 10, 20 and 30 s of
164
+ Bahir-Kumbhaka. Post assessment was taken at 15, 30, 45,
165
+ and 60 s immediately after the practice of each pranayama
166
+ technique.
167
+ Intervention
168
+ Each participant was advised to perform three differ-
169
+ ent pranayama techniques: (1) Bhramari pranayama, (2)
170
+ Kapalbhati, and (3) Bahir-Kumbhaka for the duration of
171
+ Applied Psychophysiology and Biofeedback
172
+ 1 3
173
+ 5 min, 1 min and 30 s respectively in any one of the three
174
+ different orders as mentioned in the study design. Since
175
+ the nature of each type of pranayama technique is different
176
+ from one another, the time taken to complete one round of a
177
+ particular type of pranayama is also different from another
178
+ type. Thus, the duration of each pranayama technique was
179
+ kept differently based on its nature and participants’ ability
180
+ to complete one round of each pranayama comfortably. A
181
+ rest period of 5 min was given between each intervention to
182
+ allow the cerebral hemodynamic patterns to settle at their
183
+ baseline values (Müller et al. 1995; Nivethitha et al. 2017).
184
+ Bhramari (Humming Bee Breath)
185
+ Participants were asked to perform inhalation through both
186
+ nostrils and while exhaling (through both nostrils) produces
187
+ the sound of a humming bee (with closed mouth) (Mooven-
188
+ than and Khode 2014) for the duration of 5 min.
189
+ Kapalbhati (Frontal Brain Cleansing Breath)
190
+ Participants were asked to perform forceful exhalation fol-
191
+ lowed by passive inhalation through both nostrils (Saraswati
192
+ 2008) for the duration of 1 min.
193
+ Bahir‑Kumbhaka (External Breath Retention)
194
+ Participants were asked to exhale completely through both
195
+ nostrils followed by hold/retain the breath (Saraswati 2008)
196
+ for the duration of 30 s (excluding exhalation).
197
+ Normal Breathing
198
+ Participants were asked to perform normal breathing before
199
+ all the pranayama techniques and immediately after each
200
+ pranayama technique.
201
+ Data Analysis
202
+ Statistical analysis was performed using a repeated measures
203
+ of analysis of variance with post-hoc analysis and Bonfer-
204
+ roni adjustment using the Statistical Package for the Social
205
+ Sciences (SPSS) for Windows, Version 16.0. Chicago, SPSS
206
+ Inc.
207
+ Results
208
+ A total of 18 healthy volunteers were recruited in the study.
209
+ Demographic details of all the study participants have been
210
+ given in Table 1. All study participants’ demonstrated stable
211
+ cerebrovascular hemodynamic parameters and no significant
212
+ changes were observed in PSV, EDV, MFV and PI during
213
+ their normal breathing (Table 2) and Bhramari pranayama
214
+ (Table 3) tasks.
215
+ During the practice of Kapalbhati, there was a significant
216
+ reduction in EDV and MFV with significant increase in PI
217
+ from 15 to 60 s (Table 1) and those values were reverted
218
+ back to normal within 30 s (EDV and PI) and 45 s (MFV)
219
+ after cessation of the practice (Table 4).
220
+ During the practice of Bahir-Kumbhaka, there was a sig-
221
+ nificant increase in EDV and MFV with significant reduction
222
+ in PI at 30 s and those values were reverted back to normal
223
+ within 15 s after cessation of the practice (Table 5).
224
+ Discussion
225
+ CBF is regulated by the autonomic nervous system (ANS) by
226
+ altering the tone of arteriolar sphincters. Some of the impor-
227
+ tant determinants of CBF include partial pressure of arterial
228
+ ­
229
+ CO2 ­
230
+ (PaCO2), mean arterial pressure (MAP), and cerebral
231
+ metabolism. ­
232
+ PaCO2 is the strongest regulator of arteriolar
233
+ Table 1   Demographic variables of the study subjects (n = 18)
234
+ Variables
235
+ Study group (n = 18)
236
+ Age (years)
237
+ 23.78 ± 2.96
238
+ Gender
239
+ Males (n = 17) and
240
+ female (n = 1)
241
+ Height (m)
242
+ 1.71 ± 0.08
243
+ Weight (kg)
244
+ 60.28 ± 8.82
245
+ Body mass index (kg/m2)
246
+ 20.65 ± 2.10
247
+ Table 2   Cerebrovascular
248
+ hemodynamics during normal
249
+ breathing (n = 18) (RMANOVA
250
+ with post-hoc analysis and
251
+ Bonferroni adjustment)
252
+ All values are in mean ± Standard deviation
253
+ RMANOVA repeated measures of analysis of variance, PSV peak systolic velocity, EDV end diastolic veloc-
254
+ ity, MFV mean flow velocity, PI pulsatility index
255
+ Parameter
256
+ Baseline
257
+ 15 s
258
+ 30 s
259
+ 45 s
260
+ 60 s
261
+ PSV (cm/s)
262
+ 58.56 ± 18.64
263
+ 59.06 ± 18.99
264
+ 59.67 ± 18.31
265
+ 58.11 ± 17.65
266
+ 59.28 ± 18.15
267
+ EDV (cm/s)
268
+ 22.94 ± 8.95
269
+ 21.56 ± 5.16
270
+ 22.33 ± 7.53
271
+ 22.28 ± 7.92
272
+ 21.78 ± 6.25
273
+ MFV (cm/s)
274
+ 34.94 ± 12.24
275
+ 34.22 ± 11.02
276
+ 34.72 ± 10.90
277
+ 34.39 ± 10.37
278
+ 34.78 ± 9.92
279
+ PI
280
+ 1.04 ± 0.22
281
+ 1.08 ± 0.19
282
+ 1.08 ± 0.20
283
+ 1.05 ± 0.23
284
+ 1.07 ± 0.21
285
+
286
+ Applied Psychophysiology and Biofeedback
287
+ 1 3
288
+ tone and an increase of 1 mm of Mercury (Hg) increases
289
+ CBF by 3–6% while a 1 mmHg reduction decreases CBF by
290
+ 1–3% (Willie et al. 2014).
291
+ In this study, no significant changes in the cerebral hemo-
292
+ dynamic parameters were observed during normal breath-
293
+ ing and even during Bhramari pranayama. This effect is
294
+ probably related to the maintenance of ­
295
+ PaCO2 and the bal-
296
+ anced state of autonomic nervous system within a very nar-
297
+ row and stable range (Battisti-Charbonney et al. 2011). In
298
+ contrast, practice of both Kapalbhati and Bahir-Kumbhaka
299
+ showed significant changes in cerebrovascular hemodynamic
300
+ parameters such as EDV, MFV and PI but no such significant
301
+ change was observed in PSV.
302
+ Interestingly, though both Kapalbhati and Bahir-Kumb-
303
+ haka produced significant changes in cerebral hemodynam-
304
+ ics, the direction of the changes was opposite to one another
305
+ (i.e. Kapalbhati produced a significant reduction in EDV and
306
+ MFV with a significant increase in PI, while Bahir-Kumb-
307
+ haka produced a significant increase in EDV and MFV with
308
+ a significant reduction in PI).
309
+ In previous studies, practice of Kapalbhati was shown
310
+ to modify the autonomic status either by increasing sym-
311
+ pathetic activity (Raghuraj et al. 1998) or by reducing par-
312
+ asympathetic modulation (Telles et al. 2011). Kapalbhati is
313
+ also known as high frequency yoga breathing (> 60 breath/
314
+ min) which might lead to the development of hypocapnia
315
+ i.e. reduced level of the ­
316
+ PaCO2 due to increased rate of the
317
+ respiration with forceful exhalation. Hence, the reduction
318
+ in EDV and MFV associated with the increase in PI during
319
+ Kapalbhati is probably mediated via an increased sympa-
320
+ thetic activity (Raghuraj et al. 1998) while reducing the
321
+ parasympathetic modulation (Telles et al. 2011). The cer-
322
+ ebral hemodynamic parameters gradually returned to their
323
+ baseline values within 45 s of cessation of Kapalbhati,
324
+ most probably related to the normalization of ANS and/
325
+ or ­
326
+ PaCO2 during the normal breathing after the practice
327
+ (Nivethitha et al. 2017).
328
+ Breath retention/holding increases the ­
329
+ PaCO2 and
330
+ reduces the partial pressure of oxygen (Parkes 2006).
331
+ These changes resulted in an increased CBF (Willie et al.
332
+ 2014). Hence, we believed in that the practice of Bahir-
333
+ Kumbhaka (breath holding after exhalation) also produces
334
+ the same phenomenon and increases CBF with a reduced
335
+ cerebrovascular resistance.
336
+ Some other limitations of the study need to be acknowl-
337
+ edged. We did not monitor the partial pressures of oxy-
338
+ gen and ­
339
+ CO2 and autonomic variables specifically blood
340
+ pressure and HR variability during the practice of various
341
+ types of pranayama techniques to delineate the underly-
342
+ ing physiological mechanisms for the observed changes
343
+ in cerebrovascular hemodynamic parameters; study might
344
+ appear to have a small number of participants. Hence,
345
+ Table 3   Cerebrovascular hemodynamics during Bhramari pranayama (n = 18) (RMANOVA with post-hoc analysis and Bonferroni adjustment)
346
+ All values are in mean ± standard deviation
347
+ RMANOVA repeated measures of analysis of variance, PSV peak systolic velocity, EDV end diastolic velocity, MFV mean flow velocity, PI pulsatility index
348
+ Parameter
349
+ Baseline
350
+ During Bhramari
351
+ Post-test assessments
352
+ 1 min
353
+ 2 min
354
+ 3 min
355
+ 4 min
356
+ 5 min
357
+ 15 s
358
+ 30 s
359
+ 45 s
360
+ 60 s
361
+ PSV (cm/s)
362
+ 55.89 ± 19.98
363
+ 53.89 ± 19.39
364
+ 52.28 ± 16.24
365
+ 51.72 ± 17.87
366
+ 51.72 ± 19.03
367
+ 52.50 ± 18.63
368
+ 52.61 ± 18.72
369
+ 53.06 ± 19.68
370
+ 56.00 ± 22.38
371
+ 57.44 ± 21.70
372
+ EDV(cm/s)
373
+ 20.61 ± 6.90
374
+ 19.28 ± 6.28
375
+ 20.67 ± 6.24
376
+ 19.94 ± 5.74
377
+ 20.56 ± 7.01
378
+ 21.33 ± 7.19
379
+ 19.06 ± 8.86
380
+ 20.39 ± 8.45
381
+ 21.00 ± 10.44
382
+ 22.61 ± 8.52
383
+ MFV(cm/s)
384
+ 33.83 ± 10.59
385
+ 30.61 ± 10.29
386
+ 31.94 ± 9.36
387
+ 30.28 ± 9.46
388
+ 30.39 ± 11.25
389
+ 32.89 ± 10.06
390
+ 31.06 ± 11.50
391
+ 31.67 ± 10.86
392
+ 34.22 ± 14.36
393
+ 35.78 ± 14.12
394
+ PI
395
+ 1.03 ± 0.28
396
+ 1.11 ± 0.26
397
+ 1.00 ± 0.27
398
+ 1.03 ± 0.24
399
+ 1.02 ± 0.26
400
+ 0.93 ± 0.19
401
+ 1.10 ± 0.22
402
+ 1.02 ± 0.20
403
+ 0.97 ± 0.30
404
+ 0.98 ± 0.16
405
+ Applied Psychophysiology and Biofeedback
406
+ 1 3
407
+ further study is required with the large sample size and
408
+ more objective measurements for the better understanding.
409
+ Conclusion
410
+ Our study shows that the practice of Kapalbhati and Bahir-
411
+ Kumbhaka produced different cerebrovascular hemody-
412
+ namic changes which are almost opposite to each other
413
+ while Bhramari pranayama produces no effect.
414
+ Compliance with Ethical Standards 
415
+ Conflict of interest  All authors declare that they have no conflict of
416
+ interest.
417
+ Ethical Approval  Study protocol was approved by the institutional eth-
418
+ ics committee, S-VYASA University, Bengaluru, India.
419
+ Informed Consent  A written informed consent was obtained from each
420
+ participant.
421
+ References
422
+ Aaslid, R., Markwalder, T. M., & Nornes, H. (1982). Noninvasive tran-
423
+ scranial doppler ultrasound recording of flow velocity in basal
424
+ cerebral arteries. Journal of Neurosurgery, 57(6), 769–774.
425
+ Bathala, L., Mehndiratta, M. M., & Sharma, V. K. (2013). Tran-
426
+ scranial doppler: Technique and common findings (Part 1).
427
+ Annals of Indian Academy of Neurology, 16(2), 174. https://doi.
428
+ org/10.4103/0972-2327.112460.
429
+ Battisti-Charbonney, A., Fisher, J., & Duffin, J. (2011). The cerebro-
430
+ vascular response to carbon dioxide in humans. The Journal
431
+ of Physiology, 589(12), 3039–3048. https://doi.org/10.1113/
432
+ jphysiol.2011.206052.
433
+ Dinesh, T., Gaur, G., Sharma, V., Madanmohan, T., & Bhavanani, A.
434
+ (2015). Comparative effect of 12 weeks of slow and fast pranay-
435
+ ama training on pulmonary function in young, healthy volunteers:
436
+ A randomized controlled trial. International Journal of Yoga,
437
+ 8(1), 22–26. https://doi.org/10.4103/0973-6131.146051.
438
+ Kuppusamy, M., Kamaldeen, D., Pitani, R., & Amaldas, J. (2016).
439
+ Immediate effects of bhramari pranayama on resting cardiovas-
440
+ cular parameters in healthy adolescents. Journal of Clinical and
441
+ Diagnostic Research, 10, CC17–C9. https://doi.org/10.7860/
442
+ JCDR/2016/19202.7894.
443
+ Madanmohan, T., Udupa, K., Bhavanani, A. B., Vijayalakshmi, P.,
444
+ & Surendiran, A. (2005). Effect of slow and fast pranayams on
445
+ reaction time and cardiorespiratory variables. Indian Journal of
446
+ Physiology and Pharmacology, 49, 313–318.
447
+ Mooventhan, A., & Khode, V. (2014). Effect of Bhramari pranayama
448
+ and OM chanting on pulmonary function in healthy individuals:
449
+ A prospective randomized control trial. International Journal of
450
+ Yoga, 7(2), 104. https://doi.org/10.4103/0973-6131.133875.
451
+ Table 4   Cerebrovascular hemodynamics during Kapalbhati (n = 18) [RMANOVA with post-hoc analysis and Bonferroni adjustment]
452
+ All values are in mean ± standard deviation
453
+ RMANOVA repeated measures of analysis of variance, PSV peak systolic velocity, EDV end diastolic velocity, MFV mean flow velocity, PI pul-
454
+ satility index
455
+ *p value < 0.05
456
+ Parameter
457
+ Baseline
458
+ During Kapalbhati
459
+ Post-test assessments
460
+ 15 s
461
+ 30 s
462
+ 45 s
463
+ 60 s
464
+ 15 s
465
+ 30 s
466
+ 45 s
467
+ 60 s
468
+ PSV (cm/s)
469
+ 58.56 ± 19.18
470
+ 54.28 ± 15.60
471
+ 57.11 ± 18.13
472
+ 54.72 ± 17.88
473
+ 54.33 ± 17.62
474
+ 53.89 ± 18.33
475
+ 53.72 ± 19.08
476
+ 54.89 ± 21.28
477
+ 55.67 ± 20.42
478
+ EDV (cm/s)
479
+ 22.56 ± 8.00
480
+ 8.72 ± 9.30*
481
+ 6.39 ± 8.10*
482
+ 6.61 ± 8.47*
483
+ 9.78 ± 7.48*
484
+ 14.00 ± 9.73*
485
+ 18.11 ± 10.06
486
+ 18.28 ± 9.81
487
+ 20.22 ± 9.47
488
+ MFV (cm/s)
489
+ 36.89 ± 11.67
490
+ 26.72 ± 8.58*
491
+ 24.78 ± 8.22*
492
+ 24.33 ± 8.29*
493
+ 24.39 ± 8.60*
494
+ 27.56 ± 9.92*
495
+ 30.83 ± 12.01*
496
+ 33.06 ± 15.28
497
+ 34.17 ± 12.89
498
+ PI
499
+ 0.97 ± 0.20
500
+ 1.82 ± 0.64*
501
+ 2.19 ± 0.74*
502
+ 2.14 ± 0.81*
503
+ 1.98 ± 0.81*
504
+ 1.55 ± 0.61*
505
+ 1.28 ± 0.61
506
+ 1.27 ± 0.74
507
+ 1.07 ± 0.37
508
+ Table 5   Cerebrovascular hemodynamics during Bahir-Kumbhaka (n = 18) (RMANOVA with post-hoc analysis and Bonferroni adjustment)
509
+ All values are in mean ± standard deviation
510
+ RMANOVA repeated measures of analysis of variance, PSV peak systolic velocity, EDV end diastolic velocity, MFV mean flow velocity, PI pul-
511
+ satility index
512
+ *p value < 0.05
513
+ Parameter
514
+ Baseline
515
+ During Bahir-Kumbhaka
516
+ Post-test assessments
517
+ 10 s
518
+ 20 s
519
+ 30 s
520
+ 15 s
521
+ 30 s
522
+ 45 s
523
+ 60 s
524
+ PSV (cm/s)
525
+ 55.83 ± 19.81
526
+ 55.33 ± 17.35
527
+ 59.61 ± 19.74
528
+ 63.50 ± 20.95
529
+ 58.33 ± 19.98
530
+ 54.50 ± 20.39
531
+ 56.28 ± 20.34
532
+ 55.67 ± 19.42
533
+ EDV (cm/s)
534
+ 20.50 ± 7.82
535
+ 20.33 ± 5.96
536
+ 25.22 ± 9.43
537
+ 31.44 ± 13.34* 19.78 ± 5.73
538
+ 19.78 ± 5.85
539
+ 20.28 ± 9.40
540
+ 20.33 ± 9.20
541
+ MFV (cm/s)
542
+ 33.56 ± 12.08
543
+ 32.44 ± 9.15
544
+ 37.89 ± 13.83
545
+ 44.78 ± 17.61* 33.17 ± 10.13
546
+ 32.06 ± 10.04
547
+ 32.89 ± 12.87
548
+ 33.56 ± 12.01
549
+ PI
550
+ 1.06 ± 0.22
551
+ 1.07 ± 0.25
552
+ 0.93 ± 0.20
553
+ 0.74 ± 0.14*
554
+ 1.16 ± 0.28
555
+ 1.05 ± 0.19
556
+ 1.12 ± 0.24
557
+ 1.12 ± 0.25
558
+
559
+ Applied Psychophysiology and Biofeedback
560
+ 1 3
561
+ Müller, M., Voges, M., Piepgras, U., & Schimrigk, K. (1995). Assess-
562
+ ment of cerebral vasomotor reactivity by transcranial doppler
563
+ ultrasound and breath-holding. Stroke, 26(1), 96–100.
564
+ Nivethitha, L., Mooventhan, A., Manjunath, N. K., Bathala, L., &
565
+ Sharma, V. K. (2017). Cerebrovascular hemodynamics during
566
+ pranayama techniques. Journal of Neurosciences in Rural Prac-
567
+ tice, 8(1), 60. https://doi.org/10.4103/0976-3147.193532.
568
+ Parkes, M. J. (2006). Breath-holding and its breakpoint. Experimental
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+ Physiology, 91(1), 1–15.
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+ Raghuraj, P., Ramakrishnan, A. G., Nagendra, H. R., & Telles, S.
571
+ (1998). Effect of two selected yogic breathing techniques on heart
572
+ rate variability. Indian Journal of Physiology and Pharmacology,
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+ 42, 467–472.
574
+ Raghuraj, P., & Telles, S. (2008). Immediate effect of specific nostril
575
+ manipulating yoga breathing practices on autonomic and respira-
576
+ tory variables. Applied Psychophysiology and Biofeedback, 33(2),
577
+ 65–75. https://doi.org/10.1007/s10484-008-9055-0.
578
+ Saraswati, S. (2008). Asana pranayama mudra bandha (4th revised
579
+ ed.). Munger: Yoga Publications Trust.
580
+ Sharma, V. K., Rajajeyakumar, M., Velkumary, S., Subramanian,
581
+ S. K., Bhavanani, A. B., Madanmohan, S. A., & Thangavel,
582
+ D. (2014). Effect of fast and slow pranayama practice on cog-
583
+ nitive functions in healthy volunteers. Journal of Clinical and
584
+ Diagnostic Research, 8(1), 10–13. https://doi.org/10.7860/
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+ JCDR/2014/7256.3668.
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+ Sharma, V. K., Trakroo, M., Subramaniam, V., Rajajeyakumar, M.,
587
+ Bhavanani, A. B., & Sahai, A. (2013). Effect of fast and slow
588
+ pranayama on perceived stress and cardiovascular parameters in
589
+ young health-care students. International Journal of Yoga, 6(2),
590
+ 104–110. https://doi.org/10.4103/0973-6131.113400.
591
+ Telles, S., Singh, N., & Balkrishna, A. (2011). Heart rate variabil-
592
+ ity changes during high frequency yoga breathing and breath
593
+ awareness. BioPsychoSocial Medicine, 5(1), 4. https://doi.
594
+ org/10.1186/1751-0759-5-4.
595
+ Telles, S., Singh, N., & Balkrishna, A. (2012). Finger dexter-
596
+ ity and visual discrimination following two yoga breathing
597
+ practices. International Journal of Yoga, 5(1), 37. https://doi.
598
+ org/10.4103/0973-6131.91710.
599
+ Thangavel, D., Gaur, G. S., Sharma, V. K., Bhavanani, A. B., Rajajeya-
600
+ kumar, M., & Syam, S. A. (2014). Effect of slow and fast pra-
601
+ nayama training on handgrip strength and endurance in healthy
602
+ volunteers. Journal of Clinical and Diagnostic Research, 8(5),
603
+ BC01–BC03. https://doi.org/10.7860/JCDR/2014/7452.4390.
604
+ Willie, C. K., Tzeng, Y. C., Fisher, J. A., & Ainslie, P. N. (2014).
605
+ Integrative regulation of human brain blood flow. The Jour-
606
+ nal of Physiology, 592(5), 841–859. https://doi.org/10.1113/
607
+ jphysiol.2013.268953.
608
+ Yang, R., Brugniaux, J., Dhaliwal, H., Beaudin, A. E., Eliasziw, M.,
609
+ Poulin, M. J., & Dunn, J. F. (2015). Studying cerebral hemody-
610
+ namics and metabolism using simultaneous near-infrared spec-
611
+ troscopy and transcranial doppler ultrasound: A hyperventilation
612
+ and caffeine study. Physiological Reports, 3(4), e12378. https://
613
+ doi.org/10.14814/phy2.12378.
subfolder_0/Comparative impact of yoga and ayurveda practice in insomnia A randomized controlled trial.txt ADDED
@@ -0,0 +1,1731 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ © 2023 Journal of Education and Health Promotion | Published by Wolters Kluwer - Medknow
2
+ 1
3
+ Comparative impact of yoga and
4
+ ayurveda practice in insomnia:
5
+ A randomized controlled trial
6
+ Kanika Verma, Deepeshwar Singh, Alok Srivastava1
7
+ Abstract:
8
+ BACKGROUND: Insomnia is connected with a lifted hazard for neurocognitive dysfunction and
9
+ psychiatric disarranges. Clinical observations of psychosomatic patients indicate that their distorted
10
+ somatopsychic functioning necessitates their practice of yoga‑like therapy. Sleep and its modifications
11
+ and management have also been explained well in ayurveda. This study aimed to compare the
12
+ effectiveness of Yoga and Nasya Karma on the sleep quality, stress, cognitive function, and quality
13
+ of life of people suffering from acute insomnia.
14
+ MATERIAL AND METHODS: It was an open‑label, randomized controlled trial. A  total of
15
+ 120 participants were randomly (computer‑generated randomization) equally allocated to three groups,
16
+ yoga group (G‑1), ayurveda group (G‑2), and control group (G‑3). All the groups were assessed
17
+ on the first day before the start of the yoga regime and the 48th day. Participants in the study were
18
+ included in the age group of 18 to 45 years, fulfilling DSM‑V criteria for insomnia, physically fit for
19
+ the yoga module, and Nasya procedure. Outcomes were measured by the Pittsburgh Sleep Quality
20
+ Index (PSQI) questionnaire, Perceived Stress Scale (PSS), cognitive failure questionnaire, and
21
+ WHO Quality of Life Scale‑Brief (WHOQOL‑Brief). Proportions and frequencies were described
22
+ for categorical variables and compared using the Chi‑square test. ANOVA (one‑way) and post hoc
23
+ analysis, Bonferroni test, were performed for multiple comparisons in groups at a significance level
24
+ of P < 0.05 using SPSS (23 version).
25
+ RESULTS: A total of 112 participants were analyzed as per protocol analysis. All groups have
26
+ observed significant mean differences for stress (<0.05) and sleep quality (<0.05). All five aspects
27
+ of quality of life – general health (<0.05), physical health (<0.01), psychological health (<0.05), social
28
+ health (<0.05), and environmental health (<0.05) – had a significant mean difference in all three
29
+ groups. All three aspects of cognitive failure, forgetfulness (<0.05), distractibility (<0.05), and false
30
+ triggers (<0.01) had a significant mean difference in scores for all three groups.
31
+ CONCLUSION: Yoga practice was effective, followed by ayurveda and the control group in reducing
32
+ stress and improving sleep, cognitive function, and quality of life.
33
+ Keywords:
34
+ Ayurveda, cognitive, insomnia, Nasya Karma, quality of life, sleep, stress, yoga
35
+ Introduction
36
+ I
37
+ nsomnia can be described as dissatisfaction
38
+ with rest quality, difficulty falling asleep,
39
+ frequent night arousals, and arousing prior
40
+ to the morning or the desired time.[1,2] Most
41
+ reports recommend predominance rates of
42
+ insomnia disorder at 5% to 15%.[3‑5] Insomnia
43
+ could be an ongoing issue in 31% to 75%
44
+ of patients, with more than two‑thirds
45
+ reporting side effects for at least 1 year.[1,5]
46
+ It is additionally associated with daytime
47
+ fatigue, languor, impedance in cognitive
48
+ execution, and mood changes. Insomnia
49
+ differs from sleep deprivation as it is
50
+ challenging to rest despite having adequate
51
+ opportunities.[1] Given the expanded work
52
+ weight and social challenges in an advanced
53
+ Address for
54
+ correspondence:
55
+ Kanika Verma,
56
+ Department of Yoga
57
+ and Life Sciences,
58
+ Swami Vivekananda
59
+ Yoga Anusandhana
60
+ Samsthana (S‑VYASA),
61
+ Bengaluru, India.
62
+ E‑mail: kanika.yog@
63
+ gmail.com
64
+ Received: 12‑10‑2022
65
+ Accepted: 24‑11‑2022
66
+ Published: 31-05-2023
67
+ Department of Yoga
68
+ and Life Sciences,
69
+ Swami Vivekananda
70
+ Yoga Anusandhana
71
+ Samsthana (S‑VYASA),
72
+ Bengaluru, Karnataka,
73
+ 1Department of
74
+ Panchkarma, Uttarakhand
75
+ Ayurved University,
76
+ Dehradun, Uttarakhand,
77
+ India
78
+ Original Article
79
+ Access this article online
80
+ Quick Response Code:
81
+ Website:
82
+ www.jehp.net
83
+ DOI:
84
+ 10.4103/jehp.jehp_1489_22
85
+ How to cite this article: Verma K, Singh D,
86
+ Srivastava A. Comparative impact of yoga and
87
+ ayurveda practice in insomnia: A randomized
88
+ controlled trial. J Edu Health Promot 2023;12:160.
89
+ This is an open access journal, and articles are
90
+ distributed under the terms of the Creative Commons
91
+ Attribution‑NonCommercial‑ShareAlike 4.0 License, which
92
+ allows others to remix, tweak, and build upon the work
93
+ non‑commercially, as long as appropriate credit is given and
94
+ the new creations are licensed under the identical terms.
95
+ For reprints contact: [email protected]
96
+ [Downloaded free from http://www.jehp.net on Friday, October 20, 2023, IP: 103.5.133.82]
97
+ Verma, et al.: A comparative efficacy of yoga module & nasya karma in insomnia
98
+ 2
99
+ Journal of Education and Health Promotion | Volume 12 | May 2023
100
+ society, many people cannot get adequate sleep and
101
+ endure sleep disturbance.[6‑8] A detailed study shows
102
+ that around 30% of grown��ups show some sleep issues.[9]
103
+ Different measurements can be utilized to characterize
104
+ sleep, such as sleep quality (e.g., fulfilled with sleep),
105
+ sleep amount (e.g., add up to sleep time, sleep period
106
+ time, time in bed), and daytime languor  (e.g., the
107
+ likelihood of falling asleep but alert).[10] An agreement
108
+ that disturbed sleep significantly hinders physical
109
+ and mental well‑being has come.[11] For example,
110
+ destitute sleep has been connected with a lifted hazard
111
+ for cardiovascular illness, diabetes, hypertension,
112
+ mortality, obesity, pain, neurocognitive dysfunction,
113
+ and psychiatric disarranges.[12‑16] Outstandingly, both
114
+ sleep and stress‑responsive physiological frameworks
115
+ are transiently and functionally controlled by the
116
+ biological process, and it has been well established
117
+ that sleep incorporates a close relationship with the
118
+ stress‑responsive physiological frameworks.[17‑20] The
119
+ lack of sleep might impact bodily reactions to stress.[21,22]
120
+ Poor sleep may be an imperative hazard factor for
121
+ stress‑related diseases, including cardiovascular
122
+ illnesses and temperament disorders.[21] Besides this,
123
+ insomnia is often associated with cognitive impairment,
124
+ such as poor memory, attention, concentration, and
125
+ performance of simple tasks.[23] Also, insomnia and
126
+ its associated conditions worsen their quality of
127
+ life.[24] Clinical observations of psychosomatic patients
128
+ indicate that their distorted somatopsychic functioning
129
+ necessitates their practice of yoga‑like therapy.[25] It
130
+ is emphasized that physical yogic exercise is meant
131
+ to prepare the body for mental practices such as
132
+ samadhi.[26] Mindfulness meditation is increasingly
133
+ incorporated into mental health interventions, and its
134
+ theoretical concepts have influenced basic research on
135
+ psychopathology.[27] Yoga is restorative management
136
+ for psychophysiological effects. It incorporates a
137
+ comprehensive approach to physical, mental, and
138
+ spiritual well‑being.[25] Components of yoga have
139
+ been explored for their viability and its practice as
140
+ a comprehensive multi‑component discipline.[25,28,29]
141
+ Sleep and its modifications and management have
142
+ also been explained well in ayurveda. Nidrä is one of
143
+ the three pillars capable of supporting a healthy life.
144
+ The heart is the seat of cetanä. When it is secured by
145
+ thomas (numbness, haziness), all living creatures tend
146
+ to fall asleep. The viewpoints of emotional well‑being,
147
+ nourishment, emaciation, strength and weakness,
148
+ virility, cognition, life, and death depend upon ideal
149
+ sleep.[30] In persons whose Kapha has diminished and
150
+ vätta or pitta has expanded and those whose intellect
151
+ and body are distressed by illness or bodily injury,
152
+ sleep does not be satisfactory, resulting in nidränäç or
153
+ sleep disorder.[31] Many herbal drugs that overcome
154
+ sleep‑related disorders are mentioned. Brahmi
155
+ tail (Bacopa monnieri) is used for Abhyanga because
156
+ of its sedative and medhya properties.[32] The present
157
+ study has novelty as it aimed to compare the potential
158
+ appropriateness and adequacy of a basic yoga module
159
+ with Nasya Karma to alleviate stress and insomnia and
160
+ consequently their cognitive function and quality of
161
+ life. These practices require little preparation that can
162
+ be practiced individually on an everyday premise by
163
+ patients with insomnia.
164
+ Material and Methods
165
+ Study design and sample size
166
+ It was an open‑label, randomized controlled trial. There
167
+ were three groups in total, one for the yoga group (G‑1),
168
+ the second for the ayurveda group  (G‑2), and the
169
+ third for the control group (G‑3). Computer‑generated
170
+ randomization was performed. Participants were
171
+ randomly equally allocated to three groups, yoga
172
+ group  (G‑1), ayurveda group  (G‑2), and control
173
+ group (G‑3). All the groups were assessed on the first
174
+ day before the start of the yoga regime and the 48th day.
175
+ The sample size was calculated based on the previous
176
+ study (Bankar et al., 2013) on the beneficial effects of yoga
177
+ on insomnia.[33] The effect size and its equivalent of partial
178
+ eta square with alpha 0.05 and power 0.9 with three
179
+ groups and three measurements are used to estimate the
180
+ sample size. The optimal sample size estimated is 100.
181
+ With the assumption of attrition rate (~20%) during the
182
+ study, the total sample size planned is 120.
183
+ Study setting and participants
184
+ For the present clinical study, both male and female
185
+ participants were screened based on DSM‑5. The
186
+ participants were recruited from the out‑patient
187
+ department  (OPD) of the Panchakarma Dept. of
188
+ Ayurveda University. The study’s participants were
189
+ included based on the inclusion and exclusion criteria
190
+ below.
191
+ Participant selection criteria
192
+ Participants from 18 to 45  years were included in
193
+ the study, fulfilling DSM‑V criteria for insomnia,
194
+ willing to participate, and physically fit for the yoga
195
+ module and the Nasya procedure. Patients had an
196
+ allergy to oil application primarily through the nasal
197
+ route; any severe respiratory ailments (URTI, allergic
198
+ rhinitis, sinusitis, asthma); any severe psychiatric
199
+ disorder  (schizophrenia, mania, bipolar disorders,
200
+ OCD); chronic illness (diabetes mellitus, hypertension);
201
+ taking medications such as alpha‑blockers, beta‑blockers,
202
+ corticosteroids, ace inhibitors, and statins, drug
203
+ withdrawal syndromes (barbiturates, tranquilizers);
204
+ substance abuse such as alcohol ingestion and withdrawal;
205
+ endocrine or metabolic disorders (hypothyroidism or
206
+ hyperthyroidism); and pregnant and lactating women
207
+ were excluded.
208
+ [Downloaded free from http://www.jehp.net on Friday, October 20, 2023, IP: 103.5.133.82]
209
+ Verma, et al.: A comparative efficacy of yoga module & nasya karma in insomnia
210
+ Journal of Education and Health Promotion | Volume 12 | May 2023
211
+ 3
212
+ Study intervention
213
+ Yoga Group  (G‑1): The yoga session included
214
+ physical activity, relaxation, regulated breathing, and
215
+ philosophical aspects. It was an integrated approach
216
+ to yoga, derived from principles in ancient texts
217
+ emphasizing that yoga should promote health at all
218
+ levels. The session was for 60 minutes daily, 6 days a
219
+ week. The yoga practices followed the approved protocol
220
+ based on a paper by Dr. Manjunath and Dr. Shirley
221
+ Telles, “Influence of Yoga & Ayurveda on self‑rated sleep
222
+ in a geriatric population.”
223
+ Yoga Nidrä – 1 day a week. Jal ëeti – 3 days in a week.
224
+ Ayurveda Group (G‑2): Patients were administered
225
+ in this group’s Nasya  (Pratimarça) procedure. As
226
+ Pratimarça Nasya was a daily regimen, each sitting
227
+ included two drops in each nostril for 48 days, regularly
228
+ in the morning and evening.
229
+ Control Group  (G‑3): This group followed the
230
+ conventional medical treatment. Pre‑post‑intervention
231
+ data were collected. Figure 1 CONSORT flow diagram
232
+ Data collection
233
+ Data were collected from the selected participants
234
+ through four questionnaires as Pittsburgh Sleep Quality
235
+ Index (PSQI), Perceived Stress Scale (PSS), cognitive
236
+ failure questionnaire (CFQ), and WHO Quality of Life
237
+ Scale‑Brief (WHOQOL‑Brief). Details about the nature of
238
+ the study’s intervention were explained to participants,
239
+ and informed consent was taken from them.
240
+ The PSQI questionnaire measures the quality and sleeps
241
+ patterns. It has seven domains measuring “good” to
242
+ “poor” sleep: subjective sleep quality, sleep latency, sleep
243
+ duration, sleep disturbances, habitual sleep efficiency,
244
+ daytime dysfunction, and sleep medication last month.
245
+ The client rates each of these seven domains of sleep.
246
+ Scoring is based on a 0 to 3 scale. Scoring 3 depicts the
247
+ extreme negative on the Likert Scale. A total sum of “5”
248
+ or greater indicates a “poor” sleeper.[34]
249
+ The PSS is a widely used instrument for measuring
250
+ stress. Stressful life events are closely associated with
251
+ the onset of insomnia and are mediated by certain
252
+ predisposing personality factors. Insomniacs, compared
253
+ to controls, tend to be more discontent, both as children
254
+ and as adults, have less satisfying inter‑personal
255
+ relations, and have relatively poor self‑concepts,
256
+ leading to inadequate coping mechanisms for dealing
257
+ with stress.
258
+ All the items on this scale are easy to respond to, and
259
+ alternatives are simple to grasp. All questions are general
260
+ and are relatively free of content specific to any group.
261
+ It consists of 25 items scored on a 5‑point Likert scale
262
+ ranging from 0 (never) to 4 (very often). The questions
263
+ in the PSS ask about thoughts and feelings in the last
264
+ month.[35]
265
+ Assessed for eligibility
266
+ Inclusion criteria
267
+ • Patient fulfilling DSM-5 criteria for
268
+ insomnia.
269
+ • Age – 18 to 45 years.
270
+ • Patients willing to complete our
271
+ treatment schedule.
272
+ • Patient physically fit for the Yoga
273
+ Module
274
+ Randomization (n = 120)
275
+ Allocation
276
+ Yoga Group (n = 40)
277
+ 48 days Yoga practices i.e.,
278
+ consisting of yoga postures,
279
+ breathing practices, relaxation
280
+ and meditation
281
+ Ayurveda group (n = 40)
282
+ 48 days Nasya (Pratimarça)
283
+ procedure
284
+ Control group (n = 40)
285
+ Conventional Treatment
286
+ Follow up
287
+ Lost to follow up (n = 2)
288
+ Lost to follow up (n = 3)
289
+ Lost to follow up (n = 3)
290
+ Analyzed
291
+ Analyzed (n = 37)
292
+ Outcomes
293
+ Stress, cognitive failure, sleep
294
+ quality and quality of life
295
+ Analyzed (n = 37)
296
+ Outcomes
297
+ Stress, cognitive failure, sleep
298
+ quality and quality of life
299
+ Analyzed (n = 38)
300
+ Outcomes
301
+ Stress, cognitive failure, sleep
302
+ quality and quality of life
303
+ Analysis
304
+ Follow up
305
+ Allocation
306
+ Enrollment
307
+ Figure 1: CONSORT Flow Diagram
308
+ [Downloaded free from http://www.jehp.net on Friday, October 20, 2023, IP: 103.5.133.82]
309
+ Verma, et al.: A comparative efficacy of yoga module & nasya karma in insomnia
310
+ 4
311
+ Journal of Education and Health Promotion | Volume 12 | May 2023
312
+ The CFQ is used to measure standard cognitive errors.
313
+ The questionnaire was designed to assess the frequency
314
+ of lapses in three areas, perception, memory, and
315
+ motor function and was proposed by the authors to
316
+ tap a single factor coined “cognitive failures.” It is a
317
+ 5‑point Likert scale ranging from 0 (never) to 4 (very
318
+ often). Respondents were asked to assess the number of
319
+ cognitive failures within the past 4 weeks before filling
320
+ out the questionnaire.[36]
321
+ For measurements of subjective quality of life (QoL), the
322
+ WHOQOL‑Brief was used. The WHOQOL‑Brief (Field
323
+ Trial Version) includes four domains and two items
324
+ scored individually about overall perception of quality
325
+ of life and health. The four domain scores are scaled
326
+ positively. Higher scores indicate a higher quality of
327
+ life. Three items of the WHOQOL Brief must be reversed
328
+ before scoring.[37]
329
+ Data extraction and analysis
330
+ The data extraction was performed on the first day and
331
+ the 48th day for the yoga, ayurveda, and control groups.
332
+ After the pre‑ and post‑intervention data collection,
333
+ data were checked for normality, and appropriate
334
+ statistical tests were applied. The Kolmogorov–Smirnov
335
+ Z test checked the normality of data. The Statistical
336
+ Package for Social Sciences (SPSS version 23, SPSS,
337
+ Inc., Chicago, IL) is used for analysis. All quantitative
338
+ variables were measured as mean, standard deviation,
339
+ and standard error. Proportions and frequencies were
340
+ described for categorical variables and compared using
341
+ the Chi‑square test. All applied statistical tests were
342
+ two‑sided and performed at a significance level of
343
+ P < 0.05. ANOVA (One‑way) was applied to explore
344
+ the between‑ and within‑group differences among three
345
+ study groups. Post hoc analysis, Bonferroni test, was
346
+ performed for multiple comparisons in groups.
347
+ Ethical consideration
348
+ Ethical permission was taken from the Institutional
349
+ Ethical Committee (IEC). An ethical certificate number
350
+ is RES/IEC‑SVYASA/195/2021.
351
+ Results
352
+ Results were analyzed as per protocol analysis. A total
353
+ of 112 participants were analyzed, and the drop‑out
354
+ rate was 6.66%. In the yoga, ayurveda, and control
355
+ groups, 38, 37, and 37 participants were available
356
+ post intervention, respectively. Table 1 describes the
357
+ participant’s sociodemographic characteristics. It
358
+ showed that the mean age of participants was matched,
359
+ and there was no statistically significant difference.
360
+ Sociodemographic classifications were described in the
361
+ table as per modified Kuppuswamy and Udai Pareekh’s
362
+ scale.[38]
363
+ Stress and sleep quality
364
+ Results showed a significant association of selected
365
+ variables such as gender  (<0.05), habitat  (<0.001),
366
+ occupation  (<0.05), marital status  (<0.05), and
367
+ socioeconomic status  (<0.01) with sleep quality.
368
+ Table 1: Sociodemographic characteristics of participants
369
+ Variables
370
+ Categories
371
+ Yoga Group
372
+ (n=40)
373
+ Frequency %
374
+ Ayurveda
375
+ Group (n=40)
376
+ Frequency %
377
+ Control Group
378
+ (n=40)
379
+ Frequency %
380
+ Sleep
381
+ Quality (P)
382
+ Age (Mean±SD)
383
+ 34.6±7.07
384
+ 32.15±6.94
385
+ 31.8±7.24
386
+ Gender
387
+ Male
388
+ 26 (65)
389
+ 22 (55)
390
+ 25 (62.5)
391
+ <0.05*
392
+ Female
393
+ 14 (35)
394
+ 18 (45)
395
+ 15 (32.5)
396
+ Educational Qualification
397
+ Up to 12th standard
398
+ 5 (12.5)
399
+ 4 (10)
400
+ 9 (22.5)
401
+ 0.21
402
+ Graduation
403
+ 22 (55)
404
+ 21 (52.5)
405
+ 20 (50)
406
+ Post‑ Graduation
407
+ 13 (32.5)
408
+ 15 (37.5)
409
+ 11 (27.5)
410
+ Habitat
411
+ Urban
412
+ 35 (87.5)
413
+ 31 (77.5)
414
+ 32 (40)
415
+ <0.001**
416
+ Rural
417
+ 5 (12.5)
418
+ 9 (22.5)
419
+ 8 (20)
420
+ Marital status
421
+ Married
422
+ 32 (40)
423
+ 21 (52.5)
424
+ 24 (60)
425
+ <0.05*
426
+ Single
427
+ 6 (15)
428
+ 10 (25)
429
+ 13 (32.5)
430
+ Separated
431
+ 2 (5)
432
+ 9 (47.5)
433
+ 3 (7.5)
434
+ Occupation
435
+ Government job
436
+ 10 (25)
437
+ 5 (12.5)
438
+ 8 (20)
439
+ <0.01**
440
+ Private job
441
+ 22 (55)
442
+ 26 (65)
443
+ 12 (30)
444
+ Self‑employed
445
+ 1 (2.5)
446
+ 3 (7.5)
447
+ 11 (27.5)
448
+ No occupation
449
+ 7 (17.5)
450
+ 6 (15)
451
+ 9 (22.5)
452
+ Socioeconomic Status
453
+ Lower
454
+
455
+
456
+ <0.001**
457
+ Upper Lower
458
+ 3 (7.5)
459
+ 4 (10)
460
+ 2 (5)
461
+ Lower Middle
462
+ 33 (82.5)
463
+ 31 (77.5)
464
+ 29 (72.5)
465
+ Upper middle
466
+ 4 (10)
467
+ 5 (12.5)
468
+ 9 (22.5)
469
+ Upper
470
+
471
+
472
+
473
+
474
+ Note Chi‑Square’ test, P value significant as * represents <0.05 and ** represents <0.01. SD, standard deviation
475
+ [Downloaded free from http://www.jehp.net on Friday, October 20, 2023, IP: 103.5.133.82]
476
+ Verma, et al.: A comparative efficacy of yoga module & nasya karma in insomnia
477
+ Journal of Education and Health Promotion | Volume 12 | May 2023
478
+ 5
479
+ Table 2 depicts the descriptive statistics for stress and
480
+ sleep quality variables in yoga, ayurveda, and control
481
+ groups. It can be noted that the post‑intervention
482
+ mean ± SD for a perceived stress test was the lowest in
483
+ the yoga group (11.73 ± 1.96), followed by the ayurveda
484
+ group (16.51 ± 4.49) and control group (17.91 ± 4.62).
485
+ Accordingly, yoga practice reduced the stress level of
486
+ insomnia patients more than the ayurveda and control
487
+ groups.
488
+ Simultaneously, participants’ sleep quality was also
489
+ improved in the yoga group (4.63 ± 2.28), followed by the
490
+ ayurveda group (9.18 ± 3.80) and control group (11.86 ± 6.54).
491
+ The lowest mean value can be observed in the yoga group.
492
+ Table 3 describes the results of the ANOVA (one‑way)
493
+ test. All groups have observed that stress variables had
494
+ significant mean differences (F‑26.275, P value 0.011).
495
+ Participants’ sleep quality also had a significant mean
496
+ difference (F‑24.271, P value 0.021) in all groups.
497
+ Table 2: Descriptive statistics for stress, sleep, cognitive failure, and quality of life variables in yoga, ayurveda,
498
+ and control groups
499
+ Dependent
500
+ Variable
501
+ (I) Groups
502
+ n
503
+ Mean
504
+ Std.
505
+ Deviation
506
+ Std. Error
507
+ 95% Confidence Interval for Mean
508
+ Lower Bound
509
+ Upper Bound
510
+ PSS
511
+ 1
512
+ 38
513
+ 11.7368
514
+ 1.96846
515
+ 0.31933
516
+ 11.0898
517
+ 12.3839
518
+ 2
519
+ 37
520
+ 16.5135
521
+ 4.49457
522
+ 0.73890
523
+ 15.0149
524
+ 18.0121
525
+ 3
526
+ 37
527
+ 17.9189
528
+ 4.62108
529
+ 0.75970
530
+ 16.3782
531
+ 19.4597
532
+ Total
533
+ 112
534
+ 15.3571
535
+ 4.67860
536
+ 0.44209
537
+ 14.4811
538
+ 16.2332
539
+ PSQI
540
+ 1
541
+ 38
542
+ 4.6316
543
+ 2.28297
544
+ 0.37035
545
+ 3.8812
546
+ 5.3820
547
+ 2
548
+ 37
549
+ 9.1892
550
+ 3.80670
551
+ 0.62582
552
+ 7.9200
553
+ 10.4584
554
+ 3
555
+ 37
556
+ 11.8649
557
+ 6.54541
558
+ 1.07606
559
+ 9.6825
560
+ 14.0472
561
+ Total
562
+ 112
563
+ 8.5268
564
+ 5.42095
565
+ 0.51223
566
+ 7.5118
567
+ 9.5418
568
+ WHOQOL‑Brief
569
+ General Health
570
+ 1
571
+ 38
572
+ 7.9211
573
+ 1.14801
574
+ 0.18623
575
+ 7.5437
576
+ 8.2984
577
+ 2
578
+ 37
579
+ 7.0811
580
+ 1.32032
581
+ 0.21706
582
+ 6.6409
583
+ 7.5213
584
+ 3
585
+ 37
586
+ 6.5946
587
+ 1.38362
588
+ 0.22747
589
+ 6.1333
590
+ 7.0559
591
+ Total
592
+ 112
593
+ 7.2054
594
+ 1.38940
595
+ 0.13129
596
+ 6.9452
597
+ 7.4655
598
+ Physical
599
+ Health
600
+ 1
601
+ 38
602
+ 29.1053
603
+ 3.02056
604
+ 0.49000
605
+ 28.1124
606
+ 30.0981
607
+ 2
608
+ 37
609
+ 26.1351
610
+ 3.72799
611
+ 0.61288
612
+ 24.8922
613
+ 27.3781
614
+ 3
615
+ 37
616
+ 22.7297
617
+ 4.05277
618
+ 0.66627
619
+ 21.3785
620
+ 24.0810
621
+ Total
622
+ 112
623
+ 26.0179
624
+ 4.44381
625
+ 0.41990
626
+ 25.1858
627
+ 26.8499
628
+ Psychological
629
+ Health
630
+ 1
631
+ 38
632
+ 24.2368
633
+ 3.01738
634
+ 0.48948
635
+ 23.2451
636
+ 25.2286
637
+ 2
638
+ 37
639
+ 21.6486
640
+ 3.19910
641
+ 0.52593
642
+ 20.5820
643
+ 22.7153
644
+ 3
645
+ 37
646
+ 18.8378
647
+ 4.00356
648
+ 0.65818
649
+ 17.5030
650
+ 20.1727
651
+ Total
652
+ 112
653
+ 21.5982
654
+ 4.05916
655
+ 0.38355
656
+ 20.8382
657
+ 22.3583
658
+ Social Health
659
+ 1
660
+ 38
661
+ 12.1842
662
+ 1.81369
663
+ 0.29422
664
+ 11.5881
665
+ 12.7804
666
+ 2
667
+ 37
668
+ 10.7297
669
+ 2.06355
670
+ 0.33925
671
+ 10.0417
672
+ 11.4178
673
+ 3
674
+ 37
675
+ 9.9730
676
+ 1.89277
677
+ 0.31117
678
+ 9.3419
679
+ 10.6041
680
+ Total
681
+ 112
682
+ 10.9732
683
+ 2.12009
684
+ 0.20033
685
+ 10.5762
686
+ 11.3702
687
+ Environment
688
+ Health
689
+ 1
690
+ 38
691
+ 32.8684
692
+ 3.48875
693
+ 0.56595
694
+ 31.7217
695
+ 34.0151
696
+ 2
697
+ 37
698
+ 28.8378
699
+ 5.51520
700
+ 0.90669
701
+ 26.9990
702
+ 30.6767
703
+ 3
704
+ 37
705
+ 25.5135
706
+ 4.65845
707
+ 0.76585
708
+ 23.9603
709
+ 27.0667
710
+ Total
711
+ 112
712
+ 29.1071
713
+ 5.48931
714
+ 0.51869
715
+ 28.0793
716
+ 30.1350
717
+ Cognitive Failure
718
+ Forgetfulness
719
+ 1
720
+ 38
721
+ 10.2632
722
+ 3.20206
723
+ 0.51944
724
+ 9.2107
725
+ 11.3156
726
+ 2
727
+ 37
728
+ 15.1351
729
+ 3.35958
730
+ 0.55231
731
+ 14.0150
732
+ 16.2553
733
+ 3
734
+ 37
735
+ 18.8649
736
+ 6.57927
737
+ 1.08163
738
+ 16.6712
739
+ 21.0585
740
+ Total
741
+ 112
742
+ 14.7143
743
+ 5.80529
744
+ 0.54855
745
+ 13.6273
746
+ 15.8013
747
+ Distractibility
748
+ 1
749
+ 38
750
+ 10.8158
751
+ 3.76940
752
+ 0.61148
753
+ 9.5768
754
+ 12.0548
755
+ 2
756
+ 37
757
+ 14.5676
758
+ 3.64799
759
+ 0.59973
760
+ 13.3513
761
+ 15.7839
762
+ 3
763
+ 37
764
+ 17.0541
765
+ 6.81072
766
+ 1.11968
767
+ 14.7832
768
+ 19.3249
769
+ Total
770
+ 112
771
+ 14.1161
772
+ 5.54709
773
+ 0.52415
774
+ 13.0774
775
+ 15.1547
776
+ False triggers
777
+ 1
778
+ 38
779
+ 11.0789
780
+ 3.07897
781
+ 0.49948
782
+ 10.0669
783
+ 12.0910
784
+ 2
785
+ 37
786
+ 15.5135
787
+ 4.66441
788
+ 0.76682
789
+ 13.9583
790
+ 17.0687
791
+ 3
792
+ 37
793
+ 17.5405
794
+ 7.42965
795
+ 1.22143
796
+ 15.0634
797
+ 20.0177
798
+ Total
799
+ 112
800
+ 14.6786
801
+ 5.95965
802
+ 0.56313
803
+ 13.5627
804
+ 15.7945
805
+ Note: PSS, Perceived Stress Scale; PSQI, Pittsburgh Sleep Quality Scale; WHOQOL‑Brief, WHO Quality of Life Scale‑Brief; Std., standard; Sig., significant.
806
+ Groups: 1, Yoga; 2, Ayurveda; 3, Control
807
+ [Downloaded free from http://www.jehp.net on Friday, October 20, 2023, IP: 103.5.133.82]
808
+ Verma, et al.: A comparative efficacy of yoga module & nasya karma in insomnia
809
+ 6
810
+ Journal of Education and Health Promotion | Volume 12 | May 2023
811
+ Quality of life
812
+ Table 2 also describes the participants’ quality of life
813
+ scores under sub‑heads of general health, physical health,
814
+ psychological health, social health, and environment
815
+ health in all groups. In the yoga group, general health
816
+ scores (7.92 ± 1.14) were nearly similar to those in the
817
+ ayurveda group (7.08 ± 1.32) but higher than those in
818
+ the control group (6.54 ± 1.38).
819
+ Physical health scores were the highest in the
820
+ yoga group  (29.10  ±  3.02) compared to the
821
+ ayurveda (26.13 ± 3.72) and control groups (22.72 ± 4.05).
822
+ The psychological, social, and environmental health
823
+ scores of participants were improved in the yoga
824
+ group compared to the ayurveda and control
825
+ groups [Table 2].
826
+ All five aspects, general health (F‑10.220, P value 0.038),
827
+ physical health (F‑29.087, P value 0.001), psychological
828
+ health (F‑23.23, P value 0.021), social health (F‑12.808,
829
+ P value 0.045), and environmental health (F‑23.849,
830
+ P value 0.013) had a significant mean difference in all
831
+ three groups.
832
+ Cognitive function
833
+ The cognitive Failure questionnaire has been
834
+ divided into three aspects  –  forgetfulness,
835
+ distractibility, and false triggers. Post‑intervention
836
+ mean scores for forgetfulness were the lowest
837
+ in the yoga group  (10.2632  ±  3.20206) compared
838
+ to the ayurveda  (15.1351  ±  3.35958) and control
839
+ groups (18.8649 ± 6.57927). Distractibility scores were
840
+ also the lowest in the yoga group (10.8158 ± 3.76940)
841
+ compared to other groups. The table also depicted the
842
+ lower and upper bounds with a standard error for all
843
+ outcomes in each group [Table 2].
844
+ All three aspects, forgetfulness  (F‑32.477, P  value
845
+ 0.011), distractibility (F‑15.095, P value 0.020), and false
846
+ triggers (F‑14.340, P value 0.001), had significant mean
847
+ Table 3: Mean differences for stress, sleep, cognitive failure, and quality of life in yoga, ayurveda, and control
848
+ groups
849
+ Sum of Squares
850
+ Mean Square
851
+ F
852
+ Sig.
853
+ PSS
854
+ Between Groups
855
+ 790.346
856
+ 395.173
857
+ 26.275
858
+ <0.01**
859
+ Within Groups
860
+ 1639.368
861
+ 15.040
862
+ Total
863
+ 2429.714
864
+ PSQI
865
+ Between Groups
866
+ 1005.078
867
+ 502.539
868
+ 24.271
869
+ <0.05*
870
+ Within Groups
871
+ 2256.842
872
+ 20.705
873
+ Total
874
+ 3261.920
875
+ WHOQOL‑Brief
876
+ General Health
877
+ Between Groups
878
+ 33.838
879
+ 16.919
880
+ 10.220
881
+ <0.05*
882
+ Within Groups
883
+ 180.439
884
+ 1.655
885
+ Total
886
+ 214.277
887
+ Physical health
888
+ Between Groups
889
+ 762.764
890
+ 381.382
891
+ 29.087
892
+ <0.01**
893
+ Within Groups
894
+ 1429.201
895
+ 13.112
896
+ Total
897
+ 2191.964
898
+ Psychological health
899
+ Between Groups
900
+ 546.592
901
+ 273.296
902
+ 23.231
903
+ <0.05*
904
+ Within Groups
905
+ 1282.328
906
+ 11.764
907
+ Total
908
+ 1828.920
909
+ Social health
910
+ Between Groups
911
+ 94.939
912
+ 47.469
913
+ 12.808
914
+ <0.05*
915
+ Within Groups
916
+ 403.981
917
+ 3.706
918
+ Total
919
+ 498.920
920
+ Environment health
921
+ Between Groups
922
+ 1018.102
923
+ 509.051
924
+ 23.849
925
+ <0.01*
926
+ Within Groups
927
+ 2326.612
928
+ 21.345
929
+ Total
930
+ 3344.714
931
+ Cognitive Failure
932
+ Forgetfulness
933
+ Between Groups
934
+ 1396.840
935
+ 698.420
936
+ 32.477
937
+ <0.05*
938
+ Within Groups
939
+ 2344.017
940
+ 21.505
941
+ Total
942
+ 3740.857
943
+ Distractibility
944
+ Between Groups
945
+ 740.808
946
+ 370.404
947
+ 15.095
948
+ <0.05*
949
+ Within Groups
950
+ 2674.683
951
+ 24.538
952
+ Total
953
+ 3415.491
954
+ False triggers
955
+ Between Groups
956
+ 821.233
957
+ 410.616
958
+ 14.340
959
+ <0.01**
960
+ Within Groups
961
+ 3121.196
962
+ 28.635
963
+ Total
964
+ 3942.429
965
+ PSS, Perceived Stress Scale; PSQI, Pittsburgh Sleep Quality Scale; WHOQOL‑Brief, WHO Quality of Life Scale‑Brief; Std., standard; significant mean difference;
966
+ * represents <0.05 and ** represents <0.01. Sig., significant. Groups: 1, Yoga; 2, Ayurveda; 3, Control
967
+ [Downloaded free from http://www.jehp.net on Friday, October 20, 2023, IP: 103.5.133.82]
968
+ Verma, et al.: A comparative efficacy of yoga module & nasya karma in insomnia
969
+ Journal of Education and Health Promotion | Volume 12 | May 2023
970
+ 7
971
+ differences in scores for all three groups [Table 3]. Post
972
+ hoc analysis was also applied for multiple comparisons,
973
+ values which show a significant difference in all
974
+ groups [Tables 4‑6].
975
+ Discussion
976
+ Acute insomnia is considered an emotional disorder. It is
977
+ associated with specific personality traits in patients.[2,3]
978
+ Table 4: Multiple comparisons for stress and sleep quality in all groups
979
+ Dependent Variable
980
+ (I) Groups
981
+ (J) Groups
982
+ MD (I‑J)
983
+ Std. Error
984
+ Sig.
985
+ 95% Confidence Interval
986
+ Lower Bound
987
+ Upper Bound
988
+ PSS
989
+ 1
990
+ 2
991
+ ‑4.77667*
992
+ 0.89570
993
+ <0.01**
994
+ ‑6.9546
995
+ ‑2.5988
996
+ 3
997
+ ‑6.18208*
998
+ 0.89570
999
+ <0.05*
1000
+ ‑8.3600
1001
+ ‑4.0042
1002
+ 2
1003
+ 1
1004
+ 4.77667*
1005
+ 0.89570
1006
+ <0.01**
1007
+ 2.5988
1008
+ 6.9546
1009
+ 3
1010
+ ‑1.40541
1011
+ 0.90165
1012
+ 0.366
1013
+ ‑3.5978
1014
+ 0.7870
1015
+ 3
1016
+ 1
1017
+ 6.18208*
1018
+ 0.89570
1019
+ <0.01**
1020
+ 4.0042
1021
+ 8.3600
1022
+ 2
1023
+ 1.40541
1024
+ 0.90165
1025
+ 0.366
1026
+ ‑0.7870
1027
+ 3.5978
1028
+ PSQI
1029
+ 1
1030
+ 2
1031
+ ‑4.55761*
1032
+ 1.05093
1033
+ <0.01**
1034
+ ‑7.1129
1035
+ ‑2.0023
1036
+ 3
1037
+ ‑7.23329*
1038
+ 1.05093
1039
+ <0.05*
1040
+ ‑9.7886
1041
+ ‑4.6780
1042
+ 2
1043
+ 1
1044
+ 4.55761*
1045
+ 1.05093
1046
+ <0.05*
1047
+ 2.0023
1048
+ 7.1129
1049
+ 3
1050
+ ‑2.67568*
1051
+ 1.05792
1052
+ <0.05*
1053
+ ‑5.2480
1054
+ ‑0.1034
1055
+ 3
1056
+ 1
1057
+ 7.23329*
1058
+ 1.05093
1059
+ <0.01**
1060
+ 4.6780
1061
+ 9.7886
1062
+ 2
1063
+ 2.67568*
1064
+ 1.05792
1065
+ <0.05*
1066
+ 0.1034
1067
+ 5.2480
1068
+ Note: Post hoc analysis, Bonferroni test for multiple comparisons. PSS, Perceived Stress Scale; PSQI, Pittsburgh Sleep Quality Scale; Std., Standard; Significant
1069
+ mean difference; * represents <0.05 and ** represents <0.01. Sig., significant, MD Mean Difference. Groups: 1, Yoga; 2, Ayurveda; 3, Control
1070
+ Table 5: Multiple comparisons for quality of life in all groups
1071
+ Dependent Variable
1072
+ (I) Groups
1073
+ (J) Groups
1074
+ Mean Difference (I‑J)
1075
+ Std. Error
1076
+ Sig.
1077
+ 95% Confidence Interval
1078
+ Lower Bound
1079
+ Upper Bound
1080
+ WHOQOL‑Brief
1081
+ General Health
1082
+ 1
1083
+ 2
1084
+ 0.83997*
1085
+ 0.29716
1086
+ <0.05*
1087
+ 0.1174
1088
+ 1.5625
1089
+ 3
1090
+ 1.32646*
1091
+ 0.29716
1092
+ <0.01**
1093
+ 0.6039
1094
+ 2.0490
1095
+ 2
1096
+ 1
1097
+ ‑0.83997*
1098
+ 0.29716
1099
+ <0.05*
1100
+ ‑1.5625
1101
+ ‑0.1174
1102
+ 3
1103
+ 0.48649
1104
+ 0.29913
1105
+ 0.320
1106
+ ‑0.2409
1107
+ 1.2138
1108
+ 3
1109
+ 1
1110
+ ‑1.32646*
1111
+ 0.29716
1112
+ <0.01**
1113
+ ‑2.0490
1114
+ ‑0.6039
1115
+ 2
1116
+ ‑0 0.48649
1117
+ 0.29913
1118
+ 0.320
1119
+ ‑1.2138
1120
+ 0.2409
1121
+ Physical health
1122
+ 1
1123
+ 2
1124
+ 2.97013*
1125
+ 0.83632
1126
+ <0.01**
1127
+ 0.9366
1128
+ 5.0036
1129
+ 3
1130
+ 6.37553*
1131
+ 0.83632
1132
+ <0.01**
1133
+ 4.3420
1134
+ 8.4090
1135
+ 2
1136
+ 1
1137
+ ‑2.97013*
1138
+ 0.83632
1139
+ <0.01**
1140
+ ‑5.0036
1141
+ ‑0.9366
1142
+ 3
1143
+ 3.40541*
1144
+ 0.84187
1145
+ <0.05*
1146
+ 1.3584
1147
+ 5.4524
1148
+ 3
1149
+ 1
1150
+ ‑6.37553*
1151
+ 0.83632
1152
+ <0.05*
1153
+ ‑8.4090
1154
+ ‑4.3420
1155
+ 2
1156
+ ‑3.40541*
1157
+ 0.84187
1158
+ <0.05*
1159
+ ‑5.4524
1160
+ ‑1.3584
1161
+ Psychological health
1162
+ 1
1163
+ 2
1164
+ 2.58819*
1165
+ 0.79218
1166
+ <0.01**
1167
+ 0.6620
1168
+ 4.5144
1169
+ 3
1170
+ 5.39900*
1171
+ 0.79218
1172
+ <0.01**
1173
+ 3.4728
1174
+ 7.3252
1175
+ 2
1176
+ 1
1177
+ ‑2.58819*
1178
+ 0.79218
1179
+ <0.01**
1180
+ ‑4.5144
1181
+ ‑0.6620
1182
+ 3
1183
+ 2.81081*
1184
+ 0.79744
1185
+ <0.01**
1186
+ 0.8718
1187
+ 4.7498
1188
+ 3
1189
+ 1
1190
+ ‑5.39900*
1191
+ 0.79218
1192
+ <0.001**
1193
+ ‑7.3252
1194
+ ‑3.4728
1195
+ 2
1196
+ ‑2.81081*
1197
+ 0.79744
1198
+ <0.001**
1199
+ ‑4.7498
1200
+ ‑0.8718
1201
+ Social health
1202
+ 1
1203
+ 2
1204
+ 1.45448*
1205
+ 0.44464
1206
+ <0.05*
1207
+ 0.3734
1208
+ 2.5356
1209
+ 3
1210
+ 2.21124*
1211
+ 0.44464
1212
+ <0.001**
1213
+ 1.1301
1214
+ 3.2924
1215
+ 2
1216
+ 1
1217
+ ‑1.45448*
1218
+ 0.44464
1219
+ <0.05**
1220
+ ‑2.5356
1221
+ ‑0.3734
1222
+ 3
1223
+ 0.75676
1224
+ 0.44759
1225
+ 0.281
1226
+ ‑0.3316
1227
+ 1.8451
1228
+ 3
1229
+ 1
1230
+ ‑2.21124*
1231
+ 0.44464
1232
+ <0.001**
1233
+ ‑3.2924
1234
+ ‑1.1301
1235
+ 2
1236
+ ‑0.75676
1237
+ 0.44759
1238
+ 0.281
1239
+ ‑1.8451
1240
+ 0.3316
1241
+ Environment
1242
+ 1
1243
+ 2
1244
+ 4.03058*
1245
+ 1.06705
1246
+ <0.001**
1247
+ 1.4361
1248
+ 6.6251
1249
+ 3
1250
+ 7.35491*
1251
+ 1.06705
1252
+ <0.001**
1253
+ 4.7604
1254
+ 9.9494
1255
+ 2
1256
+ 1
1257
+ ‑4.03058*
1258
+ 1.06705
1259
+ <0.01**
1260
+ ‑6.6251
1261
+ ‑1.4361
1262
+ 3
1263
+ 3.32432*
1264
+ 1.07414
1265
+ <0.01**
1266
+ 0.7126
1267
+ 5.9361
1268
+ 3
1269
+ 1
1270
+ ‑7.35491*
1271
+ 1.06705
1272
+ <0.01**
1273
+ ‑9.9494
1274
+ ‑4.7604
1275
+ 2
1276
+ ‑3.32432*
1277
+ 1.07414
1278
+ <0.05*
1279
+ ‑5.9361
1280
+ ‑0.7126
1281
+ Note: post hoc analysis, Bonferroni test, for multiple comparisons. WHOQOL‑Brief, WHO Quality of Life Scale‑Brief; Std., Standard; significant mean difference;
1282
+ *represents <0.05 and ** represents <0.01. Sig., significant; MD, mean difference; LB, lower bound; UB, upper bound. Groups: 1, Yoga; 2, Ayurveda; 3, Control
1283
+ [Downloaded free from http://www.jehp.net on Friday, October 20, 2023, IP: 103.5.133.82]
1284
+ Verma, et al.: A comparative efficacy of yoga module & nasya karma in insomnia
1285
+ 8
1286
+ Journal of Education and Health Promotion | Volume 12 | May 2023
1287
+ As yoga aims to bring consensus between mind and
1288
+ body,[26,27] this study assessed the effectiveness of a
1289
+ basic set of yoga exercises, requiring little preparation
1290
+ that patients can practice individually on an everyday
1291
+ premise with insomnia. The study compared the results
1292
+ with ayurveda and standard care. This randomized
1293
+ control trial describes yoga as a helpful therapy
1294
+ for acute insomnia patients. After an intervention,
1295
+ participants in the yoga group improved global sleep
1296
+ quality, subjective sleep quality, wake‑after‑sleep onset,
1297
+ daytime dysfunction, and sleep efficiency compared
1298
+ with ayurveda and standard care. In the same group,
1299
+ we also found stress reduction and improved cognitive
1300
+ function and quality of life. Because of physiopathology,
1301
+ insomnia is associated with increased psychological
1302
+ symptoms, cognitive dysfunction, perceived stress, and
1303
+ poor quality of life as precipitating and perpetuating
1304
+ factors.[39,40] Increasing melatonin levels and anxiety
1305
+ reduction affect sleep quality and confirm yoga’s
1306
+ effectiveness in stress reduction.[41] Morning yoga
1307
+ exercise enhances night parasympathetic drive and more
1308
+ curative sleep. In addition, the probable mechanisms
1309
+ were linked to the cognitive structuring effects of the
1310
+ yoga practice.[42] Consistently, studies have reported
1311
+ improvement in objective sleep quality, even measuring
1312
+ by polysomnography and sleep diary.[43,44] Yoga reduces
1313
+ stress and improves general health in the young
1314
+ population by reducing sympathetic activity.[45] Another
1315
+ trial with a mindfulness program for stress reduction
1316
+ suggested significant effects on stress, anxiety, and
1317
+ cognitive emotion regulation (P < 001).[46] Even yoga
1318
+ was safe and effective in improving sleep quality and
1319
+ life in older adults.[47] One week of residential yoga
1320
+ training program reduced the occupational stress in the
1321
+ participants aged 40–59.[48] A quasi‑experimental study
1322
+ states the effectiveness of yoga in coping with stress
1323
+ and anxiety and enhancing happiness in professional
1324
+ students.[49]
1325
+ According to ayurveda, an individual’s nature (Prakriti
1326
+ in Sanskrit) could consist of different doshas, with one
1327
+ dosha being predominant in some cases. Ayurveda looks
1328
+ at several aspects of an individual›s lifestyle.[50] The
1329
+ present study found improvement in sleep quality
1330
+ and reduction in stress with improvement in cognitive
1331
+ function and, ultimately, the quality of life in the ayurveda
1332
+ group compared to standard therapy. However, the
1333
+ scores were not like those of yoga practice but improved
1334
+ compared to standard therapy. Therefore, the role of
1335
+ ayurveda cannot be neglected in patients with insomnia.
1336
+ Previous studies have come up with biochemical,
1337
+ hematological, and physiological variations in different
1338
+ Prakriti, and sleep is also considered to be influenced
1339
+ by psychological factors.[51] Studies also claimed its
1340
+ effectiveness in enhancing memory and cognitive
1341
+ functions.[52,53] Few studies suggested the failure of
1342
+ short‑term effects of Bacopa monnieri supplementation
1343
+ to improve sleep patterns and quality of life in
1344
+ comparison to the placebo in adults with insomnia.[54]
1345
+ In contrast, another trial on healthy adults identified
1346
+ mood‑enhancing effects and reduced cortisol levels,
1347
+ evincing a physiological mechanism for cognitive stress
1348
+ reduction with supplementation of Bacopa monnieri. It
1349
+ was evidenced that Bacopa monnieri supplementation
1350
+ Table 6: Multiple comparisons for cognitive function in all groups
1351
+ Dependent Variable
1352
+ (I) Groups
1353
+ (J) Groups
1354
+ Mean Difference (I‑J)
1355
+ Std. Error
1356
+ Sig.
1357
+ 95% Confidence Interval
1358
+ Lower Bound
1359
+ Upper Bound
1360
+ Forgetfulness
1361
+ 1
1362
+ 2
1363
+ ‑4.87198*
1364
+ 1.07104
1365
+ <0.05*
1366
+ ‑7.4762
1367
+ ‑2.2678
1368
+ 3
1369
+ ‑8.60171*
1370
+ 1.07104
1371
+ <0.05*
1372
+ ‑11.2059
1373
+ ‑5.9975
1374
+ 2
1375
+ 1
1376
+ 4.87198*
1377
+ 1.07104
1378
+ 0.060
1379
+ 2.2678
1380
+ 7.4762
1381
+ 3
1382
+ ‑3.72973*
1383
+ 1.07816
1384
+ <0.05*
1385
+ ‑6.3513
1386
+ ‑1.1082
1387
+ 3
1388
+ 1
1389
+ 8.60171*
1390
+ 1.07104
1391
+ <0.001**
1392
+ 5.9975
1393
+ 11.2059
1394
+ 2
1395
+ 3.72973*
1396
+ 1.07816
1397
+ <0.05*
1398
+ 1.1082
1399
+ 6.3513
1400
+ Distractibility
1401
+ 1
1402
+ 2
1403
+ ‑3.75178*
1404
+ 1.14409
1405
+ <0.001**
1406
+ ‑6.5336
1407
+ ‑0.9699
1408
+ 3
1409
+ ‑6.23826*
1410
+ 1.14409
1411
+ <0.05*
1412
+ ‑9.0201
1413
+ ‑3.4564
1414
+ 2
1415
+ 1
1416
+ 3.75178*
1417
+ 1.14409
1418
+ <0.05*
1419
+ 0.9699
1420
+ 6.5336
1421
+ 3
1422
+ ‑2.48649
1423
+ 1.15169
1424
+ 0.099
1425
+ ‑5.2868
1426
+ 0.3138
1427
+ 3
1428
+ 1
1429
+ 6.23826*
1430
+ 1.14409
1431
+ <0.001**
1432
+ 3.4564
1433
+ 9.0201
1434
+ 2
1435
+ 2.48649
1436
+ 1.15169
1437
+ 0.099
1438
+ ‑0.3138
1439
+ 5.2868
1440
+ False triggers
1441
+ 1
1442
+ 2
1443
+ ‑4.43457*
1444
+ 1.23591
1445
+ <0.01**
1446
+ ‑7.4397
1447
+ ‑1.4295
1448
+ 3
1449
+ ‑6.46159*
1450
+ 1.23591
1451
+ <0.01**
1452
+ ‑9.4667
1453
+ ‑3.4565
1454
+ 2
1455
+ 1
1456
+ 4.43457*
1457
+ 1.23591
1458
+ <0.001**
1459
+ 1.4295
1460
+ 7.4397
1461
+ 3
1462
+ ‑2.02703
1463
+ 1.24412
1464
+ 0.318
1465
+ ‑5.0521
1466
+ 0.9980
1467
+ 3
1468
+ 1
1469
+ 6.46159*
1470
+ 1.23591
1471
+ <0.001**
1472
+ 3.4565
1473
+ 9.4667
1474
+ 2
1475
+ 2.02703
1476
+ 1.24412
1477
+ 0.318
1478
+ ‑0.9980
1479
+ 5.0521
1480
+ Note: Post hoc analysis, Bonferroni test, for multiple comparisons. PSS, Perceived Stress Scale; PSQI, Pittsburgh Sleep Quality Scale; WHOQOL‑Brief, WHO
1481
+ Quality of Life Scale‑Brief; Std., Standard; significant mean difference; * represents <0.05 and ** represents <0.01. Sig., significant; MD, mean difference; LB,
1482
+ lower bound; UB, upper bound. Groups: 1, Yoga; 2, Ayurveda; 3, Control
1483
+ [Downloaded free from http://www.jehp.net on Friday, October 20, 2023, IP: 103.5.133.82]
1484
+ Verma, et al.: A comparative efficacy of yoga module & nasya karma in insomnia
1485
+ Journal of Education and Health Promotion | Volume 12 | May 2023
1486
+ 9
1487
+ produced some adaptogenic and nootropic effects.[55] A
1488
+ systematic review of six randomized controlled trials
1489
+ observed that Bacopa improves memory‑free recall
1490
+ and cognitive abilities in studies across the cognitive
1491
+ domains.[56] Evidence from animal trials has consistently
1492
+ suggested its anxiolytic or antidepressant effects.[57,58] One
1493
+ trial has explored its safety and efficacy in enhancing
1494
+ cognitive performance in participants with age 65 or
1495
+ more.[59]
1496
+ After discussing studies with yoga and ayurveda practice
1497
+ in reducing stress and improving sleep quality, cognitive
1498
+ function, and quality of life, it needs to emphasize
1499
+ that the present study’s results with yoga practice
1500
+ are consistent with previous studies. However, the
1501
+ availability of limited literature with similar efficacy of
1502
+ ayurveda emphasized further research for its acceptance
1503
+ in reducing stress and improving sleep quality, cognitive
1504
+ function, and quality of life.
1505
+ Strength and limitations
1506
+ The present study compared the two interventions (Yoga
1507
+ and Nasya karma) individually with the control group in
1508
+ the same population. The sample size was also adequate,
1509
+ and the drop‑out rate was meager compared to other
1510
+ studies in the same intervention. However, it was an
1511
+ open‑label trial. Subjective questionnaires were used to
1512
+ measure and compare the results.
1513
+ Conclusion
1514
+ The study concluded that yoga as a holistic treatment
1515
+ could bring significant changes in insomnia patients
1516
+ and help with various psychosocial and cognitive
1517
+ parameters, which can ultimately help alleviate stress
1518
+ and improve the quality of life compared to ayurveda
1519
+ and standard therapy. A vital advantage of the yoga
1520
+ intervention is its recognition and acceptance as a health
1521
+ practice, which should also add to the attractiveness of
1522
+ such a treatment for insomnia patients.
1523
+ Declaration of patient consent
1524
+ The authors certify that they have obtained all appropriate
1525
+ patient consent forms. In the form the patient(s) has/
1526
+ have given his/her/their consent for his/her/their
1527
+ images and other clinical information to be reported in
1528
+ the journal. The patients understand that their names
1529
+ and initials will not be published and due efforts will
1530
+ be made to conceal their identity, but anonymity cannot
1531
+ be guaranteed.
1532
+ Financial support and sponsorship
1533
+ Nil.
1534
+ Conflicts of interest
1535
+ There are no conflicts of interest.
1536
+ References
1537
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1538
+ Vahia VN. Diagnostic and statistical manual of mental disorders
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1549
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1586
+ 17. Antonijevic  IA, Steiger  A. Depression‑like changes of the
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+ patients with multiple sclerosis. Psychoneuroendocrinology
1589
+ 2003;28:780‑95.
1590
+ 18. Hori H, Teraishi T, Sasayama D, Ozeki Y, Matsuo J, Kawamoto Y,
1591
+ et al. Poor sleep is associated with exaggerated cortisol response
1592
+ to the combined dexamethasone/CRH test in a non‑clinical
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+ population. J Psychiatr Res 2011;45:1257‑63.
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+ 19. Steiger  A, Dresler  M, Kluge  M, Schüssler P. Pathology
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1597
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+ Sleep Med Rev 2000;4:201–19.
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+ 21. Meerlo P, Sgoifo A, Suchecki D. Restricted and disrupted sleep:
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+ 22. van Dalfsen  JH, Markus  CR. The influence of sleep on
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+ Arunadatta and Ayurveda rasayana of Hemadri. (sutrasthana,)
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+ precipitating, coping, and perpetuating factors over the early
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+ self‑compassion, and quality of life in undergraduate nursing
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+ Cross‑over Study of 320  mg and 640  mg Doses of Bacopa
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subfolder_0/Complexity Biology based Information Structures can explain.txt ADDED
@@ -0,0 +1,562 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Cosmos and History: The Journal of Natural and Social Philosophy, vol. 10, no. 1, 2014
2
+
3
+
4
+ COMPLEXITY BIOLOGY-BASED INFORMATION
5
+ STRUCTURES CAN EXPLAIN SUBJECTIVITY,
6
+ OBJECTIVE REDUCTION OF WAVE PACKETS,
7
+ AND NON-COMPUTABILITY
8
+ Alex Hankey
9
+
10
+
11
+
12
+ Abstract:
13
+ Background: how mind functions is subject to continuing scientific discussion. A simplistic
14
+ approach says that, since no convincing way has been found to model subjective experience,
15
+ mind cannot exist. A second holds that, since mind cannot be described by classical physics, it
16
+ must be described by quantum physics. Another perspective concerns mind’s hypothesized
17
+ ability to interact with the world of quanta: it should be responsible for reduction of quantum
18
+ wave packets; physics producing ‘Objective Reduction’ is postulated to form the basis for mind-
19
+ matter interactions. This presentation describes results derived from a new approach to these
20
+ problems. It is based on well-established biology involving physics not previously applied to the
21
+ fields of mind, or consciousness studies, that of critical feedback instability.
22
+ Methods: ‘self-organized criticality’ in complexity biology places system loci of control at
23
+ critical instabilities, physical properties of which, including information properties, are
24
+ presented. Their elucidation shows that they can model hitherto unexplained properties of
25
+ experience.
26
+ Results: All results depend on physical properties of critical instabilities. First, at least one
27
+ feed-back or feed-forward loop must have feedback gain, g = 1: information flows round the
28
+ loop impress perfect images of system states back on themselves: they represent processes of
29
+ perfect self-observation. This annihilates system quanta: system excitations are instability fluctuations,
30
+ which cannot be quantized. Major results follow:
31
+ 1. Information vectors representing criticality states must include at least one attached information
32
+ loop denoting self-observation.
33
+ 2. Such loop structures are attributed a function, 'registering the state’s own existence',
34
+ explaining
35
+
36
+ a. Subjective ‘awareness of one’s own presence’
37
+
38
+ b. How content-free states of awareness can be remembered (Jon Shear)
39
+
40
+ c. Subjective experience of time duration (Immanuel Kant)
41
+
42
+ d. The ‘witness’ property of experience – often mentioned by athletes ‘in the zone’
43
+ www.cosmosandhistory.org
44
+ 237
45
+
46
+ COSMOS AND HISTORY
47
+ 238
48
+
49
+ e. The natural association between consciousness and intelligence
50
+ This novel, physically and biologically sound approach seems to satisfactorily model
51
+ subjectivity.
52
+ Further significant results follow:
53
+ 1. Registration of external information in excited states of systems at criticality reduces external
54
+ wave-packets: the new model exhibits ‘Objective Reduction’ of wave packets.
55
+ 2. High internal coherence (postulated by Domash & Penrose) leading to a. Non-separable
56
+ information vector bundles. b. Non-reductive states (Chalmers' criterion for experience)
57
+ 3. Information that is: a. encoded in coherence negentropy; b. non-digitizable, and therefore c.
58
+ computationally without digital equivalent (posited by Penrose).
59
+ Discussion and Conclusions: instability physics implies anharmonic motion, preventing
60
+ excitation quantization, and totally different from quantum physics of simple harmonic motion
61
+ at stability. Instability excitations are different from anything hitherto conceived in information
62
+ science. They model aspects of mind never previously treated, including genuine subjectivity,
63
+ objective reduction of wave-packets, and inter alia all properties given above.
64
+ KEYWORDS: Complexity; Information structures; Subjectivity; Objective Reduction of Wave
65
+ Packets; Roger Penrose; Alan Chalmers
66
+ INTRODUCTION
67
+ In the early 1990’s, after consulting myself, publisher Keith Sutherland recruited
68
+ Professor Jonathan Shear to help him found the Journal of Consciousness Studies, thus
69
+ bringing a new channel of publication to the field of consciousness research.
70
+ Sutherland had been stimulated by Penrose’s monumental book, The Emperor’s New
71
+ Mind, strongly arguing that analysis of the halting problem, and other aspects of
72
+ computational theory, implied that human information processing was not
73
+ computable (1). This point developed the suggestion by Penrose’s Oxford colleague, J.
74
+ Lucas, that metamathematical theorems imply the existence of consciousness, a point
75
+ supported by Penrose, based on his experience of mathematical intuition, and its role
76
+ in guiding discovery in mathematics.
77
+ The rest is history: in 1994, David Chalmers published his magnificent JCS paper
78
+ (2), amplified in his book, The Conscious Mind (3), which became the reference point for
79
+ all subsequent work in the field, from Jon Shear’s book of papers, ‘Consciousness the
80
+ Hard Problem’ (4), in which Chalmers refuted all objections to his proposals, to the
81
+ Penrose and Hameroff collaboration (5) now dominating the field. Key points made by
82
+ Chalmers were, inter alia, (A) to deny conscious experience as an ingredient of creation
83
+ is inadmissible i.e. the subjective aspect of mind, with its sense of ‘self’, whatever that
84
+ may mean, is undeniable. (B) Consciousness needs to be admitted as an a priori
85
+ ingredient of creation, as fundamental as the electron or matter-energy. (C) Since
86
+ reductive explanations of consciousness had failed, any explanation should be non-
87
+
88
+ ALEX HANKEY
89
+ 239
90
+ reductive in nature, and (D) the brain must support special information states with a
91
+ ‘Dual Aspect’: in addition to ordinary information content, they must possess an
92
+ additional aspect permitting them to support subjective experience. Chalmers’s points,
93
+ including several others in addition to these four, have served as the anvil, on which all
94
+ work in the field has since been forged.
95
+ Chalmers’s main point (1) was that the existence and nature of experience IS the
96
+ hard problem. It can be restated as follows: all of us, when we experience anything,
97
+ carry a ‘sense of our own presence’, of which we may be more or less strongly aware at
98
+ different times. When we recall a story from our life, our memory includes a ‘sense of
99
+ our own presence’ at the events we describe e.g. when our name was called out in a
100
+ roll call in class at school and we replied, ‘Present!’, our response affirmed our ‘sense of
101
+ our own presence’ in class. This factor both affirms the non-triviality of subjective
102
+ experience, and identifies what is needed to explain it: something that carries a sense
103
+ of being in ‘Time present’ (as TS Eliot puts it) (6). That is what is really required.
104
+ A largely unrecognized problem is that Chalmers’s points have not been
105
+ sufficiently rigorously implemented. The general attitude on how to represent states of
106
+ experience in physical terms is exemplified by the tacit point in the many books by
107
+ Amit Goswami (7): since classical physics cannot represent conscious experience,
108
+ quantum physics must be used to do so (sotto voce: quantum theory is all that is
109
+ available). Goswami waxes eloquent on all that can supposedly be achieved using
110
+ quantum theory, but that approach fails to take into account that standard quantum
111
+ theory is used to represent matter, so to use it to try to represent states of experience fails to
112
+ distinguish between object and subject in any fundamental way. It trivializes Chalmers’s points.
113
+ Similarly, quantum theory is basically reductive in nature (states of many particles
114
+ are represented as products) - one reason why physics likes it. Though Chalmers states
115
+ that a non-reductive theory is required to represent experience (1), in practice, no one has
116
+ proposed an intrinsically non-reductive theory to do so. All uses of quantum theory,
117
+ including the latest Hameroff-Penrose proposals (5), fail to provide the inherently non-
118
+ reductive information states required to properly fulfil Chalmers’s requirement: no
119
+ reason is given for the chosen states to be anything other than states of objective
120
+ matter!
121
+ This paper proposes to remedy these defects in current theory by adopting a
122
+ radically different approach based on theories of regulation emerging from complexity
123
+ biology, The supposed seat of conscious experience, the brain, is the ultimate regulator
124
+ of the body, so its complexity states constitute an obvious place to start a search for
125
+ possible physical states serving as the basis for experience. Indeed, conscious
126
+ experience may be considered the highest level of overall control in the brain, which
127
+
128
+ COSMOS AND HISTORY
129
+ 240
130
+ provides many inputs to induce it to take appropriate action, but leaves final decisions
131
+ in the experiencer’s hands. Biologically speaking, this is precisely the place to start,
132
+ Complexity biology is remarkable for the obscurity of its new concepts: fractality,
133
+ edge of chaos, and self-organized criticality. Their biological rationale is not given.
134
+ ‘Criticality’, the central concept, may be very simply stated, however: organisms prefer
135
+ their regulatory systems loci of control to be at critical feedback instabilities. Since
136
+ conscious experience is at the locus of control of the whole organism, feedback instability
137
+ becomes the physical condition of choice to consider as a possible basis for experience.
138
+ When Norbert Wiener first proposed his revolutionary new theory of control in
139
+ Cybernetics (8), he pointed out that all control requires feedback, which entails the
140
+ possibility of feedback instability, a mathematical ‘singularity’, with mathematical
141
+ physics as different from the physics of ordinary matter as is conceivable. Next, we list
142
+ various properties of feedback instabilities, in preparation for their use to explain
143
+ fundamental properties of experience in the following section.
144
+ METHODS
145
+ Instability only happens when the potential well for system restorative forces is not
146
+ described by the usual Hook’s Law form y = ax2, but rather y = axp, where p > 2 or
147
+ even p > 4,, making the well flat at its minimum. Energy levels are not evenly spaced:
148
+ system oscillations are neither simple harmonic, nor quantizable. Quantum theory breaks down.
149
+ (I)
150
+ Instead of being oscillations with well-defined frequencies independent of
151
+ amplitude, as in all quantum systems, frequencies are highly amplitude dependent,
152
+ and unpredictable. Excitations cannot be separated into a set of fixed frequency
153
+ oscillators – the idea of harmonic analysis in terms of normal modes does not hold.
154
+ Instead, the system becomes subject to long range correlations, representing a new
155
+ kind of ordering principle. (II)
156
+ Many authors have recognized that living organisms seem to possess abnormally
157
+ low entropy (9). Analysis of correlations at critical instabilities offers a rigorous reason for
158
+ this to hold: correlations endow a system with a form of order i.e. negative entropy. (III)
159
+ More importantly, if a system possess long range coherence, its excited states
160
+ cannot be separated into, or reduced to, mutually independent states, as in normal
161
+ mode analysis. Such a system is therefore non-reductive. Chalmers’s important point, (C)
162
+ above, is satisfied, now by the physics itself, not merely supposedly, in the philosophy.
163
+ (IV)
164
+ Next, consider the nature of the feedback leading to the instability. Critical
165
+ feedback occurs when a particular loop, possibly part of a complex system of loops,
166
+
167
+ ALEX HANKEY
168
+ 241
169
+ attains of feedback gain, g, of precisely g = 1. But when information travels round a
170
+ (possibly multi-channel) loop with g = 1, the information returning to a given point is
171
+ unchanged, it constitutes a faithful reproduction of the information that started. In a
172
+ profound sense, the loop represents a self-observing system. (V)
173
+
174
+ Comments: a. A more labored, but better proof may be obtained by considering
175
+ how changes in the physics as g approaches the value 1 from below. b. The above
176
+ example is not at all the same as that of a video-camera looking in a mirror, or a lady
177
+ doing her make-up, or like looking at oneself between two mirrors, with an infinite set
178
+ of images receding into the distance, or slowly bending out of sight, due to the tiny
179
+ angle between the planes of the mirrors. It constitutes a completely new and original
180
+ definition, not previously proposed.
181
+ Since a flow of information brings a system with intelligent understanding,
182
+ ‘knowledge’, a system that is ‘self-observing’ due to a loop of circulating information,
183
+ becomes a potential candidate for a ‘system with self-knowledge’. (VI)
184
+ This idea that a system at a critical instability forms a ‘self-observing system’ may
185
+ seem naïve, but, for the following reason, it is highly non-trivial: it provides an
186
+ explanation, complementary to (I) and (III) above, for why such systems are non-
187
+ quantizable. In quantum theory, the quantum theory of observation states that a
188
+ process of observation annihilates quanta. A ‘self-observing system’ would annihilate all system
189
+ quanta by means of the process of self-observation. That is the dynamic reason why no quanta
190
+ are found in such systems, and they are not quantizable (VII)
191
+ Now consider the nature of excitations at critical instabilities: they are not simple
192
+ harmonic oscillations but complex, correlated mixtures known as critical fluctuations.
193
+ Their physics is responsible for all the properties of critical points. They cannot be
194
+ represented in a Hilbert Space, as is normally the case in quantum theory, for states in
195
+ Hilbert Spaces are, in principle, separable into individual states that can may
196
+ subsequently become superimposed. This luxury is not the case for critical
197
+ fluctuations, which are irreducible mixtures, inherently non-reductive members of a
198
+ different kind of mathematical ‘space’, called a ‘Banach Space’. (VIII)
199
+ Now consider information properties of such states: (a) they are mixtures, meaning
200
+ that they automatically have non-zero information; they are not like quantum
201
+ information vectors, each with zero intrinsic meaning, like letters of the alphabet. More
202
+ importantly (b) they carry the critical, g = 1, ‘self-observing’ information loop as an
203
+ irreducible aspect of their information properties. We therefore propose to represent
204
+ them as a vector bundle <===== with an added information loop: O. In other
205
+ words: <===== + O <=====O. (IX)
206
+
207
+ COSMOS AND HISTORY
208
+ 242
209
+ Criticality states are located at ‘The Edge of Chaos’ meaning that they are
210
+ adjacent to a region containing many bifurcations. (X)
211
+ RESULTS
212
+ Now let us apply the above properties of systems at critical feedback instabilities to
213
+ derive different aspects of conscious experience. Instability physics is completely
214
+ different from stability, so many new possibilities may emerge. First, consider how
215
+ information structure (IX) applies to experience.
216
+ The information structure of the critical fluctuations (IX) carries information
217
+ content in the vector mixture bundle <=====, and also the information loop O,
218
+ representing a process of self-observation potentially yielding self-knowledge (VI). In
219
+ the 1980’s, dictionary definitions of consciousness was ‘possessing self-knowledge’, so
220
+ this seems promising.
221
+
222
+ We therefore hypothesize that: The loop may be attributed a function, 'registering the state’s
223
+ own existence', analogous to humans ‘being aware of their own presence’ during experience.
224
+
225
+ The hypothetical nature of this statement is important to understand. The idea that
226
+ these states may represent experience is not deductive, but inductive. It represents an
227
+ entirely new departure in scientific thought. The reasoning offered in this section
228
+ serves to justify this hypothesis
229
+ The role of the loop can also be understood by considering the approach to pure
230
+ consciousness in meditation, described in detail by Shear and others. In self-
231
+ transcending meditation systems, the content of the mind is allowed to die away, until
232
+ one is left in a state of pure self-awareness. This can be represented by the sequence:
233
+
234
+ <=====O <====O <===O <==O <=O <O
235
+ The zero vector at end right has zero information content, but the information
236
+ loop is still present, indicating the system is in a state of pure self-observation, or self-
237
+ knowledge. But this is precisely how pure consciousness is traditionally described:
238
+ sensory, affective, mental and intellectual aspects of awareness have died away, and all
239
+ that remains is a pure ‘sense of one’s own presence’. This is exactly what the
240
+ information loop, O, was intended to represent. In other words, the analysis of pure
241
+ consciousness as experienced in meditation, illustrates how the vector bundle
242
+ <=====, combined with an information loop O, represents an information state
243
+ carrying information, together with a ‘sense of the experiencing subject’s own
244
+ presence’. According to Shear, the universal, trans-cultural experience of such states is
245
+
246
+ ALEX HANKEY
247
+ 243
248
+ not of unconsciousness, or sleep, but of heightened awareness, 'Pure Consciousness', in
249
+ which awareness of 'Self' alone remains.
250
+ To summarize, information states for excitations of critical feedback instabilities,
251
+ <=====O, possess precisely the aspects required to represent experience. Chalmers’
252
+ deeply insightful requirement of ‘Dual Aspect Information States of Consciousness’ is
253
+ satisfied in a highly non-trivial way – the ‘Dual Aspect’ for subjectivity is precisely
254
+ represented by the information loop!
255
+ A further implication of the analysis of <O as the aspect of <=====O remaining
256
+ in the state of pure consciousness, is that the information loop <O is responsible for
257
+ the inner experience of the passage of time, first attributed to the mind’s inner sense by
258
+ the great German philosopher, Immanuel Kant. This is plausible, because at the
259
+ singularity the loop is essentially infinitesimal. The information rotates around it
260
+ effectively at infinite frequency generating a continuity of experience of time passing.
261
+ To contemporary neuroscience, this experience presents a paradox, for scanning of
262
+ cortices takes place at regular intervals, yet inner experience is one of a continuous
263
+ flow of time passing. This conflict is resolved by the model attributing the subjective
264
+ sense of time to the loop <O, rather than to changes in the external information
265
+ content represented by <=====.
266
+ Finally, the theory of meditation from the ancient tradition of Yoga states that
267
+ experience has two aspects, one involved in experience, and the other a witness,
268
+ uninvolved in it. The Mundaka Upanishad likens experience to two birds in a tree: the
269
+ first pecks the fruit, while the second looks on the roles of <===== and <O. The role
270
+ of meditation is said to be to strengthen the witness <O, until that dominates
271
+ experience and the sense of Being is no longer overshadowed by activity (10). Clearly,
272
+ in the model, the role of meditation is to grow the experience of <O, and diminish
273
+ experience of <=====. It allows neuroplasticity to convert <=====O into <=O.
274
+ The proposal for representing experience by criticality states thus yields an accurate
275
+ model of the long-term effects of regular meditation.
276
+ Point VII, that a g = 1 loop annihilates quanta, i.e. reduces wave packets, means
277
+ that the proposal includes a new form of objective reduction of wave packets, similar to, but
278
+ different from the OR proposed by Penrose: similar in that mathematical singularities
279
+ are identified as the root cause, but different in that the singularities are caused by
280
+ feedback singularities rather than quantum gravity ones. Critical feedback systems
281
+ reduce all wave-packets, even external ones fed into the system. When the system
282
+ registers information in excited states, the same non-linearity reduces external wave-
283
+ packets, yielding a model for the OR of the wave packet by consciousness.
284
+
285
+ COSMOS AND HISTORY
286
+ 244
287
+ Intelligence: a vitally important aspect of subjective awareness is its apparently
288
+ integral ability to take decisions and make choices. It is difficult to imagine being
289
+ aware without the accompanying sense of likes and dislikes, and the inclinations to
290
+ choose the former and reject the latter. How can the experiencing subject make such
291
+ choices? The present model suggests a way. A critical system is at the ‘Edge of Chaos’
292
+ (X), so brief incursions into the chaos region are possible to make selected trajectories
293
+ pass on a chosen side of a given bifurcation point. Choice thus becomes possible,
294
+ providing a plausible basis for the universally experienced connection between 'self-
295
+ awareness' and the 'ability to make decisions' that characterizes conscious experience.
296
+ IMPLICATIONS FOR COGNITIVE SCIENCE
297
+ States of experience are cognitive states, so if dual aspect vector mixture bundles,
298
+ <=====O, represent states of experience, they must also be cognitive states, and form
299
+ the basis for a new approach to cognitive science. But what kind of cognition does this form of
300
+ cognitive science support? Certainly not the digital, reducible, form in video recorders
301
+ and films based on digital encoding, for as we have seen the physics of the states is
302
+ non-reductive.
303
+ The long-range correlations offer a means to estimate the quantity of information
304
+ encoded into the vector mixture states, for correlations create order, which translates
305
+ into negative entropy, a standard measure of information content. We therefore
306
+ propose (III, above) that criticality states support a new kind of information: system-
307
+ wide correlational, negentropy information.
308
+ This has several significant consequences:
309
+ 1. The extreme dynamic, fluid nature of correlations in such systems, their
310
+ correlational information cannot be validly presented by fixed classical entities,
311
+ like digits. It represents a 'subtle form of information' with no digital equivalent. It
312
+ cannot be digitized.
313
+ 2. Furthermore, any information processing undergone by such information must be
314
+ unrelated to digital processing, and cannot be represented digitally. This property
315
+ which Penrose spent ten years or so trying to establish through meta-mathematics
316
+ seems to fall out of the hypothesized structure, simply by virtue of the definition of
317
+ the class of systems (instabilities), the kind of excitations (inherently non-separable
318
+ mixtures), and the class of information that they can support (coherence
319
+ information, carried by internal system correlations). Penrose’s thesis in ‘The
320
+ Emperor’s New Mind’ (1), and its sequel (11), is completely supported, no laborious
321
+ hundred page proof seems to be required.
322
+ 3. Consciousness is associated with high levels of correlation, as first, Domash (12),
323
+ and second, Penrose (1), have conjectured. Objections overruled them: quantum
324
+
325
+ ALEX HANKEY
326
+ 245
327
+ correlations do not exist at the temperatures required to support life. Our proposal
328
+ resolves this conflict: correlations are not quantum mechanical, but long-range
329
+ criticality correlations.
330
+ These points lay the groundwork for considering criticality excitations as cognitive
331
+ states. The states are not digitizable, and their information is not reductive, rather it is
332
+ correlational, non-reductive, system spanning, and holistic. But to what could holistic
333
+ information refer? Here again, Immanuel Kant provides the key (13) in his concept of the
334
+ ‘transcendental unity of apperception’: the nature of apperception is to ‘grasp the
335
+ whole’, and to see things in terms of Gestalts, as later generations of German cognitive
336
+ scientists put it. Viewed as cognitive states, criticality forms the basis for a biophysical theory of
337
+ Gestalt Cognition that can be realized in nervous systems because neuronal networks can
338
+ support critical instabilities.
339
+ IMPLICATIONS FOR NEUROSCIENCE
340
+ Neuroscience has long been dominated by McCullough’s conjecture, that neuronal
341
+ states of firing and not firing are equivalent to digital states one and zero respectively,
342
+ implying that they only use digital information. Now, however, the questions are, first,
343
+ how can neuronal networks support instability states, and, second, why should they do
344
+ so? The answers are straightforward.
345
+ 1. There is a well-known isomorphism between neural nets and spin glasses, meaning
346
+ that neural nets are capable of phase transition behaviors, and accompanying
347
+ critical point phenomena of arbitrary complexity, such as tricritical points (14),
348
+ and higher order critical points (15,16).
349
+ But why should these be necessary? Therein lies answer
350
+ 2. Kauffman (17) found that genetic networks only function effectively at ‘The Edge of
351
+ Chaos’, meaning that they contain critical instabilities. But there is no limit to
352
+ the complexity of critical instabilities that genetic networks may contain.
353
+ Ayurveda’s Tridosha system of overall organism regulation (18) suggests that a
354
+ 1-to-3-furcation coordinates overall system function, requiring a tricritical
355
+ point. Various 1-to-5-furcations, as in fingers and toes, or Ayurveda’s five
356
+ subdoshas, require higher order critical points.
357
+ In order to control organism function precisely, its regulatory systems must be
358
+ capable of modeling such mathematical singularities accurately. Their control systems must
359
+ support higher order critical points. The neural net-spin glass isomorphism uniquely qualifies
360
+ neuronal networks to do so. Hence, even an organism as simple as C. Elegans contains
361
+ a network of neurons. Why? Because it can model and regulate its genetic network
362
+ with all its complex critical instabilities! That is the fundamental reason why neuronal
363
+ networks were selected to regulate genetic networks.
364
+
365
+ COSMOS AND HISTORY
366
+ 246
367
+ EXPERIMENTAL VERIFICATION
368
+ Experimental support for some of the above proposals seems to exist. Freeman (19)
369
+ cites evidence that, in the EEG, wave packets representing thoughts satisfy self-organized
370
+ criticality, the fundamental principle of complexity biology supporting criticality. This
371
+ seems to indicate that states of mental experience satisfy criticality, confirming our proposal,
372
+ though further work is needed to verify this. The criticality approach provides a theory
373
+ justifying Freeman's suggestion.
374
+ The idea that experience information is registered as correlations also has strong
375
+ circumstantial evidence: it provides a theory (to be published separately) for
376
+ Sheldrake’s ‘Seventh Sense Communication’, recounted in his books, ‘Dogs that
377
+ Know when their Masters are Coming Home’ (20), and ‘The Sense of Being Stared
378
+ At’ (21). Sheldrake calls direct information transfer between mentally attuned minds a
379
+ ‘seventh sense’ (20). Such information transfer can be modeled as a form of ‘quantum
380
+ teleportation’ of information between coherent states in different minds – i.e. it
381
+ becomes available when information is registered in correlations. Seventh Sense
382
+ Communication therefore provides direct evidence for correlational encoding of
383
+ information.
384
+ Finally, the idea that minds register ‘holistic information’ as gestalts is illustrated by
385
+ Sheldrake’s story of ’Nkosi the African Grey parrot. ’Nkosi can accurately call out the
386
+ names of images viewed by her mistress in another room (20). Only gestalt image
387
+ encoding can provide a plausible explanation for such seventh sense visual information
388
+ transfer. Significantly, the story implies that the gestalt image encoding was established before
389
+ dinosaurs, from which birds are descended, diverged from reptiles, from which mammals come. It is
390
+ very ancient.
391
+ (Another reason for encoding images as gestalts is that criticality physics exhibits
392
+ scale invariance, so the encoded images are scale free and can be recognized
393
+ independently of distance – very necessary for an animal needing to distinguish friend
394
+ and foe, family from predator.)
395
+ DISCUSSION
396
+ Many if not most of the fundamental properties of experience have been derived from
397
+ the properties of critical instabilities in complexity biology. Instability physics is totally
398
+ different from the physics of stability. That previously unexplained properties of
399
+ biological systems should be explainable in terms of critical instabilities occurring in
400
+ complexity biology is not surprising. That they should explain so many demonstrated
401
+ and hypothesized properties of conscious experience is remarkable – even compelling.
402
+
403
+ ALEX HANKEY
404
+ 247
405
+ To clarify the key point that information structures of criticality states must include
406
+ information loops, consider the following analogy, the generality of which provides a
407
+ ‘proof by illustration’. A fluid system at its ‘critical Reynolds number’ shows a similar
408
+ instability in its system of flow vectors, which are no longer exactly stable, but carry the
409
+ possibility of a tiny vortex forming at each point in the fluid, the presence of which
410
+ causes instability. To denote a flow vector at such an instability, we add an unmanifest
411
+ loop to it, indicating its potential to form a vortex loop.
412
+ All such fluid systems can be regarded as information systems, in which the fluid
413
+ flow carries information. By analogy, at critical feedback instabilities, flows round
414
+ feedback loops causing the instabilities should be included in descriptions of each
415
+ system state. Information vector mixtures denoting criticality states should therefore include attached
416
+ information loops. QED
417
+ Now consider the implications of the theory for philosophies of mind such as
418
+ Cartesian duality or embodiment. Clearly, critical fluctuations at feedback instabilities
419
+ considered as Dual Aspect Information States of Experience, are completely distinct
420
+ from states of matter. Descartes rightly observed that mind as experienced by human
421
+ beings is in complete contrast to matter. Criticality based models of states of mind
422
+ preserve Descartes’ distinction between Mind and Matter:
423
+
424
+ Matter forms stable systems represented by excitations of systems of simple
425
+ harmonic oscillators that are simply quantizable e.g. ordinary quantum
426
+ fields.
427
+
428
+ Excitations of 'Mind', information states of experience, are represented by
429
+ excitations of anharmonic oscillators with potential well exponents > 2 or
430
+ even 4.
431
+ In the approach proposed here, phenomena in complexity biology are explicitly used to
432
+ model the mind-body connection. The machinery of conscious experience is linked to
433
+ structures considered the most complex in biology, probably in the entire natural
434
+ world. This seems natural: biology’s most sophisticated patterns of organization are
435
+ used to model its most complex (epi)phenomena. The proposed model thus effectively
436
+ confines ‘mind’ to the world of biology, as it should.
437
+ That the structure to which mind is proposed to couple is integral to all systems of
438
+ biological regulation is also appropriate: regulation requires feedback, and all feedback
439
+ contains the possibility of critical feedback instability. Indeed, Norbert Wiener (8)
440
+ identified feedback instability as the most significant innovation in physical theory
441
+ added by his account of regulation and control. But apparently no one has previously
442
+ considered their information properties, let alone how they may related to experience,
443
+ as proposed here.
444
+
445
+ COSMOS AND HISTORY
446
+ 248
447
+ Subjectivity is deeply connected to intelligence and control. That feedback
448
+ instabilities and their (non)quantum properties should offer the key to understanding
449
+ experience is satisfying. Stability is characteristic of ‘matter’, to which instability seems,
450
+ in contrast, an irrelevant complication.
451
+ Convinced materialists may, possibly rightfully, claim that they have no need of
452
+ ‘Mind’ to understand a purely material universe, as they understand the world of
453
+ perception. However, instability states seem to play a special role in supporting
454
+ ‘experience’ in precisely the ways defined by Chalmers (1). The simple and
455
+ straightforward emergence of many properties of mind and subjective experience
456
+ previously only hypothesized brings confidence in the proposal.
457
+ CONCLUSIONS
458
+ A hitherto unsuspected, new form of information, ‘experience information’ has been
459
+ defined by considering information properties of excitations of a system at criticality –
460
+ critical fluctuations. Many reasons have been given for equating it with information
461
+ used cognition by experiencing subjects. Chiefly, the information loop(s), integral to its
462
+ information vector mixtures, can model the ‘sense of one’s own presence’ intrinsic to
463
+ subjective experience. Whether or not this is really the case for actual states of
464
+ experience should be subject to further theoretical and experimental investigation.
465
+ That self-organized criticality should apply to EEG wave packets associated with
466
+ mental cognition thus seems natural and appropriate. Freeman’s approach may play a
467
+ guiding role in helping form useful hypotheses for further research.
468
+ The theoretical work presented here provides prima facie reasoning for how all
469
+ this happens: information states built out of criticality excitations carry at least one g =
470
+ 1 information loop associated with feedback instability. Interpretation of such loops as
471
+ perfect self-observing systems, suggests a physiological basis for the subjective sense of
472
+ being present in every situation, and thus for the sense of ‘self’ integral to human
473
+ experience. The proposed models may therefore account for the sense of subjectivity
474
+ accompanying human experience.
475
+ The occurrence of the g = 1 loops at loci of control adopted by complex
476
+ biosystems under self-organized criticality seems intuitively correct. It leads to another
477
+ serendipitous property of the proposed model: systems of the required complexity are
478
+ found exclusively in biosystems, and not in the world of ordinary matter, explaining
479
+ experience’s restriction to the world of biology.
480
+ The use of critical feedback instabilities from biological complexity to model
481
+ ‘experience’ seems to show definite promise, and merits further work. It does not fully
482
+ explain the presence of the experiencing subject, however. That must still be taken as a
483
+
484
+ ALEX HANKEY
485
+ 249
486
+ fundamental aspect in the universe, beyond explanation, as Chalmers (1) took pains to
487
+ emphasize.
488
+ In summary, the proposed theory seems to fit well in the following ways.
489
+ 1. Complexity seems the right place in biology to find a solution to the problems of
490
+ experience and subjective intelligence, as the most complex phenomena in biology.
491
+ 2. ‘Experience’ and ‘mind’ are based at the apex of the regularity hierarchy where
492
+ self-organized criticality must operate, so criticality is the condition of choice to
493
+ analyse.
494
+ 3. In control theory, Wiener’s feedback singularity is the place where any radically
495
+ new and different property of a physical system should be located.
496
+ 4. Singularity presents an appropriate physical condition, instability, with
497
+ correspondingly different physics from stability, the condition for matter. This
498
+ confirms criticality as the condition of choice to locate mind and experience.
499
+ 5. The model presents a physics of experience distinct from the physics of matter
500
+ preserving the intuitive distinction between ‘mind’ and ‘matter’.
501
+ 6. The feedback loop integral to the new kind of information is appropriate to model
502
+ the sense of ‘self’ accompanying all experience.
503
+ 7. Criticality’s occurrence at the edge of chaos allows choices to be made, thus linking
504
+ the ‘sense of self’ to active intelligence, as is commonly experienced.
505
+ 8. The non-linear mathematics of the singularity corresponds to the essential non-
506
+ linearity implied by the experiencing subject’s awareness of ‘self’. The essence of
507
+ subjectivity would seem to be ‘non-linearity’, a condition that should probably be
508
+ added to Chalmers’s list of the properties of experience.
509
+ 9. A system that is essentially non-linear cannot be represented by linear models. The
510
+ mathematically singular feedback loop at critical instability is appropriate to do so.
511
+ 10. Mathematical singularities at critical feedback instabilities at the apex of
512
+ complexity-based biological regulatory systems are therefore appropriate
513
+ mathematical, physical and biological conditions to model subjective experience.
514
+ ACKNOWLEDGEMENTS
515
+ I would like to acknowledge many conversations over the years with Jon Shear, Brian
516
+ Josephson, Madan Thangavelu, Judu Ilavarasu and John Hagelin, exceptionally
517
+ helpful inputs from Neil Hammeroff and Walter Freeman, and consultations with
518
+ ECG Sudarshan and Steven Weinberg to all of whom I am grateful for providing a
519
+ sounding board for my ideas.
520
+
521
+
522
+
523
+ COSMOS AND HISTORY
524
+ 250
525
+ REFERENCES
526
+ 1. Penrose R. The Emperor’s New Mind: concerning computers, minds and the laws of physics.
527
+ Oxford University Press, Oxford, 1999.
528
+ 2. Chalmers D. Facing up to the Problem of Consciousness. J. Consc. Studies, 1995;
529
+ 2(3):200-209.
530
+ 3. Chalmers D. The Conscious Mind. Oxford University Press, Oxford, 1997.
531
+ 4. Shear J. (Ed.) Explaining Consciousness the Hard Problem. Academic Press, London,
532
+ 1997.
533
+ 5. Penrose R. Hameroff N. Reply to criticism of the ‘Orch OR qubit’ –
534
+ ‘Orchestrated objective reduction’ is scientifically justified. Physics of Life Reviews,
535
+ Volume 11, Issue 1, March 2014; 11(1): 104-112.
536
+ 6. Eliot T.S. Burnt Norton in Four Quartets. Harcourt Books, New York, NY, 1971.
537
+ 7. Goswami A. Reed R.E. and Goswami M. The Self Aware Universe. Penguin Putnam,
538
+ New York,1995.
539
+ 8. Wiener N. Cybernetics of control and communication in the animal and the machine. M.I.T.
540
+ Press, 1948.
541
+ 9. Ho M-W. The Rainbow and the Worm: The Physics of Organisms. World Sientific,
542
+ Singapore, 2008.
543
+ 10. Yogi MM The Science of Being and Art of Living. Penguin, New York, 2001.
544
+ 11. Penrose R. Shadows of the Mind, Oxford University Press, Oxford, 1994.
545
+ 12. Domash L. Physics of Coherent States. MIU Press, Rheinweiler, 1975.
546
+ 13. Kant I. The Critique of Pure Reason. (Pluhar W.S. (trans), Hackett, 1996.
547
+ 14. Hankey A. Stanley H.E. Chang T.S. Geometric Predictions of Scaling at
548
+ Tricritical Points. Phys Rev. Lets. 29(5); 278-281. (1972).
549
+ 15. Chang T.S. Hankey A. Stanley H.E. Generalized Scaling Hypothesis in
550
+ Multicomponent Systems. I. Classification of Critical Points by Order and Scaling
551
+ at Tricritical Points. Phys. Rev. B 8, 346–364 (1973). DOI: 10.1103/PhysRevB.8.346.
552
+ 16. Hankey A. Chang T.S. Stanley H.E. Generalized Scaling Hypothesis in
553
+ Multicomponent Systems. II. Scaling Hyßpothesis at Critical Points of Arbitrary
554
+ Order. Phys. Rev. B 8, 1178–1184 (1973).
555
+ 17. Kauffman S. At Home in the Universe. The search for the laws self organization and
556
+ complexity. Oxford University Press, Oxford, 1995.
557
+ 18. Hankey A. Establishing the Scientific Validity of Tridosha part 1: Doshas,
558
+ Subdoshas and Dosha Prakritis. Anc Sci Life. 2010 Jan-Mar; 29(3): 6–18.
559
+ 19. Freeman W.
560
+ 20. Sheldrake R. Dogs that Know when their Masters are Coming Home. Three Rivers Press,
561
+ 1999.
562
+ 21. Sheldrake R. The Sense of Being Stared At. Arrow Books, London, 2004.
subfolder_0/Cross-Cultural Study on the Effects of 10 Days of Online Mind Sound Resonance Technique (Msrt) on State Anxiety, Stress, Quality of Sleep, and Mindfulness.txt ADDED
@@ -0,0 +1,357 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Research Article
2
+ Cross-Cultural Study on the Effects of 10 Days of Online Mind Sound Resonance Technique
3
+ (Msrt) on State Anxiety, Stress, Quality of Sleep, and Mindfulness
4
+ 1
5
+ Abstract
6
+ Objectives: The purpose of this pilot randomized control trial study was to understand the effects of a 10-
7
+ day online intervention of a yoga and chanting-based relaxation technique called Mind Sound Resonance
8
+ Technique (MSRT) on measures of anxiety, stress, sleep, and mindfulness. This study was conducted in
9
+ parallel within the United States and India. Two-hundred and ten participants were recruited for this
10
+ pilot study, fifty participants from India and one-hundred and sixty participants from the United States.
11
+ Participants were initially administered a series of questionnaires to assess measures of state anxiety, stress,
12
+ quality of sleep, and mindfulness. Each day, participants received a link at 9 AM local time containing
13
+ the practice video of MSRT. Upon completion of the 10-day intervention, participants were administered
14
+ the same series of questionnaires to assess any changes in the previously mentioned measures. Sixty-five
15
+ participants completed all portions of the study and were compensated. Data analysis was conducted,
16
+ showing no statistically significant differences after the intervention, including cross-cultural differences.
17
+ However, several sleep related questions showed statistically significant improvements in certain aspects
18
+ of sleep such as restfulness and an improvement in insomnia. Several confounding factors could have
19
+ contributed to the lack of statistically significant results. The findings of this pilot study suggest that further
20
+ refined research within the effectiveness of an online Mind Sound Resonance Technique intervention -
21
+ specifically on various aspects of sleep such as insomnia and quality of sleep - should be designed and
22
+ implemented. ASEAN Journal of Psychiatry, Vol. 22 (1): January – February 2021: 01 04
23
+ Keywords: Mind Sound Resonance Technique (Msrt), Anxiety, Sleep, Mindfulnes
24
+ Introduction
25
+ Stress has become an increasingly prevalent issue in
26
+ the modern world. Starting from early ages, chron-
27
+ ic stress levels among populations across the world
28
+ have been increasing. This includes populations as
29
+ young as undergraduates [1]. As a result of chronic
30
+ stress, several health problems tend to arise, such as
31
+ a weaker memory, worsened cognition and learning
32
+ abilities, weaker immune function, cardiovascular
33
+ disease, gastrointestinal complications, and endo-
34
+ crine problems [2]. Along with stress, anxiety, sleep
35
+ deprivation, and insomnia are becoming more and
36
+ more prevalent [3].
37
+ Previous studies have shown that yoga interventions
38
+ can have significant positive effects on psychologi-
39
+ cal measures such as stress, mindfulness, quality of
40
+ life, quality of sleep, and compassion, among vari-
41
+ ous other variables [4]. A 9-day yoga intervention
42
+ can improve vigilance, self-rated sleep, state anxiety,
43
+ and self-rated sleep within military personnel [5].
44
+ Long-term yoga interventions showed improvements
45
+ in symptoms of anxiety, stress, and depression in
46
+ patients with clinical depression [6]. Mindfulness-
47
+ based yoga practices are shown to improve quality
48
+ of sleep [7].
49
+ Mind Sound Resonance Technique (MSRT) is a spe-
50
+ cific mindfulness-based yoga practice focused on
51
+ calming the mind-body complex. Previous literature
52
+ has shown that MSRT has immediate effects on state
53
+ anxiety and cognitive functions within people suffer-
54
+ ing from generalized anxiety disorder [8]. In addi-
55
+ tion, long-term interventions of MSRT have shown
56
+ a reduction in the levels of stress, anxiety, fatigue,
57
+ and psychological distress [9]. Single-session inter-
58
+
59
+ Chinmay Surpur, Elliott Ihm, Jonathan Schooler, H. R. Nagarathna, Judu Ilavarasu
60
+
61
+ Yoga Bharati, University of California, Santa Barbara, SVYASA University, United States
62
+ Cross-Cultural Study on the Effects of 10 Days of Online
63
+ Mind Sound Resonance Technique (Msrt) on State
64
+ Anxiety, Stress, Quality of Sleep, and Mindfulness
65
+ 4
66
+ 4
67
+ October-November
68
+ ASEAN Journal of Psychiatry, Vol. 22 (S1),
69
+ 2021: 01-0
70
+ Cross-Cultural Study on the Effects of 10 Days of Online Mind Sound Resonance Technique
71
+ (Msrt) on State Anxiety, Stress, Quality of Sleep, and Mindfulness
72
+ ASEAN Journal of Psychiatry, Vol. 22 (1), January - February 2021: 01-0
73
+ 2
74
+ ventions of MSRT administered to medical students,
75
+ a population group known to have higher stress lev-
76
+ els than the average person, showed improvements
77
+ in cognitive performance immediately after the in-
78
+ tervention [10]. MSRT also has a direct impact on
79
+ stress by reducing sympathetic nervous activity and
80
+ increasing vagal dominance [11]. Finally, a study
81
+ done by Sharma et al. showed that a week-long inter-
82
+ vention of MSRT added on to regular yoga practice
83
+ enhances sleep quality and reduces stress, pain and
84
+ anxiety levels in patients suffering from chronic mus-
85
+ culoskeletal pain [12].
86
+ The purpose of this study was to understand the ef-
87
+ fects of a 10-day online intervention of MSRT and its
88
+ effects on perceived stress, state anxiety, quality of
89
+ sleep, and mindfulness scores. In addition, the relative
90
+ effects of MSRT on the previously stated measures
91
+ in spiritually and/or religiously inclined individuals
92
+ versus those who are not inclined to spirituality and
93
+ religion were studied. An online intervention was
94
+ chosen because the efficacy of an online yoga inter-
95
+ vention has been shown by previous literature, where
96
+ the effects of Sukshma Vyayama, a yoga practice,
97
+ was administered to women with breast cancer and
98
+ results showed that AI-induced pain was significantly
99
+ reduced [13].
100
+ The study was administered to participants between
101
+ the ages of 18-50 in the United States as well as in
102
+ India to understand the cross-cultural differences on
103
+ the proposed measures. This intervention was admin-
104
+ istered via a pre-recorded video link on YouTube, us-
105
+ ing the Qualtrics platform, between 6-10 PM local
106
+ time. Perceived stress, state anxiety, quality of sleep,
107
+ and mindfulness assessments were administered 24
108
+ hours prior to the 10-day intervention as well as 24
109
+ hours after the last practice session of the interven-
110
+ tion. Data was also collected about each participant’s
111
+ level of spirituality, prior history with religion and
112
+ meditation or yoga practice, and quality of life. Our
113
+ hypothesis was that MSRT, consistently practiced for
114
+ 10 days, would reduce state anxiety, levels of stress,
115
+ increase quality of sleep, and scores regarding mind-
116
+ fulness. We also hypothesized that the magnitude of
117
+ the effects of MSRT on the measures
118
+ studied will be greater in spiritually and/or religious-
119
+ ly inclined individuals [14].
120
+ Methods
121
+ UC Santa Barbara’s research pool as well as Yoga
122
+ Bharati’s outreach efforts via digital marketing were
123
+ used to recruit participants. One-hundred and eighty
124
+ participants within the age range of 18-70 years old
125
+ applied for the online research study. 130 partici-
126
+ pants were recruited within the United States and
127
+ 50 participants were recruited within India. The se-
128
+ lection criteria for participants included individuals
129
+ who perceive an experience of high levels of stress.
130
+ Both genders were equally considered for the study.
131
+ Informed consent was obtained. Exclusion criteria
132
+ contained anyone on any medications for chronic
133
+ illnesses, anyone on tranquilizers, anyone who gets
134
+ good sleep, and anyone who have been doing MSRT,
135
+ any yoga, or any relaxation or mindfulness practice
136
+ in the last three months.
137
+ MSRT Steps
138
+ Participants listen to the peace chant (Maha mrutyun-
139
+ jaya mantra) once. Participants then make a positive
140
+ affirmation (sankalpa) such as “I’m full of love”,
141
+ “I’m full of forgiveness”, “I’m free of anger”, etc.
142
+
143
+ Participants chant the syllables “A” “U” “M” and
144
+ “AUM” 4 times out loud (ahata).
145
+
146
+ Participants chant the syllables within their mind,
147
+ not out loud (anahata).
148
+
149
+ Participants listen to the peace chant (Maha mru-
150
+ tyunjaya mantra) 3 times.
151
+
152
+ Participants then spend time in silence and are
153
+ encouraged to recollect the sound
154
+
155
+ of “om” nine times within their mind (anahata).
156
+
157
+ After nine times of “om” within their minds, par-
158
+ ticipants are encouraged to stay in
159
+
160
+ silence.
161
+
162
+ Within this silence, participants recollect their
163
+ positive affirmation (sankalpa) nine times.
164
+ Prior to administering the intervention, participants
165
+ were given a pre-assessment which contained ques-
166
+ tions about their spiritual/religious background and
167
+ rate of practice, questions about their personal life,
168
+ and general background information, using qualtrics
169
+ as the data-collection platform. A pre-test containing
170
+ the Perceived Stress Scale (Cohen, 1983), Spielberg-
171
+ er’s State-Anxiety Inventory (STAI), Sleep Rating
172
+ 4
173
+ Cross-Cultural Study on the Effects of 10 Days of Online Mind Sound Resonance Technique
174
+ (Msrt) on State Anxiety, Stress, Quality of Sleep, and Mindfulness
175
+ ASEAN Journal of Psychiatry, Vol. 22 (1), January - February 2021: 01-0
176
+ 3
177
+ Questionnaire (SRQ), and The Five Facet Mind-
178
+ fulness Questionnaire (FFMQ) was administered
179
+ 24-hours prior to the start of the intervention.
180
+ The practice was sent to participants each morning
181
+ at 9 AM local time and were encouraged to practice
182
+ MSRT following the pre-recorded video link upload-
183
+ ed on YouTube and hosted on Qualtrics between 6
184
+ PM - 10 PM each day. After the last session, partici-
185
+ pants completed a post-test to assess any changes in
186
+ measures of perceived stress, state anxiety, quality of
187
+ sleep, and mindfulness.
188
+ Results
189
+ Out of 130 participants, 65 participants completed
190
+ the study. Upon applying the exclusion criteria, 47
191
+ participants’ (10 men and 37 women) data was used
192
+ for statistical analysis. The mean age of participants
193
+ was 43.07 years old.
194
+ For the statistical analysis of the pre- and post-data
195
+ SPSS and Excel was used. Both UC Santa Barbara’s
196
+ team and Yoga Bharati’s team completed the statisti-
197
+ cal analysis for the data collected both in the United
198
+ States and in India. This paper was written jointly
199
+ by UC Santa Barbara’s team and Yoga Bharati’s re-
200
+ search team.
201
+ Initial results showed no statistically significant dif-
202
+ ference in any of the questionnaires as a whole. How-
203
+ ever, within the Karolinska Sleep Questionnaire, four
204
+ specific questions showed a significant improvement:
205
+
206
+ Difficulties falling asleep (M = 2.089, SD = 1.42;
207
+ t(44) = 3.0, p = 0.004).
208
+
209
+ Insufficient amount of sleep (M = 2.178, SD =
210
+ 0.1.29; t(44) = 2.0, p = 0.05)
211
+
212
+ Feeling exhausted when waking up (M = 1.689,
213
+ SD = 1.39; t(44) = 2.8, p = 0.008)
214
+
215
+ Sleepiness during work (M = 1.33, SD = 1.10;
216
+ t(44) = 2.8, p = 0.008)
217
+ Although the results did not show statistical signifi-
218
+ cance, the testimonials go to show that MSRT was
219
+ clearly a relaxing experience for the participants.
220
+ Among people who said MSRT was relaxing experi-
221
+ ence, they also commented saying “their awareness
222
+ improved”, “I was able to understand myself better”,
223
+ “I was afraid of quietude and now I began liking qui-
224
+ etness”, “I experienced high vibrations in the body”.
225
+ Among people who said MSRT was a relaxing expe-
226
+ rience, they commented- “I am more aware”, “I was
227
+ able to understand myself better”, “I was afraid of
228
+ quietude and now I began liking quietness”, “I expe-
229
+ rienced high vibrations in the body” and “my sleep
230
+ quota reduced and relaxed”, “This intervention def-
231
+ initely helped me learn how to calm my mind and
232
+ body at least to some extent every day. I noticed that
233
+ the relaxation we so strive for can become a habit.
234
+ This experience will definitely inform my yoga/med-
235
+ itation pursuits in the future”.
236
+ Discussion
237
+ The KSQ showed that there are some questions which
238
+ showed related statistically significant improvements
239
+ in aspect of sleep. In addition, the testimonials pro-
240
+ vided by the participants were overwhelmingly posi-
241
+ tive. Further studies must be done to remove some of
242
+ the discovered confounds. There is promising future
243
+ research studying specifically on various aspects of
244
+ sleep alone, rather than including anxiety, stress, and
245
+ mindfulness as well to create a more pointed study on
246
+ the effects of Mind Sound Resonance technique on
247
+ sleep. There were some issues with the study which
248
+ can be addressed in a subsequent research project.
249
+ The researchers could not ensure that the participants
250
+ practiced daily. The researchers were unable to ensure
251
+ that participants actually followed along with all as-
252
+ pects of the intervention. Feedback from participants
253
+ indicated that several questions used in the ques-
254
+ tionnaires were misunderstood due to the confusing
255
+ nature of the questions. Besides from the pitfalls of
256
+ the study, some suggestions for a future study could
257
+ help in strengthening the study itself. Implementing
258
+ a 6-week intervention rather than 10-day intervention
259
+ could have a more significant impact on participants.
260
+ It is also important to have a large subject pool when
261
+ conducting research online.
262
+ Conclusion
263
+ While none of the results showed statistically sig-
264
+ nificant improvements in mindfulness, anxiety, and
265
+ mindfulness, there was an improvement in some
266
+ sleep-related questions. There is promising future
267
+ research studying specifically on various aspects of
268
+ 4
269
+ Cross-Cultural Study on the Effects of 10 Days of Online Mind Sound Resonance Technique
270
+ (Msrt) on State Anxiety, Stress, Quality of Sleep, and Mindfulness
271
+ ASEAN Journal of Psychiatry, Vol. 22 (1), January - February 2021: 01-0
272
+ 4
273
+ sleep alone, rather than including anxiety, stress, and
274
+ mindfulness as well to create a more pointed study
275
+ on the effects of Mind Sound Resonance technique
276
+ on sleep.
277
+ Acknowledgements
278
+ Yoga Bharati would like to acknowledge SVYASA
279
+ University, and specifically Dr. H.R. Nagarathna, for
280
+ their support in constructing this pilot study.
281
+ References
282
+ 1. Ribeiro ÍJS, Pereira R, Freire IV, Oliveira BG
283
+ de, Casotti CA, et al. Stress and Quality of Life
284
+ Among University Students: A Systematic Lit-
285
+ erature Review. Health Professions Education.
286
+ 2017;4: 70-77.
287
+ 2. Yaribeygi H, Panahi Y, Sahraei H, Johnston TP,
288
+ Sahebkar A. The impact of stress on body func-
289
+ tion: A review. Experimental and Clinical Sci-
290
+ ences Journal. 2017;16: 1057-1072.
291
+ 3. Staner L. Sleep and anxiety disorders. Dialogues
292
+ in Clinical Neuroscience. 2003;5: 249-258.
293
+ 4. Trent NL, Borden S, Miraglia M, Pasalis E,
294
+ Dusek JA, et al. Improvements in Psychological
295
+ and Occupational Well-being Following a Brief
296
+ Yoga-Based Program for Education Profession-
297
+ als. Global Advances in Health and Medicine
298
+ 2019.
299
+ 5. Telles S, Gupta RK, Verma S, Kala N, Balkrishna
300
+ A. Changes in vigilance, self rated sleep and state
301
+ anxiety in military personnel in India following
302
+ yoga. BMC Research Notes 2018;11: 518.
303
+ 6. Shohani M, Badfar G, Nasirkandy MP, Kaikha-
304
+ vani S, Rahmati S, et al. The Effect of Yoga on
305
+ Stress, Anxiety, and Depression in Women. Inter-
306
+ national Journal of Preventive Medicine 2018;9:
307
+ 2.
308
+ 7. Winbush NY, Gross CR, Kreitzer MJ. The Effects
309
+ of Mindfulness-Based Stress Reduction on Sleep
310
+ Disturbance: A Systematic Review. EXPLORE
311
+ 2007;3: 585-591.
312
+ 8. Dhansoia V, Bhargav H, Metri K. Immediate ef-
313
+ fect of mind sound resonance technique on state
314
+ anxiety and cognitive functions in patients suf-
315
+ fering from generalized anxiety disorder: A self-
316
+ controlled pilot study. International Journal of
317
+ Yoga 2015;8: 70-73.
318
+ 9. Rao M, Metri KG, Raghuram N, Hongasandra
319
+ NR. Effects of Mind Sound Resonance Technique
320
+ (Yogic Relaxation) on Psychological States,
321
+ Sleep Quality, and Cognitive Functions in Fe-
322
+ male Teachers: A Randomized, Controlled Trial.
323
+ Advances in Mind-Body Medicine 2017;31: 4-9.
324
+ 10. Saoji A, Mohanty S, Vinchurkar SA. Effect of a
325
+ Single Session of a Yogic Meditation Technique
326
+ on Cognitive Performance in Medical Students:
327
+ A Randomized Crossover Trial. Journal of Reli-
328
+ gion and Health. 2017;56: 141-148.
329
+ 11. Nikkam VA, Shetty S, Shetty P. Effect of mind
330
+ sound resonance technique on autonomic vari-
331
+ ables in occupational stress individuals- a ran-
332
+ domized controlled trial. Journal of Emerging
333
+ Technologies and Innovative Research. 2018;5.
334
+ 12. Sharma D, Bhargav H. Effect of Mind Sound
335
+ Resonance Technique as an add on to Yoga ther-
336
+ apy on Quality of sleep, Pain, Stress and State
337
+ Anxiety levels in patients suffering from Chronic
338
+ Musculoskeletal Pain: Matched Controlled Trial.
339
+ International Journal of Review in Life Sciences.
340
+ 2014;6.
341
+ 13. Leibel LL, Metri KG, Prasad R, Mears JG. The
342
+ effect of sukshma vyayama joint loosening yoga
343
+ on aromatase inhibitor-induced arthralgia (AI) in
344
+ breast cancer patients: A feasibility study con-
345
+ ducted on Facebook. Journal of Clinical Oncol-
346
+ ogy. 2019;37.
347
+ 14. Cohen S. Perceived Stress Scale.1983.
348
+ Correspondence author: Chinmay Surpur, Yoga Bharati, University of California, Santa Barbara, SVYASA University, United
349
+ States
350
351
+ Received: 22 2021
352
+ 4
353
+ October
354
+ Accepted:
355
+ 2021
356
+ November
357
+ 25
subfolder_0/Development and Validation of Integrated Yoga Module for Obesity in Adolescents.txt ADDED
@@ -0,0 +1,434 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Int J Yoga. 2018 Sep-Dec; 11(3): 231–238.
2
+ doi: 10.4103/ijoy.IJOY_38_17
3
+ PMCID: PMC6134747
4
+ PMID: 30233117
5
+ Development and Validation of Integrated Yoga Module for Obesity in
6
+ Adolescents
7
+ Sunanada Surendra Rathi, Nagarathna Raghuaram, Padmini Tekur, Ruchira Rupesh Joshi, and
8
+ Nagendra Hongasandra Ramarao
9
+ Yoga and Life Sciences Department, SVYASA, Bengaluru, Karnataka, India
10
+ Address for correspondence: Dr. Sunanada Surendra Rathi, Yoga Initiative Centre, Chiranjiv Foundation,
11
+ 404, Pinnacle Pride, Sadashiv Peth, Tilak Road, Pune - 411 030, Maharashtra, India. E-mail:
12
13
+ Received 2017 Jul; Accepted 2017 Sep.
14
+ Copyright : © 2018 International Journal of Yoga
15
+ This is an open access journal, and articles are distributed under the terms of the Creative Commons
16
+ Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the
17
+ work non-commercially, as long as appropriate credit is given and the new creations are licensed under the
18
+ identical terms.
19
+ Abstract
20
+ Background:
21
+ Obesity is a growing global epidemic and cause of noncommunicable diseases. Yoga is one of the
22
+ effective ways to reduce stress which is one of the causes of obesity. Nowadays, children in adolescent
23
+ age are more prone to get obese due to lack of physical activity making them more sedentary.
24
+ Aim:
25
+ To identify the design and validation of Integrated Approach of Yoga Therapy Module (IAYTM) for
26
+ obesity in adolescents. Materials and Methods: First phase – IAYTM for obesity was designed based on
27
+ the literature review of classical texts and recently published research articles. Second phase –
28
+ Designed IAYTM was validated by 16 subject matter (yoga) experts. Content-validity ratio (CVR) was
29
+ analyzed using Lawshe's formula.
30
+ Results:
31
+ Yoga practices were designed for Integrated Yoga Module for Obesity in Adolescents. Yoga practices
32
+ with CVR ≥0.5 and which were validated by 16 yoga experts and approved in faculty group discussion
33
+ were included in final Integrated Yoga Therapy Module.
34
+ Conclusion:
35
+ The yoga practices were designed and validated for IAYTM for obesity in adolescents.
36
+ Keywords: Adolescence, integrated approach of yoga therapy, obesity, validation
37
+ Introduction
38
+ Obesity
39
+ 2
40
+ Obesity (body mass index [BMI] >30 kg/m ) is more common in women than men. The risk of obesity
41
+ starts at a BMI of 25 kg/m
42
+ and it is much lower (23 kg/m ) in southeastern countries that contain
43
+ genetic predisposition to metabolic disorders. East Asian countries use lower values of BMI.[ ] Obesity
44
+ increases the likelihood of diseases such as heart disease, type 2 diabetes, obstructive sleep apnea,
45
+ cancer, and osteoarthritis.[ ] Researchers consider obesity as one of the most serious public health
46
+ problems of the 21 century.[ ] International organizations such as the WHO, UNICEF, and CARE
47
+ consider obesity as one of the most neglected public health problems in the society.[ ] It is commonly
48
+ caused by a combination of excessive food intake, lack of physical activity, and genetic susceptibility.
49
+ [ ] Therefore, it can be prevented through a combination of social changes and personal choices.
50
+ Adolescent obesity
51
+ The prevalence of overweight and obesity in children has dramatically increased over the past two
52
+ decades.[ ] In 2010, 43 million children were obese and this number is expected to reach 60 million by
53
+ 2020. Of the approximately 45 million, 35 million live in the developing countries. Obese children are
54
+ likely to remain so in adulthood and are at greater risk of developing noncommunicable diseases such
55
+ as diabetes, hypertension, cardiovascular diseases, and cancers.[ ] Two systematic review articles[ ]
56
+ and one clinical review article[
57
+ ] suggest that yoga has beneficial effects on mental and physical
58
+ health in children and adolescents.
59
+ Yoga modules to control obesity
60
+ Yoga has emerged as one of the evidence-based practices widely used across the globe. Over 10 million
61
+ Americans practice yoga for health reasons in 2002 and the number has increased to 13 million in
62
+ 2007.[
63
+ ] Several schools of yoga have come up different modules of yoga practices that have
64
+ shown a range of positive benefits on BMI in adults and children. A randomized controlled trial on 72
65
+ obese adult males resulted in improvement in BMI, hip circumference, waist circumference, and skin-
66
+ fold thickness. Fourteen weeks of integrated yoga-based lifestyle change included yogic diet, asana,
67
+ pranayama, relaxation techniques, meditation, and yogic counseling.[
68
+ ] Yoga/meditation users with
69
+ normal BMI appeared to be more satisfied with their body weight and shape than nonyoga/meditation
70
+ users.[
71
+ ] Studies provide strong evidence that the modified Qigong breathing exercise can
72
+ significantly reduce or even suppress the sense of hunger on an empty stomach. Qigong practice
73
+ typically involves moving meditation, coordinating slow flowing movement, deep rhythmic breathing,
74
+ and calm meditative state of mind. Qigong is now practiced throughout China and worldwide for
75
+ recreation, exercise and relaxation, preventive medicine and self-healing, alternative medicine, and
76
+ cultivation. Stomach pH was increased by 3 and intestinal pressure was reduced by 12 mmHg in the
77
+ experimental group and did not change significantly in the control group. The breathing exercise
78
+ provides comfort in different circumstances, such as lack of regular meals, limited volume or caloric
79
+ diet, and even during temporary complete absence of food in therapeutic fasting which is useful in
80
+ obesity.[
81
+ ]
82
+ In a randomized controlled trial on yoga practice for reducing the male obesity and weight-related
83
+ psychological difficulties, it has been proved that the yoga practice is effective for obesity control for
84
+ adult male in an urban setting. Improvement in anthropometric and psychological parameters was
85
+ observed in that study.[
86
+ ] The 12-week yoga intervention had positive effects on anthropometric and
87
+ self-reported variables in women with abdominal obesity. Sixty women with abdominal obesity (waist
88
+ circumference ≥88 cm; BMI ≥25) were randomly allocated in a 2:1 ratio to either yoga intervention (n
89
+ = 40) or a waiting list (n = 20). Intergroup significant differences in the waist/hip ratio, body weight,
90
+ BMI, body fat percentage, body muscle mass percentage, mental and physical well-being, self-esteem,
91
+ subjective stress, body awareness, and trust in bodily sensations were observed.[
92
+ ]
93
+ Mindfulness-based interventions may be both physically and psychologically beneficial for adults who
94
+ are either overweight or obese. Fifteen studies measuring posttreatment outcomes of mindfulness-based
95
+ interventions in 560 individuals were identified in an review article.[
96
+ ] Average weight loss was 4.2
97
+ kg. Overall effects were large for improving eating behaviors, medium for depression, anxiety, and
98
+ eating attitudes, and small for BMI and metacognition outcomes. Therapeutic effects for BMI, anxiety,
99
+ 2
100
+ 21
101
+ 2
102
+ 2
103
+ 3
104
+ st
105
+ 4
106
+ 5
107
+ 6
108
+ 7
109
+ 8
110
+ 9
111
+ 11
112
+ 12,13
113
+ 14
114
+ 15
115
+ 16
116
+ 17
117
+ 18
118
+ 19
119
+ eating attitudes, and eating behaviors remained significant. Another RCT study of a 12-month
120
+ computerized mindfulness-based intervention for obese patients with binge eating disorder support that
121
+ mindfulness work as de-automation element and a moderator of motivation to exercise which can lead
122
+ to the reduction of impulsive eating and also to an increase in levels of physical activity.[
123
+ ]
124
+ Few studies has been conducted on quality of life for the obese people. A short-term yoga-based
125
+ lifestyle intervention study, including asana, pranayama, relaxation techniques, lectures, group support,
126
+ nutrition awareness program, and individualized advice, had positive effect on the overall health the
127
+ obese people.[
128
+ ]
129
+ These studies have designed and used different yoga modules for obesity. However, there is no
130
+ validated yoga module for obesity in adolescents. Therefore, this study has been designed to propose a
131
+ validated yoga module for obesity in adolescent with practices of breathing and loosening, asana,
132
+ pranayama, and relaxation techniques.
133
+ Yoga is a voluntary and mindful technique that has positive impact on obesity at physical and
134
+ psychological levels. Yoga has effect on serum leptin and serum ghrelin; there two hormones have been
135
+ recognized to harbor major influence on the energy balance mechanism. Leptin is a mediator of long-
136
+ term regulation of energy balance, suppressing food intake and thereby inducing weight loss.[
137
+ ] A
138
+ study states that voluntary exercise leads to the maintenance of a lower body weight and leaner
139
+ composition, as well as to improved leptin action, independent of fat mass.[
140
+ ] Moderated meditation
141
+ analyses showed that higher levels of mindfulness were associated with better-perceived quality of life
142
+ through lower body shame.[
143
+ ] Similar effect on serum leptin by yoga is expected as yoga is a
144
+ voluntary and mindful technique to get control over mind and body.
145
+ Yoga in adolescence
146
+ Studies suggest that school-based yoga may provide unique benefits beyond participation in physical
147
+ practice of yoga under expert supervision was helpful in achieving optimum level of self-adjustment in
148
+ adolescent students.[
149
+ ] However, to the best of our knowledge, there are no studies on the effect of
150
+ yoga on obesity in adolescence. Hence, this study was designed to provide Integrated Approach of
151
+ Yoga Therapy module (IAYTM) for obesity in adolescents.
152
+ Validation
153
+ Validation using content–validity ratio (CVR) developed by Lawson is a tool to check product, service,
154
+ or system meets requirements and specifications fulfilling its intended purposes.[
155
+ ] As there are many
156
+ different modules of yoga for obesity used by different investigators from different parts of the globe, it
157
+ was felt that there is a need to have a validated common protocol for obesity which we plan to use in a
158
+ study on yoga for obesity in adolescents. Hence, the present study for validation was planned and
159
+ implemented.
160
+ Materials and Methods
161
+ The designing, validation, and feasibility of Integrated Yoga Therapy Module (IYTM) for obesity [
162
+ Figure 1] were carried out in the following steps:
163
+ 20
164
+ 21
165
+ 22
166
+ 23
167
+ 24
168
+ 25,26
169
+ 27
170
+ Figure 1
171
+ Flowchart of steps in the development for obesity in adolescents
172
+ Step 1: The need of the adolescents with obesity were enlisted [Table 1].
173
+ Table 1
174
+ Need of adolescents with obesity
175
+ Step 2: The basis of integrated approach to yoga therapy to achieve these goals was understood by
176
+ studying several yoga texts by the researcher under the guidance of senior yoga masters. This was
177
+ complemented by the present day scientific understanding that obesity is not only a physical problem
178
+ but has also deep roots in the mind and emotions. Abdominal obesity has been suggested to be
179
+ associated with perturbations of the regulation of the hypothalamic-pituitary-adrenal axis. In a study on
180
+ 51-year-old men (n = 284), salivary cortisol concentrations were determined on repeated occasions
181
+ over a random working day and perceived stress was reported in parallel which results that perceived
182
+ stress-dependent cortisol values were strongly related to perturbations of other endocrine axes as well
183
+ as abdominal obesity.[
184
+ ] Excessive stress affects biosynthesis of physiological processes and causes an
185
+ imbalance in cognition and emotions also which results in metabolic disorders such as obesity.[
186
+ ]
187
+ During stress corticotrophin-releasing hormone and norepinephrine are released which has impact on
188
+ hypothalamo–pitutary axis leading to behavioral and peripheral changes. This leads to release of large
189
+ quantity of glucocorticoids inhibiting action of insulin on skeletal muscles and adipose tissues which is
190
+ the cause of metabolic disorder such as obesity.[
191
+ ] This supports that mind and body has strong
192
+ interaction in pathophysiology of obesity. It proves that along with physical causes, disturbances or
193
+ problems in mind and emotions are also major contributing factors of obesity pathophysiology.
194
+ Attention bias for food could be a cognitive pathway to overeating in obesity. The study results
195
+ demonstrate that state differences in health versus palatability mind-sets can cause attenuated attention
196
+ bias for high-calorie food cues in participants with higher eating restraint which can cause bias
197
+ attention for food.[
198
+ ]
199
+ The concept of how obesity as a mind–body problem occurs was formulated based on the descriptions
200
+ of five aspects of human existence (Pancha Kosha Viveka)[
201
+ ] and the downward causation of stress-
202
+ induced diseases (Adhija Vyadhi). It states that human being exists at five different layers of existence
203
+ (Annamaya – body, Pranamaya – vital energy, Manomaya – mind, and Vijnaanamaya – intellect, and
204
+ Anandamaya Kosha – soul) which are interconnected and has counterimpact on each other also. Stress
205
+ at mind disturbs Prana and results in abnormalities at body level called disease. Obesity also has root
206
+ 28
207
+ 29
208
+ 30
209
+ 31
210
+ 32
211
+ cause as mental stress along with other physical causes. Hence, treatment of obesity includes working
212
+ on all Koshas (body, mind, Prana, and intellect). IAYTM for obesity in adolescents also is designed on
213
+ the basis of Pancha Kosha model.
214
+ We then went on to compile the corrective techniques described in many texts (Patanjali yoga sutra,
215
+ Hath Yoga Pradipika, Hatharatnavali, Bhagavad Gita) which offer a reversibility model. Thus, a need-
216
+ based table of practices for long-term holistic change at all the five aspects of personality[
217
+ ] was
218
+ prepared. Publications (books and published articles) on yoga for obesity were also reviewed to prepare
219
+ the list of all practices used in all these studies This yielded forty practice items that are tabulated in
220
+ Table 2.
221
+ Table 2
222
+ Basis for development of module
223
+ Step 3: Validation of the module for obesity: Validation of the 40-item module was carried out by
224
+ arranging a focused group discussion faculty group discussion (FGD) by inviting sixteen subject matter
225
+ expert (SMEs), that included five Doctor of Medicine in Yoga, eight Doctorates (PhD) in Yoga with
226
+ minimum experience of 4–5 years in the field of yoga, and three yoga therapists (MSc in yoga)
227
+ involved continuously for >7 years in teaching the IAYT techniques to obese participants of all ages.
228
+ These 16 SMEs marked the content validity on a three (0–2)-point scale, viz., not necessary – 0, useful
229
+ but not essential – 1, and essential – 2. After validation, data were analyzed using Lawshe's CVR.[
230
+ ]
231
+ Statistical analysis
232
+ 33,34
233
+ 35
234
+ Sixteen SMEs validated all the 40 practices. Lawshe's CVR was calculated for all the 40 items using
235
+ the formula CVR = (n − N/2)/(N/2),[
236
+ ] wherein n = number of SME panelists indicating “essential”
237
+ and N = total number of SME panelists. As per Lawshe's significance table, the value of CVR for 16
238
+ SMEs = 0.5 which means all items with CVR >0.5 are valid and essential for the module.
239
+ Results
240
+ Step 1: We presented the list of the needs of adolescents with obesity to FGD; the final
241
+ comprehensive list of 11 items evolved is tabulated in Table 1
242
+ Step 2: Table 2 shows basis of development of the module with five yogic personality domains
243
+ and 15 categories of practices; the benefits each component would offer is also tabulated
244
+ Step 3: Table 3 shows the list of 54 items that evolved all groups of practices.
245
+ e
246
+ 36
247
+ e
248
+ Table 3
249
+ List of 54 items that evolved all groups of practices
250
+ CVR was calculated for physical and breathing practices only. Among them, 33 yoga practices [Table 4
251
+ ] with CVR ≥0.5 were included in designed IYTM. Others practices such as diet, meditation,
252
+ counseling and lectures on yoga were discussed in faculty group discussion (FGD) meeting and were
253
+ approved by all participants. Hence, those were also included in IYTM.
254
+ Table 4
255
+ IYTM practices with content validity ratio ≥0.5 and focused group discussion approved
256
+ practices
257
+ Discussion
258
+ This study developed a validated module of integrated yoga as a prelude to an RCT for obese
259
+ adolescents. The content validity was assessed in four steps. After enlisting the needs of obese
260
+ adolescents at their physical, mental, emotional, spiritual, and behavioral levels, 15 categories of yoga
261
+ practices under five domains with yogic scriptural basis (Annamaya – physical, Pranamaya – vital
262
+ energy, Manomaya – mental and emotional, Vijnanamaya – intellectual, and Anandamaya – spiritual
263
+ and behavioral) was tabulated. As a next step, 54 items of actual yoga practices were selected and
264
+ subjected to assessment by 16 subject experts in a focussed group discussion meeting. Then, the CVR
265
+ was calculated to develop the final list by retaining all those items with CVR >0.5.
266
+ Advances in technology has resulted in children spending their leisure time in television, mobiles, and
267
+ ipads resulting in sedentary lifestyle and childhood obesity since last two decades.[
268
+ ] Low levels of
269
+ physical activity are definitely promoted by an automated and automobile-oriented environment that is
270
+ 37,38
271
+ 39
272
+ conducive to sedentary lifestyle.[
273
+ ] Hence, weight management by changing sedentary lifestyle of
274
+ adolescents through yoga practices was the goal of designing IAYT module for obesity in adolescents.
275
+ Urbanization leads to consumption of huge amount of food items at home and at restaurants, plus
276
+ consumption of high-calorie food such as high-fat, low-fiber foods, and intake of sweetened beverages
277
+ that have been shown to promote obesity.[
278
+ ] Urbanization is only the external cause of overeating.
279
+ The root cause of overeating is a form of stress resulting from demanding situations in the academic
280
+ and personal lifestyle among adolescents. Regular practice of yoga, especially relaxation techniques,
281
+ reduces the risk of overeating. Meditation trains the mind to search for happiness form inside instead of
282
+ searching outwardly. It also make the mind to enjoy eating healthy food. The control over mind
283
+ decreases the cravings toward junk and fast food resulting in proper intake of high-fiber and less-fat
284
+ diet.
285
+ Yoga practices with CVR <0.5 was removed from IAYTM [Table 5]. The reason for their CVR <0.5
286
+ could be these practices are not focused and not having direct impact on adolescent obesity. The
287
+ principle of selection of yoga practices is physical exercise along with relaxation of mind. However,
288
+ few texts on Hatha yoga lay more emphasis on improving health through different yogic practices.[
289
+ ]
290
+ This module for obesity in adolescents reduces weight as it provides exercise effect to different parts of
291
+ body, especially arms, abdomen, hip, and thigh region. Muscle work out in body region reduces
292
+ adipose tissues leading to weight loss. It offers enough work out to burn excessive calories that results
293
+ in proper balance of calorie intake and energy expenditure. Yoga practices provide deep relaxation to
294
+ internal body systems which is essential to regain normal functioning of the system. Yoga also
295
+ strengthens the mind determination to adhere to healthy lifestyle.
296
+ Table 5
297
+ IYTM practices with content validity ratio <0.5
298
+ Practices of Manomaya Kosha such as Bhajans (devotional music) and lecture on Bhaktiyoga releases
299
+ stress in mind with relaxation. Practices of Vijnanamaya Kosha such as lecture on Jnana yoga and
300
+ counseling help to motivate children in right direction towards success and their goal of life by clearing
301
+ the intellectual complexes and conflicts. Activity like Karmayoga trains their mind to do work with the
302
+ sense of duty and not as the burden of life which leads to relaxed mind.
303
+ These yoga practices makes IAYTM unique from other yoga modules.
304
+ 39
305
+ 40,41
306
+ 42
307
+ Conclusion
308
+ The yoga practices for IAYTM were designed as per yoga texts and the experience of yoga
309
+ experts
310
+ The designed IAYTM was validated by 16 yoga experts by using Lawshe's content validity
311
+ formula.
312
+ Strength and limitations
313
+ This study provides a validated yoga module for obesity in adolescents. We did not conduct other
314
+ validity and reliability tests for obesity in adolescents. Furthermore, all the panelists of SMEs were
315
+ from the same school of Yoga (S-VYASA, Bangalore, Karnataka, India). Further study can be planned
316
+ with reliability test on yoga module for obesity in adolescents.
317
+ Financial support and sponsorship
318
+ Rathi foundation, Pune supported this study.
319
+ Conflicts of interest
320
+ There are no conflicts of interest.
321
+ Acknowledgment
322
+ We would like to thank Mr. Ramkumar Rathi for his support to the study.
323
+ References
324
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subfolder_0/Development and initial standardization of Ayurveda child personality inventory.txt ADDED
@@ -0,0 +1,238 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ 7/29/2016
2
+ Development and initial standardization of Ayurveda child personality inventory
3
+ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4296431/?report=printable
4
+ 1/7
5
+ J Ayurveda Integr Med. 2014 Oct­Dec; 5(4): 205–208.
6
+ doi:  10.4103/0975­9476.146562
7
+ PMCID: PMC4296431
8
+ Development and initial standardization of Ayurveda child personality inventory
9
+ S. P. Suchitra, Arati Jagan, and H. R. Nagendra
10
+ Department of Life Sciences, SVAYSA, Yoga University, Bangalore, Karnataka, India
11
+ Address for correspondence: HR Nagendra, Swami Vivekananda Yoga Anusandhana Samsthana (S­VYASA), Eknath Bhavan, No.19,
12
+ Gavipuram Circle, Kempegowda Nagar, Bangalore ­ 560 019, Karnataka, India E­mail: [email protected]
13
+ Received 2013 Oct 11; Revised 2013 Dec 18; Accepted 2013 Dec 24.
14
+ Copyright : © Journal of Ayurveda and Integrative Medicine
15
+ This is an open­access article distributed under the terms of the Creative Commons Attribution­Noncommercial­Share Alike 3.0 Unported, which
16
+ permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
17
+ Abstract
18
+ Background:
19
+ Ayurveda inventories for prakriti (constitution) have been developed and validated for adults. Children,
20
+ however, require different categories of quarter and questions, for example, to assess the intelligence, the
21
+ questions can be related to their scholastic performances.
22
+ Objective:
23
+ To develop and standardize an inventory to assess the prakriti of the children, and to compare with Child
24
+ Personality Questionnaire (CPQ).
25
+ Materials and Methods:
26
+ A 135­item Ayurveda child personality inventory (ACPI) scale was developed on the basis of translation of
27
+ Sanskrit verses describing vataja (A), pittaja (B), and kaphaja prakriti (C) characteristics and by taking the
28
+ opinions of experts (ten Ayurveda experts and three psychologists). Study was carried out in Maxwell public
29
+ school, Bangalore. The scale was administered on parents of children of the age group 6­12 years. CPQ was
30
+ administered on children of the age group 8­12 years.
31
+ Results:
32
+ The ACPI was associated with excellent internal consistency. The Cronbach's alpha for A, B, and C scales
33
+ were 0.77, 0.55, and 0.84, respectively, and the Split­half reliability scores were 0.66.0.39 and 0.84,
34
+ respectively. Factor validity coefficient scores on each items was above 0.5. Scores on vataja, pittaja and
35
+ kaphaja scales were inversely correlated. Items of V, P, and K scales showed significant correlation (values
36
+ ranging from 0.39 to 0.84) with subscales of CPQ, which indicates that Eastern and Western psychology
37
+ concept have good correspondence.
38
+ Conclusions:
39
+ The prakrti of the children can be measured consistently by this instrument. Scores on V and P scale showed
40
+ good correlation with the anxiety primary scale of CPQ.
41
+ Keywords: Prakriti, vata, pitta, kapha, tridosha
42
+ INTRODUCTION
43
+ Ayurveda, the ancient life science, is an aspect of Vedic lore most closely connected to Rigveda and
44
+ Atharvaveda. It is centered on the principles of Panchamahabhuta (space, air, fire, water, and earth) and
45
+ tridosha­vata, pitta, and kapha. Tridosha are the metabolic principles (maintains all the functions in the body
46
+ 7/29/2016
47
+ Development and initial standardization of Ayurveda child personality inventory
48
+ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4296431/?report=printable
49
+ 2/7
50
+ as breathing, memory, digestion, intelligence, and nourishment).[1,2,3,4,5,6,7,8,9]
51
+ Western psychologists, Carl Jung and HJ Eysenik classify the personality of an individual based on
52
+ temperament, behavior and characteristics such as ‘introvert’, ‘extrovert’ as a dimension of personality,
53
+ which HJ Eysenik extended this to include dimensions of neuroticism and psychoticism.[10]
54
+ In contrast, Ayurveda classics[1,2,3,4,5,6,7,8,9] propose a comprehensive outlook of personality,
55
+ encompassing physical­physiological aspects like color of the eyeball, texture of hair, appetite, sleep,
56
+ behavior, attitudes and interests, memory, intelligence, mental stamina of an individual based around
57
+ tridosha, recognizing that tridoshas physiological characteristics also influence mental and behavioral
58
+ qualities. Further, the texts suggests seven types of personality (vata, pitta, kapha, vata­pitta, vata­kapha,
59
+ pitta­kapha, and sama) determined by predominance of a single, pair, or all of the dosha.
60
+ Ayurveda considers the balanced state (sama) of tridosha as health. Person with predominance of single and
61
+ double doshas will always be afflicted by one or��more diseases.[1] Accordingly, Ayurveda recommends
62
+ specific diet and daily regime for different types of personalities for the prevention of health.
63
+ Statistical model of dosha prakriti based on analysis of a questionnaire has been developed.[11]. An analysis
64
+ of tridosha physiology, linking it to process of cellular physiology has been carried out.[12,13] Similarly a
65
+ genetic basis of tridosha constitution has been postulated.[14,15,16] Importance of dosha in health and
66
+ treatment methods have been discussed.[17]. A study comparing the Ayurveda personality concepts and
67
+ Western psychology concepts is available.[18] However, a simple and standardized instrument to assess the
68
+ prakriti of children according to Ayurvedic comprehensive concepts is not available. Hence, the present
69
+ investigation was carried out to develop Ayurveda child Personality inventory (ACPI).
70
+ MATERIALS AND METHODS
71
+ Ethical clearance was approved by research board of SVYASA (Yoga university). The ACPI was developed
72
+ based on 522 Sanskrit characteristics from 9 authoritative ancient texts describing characteristics typical of
73
+ vataja, pittaja, and kaphaja prakriti. Item reduction was carried out by deleting the repeated items,
74
+ ambiguous items, and by selecting those items specifically suitable for children. A total of 155 items in
75
+ Sanskrit, and translation in English, were presented to 10 Ayurveda experts. They were asked to judge the
76
+ correctness of each statement and to check: (1) whether any of the items were repeated or if any item should
77
+ be added? (2) whether the features of vataja, pittaja and kaphaja prakriti selected for the scale are correct,
78
+ and (3) if the constructed items were in acceptable translation of the Sanskrit in the original texts. As per their
79
+ suggestions, 147 items were retained and some of the items were changed and refined.
80
+ Based on the final Sanskrit statements, 165 questions of ACPI were framed by the researcher. The scale was
81
+ again presented to ten Ayurveda experts and three psychologists, who reviewed the format of this scale and
82
+ recommended a dichotomous scoring (0 and 1), which was adopted in the final ACPI. Suggestions in the
83
+ phrasing of questions were incorporated. A total of 158 questions that were agreed by all Ayurveda experts
84
+ and psychologists were retained. Initially, scale was answered by parents of 60 children. Item difficulty level
85
+ was analyzed.
86
+ The final ACPI has 135 items ­ out of this, 45 items for vataja prakriti (A­scale) 44 items for pittaja prakriti
87
+ (B­scale) and 46 items for kaphaja prakriti (C­scale) subscales. The scale was to be answered by the parents
88
+ of the children [Supplementary 1].
89
+ Supplementary 1
90
+ Ayurveda Child Personality Inventory for Parents
91
+ Data collection and analysis
92
+ For testing the reliability and validity, the scale was administered on parents of the children who were the
93
+ students of Maxwell public school in Bangalore, of both sex with an age range of 6­12 years.
94
+ The final 135 items of ACPI was administered on parents of 230 children (122 boys and 108 girls). Child
95
+ 7/29/2016
96
+ Development and initial standardization of Ayurveda child personality inventory
97
+ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4296431/?report=printable
98
+ 3/7
99
+ Personality Questionnaire[19] (CPQ) was administered on 30 children of either sex with an age range of 8­
100
+ 12 years.
101
+ The statistical package for social sciences (SPSS, version 10) was used for data analysis. The data were
102
+ analyzed for reliability. The split­half and Cronbach's alpha tests were applied for reliability analysis.
103
+ Pearson's correlation analysis was done to check the degree of association between vata, pitta, and kapha
104
+ scores. Principal component analysis (factor analysis) was done to check the validity.
105
+ RESULTS
106
+ Content validity
107
+ All the 10 Ayurveda experts, who served as judges, agreed for 158 questions.
108
+ Item difficulty level
109
+ This is defined as the presence of a said symptom expressed as the percentage of children who score positive
110
+ to that item.[20] The results obtained from the administration of ACPI on parents of 60 children showed 136
111
+ items that had less coefficient than 0.9 (answered, yes, by the most) and below 0.3 (answered, yes, by the
112
+ less volunteers) were retained.
113
+ Internal consistency
114
+ An analysis of the data collected from 230 parents of the children showed the Cronbach's alpha for V, P, and
115
+ K scales, which were 0.77, 0.55, and 0.84, respectively. The Split­half reliability for V, P, and K scales were
116
+ 0.65, 0.34, and 0.84, respectively. This shows that the three scales have good internal consistency.
117
+ Correlations
118
+ The subscales (vata, pitta, and kapha) correlated significantly (negatively) with each other [Table 1].
119
+ Factor analysis
120
+ Factor analytic coefficient (by principle component analysis) obtained for each items in the scale for all V, P,
121
+ and K scales for total score was more than 0.5 [Supplementary 2].
122
+ Supplementary 2
123
+ Principle component analytic coefficients of each item
124
+ Correlation with Child Personality Questionnaire
125
+ Vata and pitta scale scores positively correlated with A (warm hearted vs reserved), D (excitable vs
126
+ phlegmatic), E (dominant vs obedient), H (venturesome vs shy), N (shrewd vs forthright), 0 (guilt prone vs
127
+ self­assured), Q4 (tense vs relaxed) subscales of CPQ. Negatively correlated with B (bright vs dull), C
128
+ (emotionally stable vs affected by feelings), G (conscientious vs expedient), I (tender minded vs tough
129
+ minded), J (internally restrained vs vigorous), Q3 (controlled vs undisciplined self­conflict) subscales of
130
+ CPQ.
131
+ Similarly, kapha scale scores positively correlated with B, C, G, I, J, Q3 subscales of CPQ. Negatively
132
+ correlated with A, D, E, H, N, O, Q4 subscales of CPQ [Table 2].
133
+ DISCUSSION
134
+ The present study has described the development and initial standardization of 136 items, parents rating, the
135
+ ACPI as an instrument to assess the personality (prakriti) of the children.
136
+ Corelation between vataja, pittaja, and kaphaja scale scores was negative, suggesting discriminative validity.
137
+ The reliability of subscales was supported by Cronbach's alpha coefficient and Split­half analysis. This
138
+ provided the evidence of homogeneity of items.[21,22,23] The validity of items of subscales was supported
139
+ by Principle component analysis. Corelation with modern CPQ revealed significant relationship between
140
+ 7/29/2016
141
+ Development and initial standardization of Ayurveda child personality inventory
142
+ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4296431/?report=printable
143
+ 4/7
144
+ Eastern and Western personality concepts (p). Statistical significance suggests that vata and pitta prakriti
145
+ people are extravert and vulnerable to anxiety[22] [Table 2].
146
+ Applying the inventory to children, further validated the concept of prakriti. Among selected sample, 40%
147
+ were vata­pitta, 30%were pitta­kapha, 10% were kapha, 7% were vata, 8%were sama, and 5% were pitta [
148
+ Table 3].
149
+ Increased score in kapha in early age, and pitta, vata in later stages supported convergent validity [Table 4].
150
+ Measuring the prakriti of an individual is important aspect of maintaining one's health as the equilibrium state
151
+ of three dosha is considered as health.[1,2,3,4,5,6,7,8,9] One can prevent vulnerability for the somatic and
152
+ psychological diseases by following different regime and personality development methods for different
153
+ dosha. For example, person with predominance of vata should avoid bitter, spice, astringent taste foods, and
154
+ should consume sweet, sour taste foods. The treatment modalities are also different for different prakrti.
155
+ [1,2,3,4,5,6,7,8,9] Though published scales are available to assess the prakriti of an individual, they have
156
+ been standardized for adult age group. However, children require different mode of questions. Hence, ACPI
157
+ can be potentially used to identify the predominant dosha in children and thus help to plan suitable regime at
158
+ an early age to maintain the health.   Studies should be conducted on larger sample and norms should be
159
+ established. The present scale has the limitation mainly because of parent influence, at the same time the
160
+ comprehensive approach of analyzing prakriti and paper­pencil mode are the strength of this work.
161
+ CONCLUSIONS
162
+ An ACPI is a consistent and valid instrument. Tridosha measure may point out to lifestyle management to
163
+ prevent the disease and main the health of the children. Researchers can employ this instrument to assess the
164
+ effect of Yoga, personality development program on the prakriti of the children.
165
+ ACKNOWLEDGMENT
166
+ The authors thank Dr. Kishore Kumar, NDI (CCRAS unit), Bangalore, Dr. Uma Hirisave NIMHANS,
167
+ Bangalore, Dr. Arati Jagnnath, SVYASA, Bangalore and Ayurveda experts in Hubli Ayurveda College, for
168
+ their support and participation in the study.
169
+ Footnotes
170
+ Source of Support: Nil
171
+ Conflict of Interest: None declared.
172
+ REFERENCES
173
+ 1. Panday GS, editor. Caraka Samhita: Hindi Commentary, Vimanasthana Chapter 8 Verses 96­98. 5th ed.
174
+ New Delhi: Choukamba Publications; 1997. pp. 759–61.
175
+ 2. Hastry KA, editor. Sushruta Samhita: Hindi Vyakhya, Sharirasthana Chapter 4 Verses 63­75. 15th ed.
176
+ New Delhi: Choukamba Publications; 2002. pp. 38–9.
177
+ 3. Sharma S, editor. Ashtanga Sangraha: Sanskrit Commentary, Sharirasthana Chapter 8 Verses 9­16. 1st ed.
178
+ Varanasi: Choukamba Publications; 2006. pp. 328–29.
179
+ 4. Shastri P Ashtanga Hradaya: Sanskrit Commentary. 2nd ed. Varanasi: Choukamba Publications; 2002. pp.
180
+ 402–04. Sharira sthana 3 (85­94)
181
+ 5. Shastri P, editor. Ashtanga Hradaya: Sanskrit Commentary, Sharirasthana Chapter 3 Verses 85­94. 2nd ed.
182
+ Varanasi: Choukamba Publications; 2002. pp. 402–04.
183
+ 6. Krishnamurthy KH, editor. Bhela Samhita: English Commentary, Vimanasthana Chapter 4 verses 54­56.
184
+ 1st ed. Varanasi: Choukamba Publications; 2000. pp. 183–5.
185
+ 7. Brahmashankaramishra, editor. Bhavaprakash: Hindi Vyakhya, Poorvakhanda Chapter 4 verses 54­56.
186
+ 10th ed. Varanasi: Chaukamba Smaskrita Bhavan; 2002. p. 103.
187
+ 8. Pandit PS. Sharangadhara Samhita: Samskrita Vyakhya. 6th ed. Varanasi: Chaukamba Orientalia; 2005.
188
+ pp. 73–4. prathama khanda 6 (21­23)
189
+ 7/29/2016
190
+ Development and initial standardization of Ayurveda child personality inventory
191
+ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4296431/?report=printable
192
+ 5/7
193
+ 9. Pandit HT, editor. Harita Samhita: Hindi Vyakhya. 1st ed. Varanasi: Chaukamba Krishnadas Academy;
194
+ 2005. pp. 32–34.
195
+ 10. Misched W. Introduction to Personality. New York: Holt. Rinehart and Winston. Inc; 1976.
196
+ 11. Joshi RR. A biostatistical approach to ayurveda: Quantifying the tridosa. J Altern Complement Med.
197
+ 2004;10:879–89. [PubMed: 15650478]
198
+ 12. Hankey A. The Scientific Value of Ayurveda. J Altern Complement Med. 2005;2:221–5.
199
+ [PubMed: 15865485]
200
+ 13. Hankey A. A test of the systems analysis underlying the scientific theory of Ayurveda Tridosa. J Altern
201
+ Complement Med. 2005;11:385–90. [PubMed: 15992219]
202
+ 14. Bhushan P, Kalpana J, Arvind C. Classification of human population based on HLA gene polymorphism
203
+ and the concept of Prakriti in Ayurveda. J Altern Complement Med. 2005;11:349–53. [PubMed: 15865503]
204
+ 15. Patwardhan B, Bodeker G. Ayurvedic genomics: Establishing a genetic basis for mind­body typologies.
205
+ J Altern Complement Med. 2008;14:571–6. [PubMed: 18564959]
206
+ 16. Prasher B, Negi S, Aggarwal S, Mandal AK, Sethi TP, Deshmukh SR, et al. Indian Genome Variation
207
+ Consortium, Mukerji M. Whole genome expression and biochemical correlates of extreme constitutional
208
+ types defined in Ayurveda. J Transl Med. 2008;6:48. [PMCID: PMC2562368] [PubMed: 18782426]
209
+ 17. Mishra L, Singh BB, Dagenais S. Healthcare and disease management in Ayurveda. Altern Ther Health
210
+ Med. 2001;7:44–50. [PubMed: 11253416]
211
+ 18. Dube KC, Kumar A, Dube S. Personality types in Ayurveda. Am J Chin Med. 1983;11:25–34.
212
+ [PubMed: 6660210]
213
+ 19. Rutherford B, Cattell R. Hand book for the children's personality questionnaire. Illinois: Indian economy
214
+ edition; Institute of Personality and Ability testing. 1999
215
+ 20. Nunnaly JC. Psychometric Theory. 2nd ed. New York: Mc­Grow­Hill; 1978.
216
+ 21. AK Singh. Tests, Measurements and Research Methods in Behavioral Sciences. 5th ed. Patna: Bharati
217
+ Bhavan Publishers and Distributers; 2006.
218
+ 22. Anastasi A, Urbina S. Psychological Testing. 7th ed. Upper Saddle River: Pearson Education; 2005.
219
+ 23. Freeman FS. Theory and Practice of Psychological Testing. 3rd ed. New Delhi: Surjeet Publications;
220
+ 2006.
221
+ Figures and Tables
222
+ Table 1
223
+ Pearson correlation among subscales
224
+ Table 2
225
+ 7/29/2016
226
+ Development and initial standardization of Ayurveda child personality inventory
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+ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4296431/?report=printable
228
+ 6/7
229
+ Pearson's correlation coefficient with CPQ
230
+ Table 3
231
+ Mean dosha scores for three different diagnostic groups
232
+ Table 4
233
+ Mean scores in different age groups
234
+ 7/29/2016
235
+ Development and initial standardization of Ayurveda child personality inventory
236
+ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4296431/?report=printable
237
+ 7/7
238
+ Articles from Journal of Ayurveda and Integrative Medicine are provided here courtesy of Elsevier
subfolder_0/Development of a simplified yogic measure (bhramari time) of lung function in normal children– a correlational study.txt ADDED
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+ SENSE, 2014, Vol. 4 (4), 7-13
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+
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+
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+
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+
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+
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+ UDC: 233.852.5Y: 616.2
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+ © 2014 by the International Society for
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+
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+
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+
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+
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+ Original Scientific Paper
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+ Scientific Interdisciplinary Yoga Research
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+
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+
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+
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+ Development of a simplified yogic measure (bhramari time) of lung function in
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+ normal children - a correlational study
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+
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+ Vikas Rawat1, Rajesh S.K., Raghuram Nagarathna
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+ University Vivekananda
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+ Bangalore, India
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+
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+ Abstract: Yoga being accepted for use in schools there is a need for developing a scientifically acceptable
26
+ standardized tool to assess the progress of their practices that can be used in yoga classes for children.
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+ The present study was designed to validate the acceptability of bhramari time (BHT) by checking its
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+ correlation with Peak expiratory flow rate (PEFR) in healthy South Indian Children. Three hundred and
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+ eighty six healthy school children who attended yoga based Personality Development Camp were
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+ recruited for the study. Sample consist of 229 males and 157 females with a mean age of 12.78 years
31
+ (SD=1.69). Anthropometric measurements, BHT and PEFR were recorded. As hypothesized, BHT was
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+ significantly and positively correlated with PEFR (r=.35, p<0.01), Height (r=.29, p<0.01),
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+ Weight(r=.17, p<0.01) and Age (r=.22, p<0.01). Our study suggests that BHT can be recommended for
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+ use in mass camps as an acceptable scientifically validated yogic tool in young population to assess the
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+ progress of their practices in each class.
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+
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+ Key words: yoga, bhramari time, lungs function
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+
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+
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+ Introduction
41
+
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+ Yoga in its original form consists of a system of physical, psychological and ethical practices; although of
43
+ ancient origin, it transcends cultures and languages (Nagarathna, Nagendra, 2001). The popularity of yoga
44
+ is evident with emerging interest and research in the therapeutic applications of yoga in prevention and
45
+ management of psycho-physical conditions. Further, estimated prevalence of practicing Yoga has doubled
46
+ from 1997 to 2002, corresponding to 10.4 million adults in the U.S (Barnes, Powell-Griner, McFann,
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+ Nahin, 2004). Recent studies suggest that implementation of yoga is acceptable and feasible in a
48
+ secondary school setting and has the potential of playing a protective or preventive role in maintaining
49
+ mental health (Khalsa et al, 2012). Further, findings suggest that a school-based yoga intervention is
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+ acceptable to youth, teachers, and school administrators in serving chronically stressed and disadvantaged
51
+ youth (Mendelson et al, 2010). Research literature suggests that yoga improves children’s physical and
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+ mental well-being as it helps them improve their resilience, mood, and self-regulation skills pertaining to
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+ emotions and stress (Hagen, Nayar, 2014).
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+
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+ Furthermore, yoga training improves lung function, strength of inspiratory and expiratory muscles as well
56
+ as skeletal muscle strength and endurance of students (Mandanmohan, Jatiya, Udupa, Bhavanani, 2003).
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+ Several studies have shown that regular yoga practice increases the vital capacity, timed vital capacity,
58
+ maximum voluntary ventilation, breath holding time and maximal inspiratory and expiratory pressures
59
+ (Vedala, Mane & Paul, 2014). Yoga training has shown positive effect on improving lung function and
60
+ exercise capacity in patients with chronic obstructive pulmonary disease (Raub, 2002). Pulmonary
61
+
62
+ 1 Corresponding author: [email protected]
63
+ functions and diffusion capacity in patients of bronchial asthma before and after yogic intervention has
64
+ shown increased respiratory stamina (Soni, Singh, Munish, Singh, 2012).
65
+
66
+ Measurements of ventilator function is useful for assessment of physical fitness in children and adults and
67
+ also for diagnosis and follow up during management of conditions with increased airway resistance, such
68
+ as asthma, chronic bronchitis, and emphysema (Petty, 2006). Peak expiratory flow rate (PEFR) which is a
69
+ measure of the maximum flow achieved during an expiration delivered with maximal force starting from
70
+ the level of maximal lung inflation (Pedersen, 1997) recording is an essential measure in the evaluation of
71
+ ventilator function. Various types of instruments including hand held mini PFR meters are available to
72
+ measure PEFR (Holcroft, Eisen, Sama, Wegman, 2003). A simple, but reliable, method of measuring the
73
+ ventilator function of the lungs has long been sought.
74
+
75
+ Yoga lays emphasis on manipulation of breath movement (Pranayama), which contributes to positive
76
+ neurophysiologic responses (Vialatte, Bakardjian, Prasad, Cichocki, 2009). Yoga breathing exercises, as
77
+ an adjunct treatment improves pulmonary functions in both normal volunteers (Mandanmohan, Jatiya,
78
+ Udupa, Bhavanani, 2003) and in patients with bronchial asthma (Vedala, Mane & Paul, 2014). Yogic
79
+ breathing technique called Bhramari Pranayama (Bhpr), engages in producing a pulsating constant low
80
+ pitch sound imitating the buzzing of female bumble bee (Rajesh, Ilavarasu, Srinivasan, 2014).
81
+
82
+ With yoga being accepted for use in schools there is a need for developing a scientifically acceptable
83
+ standardized tool to assess the progress of their practices that can be used in yoga classes for children that
84
+ keeps their interest going. Bhramari time that involves measuring the slow exhalation time while making
85
+ a low pitched humming sound like that of a female honey bee has been used in our yoga based personality
86
+ camps for children and adults over many years as a tool to assess the progress of the practices. The
87
+ present study was designed to validate the acceptability of bhramari time by checking its correlation with
88
+ PEFR in healthy South Indian Children.
89
+
90
+ Methods
91
+
92
+ Participants
93
+ Three hundred and eighty six healthy school children who attended yoga based Personality Development
94
+ Camp in summer holidays in the serene campus of SVYASA University, Bengaluru were randomly
95
+ selected from a pool of 625 children. Children with a history of asthma, a recent history of respiratory
96
+ infection with or without persistent cough within the past two weeks and those with any major disability
97
+ or illness were excluded from the study. Participants in this study had no formal training in yogic
98
+ techniques.
99
+
100
+ Consent and ethical clearance
101
+ Signed informed consent was obtained from the parent or guardian of the child at the time of registration
102
+ after they had read the proposal of this simple non interventional study that involves non invasive data
103
+ collection. All procedures were reviewed and accepted by the institutional ethical committee of SVYASA
104
+ University. The children were explained in detail about the nature of the study and the voluntary nature of
105
+ participation and were not provided with any incentives for their participation.
106
+
107
+ Measurements
108
+
109
+ Demographic data
110
+ The weight (KG) was recorded using a standard electronic weighing scale. The participants were asked to
111
+ remove as much outerwear as possible. Further they were asked to remove the shoes and step up onto the
112
+ weighing scale and stand still over the center of the scale with body weight evenly distributed between
113
+ both feet. Standing height (cm) was measured without shoes and without traction using standard scale.
114
+ Procedure for bhramari time measurement
115
+ The procedure was performed in a spacious room during the morning hours between 9 AM to 11 AM in
116
+ the month of April Between third to fifth days after the inauguration of the camp. Bhramari breathing
117
+ technique: The term Bhramari is Sanskrit word signifies a female bee. This is a pranayama technique
118
+ wherein after a deep inhalation the participant exhales through the nasal airways with the mouth closed,
119
+ emulating the buzzing of bumblebees in a constant low pitch (Rajesh, Ilavarasu & Srinivasan, 2014).
120
+ Subjects sat on a comfortable cushion on the floor of the experimental room, in a crossed leg posture
121
+ keeping the spine erect, with eyes-closed and practiced three rounds of bhramari pranayama which was
122
+ taught to them in the classes on pranayama for three days before the child was taken up for the study. The
123
+ purpose and technique of the Bhramari breathing time was explained to the child followed by
124
+ demonstration of the correct manner of performing. They were closely observed to ensure that they
125
+ maintained the procedure correctly. Three trials were performed and the time duration of the exhalation
126
+ was measured using a stop watch. The best of the three readings was taken as the final Bhramari Time
127
+ (BHT).
128
+ Procedure for PEFR Measurement
129
+ A mini PEFR meter (Clement Clarke) was used to check the PEFR of these children. The purpose and
130
+ technique of performing PEFR was explained along with a demonstration of the correct manner of
131
+ performing the test. When subjects had understood the method and were able to perform correctly, they
132
+ were made to give the test in the standing position. They were closely observed to ensure that they
133
+ maintained an airtight seal between their lips and the mouthpiece of the instrument (Holcroft, Eisen,
134
+ Sama, Wegman, 2003). The highest value of the three readings was recorded as the final PEFR value.
135
+
136
+ Data analysis
137
+
138
+ All statistical analyses were performed using the Statistical Package for Social Sciences (version 16.0).
139
+ Pearson correlations were used to examine the association between height, weight, PFR and BHT.
140
+ Independent-samples t-tests were performed to compare groups.
141
+
142
+ Results
143
+
144
+ Three hundred ninety one subjects who satisfied the inclusion and exclusion criteria included in the study.
145
+ Five students were excluded due to missing data. Final sample consist of 229 males and 157 females.
146
+ Table I shows detail demographic profile. Participants age ranged from 9 to 16 years with a mean age of
147
+ 12.78 years (SD=1.69). Table II gives Distribution of Weight, Height, Peak Expiratory Flow Rate (PEFR)
148
+ and Bhramari Time (BHT) in different Age groups. BHT, PEFR, height and weight increased
149
+ progressively with age. Table III shows the zero-order correlations on all variables. As hypothesized,
150
+ BHT was significantly and positively correlated with PEFR (r=.35, p<0.01), Height (r=.29, p<0.01),
151
+ Weight(r=.17, p<0.01) and Age (r=.22, p<0.01). Further, PEFR had significant positive correlation with
152
+ Height (r=.64, p<0.01), Weight (r=.53, p<0.01) and Age (r=.53, p<0.01).
153
+ Independent-samples t-tests were performed to determine whether statistically significant differences
154
+ existed in height, weight, PFR and BHT between boys and girls. Table IV shows the gender differences.
155
+ The average values of BHT for all age groups ranged from 3 to 34 sec for boys and 5 –26 seconds for
156
+ girls. The PEFR values for boys ranged between 160 – 510 L/min and girls between 160 –410 L/min.
157
+ Gender wise analysis has shown no difference in any variables except on PFR. Boys scored significantly
158
+ higher PEFR than girls.
159
+
160
+
161
+
162
+
163
+ Table 1. Demographic details
164
+
165
+ N
166
+ Age
167
+ Weight
168
+ (Kg)
169
+ Height
170
+ (Cm)
171
+ PFR
172
+ (L/min)
173
+ BHT
174
+ (Sec)
175
+ 386
176
+ 12,78±1,69
177
+ 43,39±11,70
178
+ 149,80±12,20
179
+ 291,30±62,75
180
+ 13,13±4,98
181
+
182
+ Table 2. Distribution of Weight, Height, Peak Flow Rate and Bhramari Time in different Age groups.
183
+
184
+ Age
185
+ N
186
+ Weight
187
+ (Kg)
188
+ Height
189
+ (Cm)
190
+ PFR
191
+ (L/min)
192
+ BHT
193
+ (Sec)
194
+ 9
195
+ 10
196
+ 26,75±4,53
197
+ 135,30±11,75
198
+ 216,00±33,73
199
+ 9,60±2,84
200
+ 10
201
+ 32
202
+ 31,82±7,85
203
+ 134,45±8,52
204
+ 236,25±44,49
205
+ 11,00±2,95
206
+ 11
207
+ 46
208
+ 35,74±8,31
209
+ 140,33±8,41
210
+ 262,39±44,93
211
+ 12,59±4,42
212
+ 12
213
+ 71
214
+ 39,40±9,40
215
+ 145,43±9,92
216
+ 271,30±50,99
217
+ 12,78±4,79
218
+ 13
219
+ 93
220
+ 46,96±11,37
221
+ 152,27±8,92
222
+ 295,65±51,92
223
+ 12,91±5,27
224
+ 14
225
+ 71
226
+ 47,10±9,46
227
+ 156,04±8,36
228
+ 317,83±56,28
229
+ 14,17±5,14
230
+ 15
231
+ 45
232
+ 52,95±8,27
233
+ 161,27±9,56
234
+ 334,09±63,33
235
+ 14,14±5,41
236
+ 16
237
+ 18
238
+ 51,30±9,92
239
+ 161,56±5,65
240
+ 357,78±79,52
241
+ 15,28±5,95
242
+
243
+ Table 3. Zero-order between Bhramari Time, Peak Flow Rate, Height, Weight and Age (N=386)
244
+
245
+
246
+ PFR
247
+ Height
248
+ Weight
249
+ Age
250
+ BHT
251
+ .35**
252
+ .29**
253
+ .17**
254
+ .22**
255
+ PFR
256
+
257
+ .64**
258
+ .52**
259
+ .53**
260
+ Height
261
+
262
+
263
+ .74**
264
+ .68**
265
+ Weight
266
+
267
+
268
+
269
+ .57**
270
+ **. Correlation is significant at the 0.01 level (2-tailed).
271
+
272
+ Table 4. Comparison of boys and girls on all variables
273
+
274
+ Gender
275
+ N
276
+ Weight
277
+ Height
278
+ PEFR
279
+ BHT
280
+ Age
281
+ Boys
282
+ 229
283
+ 43,39±12,43
284
+ 149,91±13,15
285
+ 297,60±66,69
286
+ 13,18±5,31
287
+ 12,66±1,69
288
+ Girls
289
+ 157
290
+ 43,37±10,56
291
+ 149.64±10,67
292
+ 282,10±55,45
293
+ **
294
+ 13,06±4,48
295
+ 12,97±1,68
296
+ **p=0,02
297
+
298
+
299
+ Discussion
300
+
301
+ This study sets out to examine the relationship between PEFR and Bhramri Time among school children
302
+ in order to establish the utility of this yogic tool for use in mass programs and by individuals as a test of
303
+ their progress in the practice of yoga. The significant relationship between Bhramri Time and PEFR
304
+ confirmed our primary hypothesis. Further, the relationship between Bhramri Time and Anthropometric
305
+ data also has shown significance. Height had the strongest relationships with other variables. Overall, the
306
+ study showed that in healthy children PEFR (Ebomoyi, Iyawe, 2005) and BHT significantly increases
307
+ with height, weight and age, which is in agreement with the report of other studies.
308
+ PEFR is a measure of a dynamic factor during exhalation as it takes into account the rate of movement of
309
+ air in and out of the lungs and is considered the best single index of ventilatory function (Pedersen, 1997).
310
+ Unfortunately, it is time consuming, fatiguing, difficult to obtain acceptable data by novices and needs a
311
+ good instrument (although simple and portable). BHT is a useful test that is cost effective as it needs no
312
+ instruments and acceptable while teaching yoga to children in a school or a camp environment because of
313
+ the playful nature of the test that promotes self encouragement to continue the practices.
314
+ Potential limitations of this research must also be considered. We have used only PEFR using a mini
315
+ PEFR instrument which is a measure of forced expiratory volume in first second (FEV1) while BHT is a
316
+ measure of slow vital capacity (SVC). It would have been ideal to compare all measures of lung function
317
+ using a spirometer to establish the utility of the BHT. Secondly, the sample included was healthy young
318
+ children in a yoga camp environment which may be difficult to generalize for all children and adults.
319
+
320
+ Conclusion
321
+
322
+ Despite these limitations, the present study confirmed our primary hypothesis i.e. BHT correlated
323
+ positively with PEFR. To our knowledge, this is the first study to understand the relationship between
324
+ BHT and PEFR. BHT can be enhanced by training. Practice of yoga based breathing practice can increase
325
+ pulmonary function which in turn leads to enhancement of BHT (Vedala, Mane, Paul, 2014). Our study
326
+ suggests that BHT can be recommended for use in mass camps as an acceptable scientifically validated
327
+ yogic tool in young population to assess the progress of their practices in each class. Studies comparing
328
+ BHT with other variables of lung function may be carried out in future to confirm the validity and
329
+ reliability of this observation.
330
+
331
+
332
+ References:
333
+
334
+ 1. Barnes, P. M., Powell-Griner, E., McFann, K., & Nahin, R. L. (2004). Complementary and alternative medicine use among
335
+ adults: United States, 2002. Advance data, (343), 1-19.
336
+ 2. Ebomoyi M.I., & Iyawe V.I. (2005) Variations of peak expiratory flow rate with anthropometric determinants in a population
337
+ of healthy adult Nigerians, Nigerian Journal of Physiological Sciences, 20(1-2), 85-89.
338
+ 3. Hagen I., & Nayar U.S. (2014). Yoga for Children and Young People's Mental Health and Well-Being: Research Review and
339
+ Reflections on the Mental Health Potentials of Yoga. Frontiers in Psychiatry, 5:35.
340
+ 4. Holcroft, C. A., Eisen, E. A., Sama, S. R., & Wegman, D. H. (2003). Measurement characteristics of peak expiratory flow.
341
+ Chest, 124, 501-510.
342
+ 5. Jatiya, L., Udupa, K., & Bhavanani, A. B., with Mandanmohan. (2003). Effect of yoga training on handgrip, respiratory
343
+ pressures and pulmonary function. Indian journal of physiology and pharmacology, 47(4), 387-392.
344
+ 6. Khalsa, S. B. S., Hickey-Schultz, L., Cohen, D., Steiner, N., & Cope, S. (2012). Evaluation of the mental health benefits of
345
+ yoga in a secondary school: A preliminary randomized controlled trial. Journal of Behavioral Health Services and
346
+ Research, 39(1), 80-90.
347
+ 7. Mendelson, T., Greenberg, M. T., Dariotis, J. K., Gould, L. F., Rhoades, B. L., & Leaf, P. J. (2010). Feasibility and
348
+ preliminary outcomes of a school-based mindfulness intervention for urban youth. Journal of Abnormal Child Psychology, 38(7),
349
+ 985-994.
350
+ 8. Nagarathna, R., & Nagendra, H.R. (2001). Integrated Approach of Yoga Therapy for positive health. Bangalore: Swami
351
+ Vivekananda Yoga Prakashana;
352
+ 9. Petty, T. L. (2006). The history of COPD Early historical landmarks. International Journal of COPD, 1(1), 3-14.
353
+ 10. Pedersen, O. F. (1997). The Peak Flow Working Group: physiological determinants of peak expiratory flow. The European
354
+ respiratory journal. Supplement, 24, 11S-16S.
355
+ 11. Rajesh, S.K., Ilavarasu, J.V., & Srinivasan, T.M. Effect of Bhramari Pranayama on response inhibition: Evidence from the
356
+ stop signal task. International Journal of Yoga, 7:138-41
357
+ 12. Raub, J. A. (2002). Psychophysiologic effects of Hatha Yoga on musculoskeletal and cardiopulmonary function: a literature
358
+ review. Journal of alternative and complementary medicine (New York, N.Y.), 8(6), 797-812.
359
+ 13. Soni, R., Singh, K., Munish, K., & Singh, S. (2012). Study of the effect of yoga training on diffusion capacity in chronic
360
+ obstructive pulmonary disease patients: A controlled trial. International Journal of Yoga, 5(2), p.123.
361
+ 14. Vedala, S.R., Mane, A.B., & Paul, C.N. (2014). Pulmonary functions in yogic and sedentary population. International
362
+ Journal of Yoga; 7:155-9
363
+ 15. Vialatte, F. B., Bakardjian, H., Prasad, R., & Cichocki, A. (2009). EEG paroxysmal gamma waves during Bhramari
364
+ Pranayama: a yoga breathing technique. Consciousness and cognition, 18(4), 977-988.
365
+
366
+
367
+ Received: August 3, 2014
368
+ Accepted: September 1, 2014
369
+
subfolder_0/Development, validation, and feasibility of a school-based short duration integrated classroom yoga module A pilot study design.txt ADDED
@@ -0,0 +1,1509 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ © 2021 Journal of Education and Health Promotion | Published by Wolters Kluwer - Medknow
2
+ 1
3
+ Development, validation, and
4
+ feasibility of a school‑based short
5
+ duration integrated classroom yoga
6
+ module: A pilot study design
7
+ Atul Sinha, Sony Kumari, Mollika Ganguly
8
+ Abstract:
9
+ BACKGROUND: The practice of yoga is proven to have physical, cognitive and emotional benefits
10
+ for school children. Despite this many schools do not include yoga in their daily schedule. The
11
+ reasons cited are lack of time and resources. To overcome these problems the present study aimed
12
+ to develop and validate a short duration Integrated classroom yoga module. The design guidelines
13
+ were that it should be possible to practice in the classroom environment and that it could be led by
14
+ the class teacher. In this way the module would overcome the problem of both time and resource.
15
+ MATERIALS AND METHODS: The study had two main 
16
+  phases. In the first phase, selected ICYM
17
+ practices based on the literature review were validated by 21 subject matter experts using Lawhse’s
18
+ content validity ratio (CVR) formula. In the second phase, a pilot study using a paired sample prepost
19
+ measurement design was carried out on 49 
20
+  high  school children. The study was conducted in June
21
+ 2019. The intervention period was 1 month, and the test variables were physical fitness, cognitive
22
+ performance, self‑esteem, emotional well‑being, and personality characteristic.  
23
+  Paired sample t‑test was
24
+ the analysis tool and the software used was the Statistical Package for the Social Science version 26.
25
+ RESULTS: In the Lawshe’s CVR analysis, 17 out of the 24 practices tested were rated by experts
26
+ as essential as was the overall module (CVR score ≥0.429). In the pilot study, there were significant
27
+ differences in the postmean scores compared to premean scores, for all the 4 EUROFIT physical
28
+ fitness testing battery tests  (P  <  0.02), all the three scores of the Stroop 
29
+   color‑word naming
30
+ task (P < 0.001) and the Rosenberg self‑esteem scale (P < 0.008).
31
+ CONCLUSION: ICYM was validated and found feasible by the present 
32
+  study. It was found to have a
33
+ statistically significant impact on physical fitness, cognitive performance, and self‑esteem variables.
34
+ However, a randomized control trial with a longer intervention period is needed to strengthen the
35
+ present study.
36
+ Keywords:
37
+ Children’s cognitive function, children’s physical fitness, children’s psychosocial well‑being, classroom
38
+ yoga, school‑based yoga
39
+ Introduction
40
+ D
41
+ espite awareness of the benefits of
42
+ school‑based yoga, most schools
43
+ either have not incorporated the practice
44
+ of yoga in the school curriculum or have
45
+ done so sub‑optimally, usually one
46
+ class a week. The reasons range from
47
+ lack of time, a packed curricular and
48
+
49
+ co‑curricular schedule and the need for
50
+ resources such as yoga rooms, yoga mats, and
51
+ trained yoga instructors. If a solution can be
52
+ found to overcome the problems associated
53
+ with including yoga in the daily school
54
+ schedule, it will benefit children immensely.
55
+ The yogic vision of education is to lay the
56
+ foundations of character and personality
57
+ Address for
58
+ correspondence:
59
+ Dr. Sony Kumari,
60
+ Department of Yoga
61
+ and Humanities, Swami
62
+ Vivekananda Yoga
63
+ Anusandhana Samsthana,
64
+ 19 Eknath Bhavan,
65
+ Gavipuram Circle,
66
+ Kempe Gowda Nagar,
67
+ Bengaluru ‑ 560 019,
68
+ Karnataka, India.
69
+ E‑mail: sonykarmanidhi@
70
+ gmail.com
71
+ Received: 17‑06‑2020
72
+ Accepted: 02-10-2020
73
+ Published: 20-05-2021
74
+ Department of Yoga
75
+ and Humanities, Swami
76
+ Vivekananda Yoga
77
+ Anusandhana Samsthana,
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+ Bengaluru, Karnataka,
79
+ India
80
+ Original Article
81
+ Access this article online
82
+ Quick Response Code:
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+ Website:
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+ www.jehp.net
85
+ DOI:
86
+ 10.4103/jehp.jehp_674_20
87
+ How to cite this article: Sinha A, Kumari S,
88
+ Ganguly M. Development, validation, and feasibility
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+ of a school-based short duration integrated classroom
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+ yoga module: A pilot study design. J Edu Health
91
+ Promot 2021;10:148.
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+ This is an open access journal, and articles are
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+ distributed under the terms of the Creative Commons
94
+ Attribution‑NonCommercial‑ShareAlike 4.0 License, which
95
+ allows others to remix, tweak, and build upon the work
96
+ non‑commercially, as long as appropriate credit is given and
97
+ the new creations are licensed under the identical terms.
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+ For reprints contact: [email protected]
99
+ Sinha, et al.: Validation of integrated classroom yoga module
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+ 2
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+ Journal of Education and Health Promotion | Volume 10 | April 2021
102
+ based on self‑transformation.[1] Yoga is a system of
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+ disciplines for furthering an integrated development
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+ of multiple aspects of the individual’s personality.
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+ Through asanas  (physical postures) the body is
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+ maintained in a steady and supple state. By the practice
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+ of pranayama (breathing exercises) emotional stability,
108
+ self‑confidence and self‑control are developed. Through
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+ dhyana (meditation) the turbulent mind is stilled. The
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+ practice of yoga creates a balance in the personality.[2]
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+ Over the last three decades, modern research has
112
+ demonstrated positive results of yoga on children.
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+ Serwacki and Cook‑Cottone[3] reviewed 12 preliminary
114
+ studies of yoga in schools and found that yoga had a
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+ positive effect on cognitive performance, emotional
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+ well‑being, anxiety and negative behavior. Physical
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+ fitness was shown to be positively associated with yoga.[4]
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+ Another factor for considering school‑based yoga is its
119
+ possible role in promoting 
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+  health  literacy. Studies have
121
+ found a correlation between health literacy and health
122
+ promotion. A study by Karimi et al., 2019[5] defined
123
+ health literacy as the degree to which people are able
124
+ to choose, understand, process, communicate, and get
125
+ information for their health. They hypothesized that
126
+ health literacy aids correct decision making regarding
127
+ disease prevention, health promotion and for improving
128
+ quality of life. The authors conducted a randomized
129
+ controlled study with adolescents where the intervention
130
+ comprised the dissemination of the PBL health literacy
131
+ program. They found that the average level of health
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+ literacy in the intervention group increased significantly,
133
+ specifically in the self‑efficacy dimension. Another study
134
+ with adolescents by Bayati et al., 2018[6] found a direct
135
+ significant correlation of health literacy with all the
136
+ dimensions of health‑promotion. A study with students
137
+ found a significant relationship between adopting health
138
+ promoting lifestyle and aspects of spiritual growth, stress
139
+ management and general quality of life.[7] An aspect
140
+ of school‑based yoga is the dissemination of self‑care
141
+ knowledge. Hyde, 2012[8] says that school‑based yoga
142
+ as critical‑emancipatory pedagogy, effectively uses
143
+ national standards for physical education, health and
144
+ safety and social‑emotional learning to provide self‑care
145
+ knowledge and skills to students and teachers. Hence,
146
+ yoga may be considered beneficial from the perspective
147
+ of health literacy too.
148
+ The problems of the packed school schedule, time and
149
+ resources come 
150
+  in the way of incorporating yoga in
151
+ the daily school schedule. We hypothesize that a short
152
+ duration integrated classroom yoga module (ICYM)
153
+ can potentially overcome the problem of time and
154
+ resources. The 
155
+  short  duration would make it possible
156
+ to be practiced in the first period of the day without
157
+ impinging materially on the time for academic lessons.
158
+ Further, the class‑teacher can lead the practice in the
159
+ limited spaces of the classroom environment. This
160
+ ensures that no additional resources will be required.
161
+ Traditional texts of yoga too support its practice in the
162
+ classroom. Yogabhakti Saraswati says that children
163
+ enter the class with different states of mind. Yoga in the
164
+ classroom helps to harmonize their minds and create the
165
+ right balance between excitement and alertness.[2] The
166
+ objective of this study was to develop a validated short
167
+ duration ICYM and confirm its feasibility and efficacy
168
+ with a pilot study design.
169
+ Materials and Methods
170
+ The present study adopted a phased methodology
171
+ to develop, validate and confirm 
172
+  the feasibility and
173
+ efficacy of the school‑based short duration ICYM. In
174
+ the first phase, yoga practices were selected based on a
175
+ review of ancient and contemporary literature on yoga.
176
+ In the second phase, the content validity of the selected
177
+ practices was assessed by a panel of 21 subject matter
178
+ experts. The content validity was calculated using
179
+ Lawshe’s content validity ratio (CVR) formula.[9] In the
180
+ third phase, the validated ICYM was developed. In the
181
+ fourth phase a pilot study was conducted to confirm
182
+ the feasibility and ascertain the efficacy of the module.
183
+ Figure 1 shows the four phases adopted in the study.
184
+ The study was approved by the Institutional ethics
185
+ committee of 
186
+  S‑VYASA  University (reference number:
187
+ RES/IEC‑SVYASA/145/2019).
188
+ Designing integrated classroom yoga module
189
+ based on literature review
190
+ Ancient and contemporary texts of yoga were reviewed
191
+ to develop the content of the module. The ancient texts
192
+ reviewed were Patanjali yoga sutra,[10] Hatha yoga
193
+ pradipika,[11] Gheranda Samhita,[12] Siva Samhita,[13]
194
+ Svetasvatara Upanishad,[14] and Brhdaranyaka
195
+ Figure 1: Phases in developing a validated school‑based integrated classroom
196
+ yoga module
197
+ Sinha, et al.: Validation of integrated classroom yoga module
198
+ Journal of Education and Health Promotion | Volume 10 | April 2021
199
+ 3
200
+ Upansidhad.[15] The contemporary texts reviewed were
201
+ Light on Yoga,[16] Asana Pranayama Mudra Bandha[17]
202
+ and Integrated yoga therapy for positive health.[18] At an
203
+ overall level, these texts make out a compelling case for
204
+ making yoga integral to children’s education.
205
+ According to Niranjanananda[1] the purpose of education
206
+ is to develop a fully integrated personality by laying
207
+ the foundations of character and personality. He
208
+ elaborates on this theme by stating that there are two
209
+ main ingredients to achieve this objective. The first is the
210
+ development of discrimination between what is worthy
211
+ and what is not and the second is the development of a
212
+ spiritual attitude in order to face life with courage and
213
+ fortitude. Being self‑transformative, yoga aids in the
214
+ development of discrimination and a spiritual attitude.
215
+ Satyananda[2] says that yoga has immense benefits for
216
+ children. It gently massages the endocrine glands whose
217
+ proper functioning is critical for growing bodies. Regular
218
+ practice of yoga brings about emotional stability and
219
+ enhances self‑confidence, self‑awareness and self‑control.
220
+ Patanjali yoga sutra says that only a still mind is capable
221
+ of concentration and higher perception. It advises
222
+ constant practice and an attitude of nonattachment
223
+ to bring the mind under control. Asanas  (physical
224
+ postures) make the body firm and still. It lessens
225
+ the natural restlessness of the body making it easier
226
+ for the mind to concentrate. Pranayama  (breathing
227
+ exercises) removes rajas (uncontrolled restless activity)
228
+ and tamas (uncontrolled dullness) to make the mind
229
+ sattvic (controlled gentle steadiness). This in turn makes
230
+ the mind fit for concentration. Dharana (concentration)
231
+ and Dhyana (meditation) trains the mind to focus on
232
+ one subject effortlessly.[10] Hatha yoga pradipika states
233
+ that asanas  (physical postures) steadies the body,
234
+ makes it supple, induces relaxation and facilitates
235
+ free low of prana  (vital energy). The practice of
236
+ pranayama (breathing exercises) increases pranic force
237
+ and balances the mind. The left and right hemispheres
238
+ of the brain are balanced to allow both the logical and
239
+ intuitive faculties to function.[11] Gheranda Samhita says
240
+ yoga calms the mind and brings the whole personality
241
+ under control, moderation and balance.[12] According
242
+ to Siva samhita yoga helps to develop an attitude of
243
+ cheerfulness, enthusiasm and courage.[13]
244
+ Modern research has corroborated many of the
245
+ claims made by ancient texts of yoga. Studies have
246
+ shown that yoga had a beneficial effect on physical
247
+ fitness.[19] It improved musculoskeletal health.[20] It
248
+ impacted cardiopulmonary health positively,[21‑23] and
249
+ improved neuromuscular health.[23‑25] Studies have
250
+ associated yoga with significant improvements in
251
+ memory, attention and executive function.[26‑28] Yoga
252
+ enhanced self‑esteem,[29,30] and improved self‑efficacy,
253
+ self‑regulation and self‑adjustment.[31‑33] Yoga helped
254
+ improve mood state, depression, anger and anxiety.[34‑36]
255
+ Ferreira‑Vorkapic et al.[37] reviewed nine randomized
256
+ control trial studies and found positive effects of yoga
257
+ on mood indicators, tension, anxiety, self‑esteem and
258
+ memory. Yoga had a positive impact on three types
259
+ of response patterns called gunas. A study showed an
260
+ increase in 
261
+  sattva (controlled gentle steadiness) and
262
+ reduction in rajas (uncontrolled restless activity) and
263
+ tamas  (uncontrolled dullness).[38] Om chanting has
264
+ been shown to activate the neural region, increase
265
+ oxygenation, give psychological relaxation, relieve stress
266
+ and provide vigor.[39,40] Pradhan and Derle[41] reported
267
+ that chanting Gayatri mantra improved attention.
268
+ The ancient and contemporary literature on yoga were
269
+ scanned to identify and evaluate practices beneficial for
270
+ physical fitness, cognitive performance and emotional
271
+ well‑being of children. Only practices that could be
272
+ performed in the confined spaces of the classroom
273
+ environment were evaluated. Table 1 lists the selected
274
+ practices of asanas (physical postures), Table 2 lists the
275
+ selected practices of pranayama (breathing exercises),
276
+ and Table 3 lists the selected dhyana (meditation) and
277
+ mantra (chanting) practices and summarizes their benefits
278
+ as referred in yoga texts. The literature review found that all
279
+ 14 asanas selected impacted physical fitness, 11 asanas were
280
+ associated with cognitive performance and 6 with emotional
281
+ wellbeing. Of the 7 pranayama practices (breathing exercises)
282
+ selected, 5 had a positive effect on physical fitness and all 7
283
+ were beneficial for cognitive and emotional well‑being. The
284
+ 3 dhyana (meditation) and mantra (chanting) practices were
285
+ found to promote cognitive performance and emotional
286
+ well‑being.
287
+ Validation of Integrated classroom yoga module
288
+ by subject matter experts
289
+ The 24 practices selected from literature review were
290
+ incorporated in 4 alternate sets of yoga module. These
291
+ sets were meant to be rotated from 1 day to the next.
292
+ A questionnaire was prepared for yoga experts. They
293
+ were required to validate the practices on a three‑point
294
+ scale:
295
+ 1. Not essential: Has no role in improving physical
296
+ fitness, cognitive performance, emotional wellbeing
297
+ or personality characteristics of school children
298
+ 2. Useful but not essential: Useful but not important in
299
+ improving physical fitness, cognitive performance,
300
+ emotional well‑being or personality characteristics
301
+ of school children
302
+ 3. Essential: Very important for improving physical
303
+ fitness, cognitive performance, emotional wellbeing
304
+ or personality characteristics of school children.
305
+ The questionnaire further required them to rate the yoga
306
+ module as a whole on its ability to achieve the objectives
307
+ Sinha, et al.: Validation of integrated classroom yoga module
308
+ 4
309
+ Journal of Education and Health Promotion | Volume 10 | April 2021
310
+ of impacting physical fitness, cognitive performance,
311
+ emotional wellbeing and personality characteristics of
312
+ school children. The rating was on a three‑point scale.
313
+ 1. Not at all
314
+ 2. Moderately
315
+ 3. Very much.
316
+ Open ended suggestions for improvement of the module
317
+ were also solicited in the questions.
318
+ The experts were selected based on convenience
319
+ sampling. 21 yoga experts responded to the questionnaire.
320
+ Lawshe’s CVR formula was the statistical tool employed
321
+ to analyze the data.[9]
322
+ Designing a validated integrated classroom yoga
323
+ module
324
+ Definition of Integrated classroom yoga module
325
+ The premise worked on was that a short duration
326
+ yoga module, amenable to be led by the class teacher
327
+ and possible to practice in the limited spaces of the
328
+ classroom environment would encourage schools to
329
+ incorporate yoga in their daily schedule. ICYM was
330
+ thus conceived as a 12‑min integrated yoga module
331
+ to be practiced in the limited spaces of the classroom
332
+ environment. It could be led by the class teacher after
333
+ a 1‑week training in the practice and a working theory
334
+ of yoga.
335
+ The integrated module included different limbs of yoga
336
+ namely asanas (physical postures), pranayama (breathing
337
+ exercises), dhyana (meditation) and mantra (chanting).
338
+ The design was based on three predefined criteria:
339
+ 1. It should be an integrated yoga module
340
+ 2. It should be possible to practice the module in the
341
+ limited spaces of the classroom environment
342
+ 3. The choice of practices should have the ability to
343
+ impact physical fitness, cognitive performance,
344
+ emotional well‑being and personality characteristics
345
+ of school children.
346
+ Table 1: Asanas (physical postures) selected from literature review
347
+ Asanas (physical postures)
348
+ Benefits
349
+ Textual references
350
+ Sideways bending/twisting
351
+ Katichakrasana
352
+ Tones upper body; corrects posture; relieves stress
353
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
354
+ TirikayaTadasana
355
+ Exercises and balances side muscles
356
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
357
+ ArdhakatiChakrasana
358
+ Stimulates sides and spine; improves liver function
359
+ Positive Health. Nagarathna and Nagendra (2011)
360
+ Parsvakonnasana
361
+ Tones lower body; increases peristaltic activity
362
+ Light on Yoga. Iyengar (2012)
363
+ Forward and backward bending
364
+ Prasarita Padohastasana +
365
+ Ardhachakrasana
366
+ Develops lower body muscles; improves flexibility,
367
+ increase blood flow to head region
368
+ Light on Yoga. Iyengar (2012)
369
+ Padahastasana +
370
+ Ardhachakrasana
371
+ Tones abdomen; improves digestive health;
372
+ improves metabolism, improves concentration
373
+ Light on Yoga. Iyengar (2012)
374
+ Positive Health. Nagarathna and Nagendra (2011)
375
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
376
+ Padahastasana +
377
+ Hastauthanasana
378
+ Tones abdomen; improves digestive health;
379
+ improves metabolism, improves concentration
380
+ Light on Yoga. Iyengar (2012)
381
+ Positive Health. Nagarathna and Nagendra (2011)
382
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
383
+ Stretching
384
+ Tadasana
385
+ Lightness; mental agility; physical and mental
386
+ balance; tones nerves
387
+ Light on Yoga. Iyengar (2012)
388
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
389
+ ParivrittaTrikonasana
390
+ Tones lower body; invigorates abdominal organs;
391
+ stimulates nervous system
392
+ Light on Yoga. Iyengar (2012)
393
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
394
+ Gaumukhasana
395
+ Tones upper body; regulates endocrine system;
396
+ regulates prana flow; steadies body and calms
397
+ mind, increases energy and awareness
398
+ Hatha Yoga Pradipika. Muktibodhananda (1985)
399
+ Gheranda Samhita. Niranjananda (2012)
400
+ Light on Yoga. Iyengar (2012)
401
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
402
+ Ardhachandrasana
403
+ Strengthens lower body and abdomen; improves
404
+ digestion; improves balance
405
+ Gheranda Samhita. Niranjananda (2012)
406
+ Light on Yoga. Iyengar (2012)
407
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
408
+ Balancing
409
+ Vrkshasana
410
+ Improves balance; strengthens lower body;
411
+ promotes kidney health
412
+ Gheranda Samhita. Niranjananda (2012)
413
+ Light on Yoga. Iyengar (2012)
414
+ Garudasana
415
+ Strengthens and loosens body; tones nerves,
416
+ develops concentration
417
+ Gheranda Samhita. Niranjananda (2012)
418
+ Light on Yoga. Iyengar (2012)
419
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
420
+ Veerbhadrasana Pose III
421
+ Creates harmony and balance; tones abdomen;
422
+ gives vigour; improves concentration
423
+ Light on Yoga. Iyengar (2012)
424
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
425
+ Sinha, et al.: Validation of integrated classroom yoga module
426
+ Journal of Education and Health Promotion | Volume 10 | April 2021
427
+ 5
428
+ Designing a validated Integrated classroom yoga module
429
+ The validated practices were incorporated in the ICYM.
430
+ From the open‑ended suggestions given by experts we
431
+ thought it useful to include a positive affirmation practice.
432
+ Another suggestion incorporated was to slow down the
433
+ pace of the practice to ensure that children were not tired.
434
+ The parameters followed to design the module were:
435
+ 1. The module duration was 12 min
436
+ 2. Two sets were to be made meant to be practiced on
437
+ alternate days to provide variety and derive more
438
+ benefits
439
+ 3. The practice was to start with dhyana (meditative
440
+ silence) to harmonize the mental state of the cohort
441
+ 4. The asanas (physical postures) that followed would
442
+ comprise side bending or twisting, forward and
443
+ backward bending, stretching and balancing to
444
+ ensure that the whole body was exercised
445
+ 5. The
446
+ asanas
447
+ were
448
+ to
449
+ be
450
+ followed
451
+ by
452
+ pranayama 
453
+ (breathing
454
+ exercises)
455
+ 6. At the tail end, there was dhyana (meditative silence)
456
+ and OM chanting to relax the body and mind. The
457
+ module 
458
+  ended  with a positive 
459
+  affirmation.
460
+ The ICYM module is presented in Table 4.
461
+ Pilot study to confirm the feasibility of integrated
462
+ classroom yoga module
463
+ Design
464
+ The aim of the pilot study was to test the feasibility
465
+ and efficacy of the validated ICYM in a school setting.
466
+ The design was a paired sample prepost measurement
467
+ of means of physical fitness, cognitive performance,
468
+ self‑esteem, emotional well‑being, and personality
469
+ characteristic variables.
470
+ Table 2: Pranayama (Breathing exercises) selected from literature review
471
+ Pranayama (breathing exercises)
472
+ Benefits
473
+ Textual reference
474
+ Bhastrika
475
+ Stimulates cerebral region; strengthens nervous
476
+ system; oxygenates blood; stimulates heart;
477
+ detoxification; unblocks prana movement;
478
+ stimulates metabolism; lowers stress; induces
479
+ clarity of thought and improves concentration
480
+ Hatha Yoga Pradipika. Muktibodhananda (1985)
481
+ Gheranda Samhita. Niranjananda (2012)
482
+ Light on Yoga. Iyengar (2012)
483
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
484
+ Ujjai
485
+ Relaxes; develops psychic sensitivity;
486
+ internalises the senses; calms the mind;
487
+ promotes cardio and digestive health
488
+ Hatha Yoga Pradipika. Muktibodhananda (1985)
489
+ Gheranda Samhita. Niranjananda (2012)
490
+ Light on Yoga. Iyengar (2012)
491
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
492
+ Yogic breathing (abdominal)
493
+ Relaxed and comfortable breathing; gives
494
+ vitality and calmness; clarity of thought
495
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
496
+ Positive Health. Nagarathna and Nagendra (2011)
497
+ Nadi Shudhi
498
+ Purifies nadis; increases prana capacity;
499
+ eliminates bodily disorders; makes breathing
500
+ rhythmic; soothes nerves; stills the mind;
501
+ balances brain hemispheres; improves
502
+ concentration
503
+ Hatha Yoga Pradipika. Muktibodhananda (1985)
504
+ Gheranda Samhita. Niranjananda (2012)
505
+ Light on Yoga. Iyengar (2012)
506
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
507
+ Positive Health. Nagarathna and Nagendra (2011)
508
+ Sheetali and Sadanta
509
+ Cools the body and mind; keeps teeth and
510
+ gums healthy; harmonises the endocrine
511
+ system; reduces BP; encourages flow of prana;
512
+ gives vigour; gives inner tranquillity
513
+ Hatha Yoga Pradipika. Muktibodhananda (1985)
514
+ Gheranda Samhita. Niranjananda (2012)
515
+ Light on Yoga. Iyengar (2012)
516
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
517
+ Positive Health. Nagarathna and Nagendra (2011)
518
+ Bhramari
519
+ Awakens psychic sensitivity; relieves anxiety;
520
+ alleviates anger; reduces BP; helps in throat
521
+ ailments; creates healing capacity
522
+ Hatha Yoga Pradipika. Muktibodhananda (1985)
523
+ Gheranda Samhita. Niranjananda (2012)
524
+ Asana Pranayama Mudra Bandha. Satyananda (2009)
525
+ Positive Health. Nagarathna and Nagendra (2011)
526
+ Table 3: Dhyana (meditation) and mantra (chanting) practices shortlisted from literature review
527
+ Meditation/Chanting
528
+ Benefits
529
+ Textual reference
530
+ Dhyana (meditation)
531
+ Mauna
532
+ Control over mind; stillness, one
533
+ pointedness, continuous awareness; deep
534
+ relaxation; reduced metabolic rate; light
535
+ and expansive feeling
536
+ Patanjali Yoga Sutra. Vivekananda (1986)
537
+ Hatha Yoga Pradipika. Muktibodhananda (1985)
538
+ Gheranda Samhita. Niranjananda (2012)
539
+ Positive Health. Nagarathna and Nagendra (2011)
540
+ Mantra (chanting)
541
+ OM and Gayatri
542
+ Mantras
543
+ Steadies the senses and quietens the mind;
544
+ balances the emotions; purifies the mind
545
+ Svetasvatara Upanishad. Tejomayananda (2011)
546
+ Brhadaranyaka Upanishad. Madhavananda (1934)
547
+ Positive Health. Nagarathna and Nagendra (2011)
548
+ Sinha, et al.: Validation of integrated classroom yoga module
549
+ 6
550
+ Journal of Education and Health Promotion | Volume 10 | April 2021
551
+ Participants
552
+ The participants for the present study were selected
553
+ from an urban campus of the multi‑campus Samsidh
554
+ Mount Litera Zee School group in Bengaluru, India.
555
+ The participants were selected randomly from Grades
556
+ 7–10. A grade‑wise quota was predecided, and equal
557
+ gender ratio was fixed. The selection of participants
558
+ was made blindly and randomly by drawing from
559
+ paper slips. The inclusion criteria were: (i) participants
560
+ must be from Grades 7–10 and (ii) of both genders. The
561
+ exclusion criteria were: (i) any history of major physical
562
+ illness or surgery in the past 2 months, (ii) any mental
563
+ illness and (iii) any condition where physical activity
564
+ was contraindicated.
565
+ Intervention
566
+ The intervention period was 1 month, with 5 days a
567
+ week of practice in the beginning of the first period of the
568
+ school day. The class teachers were trained by qualified
569
+ yoga instructors over daily 1 h sessions for 7 days. The
570
+ training included an overview of the discipline of yoga
571
+ and its various limbs. The benefits of each practice were
572
+ conveyed to them. Each yoga exercise was demonstrated
573
+ and practiced. Teachers had to lead mock sessions.
574
+ A video of the module was also given to the teachers.
575
+ Every 2 weeks, there was a top‑up training session
576
+ conducted for the teachers.
577
+ Ethics
578
+ The study was approved by the Institutional ethics
579
+ committee of S‑VYASA University (reference number:
580
+ RES/IEC‑SVYASA/145/2019). The school administration
581
+ was briefed in writing and verbally on the details of
582
+ the study and the intervention. Informed consent was
583
+ obtained from the school administration.
584
+ Assessment
585
+ The participants were assessed for physical fitness, cognitive
586
+ performance, self‑esteem, emotional well‑being and
587
+ personality characteristic. Four tests from EUROFIT physical
588
+ fitness testing battery were conducted.[42] The Stroop
589
+ color-word naming task was used to measure cognitive
590
+ performance.[43] Rosenberg self‑esteem scale[44] and WHO‑5
591
+ well‑being index[45] were utilized to measure emotional
592
+ well‑being. Sushruta child personality inventory (SCPI)[46]
593
+ was employed to measure child personality characteristic.
594
+ EUROFIT physical fitness testing battery
595
+ Flamingo balance test
596
+ Participants balanced on a narrow wooden bar on their
597
+ preferred leg. The free leg was flexed at the knee. Number
598
+ of falls in 60 s was recorded.
599
+ Sit and reach flexibility test
600
+ Participants were made to sit on the floor with both legs
601
+ stretched, touching the base of a measuring table with
602
+ Table 4: Integrated classroom yoga module: Set 1 and Set 2 practiced on alternate days
603
+ Set 1
604
+ Set 2
605
+ Yoga practice
606
+ Time
607
+ Description
608
+ Yoga practice
609
+ Time
610
+ Description
611
+ Dhyana (Meditative silence)
612
+ 1 min
613
+ Sit straight with eyes closed.
614
+ Attention on breathing. Watch
615
+ your thoughts flowing
616
+ Dhyana (Meditative silence)
617
+ 1 min
618
+ Sit straight with eyes closed.
619
+ Attention on breathing. Watch
620
+ your thoughts flowing
621
+ Asanas
622
+ Asanas
623
+ Katichakrasana
624
+ 1 min
625
+ 20 rounds
626
+ Ardhakatichakrasana
627
+ 1 min
628
+ Hold for7 counts on each side
629
+ Hastauthanasana/
630
+ Padahastasana
631
+ 1 min
632
+ 3 rounds backward‑forward
633
+ bending. On 4th round hold for
634
+ 7 counts on backward bend
635
+ and then on forward bend
636
+ Ardhachakrasana/
637
+ Padahastasana
638
+ 1 min
639
+ 3 rounds of backward‑forward
640
+ bending. On 4th round hold
641
+ for 7 counts on back bend
642
+ and then
643
+ Tadasana
644
+ 1 min
645
+ 3 rounds of up and down
646
+ followed by 1 round of holding
647
+ for 10 counts
648
+ Gaumukhasana (standing)
649
+ 1 min
650
+ Hold on each side to the
651
+ count of 10
652
+ Vrkhsasana
653
+ 1 min
654
+ Hold on each side for 10
655
+ counts
656
+ Garudasana
657
+ 1 min
658
+ Hold on each side for 10
659
+ counts
660
+ Pranayama
661
+ Pranayama
662
+ Yogic breathing (abdominal)
663
+ 1 min
664
+ 10 rounds
665
+ Yogic breathing (abdominal)
666
+ 1 min
667
+ 10 rounds
668
+ Nadi Shudhi
669
+ 2 min
670
+ 6 rounds
671
+ Nadi Shudhi
672
+ 2 min
673
+ 6 rounds
674
+ Bhramari
675
+ 1 min
676
+ 6 rounds
677
+ Bhramari
678
+ 1 min
679
+ 6 rounds
680
+ OM chanting
681
+ 1 min
682
+ 6 rounds
683
+ OM chanting
684
+ 1 min
685
+ 6 rounds
686
+ Dhyana
687
+ 1 min
688
+ Mentally recap the practices.
689
+ Attention on breathing
690
+ Dhyana
691
+ 1 min
692
+ Mentally recap the practices.
693
+ Attention on breathing
694
+ Affirmation
695
+ Affirmation
696
+ I am a powerful soul
697
+ 0.5 min 3 rounds
698
+ I am a loveful soul
699
+ 0.5 min
700
+ 3 rounds
701
+ Closing
702
+ 0.5 min Rub palms, massage eyes,
703
+ face, neck. With a few blinks
704
+ open eyes
705
+ Closing
706
+ 0.5 min
707
+ Rub palms, massage eyes,
708
+ face, neck. With a few blinks
709
+ open eyes
710
+ Total timing
711
+ 12 min
712
+ Total timing
713
+ 12 min
714
+ Sinha, et al.: Validation of integrated classroom yoga module
715
+ Journal of Education and Health Promotion | Volume 10 | April 2021
716
+ 7
717
+ their 
718
+  spine erect. The table had a measuring scale. The
719
+ initial reading on the measuring scale was taken at the
720
+ point where the tip of the longest finger touched. They
721
+ were then asked to stretch fully without bending their
722
+ legs. The final reading where the tip of the longest finger
723
+ reached was taken and the distance of stretch calculated
724
+ by subtracting the initial (non stretch reading) from the
725
+ final (full stretch) reading.
726
+ Sit ups trunk strength
727
+ Participants were required to lie on their back with knees
728
+ bent; thighs kept 
729
+  at right angle to the torso and feet flat
730
+ on the ground. Their hands were kept behind their head.
731
+ Participants performed sit‑ups from this position and
732
+ returned to the initial position. The number of sit‑ups in
733
+ 30 s was recorded. Incomplete sit‑ups were not counted.
734
+ 10 × 5‑m shuttle run agility test
735
+ Cones were kept at a distance of 10 m. At the word ‘Go’
736
+ the participants ran to the cone 10 m away and back five
737
+ times without stopping. At the end of the fifth round,
738
+ the timing was recorded using a stopwatch.
739
+ Stroop color‑word naming task
740
+ The Stroop color‑word task measures the executive
741
+ function involving word, color and an interference naming
742
+ response. The test consists of three pages. The first page
743
+ tests how fast the participant can read out words (correct
744
+ number of words read in 45 s). The second page tests how
745
+ fast the participant can call out the colors (correct number
746
+ of colors called in 45 s). The third page tests the speed
747
+ with which the participant can name the color of the ink
748
+ and disregard the word printed in that color ink (correct
749
+ number of ink colors called in 45 s). The test in effect
750
+ measures the participant’s control over neuropsychological
751
+ functions involved in color and word naming responses.[39]
752
+ The test extracts three scores, namely Stroop word score,
753
+ Stroop color score and Stroop color‑word score.
754
+ Rosenberg self‑esteem scale
755
+ The Rosenberg self‑esteem scale is a self‑report scale.
756
+ It is a 10‑item scale measuring both positive and
757
+ negative feelings associated with global self‑esteem. The
758
+ instrument uses a 4‑point Likert scale.
759
+ WHO‑5 well‑being index
760
+ The WHO‑5 well‑being index is a self‑report scale. It
761
+ has 5 items measuring positive feelings associated with
762
+ emotional well‑being. The instrument uses a 6‑point
763
+ Likert scale.
764
+ Sushruta child personality inventory
765
+ The SCPI is a self‑report scale measuring personality
766
+ characteristic. It has 54 items and uses a binomial Yes/
767
+ No scale. The scale is based on the concept that the mind
768
+ is always in a dynamic equilibrium between three types
769
+ of response patterns called gunas. The three patterns are
770
+ Sattva (controlled gentle steadiness), Rajas (uncontrolled
771
+ restless activity) and Tamas (uncontrolled dullness).[47]
772
+ Well‑being is disturbed when Rajas and Tamas become
773
+ dominant.
774
+ The raw data were analyzed using the Statistical Package
775
+ for the Social Science (SPSS) version 26, IBM, USA.
776
+ Results
777
+ Results of validation of Integrated classroom yoga
778
+ module by subject matter experts
779
+ The ICYM was evaluated by subject matter experts (n = 21).
780
+ The qualification of the experts was Ph.D., (Yoga) 13,
781
+ MD (Yoga Therapy) 1, M.Sc., (Yoga) 2, Yoga instructors
782
+ certification course 5. The mean number of years’
783
+ experience in teaching yoga was M = 19.9 (8.57) and the
784
+ range was 4–40. The characteristics of the expert panel are
785
+ given in Table 5. To test content validity of subject matter
786
+ expert ratings, Lawshe’s CVR analysis was undertaken.
787
+ Tables 6‑9 gives the results of content validity for the
788
+ 24 yoga practices proposed. For a panel size of 21 the
789
+ CVRcrit was calculated at 
790
+  0.429. A CVR score ≥CVRcrit
791
+ would constitute sufficient evidence to validate that
792
+ practice. Conversely a CVR score <CVRcrit would indicate
793
+ insufficient evidence to validate that practice. Out of the 14
794
+ asanas (physical postures) 12 had a CVR score ≥CVRcrit.
795
+ Out of the 7 pranayama practices (breathing exercises), 3
796
+ cleared the content validity test with CVR score ≥CVRcrit.
797
+ 1 dhyana (meditation) and 1 mantra (chanting) practice
798
+ cleared the content validity test with a CVR score ≥CVRcrit.
799
+ The overall module also cleared the content validity test
800
+ with a CVR score ≥CVRcrit indicating that the overall
801
+ module was rated by experts as capable of achieving its
802
+ objectives.
803
+ Results of pilot study to confirm feasibility and
804
+ efficacy of Integrated classroom yoga module
805
+ Participants for the pilot study were selected randomly
806
+ from grades 7–10. The sample size achieved was N = 49.
807
+ The mean age was M = 13.63 (1.014), range = 12–16 years
808
+ and gender ratio B:G = 23:26 [Table 5]. A paired sample
809
+ t‑test was conducted to test the hypothesis that yoga
810
+ Table 5: Characteristics of subject matter experts
811
+ (n=21)
812
+ Characteristic
813
+ Number
814
+ Qualification
815
+ Ph.D. (Yoga)
816
+ 13
817
+ M.Sc. (Yoga)
818
+ 2
819
+ MD (Yoga)
820
+ 1
821
+ Yoga instructors certification
822
+ 5
823
+ Experience
824
+ Mean (SD)
825
+ 19.90 (8.57)
826
+ Range
827
+ 4‑40 years
828
+ SD=Standard deviation
829
+ Sinha, et al.: Validation of integrated classroom yoga module
830
+ 8
831
+ Journal of Education and Health Promotion | Volume 10 | April 2021
832
+ intervention with the validated ICYM would result in
833
+ statistically significant differences in postintervention
834
+ means compared to preintervention means for physical
835
+ fitness, cognitive performance, self‑esteem, emotional
836
+ well‑being, and personality characteristic variables. The
837
+ intervention period was 1 month, with 5 days a week of
838
+ practice. The preassessment was done in the middle of July
839
+ 2019 and the postassessment in the middle of August 2019.
840
+ EUROFIT physical fitness testing battery
841
+ The paired sample t‑test was associated with
842
+ statistically significant differences in postintervention
843
+ means compared to preintervention means with
844
+ small‑to‑medium effect 
845
+  sizes for all four tests, namely
846
+ balance, flexibility, strength, and agility.
847
+ Flamingo balance test: T  (48) = 3.03, P  =  0.004,
848
+ Cohen’s d = 0.43.
849
+ Sit and reach flexibility test: T (48) = 2.52, P = 0.015,
850
+ Cohen’s d = 0.36.
851
+ Sit ups trunk strength test: T (48) = 2.55, P = 0.014,
852
+ Cohen’s d = 0.36.
853
+ 10 × 5 m shuttle run agility test: T (48) = 2.61, P = 0.012,
854
+ Cohen’s d = 0.37.
855
+ Table 8: Validated meditation and chanting practices using Lawshe’s content validity ratio (n=21)
856
+ Dhyana (Meditation) and Mantra (chanting)
857
+ ne
858
+ N/2
859
+ CVR (ne‑N/2)/N/2
860
+ CVRcrit
861
+ Select/reject
862
+ Mauna
863
+ 19
864
+ 10.5
865
+ 0.810
866
+ 0.429
867
+ Select
868
+ OM mantra
869
+ 19
870
+ 10.5
871
+ 0.810
872
+ 0.429
873
+ Select
874
+ Gayatri mantra
875
+ 12
876
+ 10.5
877
+ 0.143
878
+ 0.429
879
+ Reject
880
+ n=Total number of panellists, ne=Total number of essentials (2) for each practice, CVR=Content validity ratio, CVRcrit=Minimum value for acceptance based on
881
+ binomial probabilities for panel size
882
+ Table 6: Validated asanas (physical postures) using Lawshe’s CVR (n=21)
883
+ Asana (physical posture)
884
+ ne
885
+ N/2
886
+ CVR (ne‑N/2)/N/2
887
+ CVRcrit
888
+ Select/reject
889
+ Katichakrasana
890
+ 15
891
+ 10.5
892
+ 0.810
893
+ 0.429
894
+ Select
895
+ TirikayaTadasana
896
+ 13
897
+ 10.5
898
+ 0.429
899
+ 0.429
900
+ Select
901
+ ArdhakatiChakrasana
902
+ 17
903
+ 10.5
904
+ 0.619
905
+ 0.429
906
+ Select
907
+ Parsvakonnasana
908
+ 15
909
+ 10.5
910
+ 0.429
911
+ 0.429
912
+ Select
913
+ PrasaritaPadohastasana + ardhachakrasana
914
+ 14
915
+ 10.5
916
+ 0.333
917
+ 0.429
918
+ Reject
919
+ Padahastasana + ardhachakrasana
920
+ 16
921
+ 10.5
922
+ 0.524
923
+ 0.429
924
+ Select
925
+ Padahastasana + hastauthanasana
926
+ 18
927
+ 10.5
928
+ 0.714
929
+ 0.429
930
+ Select
931
+ Tadasana
932
+ 17
933
+ 10.5
934
+ 0.619
935
+ 0.429
936
+ Select
937
+ ParivrittaTrikonasana
938
+ 16
939
+ 10.5
940
+ 0.524
941
+ 0.429
942
+ Select
943
+ Gaumukhasana
944
+ 16
945
+ 10.5
946
+ 0.524
947
+ 0.429
948
+ Select
949
+ Ardhachandrasana
950
+ 14
951
+ 10.5
952
+ 0.333
953
+ 0.429
954
+ Reject
955
+ Vrkshasana
956
+ 19
957
+ 10.5
958
+ 0.810
959
+ 0.429
960
+ Select
961
+ Garudasana
962
+ 16
963
+ 10.5
964
+ 0.524
965
+ 0.429
966
+ Select
967
+ Veerbhadrasana Pose III
968
+ 16
969
+ 10.5
970
+ 0.524
971
+ 0.429
972
+ Select
973
+ n=Total number of panellists, ne=Total number of essentials (2) for each practice, CVR=Content validity ratio, CVRcrit=Minimum value for acceptance based on
974
+ binomial probabilities for panel size
975
+ Table 7: Validated pranayama practices (breathing exercises) using Lawshe’s content validity ratio (n=21)
976
+ Asana (physical posture)
977
+ ne
978
+ N/2
979
+ CVR (ne‑N/2)/N/2
980
+ CVRcrit
981
+ Select/Reject
982
+ Bhastrika
983
+ 11
984
+ 10.5
985
+ 0.048
986
+ 0.429
987
+ Reject
988
+ Ujjai
989
+ 9
990
+ 10.5
991
+ −0.143
992
+ 0.429
993
+ Reject
994
+ Yogic breathing (abdominal)
995
+ 18
996
+ 10.5
997
+ 0.714
998
+ 0.429
999
+ Select
1000
+ Nadi Shudhi
1001
+ 19
1002
+ 10.5
1003
+ 0.810
1004
+ 0.429
1005
+ Select
1006
+ Sheetali
1007
+ 12
1008
+ 10.5
1009
+ 0.143
1010
+ 0.429
1011
+ Reject
1012
+ Sadanta
1013
+ 10
1014
+ 10.5
1015
+ −0.048
1016
+ 0.429
1017
+ Reject
1018
+ Bhramari
1019
+ 19
1020
+ 10.5
1021
+ 0.810
1022
+ 0.429
1023
+ Select
1024
+ n=Total number of panellists, ne=Total number of essentials (2) for each practice, CVR=Content validity ratio, CVRcrit=Minimum value for acceptance based on
1025
+ binomial probabilities for panel size
1026
+ Table 9: Validation of overall integrated classroom yoga module module (n=21)
1027
+ Overall rating of Yoga module
1028
+ ne
1029
+ N/2
1030
+ CVR (ne‑N/2)/N/2
1031
+ CVRcrit
1032
+ Will Yoga module achieve objective
1033
+ Can achieve objective
1034
+ 16
1035
+ 10.5
1036
+ 0.524
1037
+ 0.429
1038
+ Yes
1039
+ n=Total number of panelists, ne=Total number of essentials (2) for each practice, CVR=Content validity ratio, CVRcrit=Minimum value for acceptance based on
1040
+ binomial probabilities for panel size
1041
+ Sinha, et al.: Validation of integrated classroom yoga module
1042
+ Journal of Education and Health Promotion | Volume 10 | April 2021
1043
+ 9
1044
+ Stroop color‑word naming task
1045
+ The paired sample t‑test was associated with
1046
+ statistically significant differences in postintervention
1047
+ means compared to preintervention means with
1048
+ medium‑to‑large effect sizes for all three scores namely
1049
+ word, color and color‑word.
1050
+ • Word score: T  (48) = 5.41, P  =  0.001, Cohen’s
1051
+ d = 0.77
1052
+ • Color score: T (48) = 4.24, P = 0.001, Cohen’s d = 0.61
1053
+ • Color‑word score: T (48) = 4.39, P = 0.001, Cohen’s
1054
+ d = 0.63.
1055
+ Rosenberg self‑esteem scale
1056
+ The paired sample t‑test was associated with a
1057
+ statistically significant difference in postintervention
1058
+ mean compared to preintervention mean with small
1059
+ effect size.
1060
+ t (48) = 2.75, P = 0.008, Cohen’s d = 0.39.
1061
+ The paired sample t‑test was associated with statistically
1062
+ insignificant effect for the following variables:
1063
+ WHO‑5 well‑being index
1064
+ • t (48) = 0.63, P = . 532, Cohen’s d = 0.09.
1065
+ SCPI:
1066
+ • Sattva score: T (48) = 0.07, P = 0.947., Cohen’s d = 0.01
1067
+ • Rajas score: T (48) = 1.92, P = 0.061, Cohen’s d = 0.27
1068
+ • Tamas score: T (48) = 1.88, P = 0.067, Cohen’s d = 0.27.
1069
+ Summary of results of the pilot study
1070
+ The yoga intervention with ICYM gave statistically
1071
+ significant differences in means for physical fitness,
1072
+ cognitive performance and self‑esteem variables. The
1073
+ effect sizes ranged from small to medium in physical
1074
+ fitness measures, medium to large in the cognitive
1075
+ performance measure and small in the measure of
1076
+ self‑esteem. The differences in means for emotional
1077
+ well‑being and child personality characteristic variables
1078
+ were insignificant. It can be concluded that ICYM
1079
+ is feasible in improving physical fitness, cognitive
1080
+ performance, and self‑esteem [Tables 10 and 11].
1081
+ Discussion
1082
+ Traditional literature on yoga makes a compelling
1083
+ case for its inclusion in education. It is seen as
1084
+ self‑transformational impacting every facet of the
1085
+ personality to build intelligence, personality, and
1086
+ character. Modern research lends support to the claims
1087
+ made by traditional texts. Despite mounting evidence,
1088
+ yoga finds it difficult to get included in the school
1089
+ curriculum in any meaningful manner. The stated
1090
+ barriers are a paucity of time and need for resources.
1091
+ The aim of this study was to develop a validated short
1092
+ duration (12 min) ICYM for benefiting school children
1093
+ in physical fitness, cognitive performance, self‑esteem,
1094
+ emotional well‑being and personality characteristic
1095
+ variables. It was hypothesized that a short duration ICYM
1096
+ would solve the problem of time and resource and could
1097
+ potentially be included in the daily school schedule.
1098
+ Current studies on classroom yoga have tested mostly
1099
+ nonstandard yoga module designs, provided limited
1100
+ details of the intervention or suffered from sub‑optimal
1101
+ days per week of practice. An uncontrolled pilot study
1102
+ by Butzer et al.[48] used a 30‑min classroom yoga module
1103
+ practiced once a week. A study by Chen and Pauwels[49]
1104
+ Table 10: Age and gender of pilot sample (n=49)
1105
+ Characteristic
1106
+ Number
1107
+ Age (years)
1108
+ 13.63 (1.014)
1109
+ Age range
1110
+ 12‑16
1111
+ Gender ratio (B:G)
1112
+ 23:26
1113
+ Age is group mean (SD). SD: Standard deviation
1114
+ Table 11: Variables of scales tested: Paired sample t‑test
1115
+ Variable
1116
+ n=49
1117
+ Pre
1118
+ Post
1119
+ t
1120
+ P
1121
+ Cohen’s d
1122
+ EUROFIT physicalfitness testing battery
1123
+ Flamingo balance test
1124
+ 7.37 (6.366)
1125
+ 5.12 (5.270)
1126
+ 3.03
1127
+ 0.004
1128
+ 0.43
1129
+ Sit and reach flexibility test
1130
+ 13.08 (4.983)
1131
+ 14.94 (6.105)
1132
+ 2.52
1133
+ 0.015
1134
+ 0.36
1135
+ Sit ups trunk strength test
1136
+ 19.18 (4.777)
1137
+ 21.12 (5.540)
1138
+ 2.55
1139
+ 0.014
1140
+ 0.36
1141
+ 10 × 5 m shuttle run agility test
1142
+ 15.79 (1.964)
1143
+ 16.33 (1.527)
1144
+ 2.61
1145
+ 0.012
1146
+ 0.37
1147
+ Stroop color ‑ word naming task
1148
+ Word score
1149
+ 92.92 (13.156)
1150
+ 98.59 (13.233)
1151
+ 5.41
1152
+ 0.001
1153
+ 0.77
1154
+ Color score
1155
+ 58.53 (11.616)
1156
+ 65.82 (9.901)
1157
+ 4.24
1158
+ 0.001
1159
+ 0.61
1160
+ Color ‑ word score
1161
+ 32.14 (10.454)
1162
+ 37.51 (9.520)
1163
+ 4.39
1164
+ 0.001
1165
+ 0.63
1166
+ Rosenberg self‑ esteem scale
1167
+ 27.78 (3,454)
1168
+ 29.10 (3.435)
1169
+ 2.75
1170
+ 0.008
1171
+ 0.39
1172
+ WHO‑5 well‑being index
1173
+ 16.59 (4.286)
1174
+ 17.00 (3.953)
1175
+ 0.63
1176
+ 0.532
1177
+ 0.09
1178
+ Sushruta child personality inventory
1179
+ Sattva Score
1180
+ 13.63 (2.118)
1181
+ 13.65 (1.877)
1182
+ 0.07
1183
+ 0.947
1184
+ 0.01
1185
+ Rajas Score
1186
+ 8.82 (2.297)
1187
+ 8.29 (2.000)
1188
+ 1.92
1189
+ 0.061
1190
+ 0.27
1191
+ Tamas Score
1192
+ 6.94 (2.025
1193
+ 6.35 (1.964)
1194
+ 1.88
1195
+ 0.067
1196
+ 0.27
1197
+ Pre‑ and Post are Group Means (SD). SD=Standard deviation
1198
+ Sinha, et al.: Validation of integrated classroom yoga module
1199
+ 10
1200
+ Journal of Education and Health Promotion | Volume 10 | April 2021
1201
+ used a 5‑15 min yoga‑based activity module. Mische
1202
+ Lawson, Cox and Blackwell studied a 10‑min yoga‑based
1203
+ reflex integration module.[50] The current research on
1204
+ short‑duration classroom yoga is clearly inadequate.
1205
+ There is a need for a methodologically sound study with
1206
+ a validated short duration classroom yoga module.
1207
+ ICYM was designed based on a thorough review of
1208
+ traditional yoga literature. The module integrated
1209
+ asanas  (physical postures), pranayama  (breathing
1210
+ exercises), dhyana  (meditative practice), and
1211
+ mantra (chanting). The module was validated by yoga
1212
+ experts. The analysis tool used was Lawshe’s CVR
1213
+ formula. Only practices rated essential were included
1214
+ in the final module. The entire module was also rated
1215
+ essential by the experts. The methodology used in the
1216
+ module validation phase of this study was consistent
1217
+ with earlier researches on yoga module development
1218
+ and validation. Isha et al.,[51] developed and validated
1219
+ a yoga module for heart disease. A study by Kakde
1220
+ et al.,[52] validated a yoga module on Parkinson’s disease.
1221
+ Patil et al.[53] developed and validated a yoga module for
1222
+ chronic lower back pain. A yoga module for children
1223
+ with intellectual disabilities was validated by Pise et al.,[54]
1224
+ The pilot study was conducted in an urban campus of the
1225
+ multi‑campus Samsidh Mount Litera Zee School group
1226
+ in Bengaluru, India (n = 49). It found that the module
1227
+ was well accepted by both teachers and students. There
1228
+ was no problem in practicing the module in the limited
1229
+ spaces of the classroom environment. A paired sample
1230
+ t‑test showed that the differences in postintervention
1231
+ means compared to preintervention means were
1232
+ significant for physical fitness, cognitive performance
1233
+ and self‑ 
1234
+  esteem variables but insignificant for emotional
1235
+ well‑being and child personality variables. The effect
1236
+ sizes ranged from small to medium in physical fitness
1237
+ measures, medium to large in the cognitive performance
1238
+ measure and smallin the measure of self‑esteem. It was
1239
+ concluded that ICYM has a statistically significant impact
1240
+ on physical fitness, cognitive performance and self‑esteem
1241
+ measures of school children. These 
1242
+  findings  corroborate
1243
+ earlier researches on the effect of yoga on physical
1244
+ fitness, cognitive performance and self‑esteem although
1245
+ with longer duration yoga modules. Two randomized
1246
+ controlled Indian studies conducted on school children
1247
+ found that integrated yoga practice improved physical
1248
+ fitness as measured by the EUROFIT testing battery.
1249
+ Improved BMI, speed, balance and strength were
1250
+ reported in one study.[4] Improved balance, reaction
1251
+ time, flexibility, strength, and agility were reported in the
1252
+ other study.[14] Two Indian studies with school children
1253
+ reported improvement in executive function as a result
1254
+ of yoga intervention. Purohit and Pradhan[55] reported
1255
+ significant differences in the yoga group for Stroop
1256
+ Color‑Word Task, Digit Span Test and part‑A of TMT.
1257
+ A study by Telles et al.,[4] found that yoga intervention
1258
+ improved executive function as measured by the Stroop
1259
+ Color‑Word task. Bhardwaj and Agrawal[29] assessed the
1260
+ effect of yoga on the level of self‑esteem in preadolescents
1261
+ school‑going children in a randomized controlled study.
1262
+ The scale used was the Indian adaptation of Battle’s
1263
+ self‑esteem inventory for children. The yoga group
1264
+ showed a significant increase in the level of overall,
1265
+ general and social self‑esteem. In another study with
1266
+ school children, Sethi et al.,[56] showed a significant
1267
+ increase in self‑esteem scores.
1268
+ The methodology used in the pilot phase of the study was
1269
+ consistent with earlier researches that tested feasibility
1270
+ of customized yoga modules. Bhat et al.,[57] conducted
1271
+ a pilot study for a yoga module to treat Obsessive
1272
+ compulsive disorder with 17 patients. Patil et al.[53] tested
1273
+ the feasibility of a module for chronic lower back pain
1274
+ with 12 patients. A module for depression was tested
1275
+ with 7 patients.[58] Hariprasad et al.[59] conducted a pilot
1276
+ study on a module for the elderly with 10 elders.
1277
+ The present study is unique since it has developed
1278
+ a validated school‑based short duration classroom
1279
+ yoga module. The interventions used in earlier studies
1280
+ were nonstandard. The strengths of the study are (i)
1281
+ the ICYM was developed methodically based on
1282
+ ancient and contemporary yoga literature; (ii) it was
1283
+ an integrated module incorporating physical postures,
1284
+ breathing practices, meditative practices, chanting and
1285
+ affirmation; (iii) The selected practices were validated
1286
+ by a sufficient number of subject matter experts and
1287
+ the responses were analyzed using a sound statistical
1288
+ tool; (iv) and importantly the validated module was
1289
+ subjected to a pilot study using a paired sample pre–post
1290
+ measurement design. The pilot study found that the
1291
+ module was efficacious in impacting physical fitness,
1292
+ cognitive performance, and self‑esteem variables.
1293
+ The weaknesses of the study were: (i) the sample size
1294
+ of the pilot study was small (n = 49); (ii) the period
1295
+ of intervention was 1 month, which is short; (iii) No
1296
+ follow‑up study was conducted to ascertain long‑term
1297
+ benefits and (iv) the module was tested only with high
1298
+ school children. Its effect on smaller children is thus
1299
+ unknown. Future studies could be undertaken using a
1300
+ randomized control trial design with larger sample size
1301
+ and a longer period of intervention. The module could
1302
+ be tested with smaller children to understand its efficacy
1303
+ across age groups.
1304
+ Acknowledgments
1305
+ This study was a part of one of the author’s Ph.D., thesis.
1306
+ The study was self‑funded and there was 
1307
+  no  conflict
1308
+ of interest. We would like to acknowledge the
1309
+ willing cooperation of the Samsidh Mount Litera Zee
1310
+ School management, principal, teachers, staff, and
1311
+ Sinha, et al.: Validation of integrated classroom yoga module
1312
+ Journal of Education and Health Promotion | Volume 10 | April 2021
1313
+ 11
1314
+ the 
1315
+  enthusiastic students. Without their cooperation,
1316
+ this study would not have been possible.
1317
+ Financial support and sponsorship
1318
+ Nil.
1319
+ Conflicts of interest
1320
+ There are no conflicts of interest.
1321
+ References
1322
+ 1.
1323
+ Niranjanananda S. Yoga Education for Children. Vol. 2., 2nd ed.
1324
+ Munger, India: Yoga Publication Trust; 2012.
1325
+ 2.
1326
+ Satyananda S. YogaEducation for Children; 1990. Vol. 1., 1st ed.
1327
+ Munger, India: Yoga Publications Trust; 2013.
1328
+ 3.
1329
+ Serwacki ML, Cook‑Cottone C. Yoga in the schools: A systematic
1330
+ review of the literature. Int J Yoga Therap 2012;22:101‑10.
1331
+ 4.
1332
+ Telles S, Singh N, Bhardwaj AK, Kumar A, Balkrishna A. Effect
1333
+ of yoga or physical exercise on physical, cognitive and emotional
1334
+ measures in children: A randomized controlled trial. Child
1335
+ Adolesc Psychiatry Ment Health 2013;7:37.
1336
+ 5.
1337
+ Karimi  N, Saadat‑Gharin  S, Tol  A, Sadeghi  R, Yaseri  M,
1338
+ Mohebbi B. A problem‑based learning health literacy intervention
1339
+ program on improving health‑promoting behaviors among girl
1340
+ students. J Educ Health Promot 2019;8:251.
1341
+ 6.
1342
+ Bayati T, Dehghan A, Bonyadi F, Bazrafkan L. Investigating
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+ the effect of education on health literacy and its relation to
1344
+ health‑promoting behaviors in health center. J Educ Health
1345
+ Promot 2018;7:127.
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1347
+ Tol  A, Tavassoli  E, Shariferad  GR, Shojaeezadeh  D.
1348
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1350
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+ 9.
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+ Ayre C, Scally AJ. Critical values for Lawshe’s content validity
1357
+ ratio: Revisiting the original methods of calculation. Meas Eval
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+ 10. Vivekananda S. The Complete Works of Swami Vivekananda.
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+ Vol. 1., 17th ed. Kolkata, India: Advaita Ashrama; 2012. p. 195‑305.
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+ 11. Muktibodhananda S. Hatha Yoga Pradipika. 3rd ed. Munger, India:
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+ Publications Trust; 2012.
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+ 14. Tejomayananda S. Svetasvatara Upanishad. 1st ed. Mumbai, India:
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+ Central Chinmaya Mission Trust; 2013.
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+ India: Yoga Publications Trust; 2009.
1374
+ 18. Nagarathna R, Nagendra HR. Integrated Approach of Yoga
1375
+ Therapy for Positive Health. 1st ed. Bangalore, India: Swami
1376
+ Vivekananda Yoga Prakashana; 2011.
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+ 19. Purohit SP, Pradhan B, Nagendra HR. Effect of yoga on EUROFIT
1378
+ physical fitness parameters on adolescents dwelling in an orphan
1379
+ home: A randomized control study. Vulnerable Child Youth Stud
1380
+ 2016;11:33‑46.
1381
+ 20. Raghuraj P, Nagarathna R, Nagendra HR, Telles S. Pranayama
1382
+ increases grip strength without lateralized effects. Indian J Physiol
1383
+ Pharmacol 1997;41:129‑33.
1384
+ 21. Telles S, Narendran S, Raghuraj P, Nagarathna R, Nagendra HR.
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+ Comparison of changes in autonomic and respiratory parameters
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+ of girls after yoga and games at a community home. Percept Mot
1387
+ Skills 1997;84:251‑7.
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+ 22. Shivakumar DP, Suthakar DS, Urs DS. Effect of Selected Yogic
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+ Exercises on Cardiovascular Endurance and Lung Capacity of
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+ Secondary School Children. Int J Eng Sci Comput 2016;6:7286‑9.
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+ 23. Kumar S. Effects of suryanamaskar on cardio vascular and
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+ respiratory parameters in school students. Recent Research in
1393
+ Science and Technology. 2011;28;3.
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+ 24. Dash M, Telles S. Yoga training and motor speed based on a finger
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+ tapping task. Indian J Physiol Pharmacol 1999;43:458‑62.
1396
+ 25. Shavanani  AB, Udupa  KA. Acute effect of Mukh bhastrika
1397
+ (a yogic bellows type breathing) on reaction time. Indian J Physiol
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+ Pharmacol 2003;47:297‑300.
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+ 26. Chaya MS, Nagendra H, Selvam S, Kurpad A, Srinivasan K.
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+ Effect of yoga on cognitive abilities in schoolchildren from a
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+ socioeconomically disadvantaged background: A randomized
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+ controlled study. J Altern Complement Med 2012;18:1161‑7.
1403
+ 27. Verma A, Shete SU, SinGhth AK. The effect of yoga practices
1404
+ on cognitive development in rural residential school children in
1405
+ India. Memory 2014;6:6‑24.
1406
+ 28. So KT, Orme‑Johnson DW. Three randomized experiments on the
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+ longitudinal effects of the Transcendental Meditation technique
1408
+ on cognition. Intelligence 2001;29:419‑40.
1409
+ 29. Bhardwaj AK, Agrawal G. Yoga practice enhances the level of
1410
+ self‑esteem in pre‑adolescent school children. Int J Phys Soc Sci
1411
+ 2013;3:189‑99.
1412
+ 30. Randal  C, Pratt  D, Bucci  S. Mindfulness and self‑esteem:
1413
+ A systematic review. Mindfulness 2015;6:1366‑78.
1414
+ 31. Das M, Deepeshwar S, Subramanya P, Manjunath NK. Influence
1415
+ of yoga‑based personality development program on psychomotor
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+ performance and self‑efficacy in school children. Front Pediatr
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+ 2016;4:62.
1418
+ 32. Bergen‑Cico D, Razza R, Timmins A. Fostering self‑regulation
1419
+ through curriculum infusion of mindful yoga: A pilot study of
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+ efficacy and feasibility. J Child Fam Stud 2015;24:3448‑61.
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+ 33. Bhardwaj PR, Mookherjee R, Bhardwaj AK. Self‑adjustment
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+ in school going adolescents following three months of
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+ comprehensive yoga program. Online J Multidiscip Res
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+ 2015;1:14‑21.
1425
+ 34. Noggle JJ, Steiner NJ, Minami T, Khalsa SB. Benefits of yoga
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+ for psychosocial well‑being in a US high school curriculum:
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+ A preliminary randomized controlled trial. J Dev Behav Pediatr
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+ 2012;33:193‑201.
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+ 35. Felver JC, Celis‑de Hoyos CE, Tezanos K, Singh NN. A systematic
1430
+ review of mindfulness‑based interventions for youth in school
1431
+ settings. Mindfulness 2016;7:34‑45.
1432
+ 36. Gusain R, Dauneria S. Shanmukhi mudra with pranayama has
1433
+ significant effect on anxiety level of children aged 12 to 13 years.
1434
+ Int J Phys Educ Sports Manage Yogic Sci 2016;6:17‑21.
1435
+ 37. Ferreira‑Vorkapic  C, Feitoza  JM, Marchioro  M, Simões J,
1436
+ Kozasa E, Telles S. Are there benefits from teaching yoga at
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+ schools? A systematic review of randomized control trials of
1438
+ yoga‑based interventions. Evid Based Complement Alternat Med
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+ 2015;2015:345835.
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+ 38. Patil SS, Nagendra HR. Effect of yoga personality development
1441
+ camp on the triguna in children. Voice Res 2014;3:19‑21.
1442
+ 39. Gurjar AA, Ladhake SA. Time‑frequency analysis of chanting
1443
+ Sanskrit divine sound “OM” mantra. Int J Comput Sci Netw Secur
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+ 2008;8:170‑5.
1445
+ 40. Harne BP, Tahseen AA, Hiwale AS, Dhekekar RS. Survey on Om
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+ meditation: Its effects on the human body and Om meditation as
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+ a tool for stress management. Psychol Thought 2019;12:1‑1.
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+ 41. Pradhan B, Derle SG. Comparison of effect of Gayatri Mantra
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+ and Poem Chanting on Digit Letter Substitution Task. Anc Sci
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+ Life 2012;32:89‑92.
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+ Sinha, et al.: Validation of integrated classroom yoga module
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+ 12
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+ Journal of Education and Health Promotion | Volume 10 | April 2021
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+ 42. Kemper HC, Van Mechelen W. Physical fitness testing of children:
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+ A European perspective. Pediatr Exerc Sci 1996;8:201‑14.
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+ 43. Jensen AR, Rohwer WD Jr. The Stroop color‑word test: A review.
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+ Acta Psychol (Amst) 1966;25:36‑93.
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+ 44. Rosenberg M. Rosenberg self‑esteem scale (RSE). Acceptance and
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+ commitment therapy. Meas Package 1965;61:18.
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+ 45. Topp CW, Østergaard SD, Søndergaard S, Bech P. The WHO‑5
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+ well‑being index: A systematic review of the literature. Psychother
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+ Psychosom 2015;84:167‑76.
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+ 46. Suchitra SP, Nagendra HR. A Self–Rating Ayurveda Scale to
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+ Measure the Manasika Prakrti of the Children. Global Journal of
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+ Medical Research 2014.
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+ 47. Deshpande S, Nagendra HR, Nagarathna R. A randomized control
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+ trial of the effect of yoga on Gunas (personality) and Self esteem
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+ in normal healthy volunteers. Int J Yoga 2009;2:13‑21.
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+ 48. Butzer B, Day D, Potts A, Ryan C, Coulombe S, Davies B, et al.
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+ Effects of a classroom‑based yoga intervention on cortisol and
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+ behavior in second‑ and third‑grade students: A pilot study.
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+ J Evid Based Complementary Altern Med 2015;20:41‑9.
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+ 49. Chen DD, Pauwels L. Perceived benefits of incorporating yoga
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+ into classroom teaching: Assessment of the effects of “yoga tools
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+ for teachers”. Adv Phys Educ 2014;4:138.
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+ 50. Mische Lawson LA, Cox J, Blackwell AL. Yoga as a classroom
1477
+ intervention for pre‑schoolers. J Occup Ther Sch Early Interv
1478
+ 2012;5:126‑37.
1479
+ 51. Isha S, Deshpande S, Ganpat TS, Nagendra HR. Yoga module for
1480
+ heart disease. J Mahatma Gandhi Inst Med Sci 2015;20:153.
1481
+ 52. Kakde N, Metri KG, Varambally S, Nagaratna R, Nagendra HR.
1482
+ Development and validation of a yoga module for Parkinson
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+ disease. Journal of Complementary and Integrative Medicine.
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+ 2017;14.
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+ 53. Patil  NJ, Nagarathna  R, Tekur  P, Patil  DN, Nagendra  HR,
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+ Subramanya P. Designing, validation, and feasibility of integrated
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+ yoga therapy module for chronic low back pain. Int J Yoga
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+ 2015;8:103‑8.
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+ 54. Pise V, Pradhan B, Gharote MM. Validation of yoga module
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+ for children with intellectual disabilities. Ind Psychiatry J
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+ 2017;26:151‑4.
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+ 55. Purohit SP, Pradhan B. Effect of yoga program on executive
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+ functions of adolescents dwelling in an orphan home:
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+ A randomized controlled study. J Tradit Complement Med
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+ 2017;7:99‑105.
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+ 56. Sethi JK, Nagendra HR, Sham Ganpat T. Yoga improves attention
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+ and self‑esteem in underprivileged girl student. J Educ Health
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+ Promot 2013;2:55.
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+ 57. Bhat S, Varambally S, Karmani S, Govindaraj R, Gangadhar BN.
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+ Designing and validation of a yoga‑based intervention for
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+ obsessive compulsive disorder. Int Rev Psychiatry 2016;28:327‑33.
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+ Gangadhar BN. Development and feasibility of yoga therapy
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+ module for out‑patients with depression in India. Indian J
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subfolder_0/Does short-term lemon honey juice fasting have effect on lipid profile and body composition in healthy individuals..txt ADDED
@@ -0,0 +1,443 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Short communication
2
+ Does short-term lemon honey juice fasting have effect on lipid profile
3
+ and body composition in healthy individuals?
4
+ Prashanth Shetty a, A. Mooventhan b, *, Hongasandra Ramarao Nagendra c
5
+ a Department of Nutrition and Herbology, SDM College of Naturopathy and Yogic Sciences and Hospital, Ujire, India
6
+ b Department of Research and Development, S-VYASA University, Bengaluru, Karnataka, India
7
+ c S-VYASA University, Bengaluru, Karnataka, India
8
+ a r t i c l e i n f o
9
+ Article history:
10
+ Received 8 April 2015
11
+ Received in revised form
12
+ 10 May 2015
13
+ Accepted 18 May 2015
14
+ Available online 18 May 2016
15
+ Keywords:
16
+ Body composition
17
+ Fasting
18
+ Lemon honey juice
19
+ Lipid profile
20
+ a b s t r a c t
21
+ Fasting is one of the fundamental treatments of naturopathy. Use of lemon and honey for various me-
22
+ dicinal purposes were documented since ancient days but there is a lack of evidence on short-term
23
+ effects of lemon honey juice fasting (LHJF). Hence, we aim at evaluating the short-term effect of LHJF
24
+ on lipid profile and body composition in healthy individuals. A total of 50 healthy subjects were recruited
25
+ and they received 300-ml of LHJ, 4 times a day for four successive days of fasting. Assessments were
26
+ performed before and after the intervention. Statistical analysis was performed by student's paired t-test
27
+ with the use of Statistical Package for the Social Sciences (SPSS) version-16. Our study showed significant
28
+ reduction in weight, body mass index (BMI), fat mass (FM), free FM (FFM), and total serum triglycerides
29
+ (TSTGs) with insignificant reduction in fat percentage and total serum cholesterol compared to baseline.
30
+ Within group analysis of females showed similar results, unlike males. Our results suggest that LHJF may
31
+ be useful for reduction of body weight, BMI, FM, FFM, and TSTG in healthy individuals, which might be
32
+ useful for the prevention of obesity and hypertriglyceridemia.
33
+ © 2016 Transdisciplinary University, Bangalore and World Ayurveda Foundation. Publishing Services by
34
+ Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/
35
+ licenses/by-nc-nd/4.0/).
36
+ 1. Introduction
37
+ Fasting is an important treatment modality of naturopathy,
38
+ based on providing rest to the digestive system, diverting vital en-
39
+ ergy otherwise utilized to digest food to the process of healing body
40
+ and mind [1]. Plasma level of Vitamin-C status is inversely related to
41
+ body mass and degree of obesity [2]. Low plasma levels of Vitamin-C
42
+ are reported to be associated with the increased body mass index
43
+ (BMI), central fat distribution, increased all-cause mortality, the risk
44
+ of myocardial infarction, and gallbladder disease [3]. Whereas
45
+ increased Vitamin-C intake was reported to be associated with
46
+ higher high-density lipoprotein cholesterol (HDL-C) levels in
47
+ women and prevention of coronary heart disease (CHD) [4].
48
+ The antioxidant content of honey is found to be equivalent to
49
+ that of the fruits and vegetables [5] and helps reduce lipids in
50
+ normal as well as hyperlipidemic individuals [6]. Lemon honey
51
+ juice fasting (LHJF) is a commonly used treatment modality in
52
+ naturopathic hospitals in obesity, hypertriglyceridemia, dyslipide-
53
+ mia, alcoholic liver disorders, etc. but there is a lack of evidence
54
+ showing its effects on body composition and lipid profile, especially
55
+ in short interval. This preliminary study aims at evaluating the
56
+ short-term physiological changes of LHJF on body composition,
57
+ total serum triglycerides (TSTGs), and total serum cholesterol
58
+ (TSCH) in healthy individuals.
59
+ 2. Materials and methods
60
+ 2.1. Subjects
61
+ Fifty participants (32 females) aged 18e29 years were recruited
62
+ from a residential campus of the college of naturopathy and yogic
63
+ sciences. Study protocol was approved by the institutional ethics
64
+ committee and written informed consent was obtained from the
65
+ participants. Sample size was not calculated based on any previous
66
+ studies. Participants who met the following inclusion and exclusion
67
+ criteria were recruited for the study.
68
+ * Corresponding author. Department of Research and Development, S-VYASA
69
+ University, #19, Eknath Bhavan, Gavipuram Circle, Kempe Gowda Nagar, Bengaluru,
70
+ Karnataka, India.
71
+ E-mail address: [email protected] (A. Mooventhan).
72
+ Peer review under responsibility of Transdisciplinary University, Bangalore.
73
+ Contents lists available at ScienceDirect
74
+ Journal of Ayurveda and Integrative Medicine
75
+ journal homepage: http://elsevier.com/locate/jaim
76
+ http://dx.doi.org/10.1016/j.jaim.2016.03.001
77
+ 0975-9476/© 2016 Transdisciplinary University, Bangalore and World Ayurveda Foundation. Publishing Services by Elsevier B.V. This is an open access article under the CC
78
+ BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
79
+ Journal of Ayurveda and Integrative Medicine 7 (2016) 11e13
80
+ 2.1.1. Inclusion criteria
81
+ Both genders, willing to participate in the study.
82
+ 2.1.2. Exclusion criteria
83
+ Participants with a history of any systemic diseases or regular
84
+ medication for any disease; females during menstruation and
85
+ pregnancy; active in any exercise/sports program.
86
+ 2.2. Study design
87
+ This was a single group study with pre- and post-design. In this
88
+ preliminary study, baseline assessments were done (n ¼ 50) before
89
+ the intervention. Forty-four participants completed the study and
90
+ contributed to the second assessment after 4-day of intervention.
91
+ The reason for dropouts in study group (n ¼ 6) was unwillingness to
92
+ continue fasting due to personal problem (n ¼ 5) and abdominal
93
+ pain (n ¼ 1).
94
+ 2.3. Assessments
95
+ Assessments were done before and after 4-day of intervention.
96
+ Body composition was measured using TANITA body composition
97
+ analyzers SC-330 (Japan) which is an automatic instrument.
98
+ TANITA is used to measure body composition especially when
99
+ monitoring modest changes in fat [7]. The measurement was taken
100
+ by asking the participants to stand barefoot and erect on the foot
101
+ plate of the analyzer. TSTG and TSCH were measured by an insti-
102
+ tutionally qualified and well experienced technician with the use of
103
+ BA-4545 semi-auto biochemistry analyzers (India).
104
+ 2.4. Intervention
105
+ Participants were asked to gather in the hall, where fasting
106
+ therapy was administered. To prepare and during fasting, the par-
107
+ ticipants were kept away from daily routine to avoid interference
108
+ by thoughts and emotions. The participants received 300-ml of LHJ
109
+ (half lemon and a teaspoon of honey with 290-ml of water), 4-times
110
+ (8.00e8.30-am, 11.30e12.00-am, 3.00e3.30-pm, and 6.30e7.00-
111
+ pm) a day for four successive days of fasting [8]. The participants
112
+ were staying together in allotted hall under observation from 6 am
113
+ to 8 pm and then asked to go back to their residential hostel and
114
+ kept under observation. We used Western Ghats of Karnataka
115
+ (Dharmasthala) honey, which is dark yellow color multifloral
116
+ honey, has mixed flavor and aroma. Its physiochemical analysis
117
+ was: pH ¼ 3.48, ash (%) ¼ 0.60, moisture (%) ¼ 15.54, acidity (meq/
118
+ kg) ¼ 20.0, total sugar (%) ¼ 75, protein (mg/g) ¼ 0.80, phenol (mg/
119
+ g) ¼ 0.67, alkaloid (%) ¼ 10.6. This honey was reported to have good
120
+ quality and can be used in traditional medicine [9]. Drinking water
121
+ (whenever thirsty) was allowed during the fasting period, and the
122
+ participants were instructed to avoid any vigorous physical activ-
123
+ ities to avoid the risk of hypoglycemia [10]. On day-5, the fast was
124
+ broken with 300-ml of sweet lime juice (morning) followed by fruit
125
+ diet (papaya 200-g) at afternoon, raw diet (sprouts 50-g and raw
126
+ vegetables 100-g, and fruit salad 100-g) at night, and normal
127
+ routine boiled diet from the next day [8].
128
+ 2.5. Data analysis
129
+ Data were statistically analyzed using SPSS for Windows,
130
+ Version 16.0. Chicago, SPSS Inc. Descriptive analysis was done for
131
+ demographic variables of the study group (n ¼ 44) and sub-groups
132
+ (male [n ¼ 14] and female [n ¼ 30]). Student's paired samples t-test
133
+ was performed to analyze baseline and post assessments of both
134
+ study-group and sub-groups. P < 0.05 was considered as significant.
135
+ 3. Results
136
+ Of 50 participants, 44 successfully completed the study. Data
137
+ assessment was done before and after intervention. Demographic
138
+ variables were age in years (both genders [20.68 ± 1.95], male
139
+ [20.71 ± 1.59], female [20.67 ± 2.12]), and height in centimeters
140
+ (both genders [162.43 ± 8.45], male [171.79 ± 6.74], female
141
+ [158.07 ± 4.86]). Baseline and post assessments of study-group
142
+ (n ¼ 44) and sub-group (male [n ¼ 14] and female [n ¼ 30]) are
143
+ in Tables 1 and 2, respectively.
144
+ Our study showed significant reduction in weight, BMI, fat mass
145
+ (FM), free FM (FFM), muscle mass (MM), total body water (TBW),
146
+ and TSTGs in study-group compared to baseline (Table 1). In sub-
147
+ group analysis, significant reduction in weight, BMI, FM, FFM,
148
+ MM, TBW, and TSTG in females were observed similar to study
149
+ group, whereas in males, significant reduction was observed only in
150
+ weight, BMI, FFM, and MM (Table 1). Though there were no sig-
151
+ nificant reductions in fat percentage and TSCH, a trend toward
152
+ reduction was observed (Tables 1 and 2).
153
+ 4. Discussion
154
+ Our study showed a significant reduction in weight, BMI, FM,
155
+ FFM, MM, TBW, and TSTG in study-group compared to baseline.
156
+ Significant reduction in weight and BMI might attribute reduction
157
+ of FM and FFM during fasting. Reduction in weight might possibly
158
+ be due to LHJ as well, due to its Vitamin-C content, which was
159
+ shown to have an association with weight loss [2]. Reduction in
160
+ FM (significant) and fat% (insignificant) and TSTG (significant)
161
+ compared to baseline indicates fat utilization during fasting
162
+ because adipose tissue triglyceride mobilization during fasting is
163
+ an important adaptive response and it is the major source of
164
+ body's energy during food deprivation. This result might be
165
+ attributed to the effect of fasting on plasma insulin concentration
166
+ which was reported to have an inverse correlation to antilipolytic
167
+ activity in adipose tissue during fasting [11] or due to the effect of
168
+ Vitamin-C, an essential factor for biosynthesis of carnitine, useful
169
+ for subsequent fat oxidation by shuttling long chain fatty acids
170
+ across the mitochondrial membrane [2] or due to the effect of
171
+ honey, which has lipid-lowering property in normal and hyper-
172
+ lipidemic participants [6].
173
+ Significant reduction in FFM such as MM and TBW indicates the
174
+ utilization of muscle tissues and body fluids for energy requirement
175
+ during the latter period of fasting where normal food intake was
176
+ restricted. Though normal food intake was restricted, none of the
177
+ participants reported any adverse effects except mild tiredness and
178
+ mild giddiness in few subjects, which indicates the safety of short-
179
+ term LHJF among healthy individuals.
180
+ Table 1
181
+ Baseline and post assessment of study group (n ¼ 44) (Students paired-t-test).
182
+ Variables
183
+ Baseline
184
+ Post treatment
185
+ t
186
+ P
187
+ Weight (kg)
188
+ 54.28 ± 12.93
189
+ 52.11 ± 12.65
190
+ 13.334
191
+ <0.001
192
+ BMI (kg/m2)
193
+ 20.46 ± 3.57
194
+ 19.64 ± 3.54
195
+ 11.749
196
+ <0.001
197
+ Fat (%)
198
+ 17.26 ± 8.30
199
+ 16.69 ± 8.97
200
+ 1.565
201
+ 0.125
202
+ FM (kg)
203
+ 9.93 ± 7.46
204
+ 9.33 ± 7.84
205
+ 2.999
206
+ <0.01
207
+ FFM (kg)
208
+ 44.35 ± 7.68
209
+ 42.78 ± 7.30
210
+ 6.337
211
+ <0.001
212
+ MM (kg)
213
+ 42.10 ± 7.32
214
+ 40.60 ± 6.94
215
+ 6.300
216
+ <0.001
217
+ TBW (kg)
218
+ 31.16 ± 6.08
219
+ 30.09 ± 6.05
220
+ 5.758
221
+ <0.001
222
+ TSTG (mg/dL)
223
+ 95.50 ± 30.65
224
+ 78.18 ± 20.44
225
+ 3.889
226
+ <0.001
227
+ TSCH (mg/dL)
228
+ 147.77 ± 24.91
229
+ 143.07 ± 23.63
230
+ 1.646
231
+ 0.107
232
+ All values are as mean ± SD. BMI: Body mass index, FM: Fat mass, FFM: Free fat mass,
233
+ MM: Muscle mass, TBW: Total body water, TSTG: Total serum triglycerides, TSCH:
234
+ Total serum cholesterol, SD: Standard deviation.
235
+ P. Shetty et al. / Journal of Ayurveda and Integrative Medicine 7 (2016) 11e13
236
+ 12
237
+ Total serum cholesterol reduced (not statistically significant)
238
+ compared to baseline, which indicates LHJF may be useful to
239
+ maintain TSCH level. This result is supported by a previous study on
240
+ the administration of ascorbic acid in individuals with TSCH level
241
+ <200 mg/dl, where it did not produce the consistent effect [4].
242
+ Vitamin-C accounted for 35e75% of antioxidant power of food
243
+ [12] and thus was shown to have protective effect on lipid-peroxide
244
+ induced endothelial injury [13] and oxidative damage which are
245
+ believed to play a key role in cardiovascular disease, cancer initia-
246
+ tion, inflammatory diseases, neurologic disorders, and aging pro-
247
+ cess in general [12].
248
+ In sub-group analysis reduction in variables such as FM, TBW,
249
+ and TSTG were observed in both genders, but were significant only
250
+ in females, indicating LHJF might be more beneficial to females
251
+ than males in reducing FM and TSTG, which in turn might be useful
252
+ for prevention of major diseases such as obesity, hypertension, and
253
+ other cardiovascular diseases. The previous studies on the intake of
254
+ Vitamin-C in American men and women appeared to benefit only
255
+ women [13,14] and were associated with a reduced risk of death
256
+ from CHDs in Finnish women and not in men [13,15]. These evi-
257
+ dences support the gender difference results of this study.
258
+ 4.1. Limitations of the study
259
+ We did not measure HDL, LDL to obtain complete lipid profile;
260
+ hormones such as plasma insulin and norepinephrine, which are
261
+ shown to play an important role in the lipolysis in various studies
262
+ [11]. Due to the absence of a control group, the result of our study
263
+ may not primarily be attributed to the effect of LHJ during fasting.
264
+ Disproportionate number of males with that of females could be of
265
+ the limitation.
266
+ 4.2. Strengths of the study
267
+ Intervention is cost effective and short duration of the inter-
268
+ vention makes it easily acceptable, adaptable, and feasible to
269
+ practice even at home. No serious adverse effect was found. The
270
+ intervention might possibly be used as a preventive measure for
271
+ the modern public health problems such as obesity, hyper-
272
+ triglyceridemia, etc. Further studies (randomized control trials)
273
+ with the larger sample size are required to warrant these effects
274
+ and to evaluate the mechanism behind the effect of LHJF on lipid
275
+ profile and body compositions, in healthy as well as in various
276
+ disease conditions.
277
+ 5. Conclusion
278
+ The result of our study suggests that 4-day of LHJF may be
279
+ considered as an effective and safe method in reducing body
280
+ weight, BMI, FM, and TSTG in healthy individuals, which might be
281
+ useful in prevention of obesity and hypertriglyceridemia.
282
+ Source of support
283
+ Nil.
284
+ Conflict of interest
285
+ None declared.
286
+ References
287
+ [1] Rastogi R. Current approaches of research in naturopathy: how far is its evi-
288
+ dence base? J Homeopath Ayurvedic Med 2012;1:107.
289
+ [2] Horowitz JF, Coppack SW, Paramore D, Cryer PE, Zhao G, Klein S. Effect of
290
+ short-term fasting on lipid kinetics in lean and obese women. Am J Physiol
291
+ 1999;276(2 Pt 1):E278e84.
292
+ [3] Johnston CS. Strategies for healthy weight loss: from vitamin C to the glycemic
293
+ response. J Am Coll Nutr 2005;24:158e65.
294
+ [4] Aasheim ET, Hofsø D, Hjelmesaeth J, Birkeland KI, Bøhmer T. Vitamin status in
295
+ morbidly obese patients: a cross-sectional study. Am J Clin Nutr 2008;87:
296
+ 362e9.
297
+ [5] Simon JA, Hudes ES. Relation of serum ascorbic acid to serum lipids and li-
298
+ poproteins in US adults. J Am Coll Nutr 1998;17:250e5.
299
+ [6] Hegazi AG, Abd El-Hady FK. Influence of honey on the suppression of human
300
+ low density lipoprotein (LDL) peroxidation (in vitro). Evid Based Complement
301
+ Altern Med 2009;6:113e21.
302
+ [7] Al-Waili NS. Natural honey lowers plasma glucose, C-reactive protein, ho-
303
+ mocysteine, and blood lipids in healthy, diabetic, and hyperlipidemic subjects:
304
+ comparison with dextrose and sucrose. J Med Food 2004;7:100e7.
305
+ [8] Wouters EJ, Van Nunen AM, Geenen R, Kolotkin RL, Vingerhoets AJ. Effects of
306
+ aquajogging in obese adults: a pilot study. J Obes 2010. pii: 231074.
307
+ [9] Naveen GH, Shetty P, Goutham MP, Ganesh PB, Chethan R, Sangram P. Effect of
308
+ naturopathic based fasting therapy on liver enzymes, electrolytes, fasting
309
+ blood glucose, weight and perceived stress among healthy individuals e a
310
+ randomized controlled trial. Int J Yoga Allied Sci 2014;3:103e11.
311
+ [10] Ramnath S, Venkataramegowda S. Physicochemical and pollen analysis of
312
+ western ghats honey of Karnataka, South India. Int J Sci Nat 2012;3:831e5.
313
+ [11] Al-Arouj M, Bouguerra R, Buse J, Hafez S, Hassanein M, Ibrahim MA, et al.
314
+ Recommendations for management of diabetes during Ramadan. Diabetes
315
+ Care 2005;28:2305e11.
316
+ [12] Johnston CS, Dancho CL, Strong GM. Orange juice ingestion and supplemental
317
+ vitamin C are equally effective at reducing plasma lipid peroxidation in
318
+ healthy adult women. J Am Coll Nutr 2003;22:519e23.
319
+ [13] Naidu KA. Vitamin C in human health and disease is still a mystery? an
320
+ overview. Nutr J 2003;2:7.
321
+ [14] Rimm EB, Stampfer MJ, Ascherio A, Giovannucci E, Colditz GA, Willett WC.
322
+ Vitamin E consumption and the risk of coronary heart disease in men. N Engl J
323
+ Med 1993;328:1450e6.
324
+ [15] Knekt P, Reunanen A, J€
325
+ arvinen R, Sepp€
326
+ anen R, Heli€
327
+ ovaara M, Aromaa A.
328
+ Antioxidant vitamin intake and coronary mortality in a longitudinal popula-
329
+ tion study. Am J Epidemiol 1994;139:1180e9.
330
+ Table 2
331
+ Baseline and post assessment of study group male (n ¼ 14) and female (n ¼ 30)
332
+ (Students paired-t-test).
333
+ Variables
334
+ Gender
335
+ Baseline
336
+ Post
337
+ treatment
338
+ t
339
+ P
340
+ Weight (kg)
341
+ Male
342
+ 62.48 ± 18.23
343
+ 60.10 ± 17.54
344
+ 9.804
345
+ <0.001
346
+ Female
347
+ 50.47 ± 7.17
348
+ 48.39 ± 7.35
349
+ 9.852
350
+ <0.001
351
+ BMI (kg/m2)
352
+ Male
353
+ 21.09 ± 5.22
354
+ 20.30 ± 5.02
355
+ 10.290
356
+ <0.001
357
+ Female
358
+ 20.17 ± 2.53
359
+ 1.934 ± 2.65
360
+ 8.599
361
+ <0.001
362
+ Fat (%)
363
+ Male
364
+ 12.80 ± 8.73
365
+ 11.58 ± 10.36
366
+ 1.211
367
+ 0.247
368
+ Female
369
+ 19.35 ± 7.35
370
+ 19.09 ± 7.26
371
+ 1.036
372
+ 0.309
373
+ FM (kg)
374
+ Male
375
+ 9.35 ± 11.03
376
+ 8.54 ± 12.11
377
+ 1.413
378
+ 0.181
379
+ Female
380
+ 10.20 ± 5.28
381
+ 9.71 ± 5.01
382
+ 3.932
383
+ <0.001
384
+ FFM (kg)
385
+ Male
386
+ 53.13 ± 7.83
387
+ 51.56 ± 6.15
388
+ 2.355
389
+ <0.05
390
+ Female
391
+ 40.27 ± 2.37
392
+ 38.68 ± 2.73
393
+ 7.688
394
+ <0.001
395
+ MM (kg)
396
+ Male
397
+ 50.45 ± 7.46
398
+ 48.94 ± 5.86
399
+ 2.388
400
+ <0.05
401
+ Female
402
+ 38.20 ± 2.25
403
+ 36.71 ± 2.60
404
+ 7.506
405
+ <0.001
406
+ TBW (kg)
407
+ Male
408
+ 38.14 ± 6.08
409
+ 37.32 ± 5.30
410
+ 1.620
411
+ 0.129
412
+ Female
413
+ 27.91 ± 1.93
414
+ 26.72 ± 2.17
415
+ 8.412
416
+ <0.001
417
+ TSTG (mg/dL)
418
+ Male
419
+ 100.57 ± 32.38
420
+ 83.71 ± 19.28
421
+ 1.842
422
+ 0.088
423
+ Female
424
+ 93.13 ± 30.08
425
+ 75.60 ± 20.76
426
+ 3.465
427
+ <0.01
428
+ TSCH (mg/dL)
429
+ Male
430
+ 153.14 ± 24.26
431
+ 147.57 ± 27.66
432
+ 0.804
433
+ 0.436
434
+ Female
435
+ 145.27 ± 25.22
436
+ 140.97 ± 21.70
437
+ 1.551
438
+ 0.132
439
+ All values are as mean ± SD. BMI: Body mass index, FM: Fat mass, FFM: Free fat mass,
440
+ MM: Muscle mass, TBW: Total body water, TSTG: Total serum triglycerides, TSCH:
441
+ Total serum cholesterol, SD: Standard deviation.
442
+ P. Shetty et al. / Journal of Ayurveda and Integrative Medicine 7 (2016) 11e13
443
+ 13
subfolder_0/EMOTIONAL IMPACT FOLLOWING THE TSUNAMI IN ENDOGENOUS PEOPLE AND MAILAND SETTLERS IN THE ANDAMAN ISLANDS.txt ADDED
@@ -0,0 +1,123 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ 70
2
+ LETTER TO THE EDITOR
3
+ A, Lalitha MK, et al. Surgical presentation of
4
+ melioidosis in India. Natl Med J India 1999;12:59­
5
+ 61.
6
+ 5. Jesudason MV, Anbarasu A, John TJ. Septicaemic
7
+ melioidosis in a tertiary care hospital in south India.
8
+ Indian J Med Res 2003;117:119-21.
9
+ Udayakumar Navaneethan,
10
+ A.C. Ramesh Kumar, G. Ravi
11
+ Postgraduate in Internal medicine,
12
+ Madras Medical College and
13
+ Govt Gen Hospital,
14
+ Chennai-3, India.
15
+ Correspondence
16
+ Dr. Navaneethan Udayakumar
17
+ Postgraduate in Internal medicine,
18
+ Madras Medical College and
19
+ Govt Gen Hospital,
20
+ Chennai-3, India.
21
+ E-mail: [email protected]
22
+ EMOTIONAL IMPACT
23
+ FOLLOWING THE TSUNAMI IN
24
+ ENDOGENOUS PEOPLE AND
25
+ MAINLAND SETTLERS IN THE
26
+ ANDAMAN ISLANDS
27
+ Sir,
28
+ A survey conducted a month after the
29
+ tsunami in December 2004 in the Andaman
30
+ islands compared the emotional impact and
31
+ coping in endogenous people (EP) and
32
+ second-generation mainland immigrants (ML;
33
+ from Tamil Nadu, Andhra Pradesh and West
34
+ Bengal), as the groups differed in (i) social
35
+ organization
36
+ (EP
37
+ constituting
38
+ close
39
+ communities under a ‘captain’, ML having the
40
+ family as the main (unit), and (ii) religion (EP
41
+ mainly Christians, ML mainly Hindus). The
42
+ groups were comparable with respect to
43
+ education, socio-economic status, age-range
44
+ (25 to 55 years), tsunami-related loss and
45
+ trauma (though this was not directly
46
+ measured). The immigrants constitute
47
+ approximately 70% of the population and are
48
+ well integrated. Out of 1800 persons
49
+ approached, 500 completed a survey of
50
+ symptoms and 68 completed an additional
51
+ survey of coping strategies. Of the 500, 54%
52
+ were endogenous people. Respondents rated
53
+ the intensity of four symptoms that are
54
+ commonly reported by disaster survivors,[1]
55
+ viz, fear, anxiety, disturbed sleep, and
56
+ sadness using a 10 cm analog scale.
57
+ The ML group had higher levels for all four
58
+ indicators (p<.001). The mean values and
59
+ standard deviations for ML versus EP group,
60
+ respectively were: (i) for fear: 5.7 ± 3.0 cm
61
+ versus 4.4 ± 2.9 cm; (ii) for anxiety: 6.2 ±
62
+ 2.9 cm versus 4.4 ± 2.8 cm; (iii) for disturbed
63
+ sleep: 5.0 ± 3.6 cm versus 3.9 ± 3.0 cm; and
64
+ (iv) for sadness: 7.2 ± 2.5 cm versus 5.5 ±
65
+ 2.8 cm.
66
+ Following a major disaster the coping
67
+ strategies used have an important effect on
68
+ physical and mental health.[2] An exploratory
69
+ analysis of coping strategies based on the
70
+ sub-sample of 68 showed comparable
71
+ numbers selected specific strategies as first
72
+ choice, viz. interpersonal contact or using
73
+ religious practices. The groups differed in
74
+ their second choice, the largest number of
75
+ the EP group selecting interpersonal contact
76
+ while the ML group selected denial
77
+ strategies, especially alcohol (p<.001,χ2).
78
+ These differences may have contributed to
79
+ the higher levels of distress in the ML
80
+ Indian J Med Sci, Vol. 60, No. 2, February 2006
81
+ 71
82
+ INDIAN JOURNAL OF MEDICAL SCIENCES
83
+ compared to the EP group, as the ‘stress
84
+ buffering’ effect of religious beliefs and social
85
+ support are recognized.[3] However other
86
+ factors may also have contributed, such as
87
+ previous traumatization, education, support
88
+ received, ways of expressing distress or
89
+ scoring the analog scales and individual
90
+ vulnerability.
91
+ This study showed that in the Andaman
92
+ Islands affected by the tsunami, people of
93
+ different origins had different coping
94
+ strategies and levels of distress, which may
95
+ be relevant for their rehabilitation. The ML
96
+ group may be in particular need of
97
+ intervention to reduce their distress and
98
+ improve their coping.
99
+ ACKNOWLEDGMENT
100
+ The study formed part of a project funded by the
101
+ Government of the Andaman and Nicobar Islands and
102
+ the state Government of Karnataka which is gratefully
103
+ acknowledged.
104
+ REFERENCES
105
+ 1. Silver SM, Iacono CU. Factor-analytic support for
106
+ DSM-III’s post-traumatic stress disorder for
107
+ Vietnam veterans. J Clin Psychol 1984;40:5-14.
108
+ 2. Scott MJ, Stradling SG. Counselling for post­
109
+ traumatic stress disorder. Sage Publications:
110
+ London; 2001.
111
+ 3. Lawler KA, Younger JW, Piferi RL, Jobe RL,
112
+ Edmondson KA, Jones WH. The unique effects of
113
+ forgiveness on health: an exploration of pathways.
114
+ J Behav Med 2005;28:157-67.
115
+ ShirleyTelles, Manoj Dash, Naveen K. V.
116
+ Swami Vivekananda Yoga Research Foundation,
117
+ Bangalore, India
118
+ Correspondence
119
+ Shirley Telles,
120
+ SVYASA, # 19, Eknath Bhavan,
121
+ K.G. Nagar, Bangalore 19, India
122
+ E-mail: [email protected]
123
+ Indian J Med Sci, Vol. 60, No. 2, February 2006
subfolder_0/Effect Of One Month Residential Yoga Program On Measuring The Positive And Negative Attitude ..txt ADDED
@@ -0,0 +1,641 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Voice of Research, Vol. 3 Issue 4, March 2015, ISSN 2277-7733 | 11
2
+ “Psychology Today” magazine, reports that the average person
3
+ generates 25,000 to 50,000 thoughts per day. Beginning in
4
+ 1952 with Norman Vincent Peale’s book, “The Power of
5
+ Positive Thinking,” a large school of thought has developed
6
+ around the idea that happiness and unhappiness are largely by
7
+ products of thoughts and that “negative thinking” results in a
8
+ variety of psychological and physiological disorders. The remedy,
9
+ according to these thinkers, is to exercise control over your
10
+ thoughts to achieve health, serenity, an enhanced sense of well-
11
+ being and increased personal effectiveness at work and at home.
12
+ Attitudes are organized collections of thoughts about a
13
+ particular issue. To think positively, you need to eliminate
14
+ certain negative thinking patterns that nearly everyone indulges
15
+ in at least some of the time. These include the four major
16
+ types of negative thinking filtering, personalizing, cadastres
17
+ prizing and polarizing. Filtering refers to psychologically
18
+ screening out the encouraging aspects of complex scenarios.
19
+ Personalizing means automatically blaming yourself every time
20
+ something bad happens. Cadastre phasing’s expecting the
21
+ worst possible outcome in any situation, and polarizing is a
22
+ type of black-and-white thinking that defines failure as any
23
+ result short of perfection
24
+ Emotion is a common component in persuasion, social
25
+ influence, and attitude change. Much of attitude research
26
+ emphasized the importance of affective or emotion
27
+ components. Emotion works hand-in-hand with the cognitive
28
+ process, or the way we think, about an issue or situation.
29
+ Emotional appeals are commonly found in advertising, health
30
+ campaigns and political messages. Recent examples include
31
+ no-smoking health campaigns and political campaign
32
+ advertising emphasizing the fear of terrorism. Attitudes and
33
+ attitude objects are functions of cognitive, affective and
34
+ cognitive components. Attitudes are part of the brain’s
35
+ associative networks, the spider-like structures residing in long
36
+ term memory that consist of affective and cognitive nodes.
37
+ By activating an affective or emotion node, attitude change
38
+ may be possible, though affective and cognitive components
39
+ tend to be intertwined. In primarily affective networks, it is
40
+ more difficult to produce cognitive counterarguments in the
41
+ resistance to persuasion and attitude change.
42
+ In terms of research methodology, the challenge for researchers
43
+ is measuring emotion and subsequent impacts on attitude.
44
+ Since we cannot see into the brain, various models and
45
+ measurement tools have been constructed to obtain emotion
46
+ and attitude information. Measures may include the use of
47
+ physiological cues like facial expressions, vocal changes, and
48
+ other body rate measures. For instance, fear is associated with
49
+ raised eyebrows, increased heart rate and increase body tension
50
+ Other methods include concept or network mapping, and
51
+ using primes or word cues in the era .
52
+ The effects of attitudes on behaviors is a growing research
53
+ enterprise within psychology. Icek Ajzen helped develop two
54
+ prominent theoretical approaches within this field: the theory
55
+ of reasoned action and, its theoretical descendant, the theory of
56
+ planned behavior. Both theories help explain the link between
57
+ attitude and behavior as a controlled and deliberative process.
58
+ Russell H. Fazio proposed an alternative theory called
59
+ “Motivation and Opportunity as Determinants” or MODE.
60
+ Fazio argues that motivation can modify our deliberative
61
+ attitude-related behavior, only if the opportunity presents itself.
62
+ Yoga suggests attitudes to cultivate for removing the mental and
63
+ emotional blocks that veil the joy of the true Self. Each of these
64
+ can be the subject of meditation and contemplation as well as
65
+ being practiced in daily life. Attitudes meditations are foundations
66
+ for the subtler meditations. Correlations were obtained between
67
+ scores on the. Yoga Attitude Scale and improvement in a group
68
+ of 20 psychoneurotic patients undertaking yoga therapy of 4-6
69
+ weeks duration. A significant positive correlation was found
70
+ between the improvement in social and vocational disability and
71
+ scores on the Yoga Attitude Scale at intake. However, during
72
+ treatment and follow-up, there was a significant change in the
73
+ attitude towards yoga - it became more positive.
74
+ Correlations were also performed between improvement and
75
+ change in attitude over the 5-month study period. Significant
76
+ positive correlation was seen only on personal distress.
77
+ EFFECT OF ONE MONTH RESIDENTIAL YOGA PROGRAM ON
78
+ MEASURING THE POSITIVE AND NEGATIVE ATTITUDE
79
+ Ashwini H. R.
80
+ Research Scholar, SVYAS University, Bangalore.
81
+ Sony Kumari
82
+ Assistant Professor, SVYAS University, Bangalore.
83
+ Abstract
84
+ The Effectiveness of One Month Residential Yoga Program on Measuring the Positive and Negative Attitude among 50 participants was
85
+ examined. The participants were divided into two groups -Yoga and Control group. Yoga Group comprising of both Male and Female attended one
86
+ month Residential yoga program where they followed a strict schedule of 10 hours per day. Result indicated that Yoga Program contributed
87
+ significantly in improving positive attitude and reducing in negative attitude in healthy volunteers. Positive thinking can lead to positive attitudes
88
+ and peace of mind. Much of your behavior depends on your attitudes. If your attitudes are negative, you can expect to be vulnerable to addictions
89
+ and psychosomatic disorders, and the resulting lack of focus and concentration may degrade every area of your life. A positive attitude can be
90
+ developed by monitoring and disciplining your thoughts on a moment-by-moment basis.
91
+ Keywords: yoga, attitude, psychology
92
+ YOGA AND ATTITUDE
93
+ Voice of Research
94
+ Volume 3, Issue 4
95
+ March 2015
96
+ ISSN 2277-7733
97
+ 12 | Voice of Research, Vol. 3 Issue 4, March 2015, ISSN 2277-7733
98
+ Improvement in the other symptoms of neurosis i.e. anxiety,
99
+ depression, features, vegetative symptoms of neurosis i.e.
100
+ anxiety, depression, features, vegetative symptoms and the
101
+ other neurotic features i.e. hysteria, obsessions-compulsions
102
+ and phobia did not show any relationship with the patient’s
103
+ attitude towards yoga.
104
+ Method
105
+ The Subjects in study were taken from one month Residential
106
+ yoga program and control Group. The subjects comprised of
107
+ 50 participants. 25(Yoga Group) participants both male and
108
+ Female aged 20 to 45 years. Control group comprised of 25
109
+ Participants Both Male and Female raged 22 to 45 Years.
110
+ Measure
111
+ Positive and Negative Affects Scale (PANAS) to assess these
112
+ specific emotional states in one Month Residential Yoga Program
113
+ Participants. It is taken in individuals before and after yoga.
114
+ Watson, Clark, and Tellegen (1988) developed the Positive
115
+ and Negative Affect Schedule (PANAS), which consists of
116
+ two 10-item scales for PA and NA, Respectively in addition to
117
+ the two original higher order scales the PANAS-X measures
118
+ 10 specific affects: Fear, Sadness, Guilt, Hostility, Shyness,
119
+ Surprise, Joviality, Self-Assurance, Attentiveness, and Serenity.
120
+ PANAS-X provides for mood measurement at two different
121
+ levels. That is personality and emotionality PANAS-X scales
122
+ shows significant discriminate validity when correlated with
123
+ peer-judgments.
124
+ Procedure
125
+ Om Meditation: a type of meditation using the syllable om
126
+ chanting mentally to achieve a state of alert full rest (Telles,
127
+ Nagarathna and Nagendra,(1995). The person seated in any
128
+ comfortable meditative posture goes on repeating the syllable
129
+ Om mentally leading to effortless flow of a single thought in
130
+ the mind.
131
+ Yoga practice: yoga practices formulated based on the
132
+ requirements of the patients developed by SVAMI
133
+ VIVEKANANDA
134
+ YOGA
135
+ ANUSANDHANA
136
+ SAMSTHANA YIC (One month residential Yoga
137
+ Instructed Course).
138
+ Pranayama: Pranayama is a state of voluntarily regulated
139
+ breathing while the mind is directed to the flow of breath
140
+ to the flow of breath or prana.A typical cycle of the slow
141
+ type breathing involves the phases of inhalation, exhalation;
142
+ there are different kinds of pranayama varying according to
143
+ the durations of the phases in the breathing cycles, and the
144
+ nostrils used.
145
+ Cyclic Meditation: This has included a combination of both
146
+ stimulating and relaxing or calming practices (Nagendra and
147
+ Nagarathna 1997) its basis from traditional text. Studies on
148
+ this meditation have shown that this technique, which is a
149
+ combination of yoga postures interspersed with relaxation,
150
+ reduces arousal more than relaxation alone
151
+ Trataka:One of theKriya (cleansing technique) mentioned in
152
+ yogic texts to remove impurities of the ophthalmic tract and
153
+ to attain mental stability (DHARANA).
154
+ Results & Discussion
155
+ Table 1
156
+ Means And SDs of Scores on The Measure of Emotional
157
+ Competence by Yoga And Control Groups Before and After
158
+ Intervention. This explains the comparison between pre and
159
+ post assessment on negative attitude of Experimental Group.
160
+ Note: Wilcoxon Test showed that amongst 10 negative
161
+ attitude ,Yoga group showed significant reduction in distressed
162
+ (p>0.05).
163
+ Table 2 - This explains the comparison between pre and post
164
+ assessment on positive attitude of Experimental Group.
165
+ Note: In within group comparison (Yoga group) Wilcoxon test
166
+ did not show any significant improvement in positive attitude
167
+ Table 3 - This explains the comparison between pre and post
168
+ assessment on negative attitude of group.
169
+ Variable
170
+
171
+ Mean=+SD
172
+ % change
173
+ of mean
174
+ P value
175
+ Afraid
176
+ Pre
177
+ Post
178
+ 2.231=+1.1066
179
+ 2.654=+1.3840
180
+ 15.93
181
+ 085
182
+ Scared
183
+ Pre
184
+ Post
185
+ 2.269=+1.1509
186
+ 2.731=+1.4576
187
+ 16.91
188
+ 171
189
+ Nervous
190
+ Pre
191
+ Post
192
+ 2.385=+1.2673
193
+ 2.538=+1.2722
194
+ 6.02
195
+ 596
196
+ jittery
197
+ Pre
198
+ Post
199
+ 2.231=+1.2746
200
+ 2.423=+1.2385
201
+ 0
202
+ 689
203
+ irritable
204
+ Pre
205
+ Post
206
+ 2.192=+1.2335
207
+ 2.846=+1.6172
208
+ 22.97
209
+ 130
210
+ hostel
211
+ Pre
212
+ Post
213
+ 2.731=+1.4016
214
+ 2.615=+1.2985
215
+ 4.43
216
+ 697
217
+ guilty
218
+ Pre
219
+ Post
220
+ 2.154=+1.3173
221
+ 2.269=+1.4016
222
+ 5.06
223
+ 718
224
+ ashamed
225
+ Pre
226
+ Post
227
+ 2.038=+.8237
228
+ 2.538=+1.5028
229
+ 19.70
230
+ 260
231
+ upset
232
+ Pre
233
+ Post
234
+ 2.577=+1.2704
235
+ 2.885=+1.657
236
+ 10.67
237
+ 307
238
+ distressed
239
+ Pre
240
+ Post
241
+ 2.577=+1.2704
242
+ 3.385=+1.3879
243
+ 23.87
244
+ 001*
245
+ Variable
246
+
247
+ Mean=+SD
248
+ % change
249
+ of mean
250
+ P
251
+ value
252
+ active
253
+ Pre
254
+ Post
255
+ 3.038=+.9992
256
+ 3.308=+1.1232
257
+ 8.88
258
+ 400
259
+ alert
260
+ Pre
261
+ Post
262
+ 3.115=+.9089
263
+ 2.923=+1.0554
264
+ 6.16
265
+ 380
266
+ attentive
267
+ Pre
268
+ Post
269
+ 2.923=+.7442
270
+ 3.000=+1.2000
271
+ 2.63
272
+ 783
273
+ determined
274
+ Pre
275
+ Post
276
+ 3.192=+.7494
277
+ 2.885=+1.1073
278
+ 9.61
279
+ 314
280
+ enthusiastic
281
+ Pre
282
+ Post
283
+ 3.000=+.9798
284
+ 3.192=+1.0961
285
+ 6.4
286
+ 445
287
+ excited
288
+ Pre
289
+ Post
290
+ 3.000=+1.0583
291
+ 2.885=+1.2434
292
+ 3.83
293
+ .824
294
+ inspired
295
+ Pre
296
+ Post
297
+ 3.000=+.9381
298
+ 3.231=+1.1767
299
+ 7.7
300
+ 385
301
+ interested
302
+ Pre
303
+ Post
304
+ 2.923=+1.0168
305
+ 3.346=+1.2944
306
+ 14.47
307
+ 119
308
+ proud
309
+ Pre
310
+ Post
311
+ 3.346=+1.0175
312
+ 2.923=+1.0168
313
+ 12.64
314
+ 491
315
+ strong
316
+ Pre
317
+ Post
318
+ 3.423=+.9454
319
+ 3.154=+1.2229
320
+ 7.85
321
+ 309
322
+ Variable
323
+
324
+ Mean=+SD
325
+ % change
326
+ of mean
327
+ P
328
+ value
329
+ Afraid
330
+ Pre
331
+ Post
332
+ 3.542=+1.3181
333
+ 2.792=+1.2151
334
+ 21.17
335
+ 023*
336
+ Scared
337
+ Pre
338
+ Post
339
+ 3.125=+1.4540
340
+ 2.958=+1.5737
341
+ 5.34
342
+ 655
343
+ YOGA AND ATTITUDE
344
+ Voice of Research, Vol. 3 Issue 4, March 2015, ISSN 2277-7733 | 13
345
+ Note: Within group comparison was done by using Wilcoxon
346
+ Test where the result showed significant improvement in the
347
+ attitude afraid in Control Group.
348
+ Table 4 - This explains the comparison between pre and post
349
+ assessment on positive attitude of group.
350
+ Note: Within group comparison was done by using Wilcoxon
351
+ Test where the result showed significant improvement in the
352
+ attitude active in Control Group.
353
+ Table 5 - This explains the comparison between the group
354
+ (Yoga and Control).MannWhitney (Between group)
355
+ Note: In between group comparison Yoga group showed
356
+ significant improvement in the negative attitude such as afraid,
357
+ nervous, irritable, ashamed and upset.
358
+ In a previous, open-armed observational study on 312
359
+ participants of a weeklong free yoga camp for promotion of
360
+ positive health through integrated yoga practices showed
361
+ significant reduction in negative affect and increase in positive
362
+ affect scores on modified version of PANAS questionnaire.;
363
+ The current study reveals that in a within group comparison
364
+ Yoga Group showed a significant reduction in negative attitude,
365
+ distressed (p> .001) whereas no changes was observed in positive
366
+ attitude.; In control group negative attitude afraid was reduced
367
+ significantly (p>.023) and positive attitude active, increased
368
+ significantly with p > .05.; In between group comparison yoga
369
+ group showed significant reduction in negative attitude such
370
+ afraid (p>.05), nervous (p>.05), irritable (p>.05), ashamed (p>
371
+ .05), and upset (p>.05).; In positive attitude result betweens
372
+ group did not show any significantly improved in yoga group
373
+ after one month of intervention.; Yoga intervention has shown
374
+ significant change in reducing negative attitd ude an improvement
375
+ in positive attitude in healthy volunteers.
376
+ Reference
377
+ Allport, G. W., Vernon, P. E., &Lindzey, G. (1960).
378
+ Eagly, A. H., &Chaiken, S. (2007). The advantages of an inclusive
379
+ definition of attitude. Social Cognition, 25(5), 582-602.
380
+ Kirill Zdorov. (2000). Mastering the Perverse: State Building
381
+ and Language” Purification” in Early Soviet Russia. Slavic
382
+ Review, 133-153.
383
+ Marano, H. E. (2004). A nation of wimps. Psychology
384
+ Today, 37(6), 58-70.
385
+ Forsyth, D. M., Poppe, K., Nash, V., Alarcon, R. D., & Kung,
386
+ S. (2010). Measuring changes in negative and positive
387
+ thinking in patients with depression. Perspectives in
388
+ psychiatric care, 46(4), 257-265.
389
+ Dillard, J. P., & Peck, E. (2000). Affect and Persuasion
390
+ Emotional
391
+ Responses
392
+ to
393
+ Public
394
+ Service
395
+ Announcements. Communication Research, 27(4), 461-495.
396
+ Ajzen, I., &Fishbein, M. (1977). Attitude-behavior relations:
397
+ A theoretical analysis and review of empirical
398
+ research. Psychological bulletin, 84(5), 888.
399
+ Mathew Anad , DrJagatheesanAlagesan , Dr S Prathap Effect
400
+ of Yoga Therapy in rehabilitation of drug Addicts
401
+ Volume ;2 issue;7 July 2013 ISSN No 2277-8160
402
+ Gupta, N., Khera, S., Vempati, R. P., Sharma, R., &Bijlani, R.
403
+ L. (2006). Effect of yoga based lifestyle intervention on
404
+ state and trait anxiety. Indian journal of physiology and
405
+ pharmacology, 50(1), 41.
406
+ Malathi, A., Damodaran, A. S. H. A., Shah, N. I. L. E. S. H., Patil,
407
+ N. E. E. L. A., & Maratha, S. R. I. K. R. I. S. H. N. A. (2000).
408
+ Effect of yogic practices on subjective well being. Indian journal
409
+ of physiology and pharmacology, 44(2), 202-206.
410
+ Bagozzi, R. P. (1993). An examination of the psychometric
411
+ properties of measures of negative affect in the PANAS-X scales.
412
+ Narasimhan, L., Nagarathna, R., &Nagendra, H. R. (2011). Effect
413
+ of integrated yogic practices on positive and negative emotions
414
+ in healthy adults.International journal of yoga, 4(1), 13.
415
+ Vadiraja, H. S., Rao, M. R., Nagarathna, R., Nagendra, H. R., Rekha,
416
+ M., Vanitha, N.&Rao, N. (2009). Effects of yoga program on
417
+ quality of life and affect in early breast cancer patients
418
+ undergoing adjuvant radiotherapy: a randomized controlled
419
+ trial. Complementary therapies in medicine, 17(5), 274-280.
420
+ Nagarathna R, Nagendra HR. 3rd ed. Bangalore: Swami
421
+ Vivekananda Yoga Prakashana; 2006. Integrated approach
422
+ of yoga therapy for positive health.
423
+ Nervous
424
+ Pre
425
+ Post
426
+ 3.500=+1.4446
427
+ 3.375=+1.6101
428
+ 3.57
429
+ 758
430
+ jittery
431
+ Pre
432
+ Post
433
+ 2.708=+1.5737
434
+ 2.708=+1.3667
435
+ 0
436
+ 951
437
+ irritable
438
+ Pre
439
+ Post
440
+ 3.333=+1.3726
441
+ 3.292=+1.4590
442
+ 1.23
443
+ 828
444
+ hostel
445
+ Pre
446
+ Post
447
+ 3.000=+1.3831
448
+ 2.875=+1.5126
449
+ 4.16
450
+ 704
451
+ guilty
452
+ Pre
453
+ Post
454
+ 3.167=+1.4646
455
+ 3.458=+1.4136
456
+ 9.18
457
+ 542
458
+ ashamed
459
+ Pre
460
+ Post
461
+ 3.167=+1.4646
462
+ 2.917=+1.6659
463
+ 7.89
464
+ 639
465
+ upset
466
+ Pre
467
+ Post
468
+ 3.708=+1.2676
469
+ 3.167=+1.2039
470
+ 14.59
471
+ 172
472
+ distressed
473
+ Pre
474
+ Post
475
+ 2.583=+1.529
476
+ 2.667=+1.6594
477
+ 3.25
478
+ 947
479
+ Variable
480
+
481
+ Mean=+SD
482
+ % change
483
+ of mean
484
+ P value
485
+ active
486
+ Pre
487
+ Post
488
+ 2.917=+1.2129
489
+ 2.958=+1.3345
490
+ 1.38
491
+ .048*
492
+
493
+ alert
494
+ Pre
495
+ Post
496
+ 2.958=+1.5458
497
+ 3.708=+1.2676
498
+ 20.22
499
+ 088
500
+ attentive
501
+ Pre
502
+ Post
503
+ 3.375=+1.2091
504
+ 2.958=+1.3667
505
+ 14.09
506
+ 207
507
+ determined
508
+ Pre
509
+ Post
510
+ 2.625=+1.2790
511
+ 3.333=+1.4039
512
+ 21.24
513
+ 073
514
+ enthusiastic
515
+ Pre
516
+ Post
517
+ 3.083=+1.2129
518
+ 3.375=+1.3126
519
+ 8.65
520
+ 307
521
+ excited
522
+ Pre
523
+ Post
524
+ 2.917=+1.1757
525
+ 2.792=+1.2151
526
+ 4.47
527
+ 750
528
+ inspired
529
+ Pre
530
+ Post
531
+ 2.958=+1.5737
532
+ 3.458=+1.3181
533
+ 14.45
534
+ 263
535
+ interested
536
+ Pre
537
+ Post
538
+ 3.250=+1.1516
539
+ 3.208=+1.4136
540
+ 1.30
541
+
542
+ 935
543
+ proud
544
+ Pre
545
+ Post
546
+ 3.042=+1.3667
547
+ 2.917=+1.4116
548
+ 4.28
549
+ 809
550
+ strong
551
+ Pre
552
+ Post
553
+ 3.250=+1.3593
554
+ 3.375=+1.2091
555
+ 3.70
556
+ 649
557
+ Variable
558
+ P value
559
+ Variable
560
+ P value
561
+ Afraid pre
562
+ 614
563
+ active pre
564
+ 268
565
+ Afraid post
566
+ .006*
567
+ Active post
568
+ .580
569
+ Scared pre
570
+ 713
571
+ alert pre
572
+ 037
573
+ Scared post
574
+ .073
575
+ Alert post
576
+ .837
577
+ Nervous pre
578
+ 103
579
+ attentive pr
580
+ 796
581
+ Nervous post
582
+ .017*
583
+ Attentive post
584
+ .066
585
+ Jittery pre
586
+ 527
587
+ Determined pre
588
+ 270
589
+ jittery post
590
+ .638
591
+ Determined post
592
+ .064
593
+ irritable pre
594
+ 263
595
+ Enthusiastic pre
596
+ 618
597
+ Irritable post
598
+ .016*
599
+ Enthusiastic post
600
+ .684
601
+ Hostel pre
602
+ 487
603
+ excited pre
604
+ 723
605
+ Hostel post
606
+ .959
607
+ Excited post
608
+ .533
609
+ guilty pre
610
+ 019
611
+ inspired pre
612
+ 535
613
+ Guilty post
614
+ .053
615
+ Inspired post
616
+ .886
617
+ ashamed pre
618
+ 480
619
+ interested pr
620
+ 695
621
+ Ashamed post
622
+ .027*
623
+ Interested post
624
+ .318
625
+ upset pre
626
+ 329
627
+ Proud pre
628
+ 332
629
+ Upset post
630
+ .020*
631
+ Proud post
632
+ .561
633
+ Distressed pre
634
+ 220
635
+ strong pre
636
+ 693
637
+ Distressed post
638
+ .420
639
+ Strong post
640
+ .737
641
+ YOGA AND ATTITUDE
subfolder_0/Effect of Adjunct Tele-Yoga on Clinical Status at 14 Days in Hospitalized mild and Moderate COVID-19 Patients a Randomized Controlled Trial..txt ADDED
@@ -0,0 +1,873 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Page 1/19
2
+ Effect of Adjunct Tele-Yoga on Clinical Status at 14
3
+ Days in Hospitalized mild and Moderate COVID-19
4
+ Patients: a Randomized Controlled Trial
5
+ Vijaya Majumdar 
6
+ (
7
+
8
9
+ )
10
+ Swami Vivekananda Yoga Anusandhana Samsthana
11
+ Manjunath N K 
12
+ Swami Vivekananda Yoga Anusandhana Samsthana
13
+ Nagarathna R 
14
+ Swami Vivekananda Yoga Anusandhana Samsthana
15
+ Suryanarayan Panigrahi 
16
+ Swami Vivekananda Yoga Anusandhana Samsthana
17
+ Muralidhar Kanchi 
18
+ Narayana Health City
19
+ Sarthak Sahoo 
20
+ Narayana Health City
21
+ Hongasandra R Nagendra 
22
+ Swami Vivekananda Yoga Anusandhana Samsthana
23
+ Adithi Giridharan 
24
+ Swami Vivekananda Yoga Anusandhana Samsthana
25
+ Mounika Reddy 
26
+ Swami Vivekananda Yoga Anusandhana Samsthana
27
+ Rakshitha Nayak 
28
+ Swami Vivekananda Yoga Anusandhana Samsthana
29
+ Research Article
30
+ Keywords:
31
+ Posted Date: March 22nd, 2022
32
+ DOI: https://doi.org/10.21203/rs.3.rs-1361039/v1
33
+ License:
34
+
35
+
36
+ This work is licensed under a Creative Commons Attribution 4.0 International
37
+ License.
38
+  
39
+ Read Full License
40
+ Page 2/19
41
+ Abstract
42
+ Background: We tested if tele-yoga intervention could aid in better clinical management for hospitalized
43
+ patients with mild to moderate COVID-19 when complemented with the standard of care.
44
+ Methods: This was a randomized controlled trial conducted at the Narayana Hrudalaya, Bengaluru, India
45
+ on hospitalized patients with mild to moderate COVID-19 infection, enrolled between May 31st and July
46
+ 22, 2021. Patients (n=225) were randomized in 1:1 ratio [adjunct tele-yoga (n = 113), or standard of care
47
+ (n = 112)]. Adjunct yoga group received intervention in tele-mode within 4 hours post-randomization until
48
+ 14 days along with the standard of care. The primary outcome was clinical status at 14th-day post-
49
+ randomization assessed with a 7-category ordinal scale. The trial included 11 secondary outcomes,
50
+ including 28-day mortality.
51
+ Results: As compared with standard of care alone, the proportional odds of having a higher score on the
52
+ seven-point ordinal scale at day 14 was ~1.9 for the adjunct tele-yoga group (95% CI, 1.18-3.18). CRP and
53
+ LDH levels were comparatively reduced in the adjunct tele-yoga group 5th day post-randomization. CRP
54
+ reduction was also observed as a potential mediator for the improvement of clinical outcomes in the
55
+ adjunct tele-yoga group. There were no significant differences between the treatment groups concerning
56
+ the duration of hospitalization, all-cause mortality at day 28; log-rank P = 0.144, and other outcomes.
57
+ Conclusion: The observed clinically relevant outcomes in COVID-19 patients at day 14 contest the use of
58
+ tele-yoga as a complementary treatment in hospital settings.
59
+ Introduction
60
+ The rapid global spread of the Corona virus-related pneumonia outbreak, which was described first in
61
+ December 2019, has led to the evolution of one of the most extensive pandemics in human history so
62
+ far.1–3 Though, the mainstay of treatment for patients with COVID-19 pneumonia remains symptomatic
63
+ and supportive care,4–6 the devaststating impact of the pandemic led to a parallel unprecedented quest
64
+ of identifying new and/or repurposed pharmacological treatments.5–10 Unfortunately, the initial
65
+ indications from these studies were disappointing which further aggravated the search of strategies
66
+ based on complementary and alternative medicine.5–11 Amidst this uncertainty, several key clinicians and
67
+ scientitists identified and proposed the adjunct potential of yoga for enhancing the effectiveness of
68
+ standard of care with respect to Covid management in acute settings.12 Authors emphasized the
69
+ relevance of certain practices of yoga and meditation in helping reduce the severity of COVID-19 disease,
70
+ including its collateral effects and sequelae,12 further underlined with the immunomodulatory, anti-
71
+ inflammatory and stress modulatory potential of yoga.13–15 Hence, we conducted this clinical trial to
72
+ address the necessity of testing the effectiveness of adjuvant tele-yoga to the standard of care in
73
+ improving the clinical outcomes for adults hospitalized with COVID-19. This trial was supported under a
74
+ special call announced by the Department of Science and Technology, Government of India under the
75
+ scheme, Science and Technology of Yoga and Meditation (SATYAM).16
76
+ Page 3/19
77
+ Design And Amendments
78
+ The protocol was approved by the institutional ethics committee from each site and conducted in
79
+ compliance with the Declaration of Helsinki. The study protocol was approved for funding by Deparment
80
+ of Science and Technology, Government of India (Appendices no. I and IV). Additionally the study was
81
+ also approved in a high level committee meeting conducted by Governemnt of Karnatake, India to ensure
82
+ control and mangament of COVID-19 outbreak. All patients or legally authorized representatives provided
83
+ the written informed consent. Given the uncertainty an in the recruitment and random allocation of the
84
+ study subjects in chaotic hospital settings amidst the pandemic, the trial was initially planned as a non-
85
+ randomized one. and their presumed lack of was initially planned as a non-randomized clinical trial
86
+ wherein an integrative yoga based supportive care was planned to be administrated as an adjunct
87
+ intervention for hospitalized COVID-19 patients. However, the protocol was amended on 14th May 2020,
88
+ on the basis of emerging feasibility of conducting a randomized trial as emphasized by the clinicans and
89
+ its supeioir design.The study was registered at clinical trial registry of India (CTRI/2020/09/027915).
90
+ Participants:
91
+ Given a significant proportion of requirement of timely hospitalization and mangament of Covid 19
92
+ patients, we recruited hospitalized COVID-19 patients in this trial. Those with moderate disease along with
93
+ the presence of comorbidities, or those with initially mild disease but experiencing worsening of
94
+ symptoms or depletion of oxygen saturation were referred and managed at the Mazumdar Shaw Medical
95
+ Center, Narayana Hrudalaya, Bengaluru, India. Laboratory confirmed SARS-CoV-2 cases defined as mild or
96
+ moderate according to FDA guidance were included with following eight symptoms:17 fever, cough, sore
97
+ throat, malaise, headache, muscle pain, gastrointestinal symptoms, and shortness of breath with exertion.
98
+ Additionally we also included the moderate disease definition od respiratory rate ≥ 15 < 30 and/or partial
99
+ 90–94%.18 In line with prior reports, this trial enrolled patients with mild and moderate COVID-19 who
100
+ were receiving no more than 4 liters per minute of supplemental oxygen.19 Notable exclusion criteria
101
+ included a peripheral oxygen saturation of 93% or less while breathing ambient air, a ratio of the partial
102
+ pressure of arterial oxygen to the fraction of inspired oxygen of less than 300, a respiratory rate of at least
103
+ 30 breaths per minute, and a heart rate of 125 or more beats per minute. Full eligibility criteria are listed in
104
+ eTable 2 in Supplement 3.
105
+ Outcomes:
106
+ We used the 7-category ordinal scale used that has been used in different COVID-19 therapeutic trials.7,20
107
+ The primary outcome was clinical status at day 14th post- randomization, assessed with a 7-category
108
+ ordinal scale (the COVID Outcomes Scale) recommended by the World Health Organization.20 The scale
109
+ consisted of 7 mutually exclusive categories: 1, death; 2, hospitalized, receiving extracorporeal membrane
110
+ oxygenation (ECMO) or invasive mechanical ventilation; 3, hospitalized, receiving noninvasive
111
+ mechanical ventilation or nasal high-flow oxygen therapy; 4, hospitalized, receiving supplemental oxygen
112
+ without positive pressure or high flow; 5, hospitalized, not receiving supplemental oxygen; 6, not
113
+ Page 4/19
114
+ hospitalized and unable to perform normal activities; and 7, not hospitalized and able to perform normal
115
+ activities. To distinguish between categories 6 and 7, study personnel assessed the patient’s performance
116
+ of usual activities with questions consistent with validated health status measures.21
117
+ Patients who were discharged from the hospital were contacted by tele-phone for assessment of the
118
+ COVID Outcome Scale at 7, 14, and 28 days after randomization. Complete information on the inclusion
119
+ and exclusion criteria is provided in the Supplementary Appendix. All the patients provided written or
120
+ electronic informed consent before randomization.The secondary outcome set included: scores on the
121
+ COVID Outcomes Scale at days 7, and 28 post-randomization; all-cause all-location mortality at 28 days
122
+ post-randomization, duration of days at hospital, 5th day changes postrandomization for viral load
123
+ expressed as cyclic threshold (Ct), and inflammatory markers and perceived stress scores at day 14
124
+ postrandomization. Other auxillary markers were HbA1c, blood hemogram, kidney function markers, etc.
125
+ All protocol amendments were authorized and approved by the institutional review board or independent
126
+ ethics committee.
127
+ Clinical and Laboratory Monitoring:
128
+ Assessments:
129
+ Data were collected daily, from randomization until day 14, in the patient proformas. For patients who
130
+ were discharged before day 14, a structured tele-phone call to the patient or the patient’s family was
131
+ conducted on or after day 14 by an interviewer who was unaware of the assigned trial group in order to
132
+ assess vital status and return to routine activities.. All samples were processed by PCR for genes N and E
133
+ of SARS-CoV-2. Demographic, clinical, laboratory, and radiology data from patients’ medical records were
134
+ collected by the research team. The data were evaluated by a trained team of physicians. The date of
135
+ disease onset was defined as the day when the symptom was noticed. Data on symptoms, vital signs,
136
+ laboratory values on biomarkers of disease progression, biomarkers [C-reactive protein (CRP), D-Dimer,
137
+ Interleukin 6 (IL-6), ferritin, and Lactate dehydrogenase (LDH)], and treatment measures during the
138
+ hospital stay were collected. Patient assessments included physical examination, respiratory status
139
+ (respiratory rate, type of oxygen supplementation, blood oxygen saturation, and radiographic findings),
140
+ adverse events, and concomitant medications. On study days 1, and 5, blood samples were obtained for
141
+ measurement of blood cell counts, serum creatinine, glucose, total bilirubin, and liver transaminases, and
142
+ inflammatory biomarkers. Perceived stress was assessed using Perceived Stress Scale 10 (PSS-10).22
143
+ Site investigators assessed clinical status daily from day 1 through day 14 or hospital discharge on a 7-
144
+ point ordinal scale. In case of over a day change in the scores observed for the clinical status worse
145
+ scores of the hospitalized patients were documented. A final assessments on clinical status were done on
146
+ the day 28 personally for hospitalized patients or through tele-phonic interview for already discharged
147
+ patients.
148
+ Intervention:
149
+ Page 5/19
150
+ We built a yoga protocol adjusted to isolated patients and staff, including deliervry through tele- (videos)
151
+ as well as in person intervention. Clinical guidelines were followed up for treating patients via tele-yoga
152
+ and hands on techniques in cooperation with the medical heads of departments. Instructional short
153
+ videos were prepared in different languages constituting the intervention. At day 1 hands on intervention
154
+ was carried out in the COVID wards through teams of certified yoga therapists in personal protective
155
+ suites, within 4 hours of randomization. Those who were discharged before 14 days post-randomization,
156
+ tele-yoga sessions were continued from their home settings. The practices of yoga were included based
157
+ on the reported effects on strengthening of the respiratory muscles, and respiratory function
158
+ [development of awareness of expansion and contraction of the airways, continuous and rhythmic
159
+ breathing, reported to aid in thorough oxygenation of the lungs etc] and also known to reduce
160
+ inflammation. (For details on the intervention see the appendices I and V). These exercises were followed
161
+ by quick relaxation and subsequent 10 minutes of pranayama (breathing exercises), consisting of right
162
+ nostril breathing/and alternate nostril breathing and Brahmari. The practice sessions ended with guided
163
+ relaxation with a resolve. Patients received daily tele–yoga intervention with relaxation/meditative
164
+ practices for twice for day.
165
+ Standard of Care:
166
+ Standard of care was based on the recommendations of the Indian Council of Medical Research, which
167
+ was updated as per the evolving evidence generated in drug trials and international consensus
168
+ guidelines.23,24 Overall, it included antibiotic agents, antiviral agents, corticosteroids, vasopressor support,
169
+ and anticoagulants at the discretion of the clinicians.
170
+ Randomization
171
+ Randomization was done in permuted blocks of 4 in sequences created by the unblinded research staff in
172
+ Microsoft Excel version 19.0 who provided masked allotment to the yoga traners. Owing to the nature of
173
+ the intervention, blinding was not possible, but outcome measures were blinded for the randomisation
174
+ groups. Eligible patients were randomly assigned in a 1:1 ratio to receive either standard of care or
175
+ adjunct yoga. Allocation assignment was concealed from investigators and patients.
176
+ Statistical analysis:
177
+ Analysis was performed with SPSS version 23 [IBM Corp., (N.Y., USA]. The total intent-to-treat (ITT)
178
+ sample size of 230 patients with a 1:1 randomization of adjunct tele–yoga to standard of care provides
179
+ approximately 80% power to detect a 15% difference between treatment groups in time cumulative
180
+ hospital discharge (i.e.,with or without limiting abilities) rates of 80% in the adjunct tele–yoga group and
181
+ 75% in standard of care group, at 14th day postrandomization, using a two-sided 5% alpha. The trial was
182
+ analyzed by comparing patients randomized to adjunct tele- yoga vs those randomized to standard of
183
+ care, with the placebo group serving as the referent. The primary outcome was analyzed with a
184
+ multivariable proportional odds model with age, and sex. Further adjustments with baseline
185
+ (prerandomization) COVID Outcomes Scale category, and duration of acute respiratory symptoms are
186
+ reported as posthoc analysis. Results are presented with corresponding 95% confidence intervals For
187
+ Page 6/19
188
+ patients who were discharged prior to 14 days after randomization, primary outcome ascertainment was
189
+ completed by tele-phone calls. Patients who could not be reached by tele-phone for the primary outcome
190
+ assessment at day 14 had the COVID Outcomes Scale score carried forward from a day 7 follow-up call if
191
+ such a call was successfully completed or had a category 6 score (not hospitalized and unable to
192
+ perform normal activities) imputed if no prior follow-up calls were successfully completed. For patients
193
+ who remained hospitalized 14 days after randomization, primary outcome ascertainment was completed
194
+ by medical record review.
195
+ Given the deviation from normality for the study variables, analysis of covariance was done using the
196
+ rank transformation to study the influence of adjunct tele-yoga intervention on biomarker levels at day
197
+ from postrandomization.
198
+ Heterogeneity of treatment effect by prespecified baseline characteristics was evaluated by adding an
199
+ interaction term between randomized group assignment and the baseline characteristic of interest in the
200
+ primary model. Baseline characteristics evaluated in heterogeneity of treatment effect analyses included
201
+ baseline COVID Outcomes Scale category, and duration of symptoms prior to randomization, age, sex,
202
+ and race/ethnicity.
203
+ All-cause mortality was estimated using the Kaplan-Meier product limit method. Adjunct tele–yoga group
204
+ was compared with the standard of care group using the log-rank test, and the mean estimates and 95%
205
+ CIs were provided.
206
+ We also used the paramed- command in SPSS to perform mediation analysis by fitting a linear regression
207
+ model to the outcomes with yoga yreatment and the mediators included were the covariates and then
208
+ fitting a regression model to the mediator (linear or logistic depending on the mediator) including
209
+ treatment as a covariate.
210
+ Post Hoc Analyses
211
+ We also conducted sensitivity analyses of the primary end point (1) adjusting for day 1 clinical score; and
212
+ (2) adjusting for duration of symptoms. Additionaly we also performed a post-hoc analysis that was
213
+ stratified by CRP and LDH levels. We also calculated and comapared the proportions of patients with a 1-
214
+ point or greater improvement, no change or worsening of clinical status at days 7, 14, and 28.
215
+ Page 7/19
216
+ Table 1
217
+ Baseline Patient Characteristics
218
+ Variable
219
+ Overall
220
+ (n = 
221
+ 225)
222
+ Tele–
223
+ yoga
224
+ (n = 113)
225
+ Control
226
+ (n = 112)
227
+ P value
228
+ Age, median IQR
229
+ 43 (35–
230
+ 53)
231
+ 42 (35-
232
+ 53.5)
233
+ 43 (36–52)
234
+ 0.657
235
+ Gender
236
+  
237
+  
238
+  
239
+ ;
240
+ Female
241
+ 102
242
+ (45.33)
243
+ 51
244
+ (45.13)
245
+ 51 (45.54)
246
+ 1.00
247
+ Male
248
+ 123
249
+ (54.67)
250
+ 62
251
+ (54.87)
252
+ 61 (54.46)
253
+  
254
+ Coexisting conditions
255
+  
256
+  
257
+  
258
+  
259
+ Hypertension, n (%)
260
+ 47
261
+ (20.89)
262
+ 21
263
+ (18.58)
264
+ 26 (23.21)
265
+ 0.416
266
+ Diabetes, n (%)
267
+ 85
268
+ (37.78)
269
+ 42
270
+ (37.17)
271
+ 43 (38.39)
272
+ 0.891
273
+ Coronary artery disease, n (%)
274
+ 15
275
+ (6.67)
276
+ 5 (4.43)
277
+ 10 (8.93)
278
+ 0193
279
+ Hypothyroidism, n (%)
280
+ 25
281
+ (11.11)
282
+ 14
283
+ (12.39)
284
+ 11 (9.82)
285
+ 0.672
286
+ COPD, n (%)
287
+ 3 (1.33)
288
+ 3 (2.65)
289
+ 0 (0)
290
+ 0.222
291
+ Asthma, n (%)
292
+ 2 (0.89)
293
+ 0 (1.73)
294
+ 2 (1.80)
295
+ 0.244
296
+ Symptoms
297
+  
298
+  
299
+  
300
+  
301
+ Fever/chills, n (%)
302
+ 158
303
+ (70.22)
304
+ 73
305
+ (64.61)
306
+ 85 (75.89)
307
+ 0.080
308
+ Cough, n (%)
309
+ 163
310
+ (72.44)
311
+ 82
312
+ (72.57)
313
+ 81 (72.32)
314
+ 1.000
315
+ Sore throat, n (%)
316
+ 28
317
+ (12.44)
318
+ 16
319
+ (10.71)
320
+ 12 (14.16)
321
+ 0.545
322
+ Nausea/Vomiting, n (%)s
323
+ 13
324
+ (5.78)
325
+ 7 (6.19)
326
+ 6 (5.36)
327
+ 1.000
328
+ General weakness, n (%)
329
+ 92
330
+ (40.89)
331
+ 48
332
+ (42.48)
333
+ 44 (39.28)
334
+ 0.685
335
+ Breathlessness, n (%)
336
+ 105
337
+ (50.72)
338
+ 44
339
+ (41.90)
340
+ 61 (59.80)
341
+ 0.006**
342
+ Page 8/19
343
+ Variable
344
+ Overall
345
+ (n = 
346
+ 225)
347
+ Tele–
348
+ yoga
349
+ (n = 113)
350
+ Control
351
+ (n = 112)
352
+ P value
353
+ Headache, n (%)
354
+ 57
355
+ (25.33)
356
+ 34
357
+ (30.09)
358
+ 23 (20.54)
359
+ 0.125
360
+ Diarrhea, n (%)
361
+ 11
362
+ (5.31)
363
+ 4 (3.81)
364
+ 7 (6.86)
365
+ NS
366
+ Previous medication use — no. (%)
367
+  
368
+  
369
+  
370
+  
371
+ Glucocorticoid
372
+ 7 (3.03)
373
+ 5 (4.35)
374
+ 2 (1.67)
375
+ NS
376
+ ACE inhibitor
377
+ 12
378
+ (5.19)
379
+ 7 (6.19)
380
+ 5 (4.46)
381
+ NS
382
+ Angiotensin II–receptor antagonist
383
+ 8 (3.46)
384
+ 3 (2.61)
385
+ 5 (4.35)
386
+ NS
387
+ Baseline ordinal Covid outcome score — no. (%)
388
+  
389
+  
390
+  
391
+  
392
+ 3.Hospitalized, receiving non-invasive mechanical
393
+ 92
394
+ (40.89)
395
+ 54
396
+ (47.79)
397
+ 38 (33.93)
398
+ 0.60
399
+ 4.Hospitalized, receiving supplemental oxygen
400
+ without positive pressure or high flow; requiring
401
+ low-flow supplemental oxygen;
402
+ 125
403
+ (55.56)
404
+ 57
405
+ (50.44)
406
+ 68 (60.71)
407
+  
408
+ 5. Hospitalized, not receiving
409
+ supplemental oxygen
410
+ 8 (3.56)
411
+ 2 (1.77)
412
+ 6 (5.36)
413
+  
414
+ Ct value
415
+ 28.00
416
+ (22.5–
417
+ 32.00)
418
+ 27.00
419
+ (22.50–
420
+ 30.00)
421
+ 28.0
422
+ (22.50–
423
+ 33.00)
424
+ 0.125
425
+ Inflammatory markers
426
+  
427
+  
428
+  
429
+  
430
+ C-reactive protein, mg/l
431
+ 24.82
432
+ (8.09–
433
+ 63.67)
434
+ 28.16
435
+ (8.43–
436
+ 65.46)
437
+ 26.71
438
+ (8.47–
439
+ 67.40)
440
+ 0.854
441
+ Ferritin, mg/dl
442
+ 196
443
+ (81.85–
444
+ 421)
445
+ 179
446
+ (82.30-
447
+ 404.50)
448
+ 203(77.40–
449
+ 441)
450
+ 0.616
451
+ D-dimer, ng/ml
452
+ 167
453
+ (94.00-
454
+ 242.00)
455
+ 170 (94–
456
+ 245)
457
+ 179 (95–
458
+ 250)
459
+ 0.953
460
+ LDH, U/L
461
+ 302
462
+ (241–
463
+ 392)
464
+ 296
465
+ (226.50–
466
+ 355)
467
+ 319 (248-
468
+ 436.94
469
+ 0.057
470
+ IL-6, mg/dL
471
+ 37.65
472
+ (11.27–
473
+ 80.02)
474
+ 31.89
475
+ (11.93–
476
+ 79.99)
477
+ 39.76
478
+ (10.21–
479
+ 76.15)
480
+ 0.808
481
+ Page 9/19
482
+ Variable
483
+ Overall
484
+ (n = 
485
+ 225)
486
+ Tele–
487
+ yoga
488
+ (n = 113)
489
+ Control
490
+ (n = 112)
491
+ P value
492
+ Haemogram
493
+  
494
+  
495
+  
496
+  
497
+ Hb (g/dL)
498
+ 13.50
499
+ (12.20–
500
+ 14.60)
501
+ 13.6
502
+ (12.10–
503
+ 14.70)
504
+ 13.2
505
+ (12.20-
506
+ 14.45)
507
+ 0.406
508
+ ALC (×109/L)
509
+ /L)a
510
+ 1.27
511
+ (0.87–
512
+ 1.92)
513
+ 1.21
514
+ (0.84–
515
+ 1.86)
516
+ 1.34
517
+ (0.88–
518
+ 1.95)
519
+ 0.472
520
+ AMC (×109 /L)
521
+ 0.46
522
+ (0.29–
523
+ 0.74)
524
+ 0.45
525
+ (0.28–
526
+ 0.72)
527
+ 0.50
528
+ (0.32–
529
+ 0.77)
530
+ 0.343
531
+ ANC (×109 /L)
532
+ 4.23
533
+ (2.85–
534
+ 6.71)
535
+ 4.17
536
+ (2.91–
537
+ 6.64)
538
+ 4.39
539
+ (2.73–
540
+ 6.83)
541
+ 0.606
542
+ PSS
543
+ 19 (15–
544
+ 24)
545
+ 20 (16–
546
+ 25)
547
+ 19 (13.25-
548
+ 23)
549
+ 0.023*
550
+ For continuous variables, median and IQR (Interquartile range) have been presented due to the non-
551
+ normality of the data. Correspondingly, Mann-Whitney tests were used to assess if differences between
552
+ the study groups were statistically significant. For categorical variables, Chi-square/Fisherʼs exact tests
553
+ were used to check if there were any association between the groups. Ct, cyclic threshold value; ALC,
554
+ absolute lymphocyte count; AMC, absolute monocyte count; ANC, absolute neutrophil count; PSS,
555
+ Perceived stress scale.
556
+ Results
557
+ During the 60-days of enrollment period, 326 patients were screened; 66 (20.24%) patients were excluded
558
+ for being hospitalized for more than 48 hours at the time of screening, 24 (7.36%) had tested negative for
559
+ RT-PCR at day 0 (baseline) for coronavirus disease 2019. Further, 11 eligible patients refused to
560
+ participate (2.76%) (see Fig. 1, Trial Profile.). Hence, out of 236 eligible patients, 225 could be randomized,
561
+ 113 were randomized to the adjunct tele–yoga and 112 were randomized to the standard of care group.
562
+ The last outcome assessment was on July 31st 2021. Overall the median age of the participants was 43
563
+ years (IQR, 35–53 years), 54.67% were male, 32.43% had diabetes, 20.89% had hypertension, and 6.67%
564
+ had coronary artery disease. Demographics and baseline disease characteristics of participants in both
565
+ groups are presented in Table 2; there was an equal distribution of age, gender, days before onset of
566
+ symptomsa, comorbidities, and inflammatory markers between the study arms (Tables 2 and S2). Overall,
567
+ 70.22% of the patients presented with perceived or objective fever, 72.44% presented with cough, 12.44%
568
+ presented with sore throat, 25.33% presented with headache and 50.72% presented with breathlessness
569
+ with no remarkable differences between groups. The median duration of symptoms prior to
570
+ Page 10/19
571
+ randomization was 3 days (IQR, 2–4 days) in both the groups. There were no differences in vital signs, or
572
+ full blood count also between the groups (Table S2). Of 113 patients in the adjunct yoga group, 29 (76%)
573
+ were discharged before 7 days post-randomization, hence, were continued with tele–yoga sessions till
574
+ 14th.
575
+ Primary Outcome:
576
+ The primary outcome (status on the seven-point ordinal scale at day 14) was assessed in all patients who
577
+ were still hospitalized on day 14th or were tele-phonically interviewed if had been discharged earlier (see
578
+ the Supplementary Appendix and Fig. S2). The distribution of patients’ scores on the seven-level ordinal
579
+ scale at 14 days is shown in Fig. 2. Patients randomized to the adjunct tele–yoga group had significantly
580
+ higher odds of a better clinical status distribution on the 7-point ordinal scale compared with those
581
+ randomized to standard care (odds ratio, 1.94, 95% CI = 1.18–3.18) (Fig. 2). Sensitivity analyses of the
582
+ primary end point adjusting for day 1 clinical status score, and symptom duration using the intention-to-
583
+ treat population produced no significant difference (Table S3). The results for the primary outcome were
584
+ not different across the prespecified subgroups (Table S4).
585
+ Secondary Outcomes:
586
+ There were significant differences between the adjunct tele–yoga and standard care groups in terms of
587
+ improvement in clinical status at 7th day (partially adjusted for age odds ratio, 3.61; 95% CI, 2.11–6.05; P 
588
+ < 0.001) but the outcome on 28th day was not significant (adjusted odds ratio,, 95% CI = 1.03–3.44)
589
+ (Table S5). At day 5, there was significant reductions in CRP (p = 0.001) and LDH levels (P = 0.029) in the
590
+ adjunct yoga group compared to the standard of care alone (Fig. 3 and Table S6). There were no
591
+ significant differences between the treatment groups in duration of hospitalization (Fig. 3). The Kaplan-
592
+ Meier estimates of all-cause mortality at day 28 were 1.80% vs 5.40% for standard of care; log rank P = 
593
+ 0.144; adjusted hazard ratio [HR], 0.26; 95% CI, 0.05–1.30). (Figure S3)
594
+ Exploratory outcomes:
595
+ Since we could establish significant reductions in CRP and LDH at day 5 from post-randomization in the
596
+ adjunct yoga group compared to the standard of care group alone, we further tested for their mediating
597
+ effects on the intervention (Table 2). The analyses indicated CRP as potential mechanistic mediator of
598
+ adjunct yoga on the improved clinical status at 14th day post intervention. There was also differences
599
+ between proportions of subjects with atleast 1 unit change in outcomes at day 7 from basleine between
600
+ adjunct tele-yoga as compared to the standard of care groups. However, the distributions were not
601
+ different for days 14 and 28 (Figure S4).
602
+ Adverse Effects
603
+ None of the 8 deaths through day 28 (5 [1%] in the standard of care, and 3 [2%] in the adjunct tele-yoga
604
+ group occurred in the Covid 19 patients could be attributed to the tele-yoga intervention (Table S7). In the
605
+ Page 11/19
606
+ tele-yoga group, extension of hospitalization was 10.62%, whereasin the standard of care alone it was 21
607
+ 18.75%. Single cases each of sinus tachycardia, and pulmonary embolism was observed in the yoga
608
+ group as compared to no cases in the standard of care.
609
+ #Only hospitalized patients who were not receiving supplemental oxygen or who were receiving up to 4
610
+ liters per minute of supplemental oxygen were eligible for the trial. Patients who had scores on other
611
+ levels of the seven-level ordinal scale were not eligible. Adjusted for baseline age, sex, comorbidities
612
+ (diabetes, hypertension, hypothyroid, ), he primary outcome (status on the seven-point ordinal scale at day
613
+ 14) was assessed in all patients who were still in the hospital on day 15 exactly and in outpatients (by
614
+ means of tele-phone interview) as close to day 14 as possible.
615
+ Primary outcome: Distribution n (%)
616
+ Total
617
+ Subjects
618
+ (n = 225)
619
+ Tele–
620
+ yoga
621
+ (n = 113)
622
+ Standard of care (n = 
623
+ 112)
624
+ 7: Not hospitalized with no limitations on
625
+ activities
626
+ 96 (42.67)
627
+ 52
628
+ (46.02)
629
+ 44 (39.29)
630
+ 6: Not hospitalized but with limitations on
631
+ activities
632
+ 87 (38.67)
633
+ 51
634
+ (45.13)
635
+ 36 (32.14)
636
+ 5: Hospitalized, not receiving supplemental
637
+ oxygen
638
+ 27 (12.00)
639
+ 7(6.19)
640
+ 20 (17.86)
641
+ 4: Hospitalized, receiving supplemental
642
+ oxygen
643
+ 6 (2.67)
644
+ 1 (0.88)
645
+ 5 (4.46)
646
+ 3: Hospitalized, receiving noninvasive
647
+ ventilation
648
+ or high-flow nasal cannula
649
+ 2 (0.89)
650
+ 1 (0.88)
651
+ 1 (0.89)
652
+ 2: Hospitalized, receiving mechanical
653
+ ventilation
654
+ 3 (1.33)
655
+ 1 (0.88)
656
+ 2 (1.79)
657
+ 1: Death
658
+ 4 (1.78)
659
+ 0 (0.00)
660
+ 4 (3.57)
661
+ Proportional Odds Ratio (OR, 95%CI)
662
+ 1.94 (1.18–3.18) P = 0.01
663
+ Model is adjusted for age and gender
664
+  
665
+ Table 2
666
+ Indirect, direct and total effects of the mediation models on COVID-19 outcomes at 14 days post-
667
+ randomization
668
+ Page 12/19
669
+  
670
+ Effect size
671
+ Proportion mediated
672
+ Direct effect of the adjunct tele-yoga
673
+ vs. standard of care
674
+ Adjunct yoga
675
+ 0.41(0.03–0.78)
676
+ -
677
+ Total effect of the model
678
+ 0.54 (0.17–0.91)
679
+ -
680
+ Indirect (mediating) effects
681
+  
682
+  
683
+ LDH
684
+ -0.01 (-0.10-0.04)
685
+ Not significant
686
+ CRP
687
+ 0.06 (0.05–0.16)*
688
+ 11.11%
689
+ Discussion
690
+ This study is a pioneer clinical trial that investigated the short-term acute interventional benefits of
691
+ adjunct tele–yoga practice for clinical management of hospitalized COVID-19 patients. We could
692
+ establish a ~ 1.9-fold improvement in the clinical status at 14th day post-randomisation, in mild and
693
+ moderate hospitalized COVID-19 patients (Odds Ratio = 1.94, 95% CI = 1.18–3.18) as compared to those
694
+ with only standard of care. The odds of improvement with yoga intervention were higher at the 7th day
695
+ (Odds ratio = 3.61, 95% CI = 2.13–6.10. However, the effectiveness of the intervention was not found to be
696
+ sustained at 28th day post-randomization (Odds Ratio 1.70, 95% CI = 0.97–2.99), P = 0.07). Since,
697
+ patients had several coexisting diseases and were subjected to a diverse medication regimen, the
698
+ complementary effects of tele-yoga could have been influenced by the heterogeneity of the sample and
699
+ its treatment. However, when analyzed in the post hoc subgroup analysis, adjunct yoga was found to be
700
+ effective across all the strata of covariates. Concerning influence of the intervention on mortality related
701
+ outcomes, no benefit could be observed for the adjunct yoga interevention with respect to mortality (adj
702
+ HR 0.26; 95% CI, 0.05–1.30).
703
+ We could establish support for the primary end points with the observed secondary improvement in
704
+ crucial biomarkers in the tele-yoga group compared to the standard of care at 5th day post-randmization,
705
+ CRP (P = 0.001) and LDH (P = 0.029). Both CRP and LDH have been reported as prognostic markers of
706
+ deterioration in COVID 19 patiants including mild/non severe cases as well.25,26 We could also establish a
707
+ mediation effect of CRP modulation underlying effectiveness of tele-yoga intervention (~ 11% proportion
708
+ mediation on on the observed improved outcome of clinical status at day 14). This inflammation
709
+ reducing effect of yoga well aligns with the physiological modulation of vagal tone, one of the widely
710
+ reported effects of yoga and meditation.12,13 The anti-inflamamroty potentisl of yoga could serve as a
711
+ step forward in the fight against other serious forms of infectious diseases with a dominant inflammatory
712
+ component, as proposed for malaria, HIV/ AIDS, and SARS, among others. COVID-19.
713
+ Page 13/19
714
+ We could not observe a significant effect of adjunct tele-yoga on perceived stress scale in COVID 19
715
+ patients (P = 0.69). We speculate that the failure to obtain the desired effect on stress and sevral other
716
+ variables could be due to the primarily virtual mode of the delivery of the intervention and the short
717
+ duration of intervenion. However, the beneficial clinical outcomes observed in the study hold special
718
+ significance in the present era with reimerging and recurring viral infections.27,28 Overall the findings of
719
+ this study support the exploratory notions of several researchers and clinicians that certain meditation,
720
+ yoga asana (postures), and pranayama (breathing) practices may be effective adjunctive means of
721
+ treating SARS-CoV-2 infection.12 The findings also pave the foundation for the clinical implementation of
722
+ tele–yoga-based adjunct interventions in hospital settings for the management of infectious diseases. A
723
+ previous study on yoga had also reported it to be effective as an adjunct to anti-tuberculosis treatment
724
+ (ATT) in patients with pulmonary tuberculosis by reducing the symptom scores, sputum conversion on
725
+ microscopy, and improvement in the lung capacity and radiographic pictures.29
726
+ This clinical exploration is one of the earliest to be reported amongst several other concomitant attempts
727
+ to establish the efficacy of aditional systems of medicine, against the combat of COVID-19, well reflected
728
+ by 67 such registered in the Clinical Trial Registry of India (CTRI).30 Hence, given the lack of available
729
+ findings from clinical trials on COVID 19 and Yoga based interventions, the findings of this trial could not
730
+ be presented with comparisons.
731
+ The study has several strengths. One of the strengths of the study is the inclusion of WHO criteria for
732
+ assessing the benefit on clinical status for patients hospitalized with mild and moderate coronavirus
733
+ disease 2019 (COVID-19). This is the first report wherein yoga-based intervention was provided in a tele–
734
+ mode to Covid 19 patients. This was done to prevent health care employees from being infected.
735
+ Importantly, the trial included inflammatory markers as study outcomes, wherein an anti-inflammatoty
736
+ mediating influence of yoga intervention could be established improving the outcomes of hospitalized
737
+ mild to moderate COVID patients. A key feature of the trial was the early implementation of treatment
738
+ within 7 days of symptom onset (median duration of 3 days) which has been considered important for
739
+ the treatment protocol, in particular antivirals like remdesivir.
740
+ The trial was limited to hospitalized Covid 19 patients which restricts the generalizability of the findings
741
+ to other populations involving home-base care. The assessments were limited to 28 days post
742
+ randomization, reporting long-term outcomes of trial participants should have been considered. Given the
743
+ nature of intervention, the study used an open-label design, which could have led to biases in patient care
744
+ and reporting of data. Though prespecified for days 14, and other than clinical status and subjective
745
+ outcomes, other laboratory parameters could not be routinely collected due to logistic challenges.
746
+ Overall we could observe clinically relevant effects among hospitalized patients with mild to moderate − 
747
+ 19, contesting the use of tele-yoga as a complmentary treatment for patients with this disease. However,
748
+ the positive signal found in this small scale trial warrants the conduction of larger trials using tele-yoga
749
+ for the treatment of COVID-19.
750
+ Page 14/19
751
+ Declarations
752
+ Data availability:
753
+ The datasets generated and/or analysed during the current study are not publicly available  due to
754
+ privacy or ethical restrictions but are available from the corresponding author on reasonable request.
755
+ Author Contributions:
756
+ Vijaya Majumdar and Manjunath N K take responsibility for the integrity of the data and the accuracy of
757
+ the data analysis. Concept and design: Nagarathna R, Mannjunath NK, Vijaya Majumdar. Acquisition,
758
+ analysis, or interpretation of data: Suryanarayan Panigrahi, Sarthak Sahoo, Adithi Giridharan, Mounika
759
+ Reddy, Rakshitha Nayak and Vijaya Majumdar, Drafting of the manuscript: Vijaya Majumdar and
760
+ Manjunath NK, Critical revision of the manuscript for important intellectual content: Manjunath NK,
761
+ Nagarathna R, Muralidhar Kanchi, Hongasandra R Nagendra. Statistical analysis: Vijaya Majumdar,
762
+ Obtained funding: Vijaya Majumdar, Manjunath NK, and Nagarathna R, Administrative, technical, or
763
+ material support.
764
+ Funding/Support:
765
+ This study was sponsored by Department of Science and Technology,under the scheme SATYAM of
766
+ Government of India
767
+ Conflict of Interest Disclosures: 
768
+ Authors declare no conflict of interest
769
+ Additional Contributions:
770
+ We thank the patients who participated in this study, their families, and all participating investigators as
771
+ well as their clinical and nursing staff.
772
+ References
773
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774
+ Infect Dis. 2020 May;20(5):533-534. doi: 10.1016/S1473-3099(20)30120-1. Epub 2020 Feb 19.
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+ 2. Phelan AL, Katz R, Gostin LO. The novel coronavirus originating in Wuhan, China: challenges for
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+ 3. World Health Organization. COVID-19 Public Health Emergency of International Concern (PHEIC)
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+ 15. Obasi CN, Brown R, Ewers T, et al. Advantage of meditation over exercise in reducing cold and flu
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+ management of suspect/confirmed cases of COVID-19. [Internet] Available from:
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+ https://www.mohfw.gov.in/pdf/FinalGuidanceonMangaementofCovidcasesversion2.pdf. Accessed
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+ Policy. 1990;16(3):199-208. doi:1016/0168-8510(90)90421-9
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+ 24. Malhotra V, Basu S, Sharma N, Kumar S, Garg S, Dushyant K, Borle A. Outcomes among 10,314
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+ hospitalized COVID-19 patients at a tertiary care government hospital in Delhi, India. J Med Virol.
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+ 2021 Jul;93(7):4553-4558. doi: 10.1002/jmv.26956. Epub 2021 Apr 1. PMID: 33755238; PMCID:
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+ PMC8251427.
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+ 26. Shi J, Li Y, Zhou X, et al. Lactate dehydrogenase and susceptibility to deterioration of mild COVID-19
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+ Lancet. 2021;398(10317):2126-2128.
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+ 29. Visweswaraiah, N. K., & Telles, S. (2004). Randomized trial of yoga as a complementary therapy for
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+ pulmonary tuberculosis. Respirology (Carlton, Vic.), 9(1), 96–101. https://doi.org/10.1111/j.1440-
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+ Page 17/19
859
+ 30. Umesh C, Ramakrishna KK, Jasti N, Bhargav H, Varambally S. Role of Ayurveda and Yoga-Based
860
+ lifestyle in the COVID-19 Pandemic - A Narrative Review [published online ahead of print, 2021 Jul
861
+ 19]. J Ayurveda Integr Med. 2021;10.1016/j.jaim.2021.07.009. doi:10.1016/j.jaim.2021.07.009
862
+ Figures
863
+ Figure 1
864
+ Trial Profile
865
+ Page 18/19
866
+ Figure 2
867
+ Clinical Status on the Coronavirus Disease (COVID) Outcomes Scale 14 Days post Randomization
868
+ Page 19/19
869
+ Figure 3
870
+ Biomarker levels at day 5 post randomization
871
+ Supplementary Files
872
+ This is a list of supplementary files associated with this preprint. Click to download.
873
+ SupplementrayDataCovidStudyfinal16.03.2022.docx
subfolder_0/Effect of Residential Yoga Camp on Psychological Fitness of Adolescents A Cohort Study.txt ADDED
@@ -0,0 +1,827 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Journal of Clinical and Diagnostic Research. 2018 Aug, Vol-12(8): VC07-VC11
2
+ 7
3
+ DOI: 10.7860/JCDR/2018/36839.11872
4
+ Original Article
5
+ Psychiatry/Mental
6
+ Health Section
7
+ Effect of Residential Yoga Camp
8
+ on Psychological Fitness of
9
+ Adolescents: A Cohort Study
10
+ Astha Choukse1, Amritanshu Ram2, HR Nagendra3
11
+ ABSTRACT
12
+ Introduction: Discovering and promoting ways that improve
13
+ adolescents’ psychological fitness has been a recurrent
14
+ concern in the field of health and psychology. Adolescence, as
15
+ a period of transition, is highly prone to have mental health risks
16
+ and unhealthy behaviour patterns. Thus, it is the right time to
17
+ promote healthy practices to prevent problems of health and
18
+ behaviour in adulthood. As Yoga provides practical solutions for
19
+ mental health, we anticipated that exposure to it should improve
20
+ psychological fitness among adolescents.
21
+ Aim: To evaluate the effectiveness of short term residential yoga
22
+ intervention on psychological constructs in adolescents.
23
+ Materials and Methods: A pre, post-yoga interventional study
24
+ was carried out in a 10 day residential camp. Three independent
25
+ cohorts of adolescents from India, in three batches (1, 2 and 3),
26
+ with sample size of 148 (87 boys and 61 girls), 167 (122 boys
27
+ and 45 girls) and 195 (121 boys and 74 girls), respectively were
28
+ examined. A holistic integrated yoga module with eight hours of
29
+ yoga sessions per day was given as an intervention. Emotional
30
+ Intelligence (EI), emotional regulation strategies, Clinical anger
31
+ and self-concept parameters were studied using psychometric
32
+ scales like Schutte Emotional Intelligence Scale (SEIS), Cognitive
33
+ Emotion Regulation Questionnaire (CERQ-short), Clinical Anger
34
+ Scale (CAS) and Self-concept Scale respectively. Authorised
35
+ scales and software were used for assessments and analyses.
36
+ Results: Significant (p<0.05) improvements in EI, emotional
37
+ regulation and anger management were observed in all the
38
+ three batches. However, no significant improvement was
39
+ found in self-concept in either of the cohorts. The observation
40
+ of the results of assessed outcome measures in all the three
41
+ batches confirms the positive effect of Yoga intervention on
42
+ psychological fitness. The pattern of changes was consistent
43
+ across all three batches.
44
+ Conclusion: Residential Yoga camp improves the psychological
45
+ fitness among adolescents. Even short term courses are
46
+ effective and induce positive behavioural signatures.
47
+ INTRODUCTION
48
+ According to World Health Organisation, 1.2 billion of the world
49
+ population is between the age of 10 and 19 years and are classified
50
+ as adolescents [1]. This group of individuals are undergoing a
51
+ stage of distinct and formative biological, physiological and social
52
+ transition [2].
53
+ Especially in low and middle-income countries, many psychological
54
+ and substance-use disorders reach a peak in this stressful time
55
+ span of adolescence [3]. According to National Survey on Child
56
+ and Adolescent Well-being (NSCAW II) in USA, high rates of
57
+ mental health problems are seen in teens of all ages [4], increasing
58
+ health problems among young adults [5]. Academic pressures,
59
+ peer pressure, problems with bullying, addiction to social media
60
+ has serious implications for mental and physical well-being of
61
+ adolescents, leading to impaired performance and may contribute
62
+ to the overall growth retention [6-8]. Improving the transition during
63
+ adolescence is one of the priority areas to enhance health care for
64
+ young adults [9].
65
+ Adolescence is the best time for teaching strategies of self-control
66
+ and self-regulation [3]. It is also a phase that is more amenable to
67
+ learning and more receptive to corrective changes if provided by
68
+ intervention programs to improve their mental health.
69
+ Yoga as holistic intervention in which each pupil can find his/her
70
+ unique trajectory of change and improvement is now considered
71
+ as an important intervention for promoting psychological health
72
+ [10]. Yoga shows a reduction in anxiety, depression, psychological
73
+ distress in high risk adolescents [11]. Studies also report positive
74
+ correlation of yoga with self-concept and well-being in adolescents
75
+ [12,13]. Residential yoga program for young adults has shown
76
+ positive effects on perceived stress and quality of life [14]. Meditation
77
+ sessions in schools have beneficial effects across physiological,
78
+ psychosocial, and behavioural outcomes [15]. Additional studies
79
+ of school-based yoga interventions also suggest positive effects of
80
+ yoga on several factors such as concentration, attention, mood,
81
+ anxiety, working memory, anger and self-esteem [16-21]. Many
82
+ reviews suggests that yoga is generally effective at improving
83
+ physical and mental health in children and adolescents [22-25].
84
+ In the available yoga research studies on adolescents, the yoga
85
+ intervention of 3-4 months duration is used in the school setting as
86
+ part of curriculum or before/after school hours with yoga sessions
87
+ ranging from 2 to 3 hours per week for a homogeneous sample.
88
+ Most of them were conducted with special education, high-risk
89
+ samples, and small sample size. According to a literature review,
90
+ residential yoga intervention studies are very few [26].
91
+ An important research question in this area relates to whether
92
+ yoga offers any benefits for student psychological fitness in a
93
+ setting different than school setting. Thus, the present study is to
94
+ explore effect of short term residential yoga intervention program
95
+ on psychological fitness of adolescents. An objective was also to
96
+ examine the effects of residential yoga on psychological fitness
97
+ across different age groups. The present study is a part of a mega
98
+ study to assess overall fitness among adolescents registered
99
+ in the Clinical Trials Registry of India bearing the trail number
100
+ CTRI/2018/02/011709.
101
+ Keywords: Anger, Emotional intelligence, Emotional regulation, Self-concept
102
+ Astha Choukse et al., Effect of Residential Yoga Camp on Psychological Fitness of Adolescents
103
+ www.jcdr.net
104
+ Journal of Clinical and Diagnostic Research. 2018 Aug, Vol-12(8): VC07-VC11
105
+ 8
106
+ MATERIALS AND METHODS
107
+ Design: It is a pre-post yoga interventional study carried out in a
108
+ residential setting (Residential Yoga Camp for high school children).
109
+ Three independent cohorts (Batch 1, 2 and 3) of adolescents
110
+ underwent yoga intervention program in the same setting with same
111
+ guidelines as consecutive studies during April 1-10 (batch 1), April
112
+ 11-20 (Batch 2) and April 21-30 (Batch 3) in year 2016. The duration
113
+ of the study was 10 days with 8 hours per day of classroom yoga
114
+ sessions. All other components were kept consistent and similar
115
+ as far as possible like teachers, living conditions, daily routine and
116
+ dietary plan. This study was conducted in the campus of Swami
117
+ Vivekananda Yoga Anusandhana Samsthana (SVYASA) Yoga
118
+ University, Bengaluru, India.
119
+ Participants: The participants of the study included adolescent
120
+ children studying in English Medium Schools who registered for
121
+ a yoga camp in summer holidays. Healthy adolescents of both
122
+ genders, between the age of 9 and 16 years participated in the
123
+ study. The participants were divided into three batches depending
124
+ on the registration. Batch wise sample size was 148 (87 boys and
125
+ 61 girls), 167 (122 boys and 45 girls) and 195 (121 boys and 74
126
+ girls) in batch 1, 2, and 3 respectively. Since, the Age range 9-16
127
+ is wide considering the rapid changes during adolescents, the
128
+ participants were divided into juniors (9-12 years) and seniors (13-
129
+ 16 years) to evaluate changes. Age wise sample were (93 juniors
130
+ and 55 seniors), (90 juniors and 77 seniors) and (112 juniors and 83
131
+ seniors) in batch 1, 2 and 3 respectively.
132
+ They were further randomly divided into smaller groups of 12-15
133
+ participants which made it easy to implement the intervention. Each
134
+ smaller group was supervised by two teachers for better monitoring.
135
+ All teachers have bachelor degree in yoga and were trained on the
136
+ implementation of the intervention to ensure uniformity.
137
+ Since, the study was conducted as a yoga camp during summer
138
+ holidays, the sample was heterogeneous representative sample
139
+ in nature with subjects from different family backgrounds, socio-
140
+ economic status, cultures and traditions, faiths and different
141
+ academic status (school boards such as state, ICSC, CBSE etc.,).
142
+ Subjects with single parents, acute or chronic health problems, on
143
+ medication, having attended any residential yoga program in the
144
+ last three months were excluded.
145
+ Ethical
146
+ approval
147
+ was
148
+ obtained
149
+ from
150
+ the
151
+ Institutional
152
+ Ethical
153
+ Committee
154
+ of S-VYASA with reference number RES/IEC-SVYASA/64/2015.
155
+ A signed informed consent from parents and a signed informed
156
+ assent from all participants were obtained after explaining the study
157
+ in detail prior to screening.
158
+ Intervention: The modified version of Integrated Yoga Module
159
+ (IYM), based on Pancha kosha model (five layers of existence) as
160
+ explained in Taitairiya Upanishad, comprised of yogic techniques
161
+ that benefit each of the koshas (Gross body-Annamaya Kosha,
162
+ Energy body - Pranamaya Kosha, Emotional Body - Manomaya
163
+ Kosha, Intellectual Body - Vijnanamaya Kosha and Bliss Body-
164
+ Anandamaya Kosha). The module was designed referring to
165
+ various yogic texts on yoga for children and in consultation with
166
+ subject experts. The module was specially designed for the retreat
167
+ with suitably modified yogic techniques to address the needs of
168
+ psychological health development.
169
+ The yoga module included Asana, Pranayama, Relaxation,
170
+ Meditation and also Jnana Yoga (yama niyama concepts) and Bhakti
171
+ Yoga (prayers and chantings). The bhakti yoga sessions included
172
+ chanting and singing while jnana yoga sessions included lectures,
173
+ creativity like role-playing, story-telling, parables, journaling-diary
174
+ entry etc., to drive yama niyama concepts and yogic concept of
175
+ food. Few friendly competitions were kept between groups to
176
+ encourage participation and team building.
177
+ The 8 hour class room yoga sessions consisted of roughly 2 hours
178
+ of Asana practices, 2 hours of Jnana Yoga sessions, 1 hour each
179
+ of Pranayama (breathing exercises coupled with body movements),
180
+ Meditation, Relaxation and Bhakti Yoga. The sessions were
181
+ designed with a mix of events to make the program interesting.
182
+ Detailed schedule is given below in [Table/Fig-1].
183
+ Assessment: Assessment of psychological fitness parameters
184
+ were done using following psychometric tools:
185
+
186
+ Schutte Emotional Intelligence Scale (SEIS): This self-reported
187
+ scale is based on Salovey and Mayer's (1990) original model
188
+ of EI. This is a 33-item scale with test-retest reliability of 0.78
189
+ for total scale scores. Each item has a 5-point Likert's rating
190
+ from 1 (strongly disagree) to 5 (strongly agree). Some item has
191
+ reverse coding. The total score ranges between 33 to 165,
192
+ high score indicates more characteristic EI [27].
193
+
194
+ Cognitive Emotion Regulation Questionnaire (CERQ-short): This
195
+ 18 item self-report questionnaire comprises of nine domains
196
+ (Self-blame,
197
+ Other-blame,
198
+ Rumination,
199
+ Catastrophising,
200
+ Positive refocusing, Refocus on planning, Positive reappraisal,
201
+ Putting into perspective and Acceptance) independent from
202
+ one another. Each item has a 5-point Likert's rating from 1
203
+ (almost never) to 5 (almost always). Each domain has different
204
+ scoring, high score represents often used of cognitive coping
205
+ strategy. Cronbach’s alpha reliability coefficient ranged from
206
+ 0.73 to 0.81 [28].
207
+
208
+ Clinical anger Scale (CAS): This 21 item scale is designed to
209
+ measure different symptoms of clinical anger. Each item has a
210
+ 4-point Likert's rating from 0 (I feel fine) to 3 (I feel completely
211
+ miserable). The total score ranges between 0 to 63, high
212
+ score represents high clinical anger. This scale has reliability
213
+ coefficients of 0.94 (males and females together) [29].
214
+
215
+ Self-Concept: This 30 item self-report scale comprises of five
216
+ domains that make up an adolescent’s self-concept: 1) Athletic
217
+ Competence; 2) Conduct/Morality; 3) Peer Acceptance; 4)
218
+ Physical Appearance; 5) Scholastic Competence. Each item
219
+ has a 5-point rating from 1 (strongly disagree) to 5 (strongly
220
+ Time
221
+ Session
222
+ Details
223
+ 5am
224
+ -
225
+ Wake Up
226
+ 5:30am to 5:45am
227
+ Session 1
228
+ Morning prayer
229
+ 5:45am to 6:45am
230
+ Session 2
231
+ Asana practice (physical postures)
232
+ 6:45am to 7:30am
233
+ Session 3
234
+ Meditation (om meditation, cyclic meditation)
235
+ 7:30am to 8:15am
236
+ -
237
+ Breakfast
238
+ 8:15am to 9.00am
239
+ Session 4
240
+ Social works (altruistic group activities)
241
+ 9.00am to10:00 am
242
+ -
243
+ Bath and wash
244
+ 10:00am to11:00am
245
+ Session 5
246
+ Lectures on concepts of Yoga (yama niyama
247
+ concepts)
248
+ 11:00am to12:00pm
249
+ Session 6
250
+ Pranayama practice
251
+ 12:00pm to 1:00pm
252
+ -
253
+ Lunch
254
+ 1:00pm to 2:00pm
255
+ Session 7
256
+ Relaxation (Deep relaxation technique,
257
+ Quick relaxation technique, Instant relaxation
258
+ technique)
259
+ 2:00pm to 3:30pm
260
+ Session 8
261
+ Indoor activities (parables, creativity,
262
+ chanting)
263
+ 3:30pm to 4:30pm
264
+ Session 9
265
+ Asana practice
266
+ 4:30pm to 5.00pm
267
+ -
268
+ Evening tea, snacks
269
+ 5.00pm to 6:15pm
270
+ -
271
+ Free time
272
+ 6:15pm to 7:15pm
273
+ -
274
+ Dinner
275
+ 7:15pm to 8:30pm
276
+ Session 10
277
+ Happy assembly
278
+ 8:30pm to 9.00pm
279
+ Session 11
280
+ Tranquilling pranayama and meditation
281
+ 9.00pm to 9.15pm
282
+ -
283
+ Milk, snacks
284
+ 9.15pm to 9:30pm
285
+ Session 12
286
+ Diary writing
287
+ 9:30pm
288
+ -
289
+ Sleep
290
+ [Table/Fig-1]: Daily schedule of intervention.
291
+ www.jcdr.net
292
+ Astha Choukse et al., Effect of Residential Yoga Camp on Psychological Fitness of Adolescents
293
+ Journal of Clinical and Diagnostic Research. 2018 Aug, Vol-12(8): VC07-VC11
294
+ 9
295
+ agree). Some item has reverse coding. High score indicates
296
+ positive self-concept [30].
297
+ Socio-Demography Measures: Children and parents completed a
298
+ short demographic questionnaire in order to obtain descriptive data
299
+ for the sample. Screening sheet was filled by parents and children.
300
+ Variables included are age group, gender, handedness, family type,
301
+ sibling hierarchy, father’s age, mother’s age etc.
302
+ Data collection was done on the first (pre-data) and last day (post-
303
+ data) of the program, in small group settings by trained staff. The
304
+ investigator and two teachers were available to clear doubts and
305
+ provide unbiased guidance during the data collection.
306
+ statistical Analysis
307
+ To maintain the confidentiality, the data sheets were coded and
308
+ names and other personal identifiers were omitted during data
309
+ entry. Analysis was done using SPSS (Version 19.0). Change over
310
+ time was evaluated using the paired sample t-test. The results of the
311
+ tests were deemed to be significant if probability values were less
312
+ than 0.05 whereas trends (p<0.1) have also been highlighted.
313
+ RESULTS
314
+ The recruited study sample included adolescents with a mean age
315
+ of 11.84±1.77, 12.22±1.82 and 12.06±1.82 in Batches 1, 2 and
316
+ 3 respectively. Gender ratio in Batch 1 of 148 {87 (58.78%) boys
317
+ and 61 (41.22%) girls}, Batch 2 of 167 {122 (73.05%) boys and
318
+ 45 (26.94%) girls} and Batch 3 of 195 {121 (62.05%) boys and 74
319
+ (37.94%) girls}. All three batches were evaluated for the effects of
320
+ a ten day holistic IYM on SEIS, CERQ-short-form, CAS and Self-
321
+ Concept scale.
322
+ In the present study, overall scores of SEIS in Batch 1 (123.59 to
323
+ 129.86 with p<0.001), Batch 2 (122.27 to 126.04 with p=0.002)
324
+ and Batch 3 (123.63 to 126.15 with p=0.032) increased significantly
325
+ in all three batches. Scores of CERQ kids in Batch 1 (51.83 to 57.11
326
+ with p<0.001), Batch 2 (55.79 to 60.10 with p<0.001) and Batch
327
+ 3 (54.15 to 58.62 with p<0.001) increased significantly in all three
328
+ batches. Self-Concept has not shown significant change in any of
329
+ the batches. Significant decrease was seen in the scores of CAS
330
+ in Batch 1 (13.59 to 10.94 with p<0.001), Batch 2 (16.23 to 14.09
331
+ with p=0.008) and Batch 3 (14.61 to 12.51 with p=0.003) which
332
+ was a positive change [Table/Fig-2].
333
+ The analysis was also carried out separately for juniors and seniors
334
+ in each batch as detailed below.
335
+ The sub-factor analyses within juniors in different batches indicate,
336
+ significant increase in scores of SEIS in Batch 1 juniors, and trend
337
+ of increase was seen in Batch 2 juniors and Batch 3 juniors. Scores
338
+ of CERQ kids in juniors increased significantly in all three batches.
339
+ Self-Concept has not shown significant change in juniors in any of
340
+ the batches. Significant decrease was seen in the scores of CAS
341
+ in Batch 1 juniors and decrease was seen in juniors of Batch 2
342
+ and Batch 3 but not significant. Reduction in clinical anger was a
343
+ positive change [Table/Fig-3].
344
+ The sub-factor analyses within seniors in different batches indicates,
345
+ there was a significant increase in the scores of SEIS in seniors
346
+ in Batch 1 and Batch 2 and non-significant increase was seen in
347
+ Batch 3 seniors. Scores of CERQ in seniors increased significantly
348
+ in all three batches. Self-Concept has not shown significant change
349
+ in seniors in any of the batches. Significant decrease was seen in
350
+ the scores of CAS in seniors in all the three batches. Reduction in
351
+ clinical anger was a positive change [Table/Fig-4].
352
+ DISCUSSION
353
+ The present study demonstrated the positive effects of short
354
+ term integrated yoga module program on psychological fitness in
355
+ residential setting within summer break. Results suggest that yoga
356
+ is an acceptable practice in residential camp by adolescents.
357
+ Present study showed significant improvement in EI. Yoga practices
358
+ may significantly influence the process of self-awareness and
359
+ self-control [31]. Previous research indicates improved EI through
360
+ Variables
361
+ Batch 1 (n=148) Mean±SD
362
+ p-value
363
+ Batch 2 (n=167) Mean±SD
364
+ p-value
365
+ Batch 3 (n=195) Mean±SD
366
+ p-value
367
+ Pre-
368
+ Post-
369
+ Pre-
370
+ Post-
371
+ Pre-
372
+ Pos-
373
+ Emotional Intelligence
374
+ 123.59±16.09
375
+ 129.86±19.30
376
+ <0.001*
377
+ 122.27±15.62
378
+ 126.04±17.98
379
+ 0.002*
380
+ 123.63±17.40
381
+ 126.1518.98
382
+ 0.032*
383
+ Emotional regulation
384
+ strategies
385
+ 51.83±10.68
386
+ 57.11±13.59
387
+ <0.001*
388
+ 55.79±10.15
389
+ 60.10±11.02
390
+ <0.001*
391
+ 54.15±10.47
392
+ 58.62±12.47
393
+ <0.001*
394
+ Self-concept
395
+ 103.36±12.99
396
+ 103.64±14.70
397
+ 0.766
398
+ 101.89±14.10
399
+ 101.58±14.66
400
+ 0.724
401
+ 103.04±13.06
402
+ 102.13±14.67
403
+ 0.315
404
+ Clinical anger
405
+ 13.59±10.44
406
+ 10.94±10.68
407
+ <0.001*
408
+ 16.23±10.77
409
+ 14.09±11.52
410
+ 0.008*
411
+ 14.61±10.59
412
+ 12.51±10.54
413
+ 0.003*
414
+ Variables
415
+ Batch 1 (n=93) Mean±SD
416
+ p-value
417
+ Batch 2 (n=90) Mean±SD
418
+ p-value
419
+ Batch 3 (n=112) Mean±SD
420
+ p-value
421
+ Pre-
422
+ Post-
423
+ Pre-
424
+ Post-
425
+ Pre-
426
+ Post-
427
+ Emotional Intelligence
428
+ 121.46±17.21
429
+ 128.77±20.33
430
+ <0.001*
431
+ 121.32±16.77
432
+ 124.21±16.76
433
+ 0.078
434
+ 120.52±18.50
435
+ 123.76±20.30
436
+ 0.068
437
+ Emotional regulation
438
+ strategies
439
+ 52.20±11.52
440
+ 58.65±13.31
441
+ <0.001*
442
+ 55.09±10.97
443
+ 59.02±10.87
444
+ 0.002*
445
+ 52.48±10.66
446
+ 58.42±13.59
447
+ <0.001*
448
+ Self-concept
449
+ 103.51±12.86
450
+ 103.26±15.16
451
+ 0.836
452
+ 102.62±14.75
453
+ 100.72±15.10
454
+ 0.115
455
+ 104.02±14.26
456
+ 102.35±15.81
457
+ 0.209
458
+ Clinical anger
459
+ 14.74±10.56
460
+ 12.48±11.18
461
+ 0.023*
462
+ 15.58±10.49
463
+ 15.31±11.68
464
+ 0.759
465
+ 14.17±10.60
466
+ 13.23±10.55
467
+ 0.308
468
+ Variables
469
+ Batch 1 (n=55) Mean±SD
470
+ p-value
471
+ Batch 2 (n=77) Mean±SD
472
+ p-value
473
+ Batch 3 (n=83) Mean±SD
474
+ p-value
475
+ Pre-
476
+ Post-
477
+ Pre-
478
+ Post-
479
+ Pre-
480
+ Post-
481
+ Emotional Intelligence
482
+ 127.26±13.29
483
+ 131.74±17.42
484
+ 0.026*
485
+ 123.38±14.18
486
+ 128.18±19.21
487
+ 0.007*
488
+ 127.82±14.88
489
+ 129.39±16.60
490
+ 0.265
491
+ Emotional regulation
492
+ strategies
493
+ 51.20±9.18
494
+ 54.53±13.79
495
+ 0.049*
496
+ 56.61±9.11
497
+ 61.35±11.13
498
+ <0.001*
499
+ 56.41±9.82
500
+ 58.88±10.84
501
+ 0.040*
502
+ Self-concept
503
+ 103.11±13.29
504
+ 104.31±14.02
505
+ 0.480
506
+ 101.03±13.36
507
+ 102.58±14.16
508
+ 0.218
509
+ 101.71±11.18
510
+ 101.82±13.07
511
+ 0.926
512
+ Clinical anger
513
+ 11.67±10.06
514
+ 8.36±9.32
515
+ <0.001*
516
+ 16.97±11.10
517
+ 12.01±11.06
518
+ <0.001*
519
+ 15.19±10.63
520
+ 11.53±10.50
521
+ 0.001*
522
+ [Table/Fig-2]: Paired sample t-test for three cohorts.
523
+ *indicates p<0.05; SD: Standard deviation
524
+ [Table/Fig-3]: Paired sample t-test for juniors.
525
+ *indicates p<0.05; SD: Standard deviation
526
+ [Table/Fig-4]: Paired sample t-test for seniors.
527
+ *indicates p<0.05; SD: Standard deviation
528
+ Astha Choukse et al., Effect of Residential Yoga Camp on Psychological Fitness of Adolescents
529
+ www.jcdr.net
530
+ Journal of Clinical and Diagnostic Research. 2018 Aug, Vol-12(8): VC07-VC11
531
+ 10
532
+ 10
533
+ 20 minutes of meditation over eight weekly sessions in graduate
534
+ students [32]. Evidence suggests increased self-awareness, EI, and
535
+ social skills in response to sitting meditation in youth [15].
536
+ Significant change was seen in overall emotion regulation and
537
+ strategies. Pranayama, breathing practices, chanting and meditation,
538
+ yama-niyama concept driven creativity and games especially
539
+ designed for emotional development may have accounted for
540
+ these positive changes and enhanced coping abilities in the present
541
+ study. Results of present study on emotion regulation is in line with
542
+ previous study done on 159 students with yoga based intervention
543
+ in classroom setting [33].
544
+ Self-concept didn’t change although, some sub-domains of it did
545
+ change. Long and more periodic intervention maybe required to
546
+ change self-concept.
547
+ In the present study, significant reduction in CAS in Batch 1 (13.59
548
+ to 10.94 with p<0.001), Batch 2 (16.23 to 14.09 with p=0.008)
549
+ and Batch 3 (14.61 to 12.51 with p=0.003) shows reduction in
550
+ cognitive, physiological, social, and behavioural symptoms due to
551
+ anger. In present study, specially designed yoga module given in
552
+ residential setting may have accounted for significant improvement
553
+ in anger management and other significant positive psychological
554
+ changes. Improved anger control through yoga module while
555
+ in one previous RCT, insignificant changes in anger control and
556
+ many of the psychological parameters were seen within groups
557
+ and between groups with semester long intervention in school
558
+ curriculum in adolescents [13]. In another RCT, no changes were
559
+ seen in emotional and behavioral functions within yoga group as
560
+ well as between groups [34]. Small sample size and inadequate
561
+ dose of intervention (only 18 hours in 12 weeks) may be reason for
562
+ no changes. All these limitations were well taken care in present
563
+ study in the form of well-organised integrated yoga module and the
564
+ intervention was repeated with three independent cohorts with large
565
+ sample sizes (Batch 1-148, Batch 2-167, Batch 3- 195) . Positive
566
+ findings of another study on psychological measures done in adults
567
+ with 5 day residential yoga program supports the positive findings
568
+ in the present study [35].
569
+ The sub-factor analysis between age groups indicates similar
570
+ changes in EI in both juniors and seniors. Similar positive significant
571
+ changes were seen in emotion regulation in both juniors and seniors
572
+ and consistent in all three batches. Self-concept has not shown any
573
+ significant changes in both juniors and seniors in any of the batches.
574
+ Clinical anger scores were reduced in both age groups but more
575
+ (significant) in seniors showing better anger control in seniors. Results
576
+ of all parameters are consistent in all the three batches showing
577
+ the consistency and confirmed effect of the Yoga intervention.
578
+ Pranayama, meditation and Jnana Yoga activities may help them
579
+ to look for the positive side of events, think positive and respond
580
+ responsibly. Multi-component nature of yoga and intervening effect
581
+ of each technique on various koshas makes it complex to precisely
582
+ assign the effect on any particular parameter. According to sage
583
+ Patanjali, practice of yogic postures leads to expansion of mind and
584
+ ceasing of dualities [36]. Practice of pranayama gives better clarity
585
+ on thoughts. Meditation and Relaxation work on cellular activity or
586
+ metabolic activities. Jnana Yoga sharpens the mind while Bhakti
587
+ yoga calms down the mind.
588
+ The positive outcomes in the study are generally consistent with
589
+ previous studies of yoga, meditation in school settings, although
590
+ the use of different outcome measures and research designs
591
+ precludes a precise comparison [37,38]. The results showed
592
+ significant improvement in all assessed outcome measures except
593
+ self-concept in all three consecutive studies and reflects a positive
594
+ change. Since, this is residential setting and participants were from
595
+ many different cities (diverse data), it was not practically feasible to
596
+ have active control group. So, three independent cohorts with large
597
+ and matched sample size were done with same intervention to test
598
+ the repeatability and consistency of the effect. Consistent similar
599
+ trend of results in all three cohorts confirms the positive effect of
600
+ given integrated yoga module in adolescents.
601
+ The strength of the study lies in including heterogeneous
602
+ representative samples with relatively bigger sample size. Multiple
603
+ components in the yoga module can be seen as limitation as well
604
+ as the strength. Limitation in terms of not able to assign the effect
605
+ to any particular component of module. It is a strength because
606
+ of strictly following the comprehensive integrated holistic approach
607
+ of Yoga as said in the classical texts. The integrated approach to
608
+ yoga comprises of yogic postures (asanas), breathing techniques
609
+ (pranayama), relaxations (guided relaxation techniques), meditations
610
+ (guided meditations), knowledge points (Jnana Yoga) and prayers
611
+ and chanting (Bhakti Yoga). Guided relaxation techniques such as
612
+ deep relaxation technique, quick relaxation technique and instant
613
+ relaxation technique also include postures and body movements
614
+ and breathing techniques that provide flexion and extension
615
+ to muscles. Guided meditations include different postures and
616
+ concepts of focusing which warrants establishing certain physical
617
+ postures with hand gestures (mudras).
618
+ In Yogic parlance, concept of human existence comprises of five
619
+ layers-the gross body, the energy body, the emotional body, the
620
+ intellectual body and the bliss body. Integrated approach to yoga
621
+ is employing specific yogic techniques to address all the layers of
622
+ existence in order to get holisticity or overall health.
623
+ The integrated module of yoga especially designed for yoga camp
624
+ for adolescence was very well accepted by the children and received
625
+ complements from the parents too. Maintaining uniformity in
626
+ execution of intervention and overall conducting of program across
627
+ the three batches acts as a replication of the study. The similar
628
+ results/trends in each batch not only confirm the effectiveness
629
+ of the program in establishing the psychological fitness among
630
+ adolescents but also nullifies the lacuna arising due to absence of
631
+ active control group.
632
+ LIMITATION
633
+ The absence of control may act as a limitation of the study. However,
634
+ by repeating the intervention thrice with three different batches, this
635
+ limitation was tried to overcome. As there were no indigenous scales
636
+ available to study the psychological parameters in the Indian setting,
637
+ the psychometric scales that were developed by Westerners, used
638
+ in the study. This may also be considered as another limitation of
639
+ the study.
640
+ CONCLUSION
641
+ The 10 day Residential Yoga camp is effective in improving the
642
+ psychological fitness among adolescent children especially EI,
643
+ cognitive emotional regulation strategies and anger management.
644
+ The findings also highlight the potential of short term integrated yoga
645
+ in bringing significant improvements in psychological constructs
646
+ among adolescents. Further the study also demonstrates the
647
+ feasibility and effectiveness of residential integrated yoga program
648
+ for adolescents.
649
+ ACKNOWLEDGEMENTs
650
+ The authors would like to extend their heartiest thanks and
651
+ appreciation to the University and its faculty, for allowing the study
652
+ to be conducted during the residential summer camp. The authors
653
+ thank all the participants and parents for their support. The authors
654
+ also thank Mrs. Alakamani, PhD for her critical comments on the
655
+ manuscript.
656
+ REFERENCES
657
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658
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659
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+ Khalsa SBS, Butzer B, Shorter SM, Reinhardt KM, Cope S. Yoga reduces
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+ Quach D, Jastrowski Mano KE, Alexander K. A randomized controlled trial
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+ Mani TLA, Sharma MK, Marimuttu P
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+ , Omkar SN, Nagendra HR. Yogic management
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+ Telles S, Singh N, Bhardwaj AK, Kumar A, Balkrishna A. Effect of yoga or physical
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+ exercise on physical, cognitive and emotional measures in children: a randomized
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+ controlled trial. Child Adolesc Psychiatry Ment Health. 2013;7(1):37.
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+ Birdee GS, Yeh GY, Wayne PM, Phillips RS, Davis RB, Gardiner P
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+ applications of yoga for the pediatric population: a systematic review. Academic
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+ Pediatrics. 2009;9:212-20.
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+ Kaley-Isley LC, Peterson J, Fischer C, Peterson E. Yoga as a complementary
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+ therapy for children and adolescents: a guide for clinicians. Psychiatry (Edgmont).
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+ 2010;7(8):20-32.
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+ Greenberg MT, Harris AR. Nurturing mindfulness in children and youth: current
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+ state of research. Child Dev Perspect. 2012;6(2):161-66.
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+ Davidson RJ, Dunne J, Eccles JS, Engle A, Greenberg M, Jennings P
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+ , et al.
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+ Contemplative practices and mental training: prospects for american education.
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+ Child Dev Perspect. 2012;6(2):146-53.
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+ Serwacki ML, Cook-Cottone C. Yoga in the schools: a systematic review of the
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+ [26]
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+ literature. Int J Yoga Therap. 2012;22(22):101-09.
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+ Schutte NS, Malouff JM, Bhullar N. The Assessing Emotions Scale. In 2009. Pp.
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+ Garnefski N, Kraaij V. Cognitive emotion regulation questionnaire - development
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+ of a short 18-item version (CERQ-short). Pers Individ Dif. 2006;41(6):1045-53.
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+ Snell WE, Gum S, Shuck RL, Mosley JA, Kite TL. The clinical anger scale:
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+ Preliminary reliability and validity. J Clin Psychol. 1995;51(2):215-26.
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+ Hadley AM, Hair EC, Moore KA. Assessing what kids think about themselves :
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+ a guide to adolescent self-concept for out-of-school time program practitioners.
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+ Child Trends. 2008;32.
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+ Jakovljevic MDB. The Contribution of Yoga to the Development of Emotional
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+ Competences. In: P
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+ .Nikic, editor. “Yoga - the Light of Microuniverse” of the
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+ stress and negative mental health. Stress Heal. 2010;26(2):169-80.
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+ Frank JL, Kohler K, Peal A, Bose B. Effectiveness of a school-based yoga
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+ program on adolescent mental health and school performance: findings from a
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+ randomized controlled trial. mindfulness (N Y). Mindfulness; 2017;8(3):544-53.
795
+ Haden SC, Daly L, Hagins M. A randomised controlled trial comparing the impact
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+ [34]
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+ of yoga and physical education on the emotional and behavioural functioning of
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+ middle school children. Focus Altern Complement Ther. 2014;19(3):148-55.
799
+ Braun TD, Park CL, Conboy LA. Psychological well-being, health behaviours,
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+ [35]
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+ and weight loss among participants in a residential, Kripalu yoga-based weight
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+ loss program. Int J Yoga Therap. 2012;(22):9-22.
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+ Swami Satyananda Saraswati. Four Chapters on Freedom. Munger: Yoga
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+ [36]
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+ Publications Trust, Bihar School of Yoga; 1976. pp. 400.
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+ Wisner BL, Jones B, Gwin D. School-based meditation practices for adolescents:
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+ a resource for strengthening self-regulation, emotional coping, and self-esteem.
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+ Child Sch. 2010;32:150-59.
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+ Hagen I, Nayar US. Yoga for children and young people’s mental health and well-
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+ [38]
812
+ being: research review and reflections on the mental health potentials of yoga.
813
+ Front Psychiatry. 2014;5:35.
814
+ PARTICULARS OF CONTRIBUTORS:
815
+ 1. Research Scholar, Department of Yoga and Humanities, S-VYASA Yoga University, Bengaluru, Karnataka, India.
816
+ 2. Scientist, CAM Program, HCG Enterprise Ltd., Bengaluru, Karnataka, India.
817
+ 3. The Chancellor, S-VYASA Yoga University, Bengaluru, Karnataka, India.
818
+ NAME, ADDRESS, E-MAIL ID OF THE CORRESPONDING AUTHOR:
819
+ Dr. Astha Choukse,
820
+ Research Scholar, S-VYASA Yoga University, # 19, Eknath Bhawan, Govipurum circle, Kempagowda Nagar,
821
+ Bengaluru-560019, Karnataka, India.
822
+ E-mail: [email protected]
823
+ Financial OR OTHER COMPETING INTERESTS: None.
824
+ Date of Submission: Apr 17, 2018
825
+ Date of Peer Review: May 02, 2018
826
+ Date of Acceptance: Jun 28, 2018
827
+ Date of Publishing: Aug 01, 2018
subfolder_0/Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents.txt ADDED
@@ -0,0 +1,761 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ 1/27/2021
2
+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
3
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
4
+ 1/16
5
+ Int J Yoga. 2019 May-Aug; 12(2): 139–145.
6
+ doi: 10.4103/ijoy.IJOY_29_18: 10.4103/ijoy.IJOY_29_18
7
+ PMCID: PMC6521760
8
+ PMID: 31143022
9
+ Effect of Residential Yoga Camp on Psychosocial Fitness of
10
+ Adolescents
11
+ Astha Choukse, Amritanshu Ram, and HR Nagendra
12
+ Department of Yoga and Humanities, S-VYASA Yoga University, Bengaluru, Karnataka, India
13
+ CAM Department, HCG Enterprises Ltd., Bengaluru, Karnataka, India
14
+ Address for correspondence: Dr. Astha Choukse, S-VYASA Yoga University, Bengaluru Eknath Bhawan, No. 19,
15
+ Gavipuram Circle, Kempegowda Nagar, Bengaluru - 560 019, Karnataka, India. E-mail:
16
17
+ Received 2018 May; Accepted 2018 Oct.
18
+ Copyright : © 2019 International Journal of Yoga
19
+ This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-
20
+ NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-
21
+ commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
22
+ Abstract
23
+ Background:
24
+ Adolescence is a key phase of socialization, where improved psychosocial fitness helps to promote
25
+ socioeconomic productivity in societies. Psychosocial fitness also has an impact on the academic
26
+ performance, overall health, and quality of life, throughout life. The present study evaluates the effect of
27
+ yoga intervention on psychosocial fitness among adolescents.
28
+ Materials and Methods:
29
+ A single group, pre and post yoga interventional study was carried out in three independent cohorts
30
+ (batches 1, 2, and 3), having sample size of 148, 167, and 195 respectively. A 7-day integrated yoga
31
+ intervention was given in a residential setting. Psychosocial assessments included social competence,
32
+ empathy, altruism, parent relationship, and peer friendship. Data were collected from the participants and
33
+ their parents using respective versions of the scales. While pre- and post-data were collected from all the
34
+ adolescent participants, pre- and post-data from parents were collected for 340 and 43 parents only. The
35
+ objective of the analyses was to evaluate the effect of the yoga program and check the consistency of these
36
+ effects.
37
+ Results:
38
+ Significant changes (P < 0.05) were seen in social competence, empathy, and altruism in batches 2 and 3,
39
+ whereas changes in batch 1 showed nonsignificant improvements. Analyses of the parental data indicated a
40
+ significant improvement in parent relationship (P = 0.035) and also nonsignificant improvement in all
41
+ other outcomes.
42
+ 1
43
+ 1
44
+ 1/27/2021
45
+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
46
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
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+ 2/16
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+ Conclusion:
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+ Results suggested that yoga intervention might help in improving psychosocial fitness in adolescents. It
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+ also helped to demonstrate that administering yoga was acceptable and feasible in a residential setting.
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+ Keywords: Adolescents, empathy, parent relationship, psychosocial fitness, social competence, yoga
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+ Introduction
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+ Adolescence is a time of tremendous growth, potential and socioemotional development[1] along with
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+ considerable risk, during which social contexts exert powerful influences.[2] Psychosocial fitness is
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+ defined as developing a sense of personal identity which will continue to influence behavior and
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+ development for the rest of a person's life.[3] Psychosocial fitness among adolescents plays an important
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+ role, considering the need for social integration and the search for self-assertion and independence.[4] It is
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+ marked by a set of learned behaviors displayed by them in the interpersonal context and their performance
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+ level for the demands of a social situation. Adolescence is a crucial period of socialization that demands
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+ greater attention to the mental well-being, failing which may lead to mental health consequences that may
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+ remain throughout life and reduce the capacity of societies' socioeconomic productivity.[5] Appropriate
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+ psychosocial development of adolescent is an indicator of sound academic performance; physical health;
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+ and adequate social, emotional, and psychological health. Psychosocial fitness ultimately contributes in
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+ reducing the risk of psychosocial and behavioral problems, violence, crime, teenage pregnancy, and misuse
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+ of drugs and alcohol.[6] Psychosocial fitness includes how one feels and perceives about their societal
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+ relationships that has key factors such as empathy, social competence, altruism, and so forth.
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+ Empathy, a key component of all social functioning, is an effective cognitive ability to adopt the
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+ perspective of others in order to understand their feelings, thoughts, or actions.[7] Altruism is a
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+ motivational state, thought, and action with the ultimate goal of increasing other's welfare without
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+ considering one's own well-being.[8] Weak social competencies are thought to limit an adolescent's ability
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+ to establish and maintain friendships. Low levels of perceived social competence and negative parental
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+ interactions are associated with depressive symptoms.[9] During the adolescent period, their relationships
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+ with family and peers undergo dramatic changes and shifts. Strong positive relationships with both family
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+ and friends are vital for healthy social and emotional development.[10] The quality of the parent–child
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+ relationship affects the adolescent's self-concept, which in turn affects the adolescent's integration into the
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+ world of peers.[11]
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+ Literature on interventional studies, promoting psychosocial fitness are not many and are not focused to
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+ target adolescents, their caregivers, and community stakeholders.[6,12] A systematic review suggested that
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+ a multimodal and multidisciplinary group-based approach was found to be an effective interventional
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+ strategy.[13] One of the studies suggested psychosocial assets and well-being, which could be improved
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+ among adolescent girls through a brief school day program.[14]
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+ Since psychosocial fitness is largely to do with how we deal with the mind, yoga may play a role in its
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+ enhancements. Yoga is a science of mind control, delineated in historical Indian texts, and comprises of
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+ holistic multicomponent practices and considered as an effective intervention to promote the overall
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+ fitness. A number of studies have been done on adolescent mental health involving yoga as an intervention
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+ that has shown benefits[15,16,17] No studies thus far have assessed the psychosocial benefits of yoga on
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+ adolescents. Further, adolescence being at the crucial developmental stage, highly vulnerable to biological,
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+ psychological, social, and environmental factors and are in a period where they are more receptive to the
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+ corrective measures. This warrants considering their physical and psychological aspects while developing
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+ intervention programs/strategies to improve social health among adolescents. Considering the psychosocial
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+ benefits seen by the practice of yoga in other populations, there is enough to warrant an exploration in the
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+ adolescent population.
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+ 1/27/2021
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+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
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+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
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+ 3/16
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+ The aim of the present study was to explore the efficacy of short-term integrated residential yoga
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+ intervention on parameters of psychosocial fitness in adolescents. The objective was to evaluate the effects
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+ of yoga through a single group pre- and post-design for each cohort. This included eliciting data from
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+ adolescents and their parents and engaging in subgroup analyses of different age groups.
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+ This study included secondary data of a registered study (CTRI/2018/02/011709) that evaluated physical,
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+ psychological, and social fitness among adolescents.
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+ Materials and Methods
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+ Participants
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+ The participants of the study included healthy adolescent children between the ages of 9 and 16 years,
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+ studying in English-medium schools. Participants with single parents, acute or chronic health problems, on
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+ medication, having attended any residential yoga program in the last 3 months were excluded from the
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+ study. They were selected from children who were registered to attend three 7-day residential summer
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+ yoga programs that naturally formed the three cohorts for the study. Children were screened for suitability
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+ and once their parents provided consent along with the children's assent, were subjected for the
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+ preassessment. Considering the rapid psychosocial changes during the adolescence, the participants were
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+ further subdivided into juniors (9–12 years) and seniors (13–16 years).
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+ Children from each batch were further randomly divided into smaller groups of 12–15 participants, with
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+ two teachers, which made it easy to implement the intervention. Teachers included undergraduates in yoga
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+ and were trained on the implementation of the intervention to ensure uniformity.
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+ Since the selection of participants was from a summer yoga camp during the summer break, there was
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+ good heterogeneity of the sample with respect to family backgrounds, socioeconomic strata, cultures,
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+ traditions, faiths, and academic backgrounds.
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+ Ethical approval was obtained from the Institutional Ethical Committee of S-VYASA with the reference
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+ number RES/IEC-SVYASA/64/2015.
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+ Assessment
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+ The psychosocial fitness was assessed by the outcome measures of social competence, empathy, altruism,
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+ parent relationship, and peer friendship. Data were collected from the adolescents before and after the
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+ intervention. Data of empathy, altruism, and parental and peer relationship, from the parents, were
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+ collected before and after 3 months of the intervention using the parent versions of the respective scales.
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+ This would help comparing the opinions of the parents with that of their children.
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+ The psychometric scales used are developed and validated by Child Trends[18,19] and they are (a) Social
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+ Competence Questionnaire – 9-item scale with Cronbach's alpha of 0.79; (b) Teen Empathy – 4-item scale
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+ with Cronbach's alpha 0.84; (c) Teen Altruism – 4-item scale with Cronbach's alpha 0.80; (d) Positive
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+ parent relationship – 6-item scale with Cronbach's alpha 0.92; and (e) Peer friendship – 5-item scale with
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+ Cronbach's alpha 0.91.
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+ Design
133
+ The present study is a single group pre- and post-yoga interventional study carried out during a residential
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+ yoga camp for the adolescents. Data were collected from both children, as well as parents, using respective
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+ questionnaires. Three independent 10-day residential camps for personality development were organized
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+ during the summer by VYASA organization. While the duration of camp was 10 days, the yoga
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+ 1/27/2021
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+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
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+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
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+ 4/16
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+ intervention schedule was followed from day 2 to day 8 across the three camps. Eligible adolescents
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+ underwent the same yoga intervention program with the instructors, living conditions, daily routine, and
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+ dietary plan.
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+ Intervention
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+ The modified version of Integrated Yoga Module, based on Pancha Kosha model (five layers of existence)
146
+ as explained in Taittiriya Upanishad comprised of yogic techniques that benefit each of the Koshas (gross
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+ body – annamaya kosha; energy body – pranamaya kosha; emotional body – manomaya kosha; intellectual
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+ body – vijnanamaya kosha; and bliss body – anandamaya kosha). The module was based on various yogic
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+ texts, books on yoga for children, and was modified in consultation with the subject experts with more
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+ than 25 years of experience in conducting these camps.
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+ The yoga module included Asana, Pranayama, Relaxation, Meditation, and also Jnana yoga (Yama Niyama
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+ concepts) and Bhakti yoga (prayers and bhajans). The bhakti-yoga sessions included mantra chanting and
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+ singing, whereas Jnana yoga sessions included lectures, creativity such as role playing, storytelling,
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+ parables, journaling diary entry, and so forth to drive the Yama Niyama concepts and yogic concepts of
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+ food. Few competitive activities were organized between groups to encourage participation and team
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+ building. The sessions were administered in a manner that kept the program engaging and interesting to the
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+ selected age group. Details of the intervention are summarized in Table 1.
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+ Data extraction
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+ Data collection was done for the children on the 1 day (predata) and 9 day (postdata) of the camp, in
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+ small group settings by trained researchers. The investigators and two teachers were available to clear
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+ doubts and provide unbiased guidance during the data collection. Data collection from the parents was
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+ done on the 1 day (predata), when they came to drop their wards to the camp, and after 3 months
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+ (postdata) as a follow-up data, by sending the questionnaire through E-mail.
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+ All the recruited students completed the questionnaires before and after the intervention. A total of 340
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+ parental responses were collected before the intervention and only 43 parental responses were obtained
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+ after 3 months as a follow-up data (postdata). Post 3 months data obtained from parents served to evaluate
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+ if the yoga intervention had long-term and sustained effects on the social behavior. Only 43 pre- and post-
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+ parental data were available that made it difficult to draw strong conclusions on the parental opinions. The
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+ reasons for attrition in parental predata were (a) parents were not available at the commencement of the
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+ camp, (b) refusal to participate, and (c) lack of English language fluency. Several parents did not respond
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+ to the follow-up assessments despite repeated E-mail and reminders due to their preoccupations or
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+ disinterest. Hence, the analyses that involved data from adolescents and their parents were from 43
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+ participants.
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+ Data analyses
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+ To maintain confidentiality, the data sheets were coded and personal identifiers were omitted during the
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+ data entry. Analysis was done using SPSS Inc. SPSS for Windows, Version 16.0. Chicago, Change over
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+ time was evaluated using the paired samples t-test. The results of the tests were deemed to be significant if
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+ probability values were <0.05, whereas trends (P < 0.1) were also highlighted.
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+ Results
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+ The effect of a short-term residential yoga intervention was evaluated for its benefits on social
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+ competence, empathy, altruism, parent relationship, and peer friendship by a single-arm, pre- and post-
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+ study in three individual cohorts of adolescent children. The three cohorts comprised 148 (57.8% male)
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+ st
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+ th
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+ st
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+ 1/27/2021
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+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
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+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
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+ 5/16
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+ (62.8% juniors), 167 (73.1% male) (53.9% juniors) and 195 (62.1% male) (57.4% juniors), with a mean
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+ age of 11.84 ± 1.77, 12.22 ± 1.82 and 12.06 ± 1.82, respectively. Demographic and anthropometric data are
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+ presented in Table 2.
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+ As seen in Table 3, comparing pre- and post-data for each of the cohorts showed that there were no
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+ significant changes, observed in the first batch, whereas the subsequent batches showed statistically
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+ meaningful changes in teen empathy. Social competence and altruism was significant in the third batch. An
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+ interesting observation was that while all changes, although nonsignificant, were in the positive direction,
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+ peer friendship had changed negatively.
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+ Analysis of the junior subgroup, as shown in Table 4, indicates that empathy significantly improved in all
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+ the three batches. Social competence improved significantly in the first batch and altruism improved
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+ significantly in the third batch. It was interesting to note that unlike the overall result, peer friendship had
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+ increased, although nonsignificantly in two of the three batches. All the other variables also showed a
202
+ nonsignificant positive change.
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+ Analysis of the senior subgroup, as shown in Table 5, indicates that there were no significant positive
204
+ changes in any of the outcomes in batch 1, but social competence and empathy changed positively in the
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+ subsequent batches. Altruism also showed a significant positive change in the third batch. Peer friendship
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+ showed a significant reduction in the first batch, which was not seen in the subsequent batches.
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+ Additional analyses compared (n = 340) predata of the outcomes between the adolescents and their parents
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+ (200 juniors), as seen in Table 6. There were significantly lower altruism and peer friendship and
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+ significantly higher parent relationship reported by parents when compared with their children.
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+ Changes in empathy, altruism, parent relationship, and peer friendship were compared between the
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+ responses received by the 43 adolescents and their parents, as shown in Table 7. It was interesting to note
212
+ that the adolescents reported a significant change (P = 0.003) in altruism and the parents reported a
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+ significant change (P = 0.035) in parent relationship as a result of the yoga intervention.
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+ Discussion
215
+ The objectives of this study were to evaluate the effects that a 7-day residential yoga intervention would
216
+ bring on measures of psychosocial fitness in three independent cohorts through a single group pre- and
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+ post-study. The secondary objective was to compare if these effects were also observed by the parents.
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+ Statistically significant increase in measures of empathy, social competence, and altruism were
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+ inconsistent between the three cohorts and between the age groups, except for an increase in empathy,
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+ which was seen across all the three cohorts among juniors.
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+ Psychosocial fitness stems from empathy or being able to put oneself in another's situation in order to
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+ understand their feelings. This in turn impacts one's behavior and makes them better connect with their
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+ peers, parents, and surroundings at large. Altruism is also a resultant prosocial behavioral pattern of
224
+ increased empathy,[20,21] and these patterns of psychosocial behavior define an individual's social
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+ competence. Building self-awareness is the key to developing skill of emotional appraisal and control,
226
+ whereby positive social competencies might be achieved. Yoga, being the science of holistic well-being,
227
+ comprises of practices that encourage internalization and development of self-awareness, and thereby,
228
+ increase the capacity of self-control.[22] Yoga practices through a sequence of awareness building and
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+ relaxing practices evoke a deeper calming effect, which helps students get into a frame of mind, conducive
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+ to learning and is distinct from the effects of physical exercise alone.[16] The results of our study may
231
+ suggest that 7 days of yoga practices may have only been adequate to show a change in empathy scores
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+ and a longer intervention might have been required to show consistent impact on the downstream
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+ 1/27/2021
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+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
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+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
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+ 6/16
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+ behavioral patterns. Other studies have also indicated that Karma Yoga,[23] yoga practices, mindfulness,
238
+ [24] and prayer[25] have an influence over the aspects of empathy, altruistic behavior, and social
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+ competence in adolescents.
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+ Variables of empathy, altruism, and peer and parental relationship are easily under or overestimated while
241
+ using a self-reported instrument. Thus, parallel data of these variables were also sought from the parents. It
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+ is, however, known that the parents are not able to report accurately, certain aspects of their adolescent
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+ children's behavior.[26] Comparison of the corresponding adolescent and parent data provided rich
244
+ information on the discrepancies of opinions held by each of them. Comparing baseline values between
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+ parents and their children, it was interesting to note that apart from having an agreement in scores of
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+ empathy, all other outcomes were significantly different. It was more interesting that parents opined that
247
+ their children had very positive parental relationship and a very-low peer friendship, but their children
248
+ thought otherwise. Noting these discrepancies, we further assessed the changes in these parameters
249
+ resulting from the yoga intervention in both these populations.
250
+ In the present study, adolescents reported only a trend of improvement (P = 0.095) in parental relationship
251
+ as a result of the yoga intervention, but the parents reported a significant (P = 0.035) improvement, 3
252
+ months after the intervention. However, unlike what was expected, the parameters of peer friendship
253
+ reduced significantly (P = 0.031) in seniors of the first batch.
254
+ A positive parent–child relationship is an essential component of adolescent development. During this
255
+ transitional age, the concept and opinions of oneself grow stronger, taking precedence over that of their
256
+ parents[27] and conflicts with parental ideologies emerge. Retaining a healthy relationship with parents
257
+ and peers plays a crucial role in an individual's psychological and physical health.[28] Components of the
258
+ intervention also comprised activities that were geared to provide calmness and balance to the mind
259
+ (Pranayama, meditation) and promoted the quality of relationships and moral behavior (Yama Niyama) in
260
+ adolescents.[29] This effect, as observed by the parents, 3 months after the intervention could suggest a
261
+ sustained change in parental relationship as a result of yoga. The adolescent data, collected before and after
262
+ a 7-day intervention, might not have been adequate to appraise the change. Furthermore, not having the
263
+ exposure with the parents during this time might have made it nonconducive for its appraisal. The trend
264
+ seen in the present study is in line with a previous randomized controlled trial[30] evaluating changes in
265
+ socioemotional competencies, such as empathy and prosociality, as a result of a yoga program delivered
266
+ twice a week for 12 weeks to 125 low socioeconomic adolescents.
267
+ The point of reference for peer friendship during the predata was an established set of peers from their
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+ native setting, whereas the postdata elicited had a point of reference of peers from within the camp. This
269
+ subtle disparity was appreciated more in seniors, which had resulted in a significant drop in scores of peer
270
+ friendship, whereas in juniors there was a higher degree of adaptability indicated by a nonsignificant
271
+ increase in peer friendship in the first and third batches.
272
+ This was the first time that an interventional study of this scale, in adolescents had been attempted. The
273
+ intervention being tested was also developed in a comprehensive manner, referring authentic Indian texts
274
+ of yoga, modern-day literature of its interpretations, and modifying it through several iterations with
275
+ subject experts in yoga, psychology, and adolescent health. An intervention that is focused on the holistic
276
+ psychosocial development of adolescents, administered in the group setting has shown to be more effective
277
+ in improving social skills, if there has been at least one medical health professional or an adolescent
278
+ psychologist involved in its development.[13] This ensured that while the premise of yoga is grounded to
279
+ its authentic roots, the practices themselves were able to elicit the interest of the selected age group.
280
+ Qualitative feedback elicited from the adolescents and parents on all aspects of the camp was very good.
281
+ Considering that other literature provided stronger evidence to the benefits of yoga among adolescents, an
282
+ attempt was also made to evaluate a residential camp setting as a way to impart these practices to this age
283
+ group. To provide a multidimensional intervention like yoga in such large numbers, the study employed
284
+ 1/27/2021
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+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
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+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
287
+ 7/16
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+ close to 40 trainers who were rigorously trained and monitored for uniform quality of instruction. In
289
+ addition, capture of parental data along with corresponding data from their children was a novel endeavor,
290
+ although the results had not proven to be what was anticipated.
291
+ The inconsistency in the results demonstrate that yoga being a multimodal set of activities, is heavily
292
+ dependent on how well each person is able to internalize these practices and drive the change of mindset.
293
+ The absence of a control group heavily undermined the conclusions drawn in this study. Considering this,
294
+ the design was reworked at detecting the repeatability of the results. Contrary to our speculation, the
295
+ internal validity of the results, by virtue of the inconsistency of results, was also poor. Adolescent data
296
+ should have also been collected along with that of their parents, post 3 months to evaluate the sustained
297
+ changes in the relationships. The controlled environment of the camp setting might have only provided the
298
+ required information needed for the psychosocial improvement and evaluating the same after the
299
+ participants had been given an opportunity to express it in their existing relationships would have provided
300
+ a fairer comparison. Secondary qualitative data, in anticipation of a nonconclusive result, could have been
301
+ premeditated, which would have given a rich feedback on the changes needed in the module and its
302
+ implementation. Future studies, while having a more robust design, should not just be able to detect the
303
+ effects but also identify possible predictors and mechanisms associated with improvement in psychosocial
304
+ fitness. Long-term interventions, homogenous samples, and improved and focused interventions also
305
+ remain as improvements in the future researches in this field.
306
+ Conclusion
307
+ Adolescence is a phase of emotional and psychosocial transition and yoga, a technique of mind control,
308
+ which could potentially help in improving holistic personality. The efficacy of a 7-day yoga intervention in
309
+ improving psychosocial fitness was evaluated and showed that the feeling of empathy increased
310
+ significantly. There was a sporadic increase in altruism, social competence, and parent relationships in
311
+ some cohorts while peer relationship deteriorated. Parents providing data on their children's perceived
312
+ level of altruism, empathy, and relationship with parents and peers, before and after 3 months of
313
+ intervention highlighted the discrepancy in their understanding of their children and also their ability to
314
+ perceive the changes while the children could not. Design and implementation flaws, as a result of
315
+ resources, limit from stating the findings of these studies as conclusive evidence but helps to plan more
316
+ robust and intricate studies to assess the specific benefits of yoga and its mechanisms.
317
+ Financial support and sponsorship
318
+ Nil.
319
+ Conflicts of interest
320
+ There are no conflicts of interest.
321
+ Acknowledgment
322
+ The authors would like to extend their heartiest thanks and appreciation to the University and its faculty
323
+ for allowing the study to be conducted during the residential summer camp. The authors thank all the
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+ participants and parents for their support. The authors also thank Mrs. Alakamani, PhD for her comments
325
+ on the manuscript.
326
+ References
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+ 24. Birnie K, Speca M, Carlson LE. Exploring self-compassion and empathy in the context of
392
+ mindfulness-based stress reduction (MBSR) Stress Health. 2010;26:359–71.
393
+ 25. Vasiliauskas SL, McMinn MR. The effects of a prayer intervention on the process of forgiveness.
394
+ Psychol Relig Spiritual. 2013;5:23–32.
395
+ 26. Verhulst FC, van der Ende J. Agreement between parents' reports and adolescents' self-reports of
396
+ problem behavior. J Child Psychol Psychiatry. 1992;33:1011–23. [PubMed: 1400684]
397
+ 27. Yaacob MJ. Parent-adolescent relationships and its association to adolescents' self-esteem. Malays J
398
+ Med Sci. 2006;13:21–4. [PMCID: PMC3347898] [PubMed: 22589586]
399
+ 28. Johnson G, Kent G, Leather J. Strengthening the parent-child relationship: A review of family
400
+ interventions and their use in medical settings. Child Care Health Dev. 2005;31:25–32. [PubMed:
401
+ 15658963]
402
+ 29. Wisner BL, Jones B, Gwin D. School-based meditation practices for adolescents: A resource for
403
+ strengthening self-regulation, emotional coping, and self-esteem. Child Sch. 2010;32:150–9.
404
+ 30. Velásquez AM, López MA, Quiñonez N, Paba DP. Yoga for the prevention of depression, anxiety, and
405
+ aggression and the promotion of socio-emotional competencies in school-aged children. Educ Res Eval.
406
+ 2015;21:407–21.
407
+ Figures and Tables
408
+ 1/27/2021
409
+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
410
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
411
+ 10/16
412
+ Table 1
413
+ Summary of integrated yoga intervention program
414
+ Name of the intervention session
415
+ Duration
416
+ Prayer session
417
+ 15 min
418
+ Asana sessions: Standing postures, sitting postures, prone postures, inverted postures, supine postures
419
+ 2 h
420
+ Meditation session: Om meditation, cyclic meditation
421
+ 45 min
422
+ Pranayama session: Conscious breathing, sectional breathing, full yogic breathing, dynamic (Bhastrika,
423
+ Kapalbhati), balancing (Anuloma-viloma), cooling (Shitli), tranquilizing (Bhramari)
424
+ 1 h
425
+ Relaxation session: IRT, QRT, DRT
426
+ 1 h
427
+ Lecture session: Yama Niyama concepts, physical adolescent health, emotional appraisal and control,
428
+ prosocial behavior
429
+ 1 h
430
+ Chanting and singing session: 18 verses from Bhagavad Gita, devotional songs, patriotic songs
431
+ 1 h
432
+ Creativity sessions: Karma yoga (altruistic group activities), role modeling, parables, storytelling, diary
433
+ writing, competitions
434
+ 2 h
435
+ Game session: Yogic games, group awareness
436
+ 1 h
437
+ Happy assembly: Cultural program
438
+ 1 h
439
+ IRT=Instant relaxation technique, QRT=Quick relaxation technique, DRT=Deep relaxation technique
440
+ 1/27/2021
441
+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
442
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
443
+ 11/16
444
+ Table 2
445
+ Demographic and anthropometric measures
446
+ Variables
447
+ Mean±SD
448
+ Batch 1
449
+ Batch 2
450
+ Batch 3
451
+ Age
452
+ 11.84±1.77
453
+ 12.22±1.82
454
+ 12.06±1.82
455
+ Father age
456
+ 43.54±4.63
457
+ 43.61±5.61
458
+ 43.56±4.40
459
+ Mother age
460
+ 38.64±4.15
461
+ 38.12±3.87
462
+ 38.16±4.00
463
+ Height
464
+ 148.26±12.81
465
+ 149.51±12.75
466
+ 150.5±13.29
467
+ Weight
468
+ 43.42±13.20
469
+ 41.31±12.28
470
+ 44.03±12.35
471
+ BMI
472
+ 18.80±3.82
473
+ 17.75±3.99
474
+ 18.8±4.98
475
+ SD=Standard deviation, BMI=Body mass index
476
+ 1/27/2021
477
+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
478
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
479
+ 12/16
480
+ Table 3
481
+ Comparison of pre- and post-data of the three cohorts
482
+ SD=Standard deviation
483
+ Measures
484
+ Batch 1 (n=148)
485
+ Batch 2 (n=167)
486
+ Batch 3 (n=195)
487
+ Mean±SD
488
+ P
489
+ Mean±SD
490
+ P
491
+ Mean±SD
492
+ Pre
493
+ Post
494
+ Pre
495
+ Post
496
+ Pre
497
+ Post
498
+ Empathy
499
+ 14.70±3.344
500
+ 15.05±3.841
501
+ 0.207
502
+ 14.32±3.014
503
+ 15.28±3.116
504
+ <0.001
505
+ 13.97±3.341
506
+ 14.90±3.284
507
+ Social
508
+ competence
509
+ 33.21±6.702
510
+ 33.70±7.866
511
+ 0.363
512
+ 33.19±5.381
513
+ 34.06±6.816
514
+ 0.055
515
+ 32.43±6.513
516
+ 33.48±6.463
517
+ Altruism
518
+ 13.15±3.786
519
+ 13.43±4.113
520
+ 0.355
521
+ 13.27±3.574
522
+ 13.78±3.419
523
+ 0.052
524
+ 12.87±3.498
525
+ 13.66±3.524
526
+ Parent
527
+ relationship
528
+ 23.61±4.827
529
+ 23.84±5.273
530
+ 0.606
531
+ 23.58±4.928
532
+ 23.89±4.885
533
+ 0.423
534
+ 23.66±4.168
535
+ 24.19±4.746
536
+ Peer
537
+ friendship
538
+ 20.62±4.278
539
+ 20.45±4.678
540
+ 0.663
541
+ 20.70±4.002
542
+ 20.43±4.109
543
+ 0.385
544
+ 20.03±4.323
545
+ 20.01±3.900
546
+ 1/27/2021
547
+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
548
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
549
+ 13/16
550
+ Table 4
551
+ Comparison of pre- and post-data of the three cohorts of juniors
552
+ SD=Standard deviation
553
+ Measures
554
+ Batch 1 (n=93)
555
+ Batch 2 (n=90)
556
+ Batch 3 (n=112)
557
+ Mean±SD
558
+ P
559
+ Mean±SD
560
+ P
561
+ Mean±SD
562
+ Pre
563
+ Post
564
+ Pre
565
+ Post
566
+ Pre
567
+ Post
568
+ Empathy
569
+ 14.41±3.275
570
+ 15.12±3.557
571
+ 0.033
572
+ 13.90±2.860
573
+ 14.78±3.042
574
+ 0.029
575
+ 13.87±3.424
576
+ 14.65±3.427
577
+ Social
578
+ competence
579
+ 32.40±6.823
580
+ 33.83±6.882
581
+ 0.029
582
+ 32.51±5.707
583
+ 33.04±7.228
584
+ 0.465
585
+ 31.89±6.616
586
+ 32.63±6.710
587
+ Altruism
588
+ 13.56±3.740
589
+ 13.82±3.776
590
+ 0.488
591
+ 12.82±3.740
592
+ 13.33±3.576
593
+ 0.199
594
+ 12.89±3.483
595
+ 13.63±3.521
596
+ Parent
597
+ relationship
598
+ 23.49±5.058
599
+ 24.10±4.632
600
+ 0.227
601
+ 23.48±5.383
602
+ 24.01±4.775
603
+ 0.361
604
+ 23.71±4.433
605
+ 24.21±4.973
606
+ Peer
607
+ friendship
608
+ 19.98±4.604
609
+ 20.62±3.785
610
+ 0.143
611
+ 20.16±3.940
612
+ 19.98±4.081
613
+ 0.682
614
+ 19.66±4.788
615
+ 19.71±4.060
616
+ 1/27/2021
617
+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
618
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
619
+ 14/16
620
+ Table 5
621
+ Comparison of pre- and post-data of the three cohorts of seniors
622
+ SD=Standard deviation
623
+ Measures
624
+ Batch 1 (n=55)
625
+ Batch 2 (n=77)
626
+ Batch 3 (n=83)
627
+ Mean±SD
628
+ P
629
+ Mean±SD
630
+ P
631
+ Mean±SD
632
+ Pre
633
+ Post
634
+ Pre
635
+ Post
636
+ Pre
637
+ Post
638
+ Empathy
639
+ 15.18±3.432
640
+ 14.93±4.311
641
+ 0.607
642
+ 14.81±3.133
643
+ 15.86±3.119
644
+ 0.001
645
+ 14.12±3.240
646
+ 15.23±3.070
647
+ Social
648
+ competence
649
+ 34.58±6.318
650
+ 33.49±9.363
651
+ 0.248
652
+ 33.99±4.890
653
+ 35.25±6.135
654
+ 0.010
655
+ 33.16±6.339
656
+ 34.63±5.965
657
+ Altruism
658
+ 12.45±3.795
659
+ 12.76±4.586
660
+ 0.544
661
+ 13.79±3.318
662
+ 14.31±3.168
663
+ 0.131
664
+ 12.84±3.539
665
+ 13.71±3.549
666
+ Parent
667
+ relationship
668
+ 23.82±4.448
669
+ 23.42±6.232
670
+ 0.640
671
+ 23.70±4.368
672
+ 23.75±5.040
673
+ 0.917
674
+ 23.59±3.806
675
+ 24.16±4.452
676
+ Peer
677
+ friendship
678
+ 21.71±3.436
679
+ 20.16±5.918
680
+ 0.031
681
+ 21.34±4.005
682
+ 20.96±4.105
683
+ 0.400
684
+ 20.53±3.569
685
+ 20.41±3.659
686
+ 1/27/2021
687
+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
688
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
689
+ 15/16
690
+ Table 6
691
+ Agreement between the parents and adolescents (n=340)
692
+ Mean±SD
693
+ P
694
+ Parent data
695
+ Adolescent data
696
+ Empathy
697
+ 13.90±3.052
698
+ 14.26±3.278
699
+ 0.131
700
+ Altruism
701
+ 12.31±3.339
702
+ 12.84±3.614
703
+ 0.023
704
+ Parent relationship
705
+ 27.10±5.084
706
+ 23.41±4.762
707
+ <0.001
708
+ Peer friendship
709
+ 10.29±3.113
710
+ 20.45±4.177
711
+ <0.001
712
+ SD=Standard deviation
713
+ 1/27/2021
714
+ Effect of Residential Yoga Camp on Psychosocial Fitness of Adolescents
715
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521760/?report=printable
716
+ 16/16
717
+ Table 7
718
+ Comparison of the change scores between parents and adolescents (n=43)
719
+ Outcome measures
720
+ Data description
721
+ Parent data set
722
+ Adolescent data set
723
+ Mean±SD
724
+ P
725
+ Mean±SD
726
+ P
727
+ Predata
728
+ Postdata
729
+ Predata
730
+ Postdata
731
+ Empathy
732
+ 12.47±2.914
733
+ 12.93±2.772
734
+ 0.446
735
+ 14.12±3.52
736
+ 14.84±3.703
737
+ 0.171
738
+ Altruism
739
+ 10.35±3.101
740
+ 11±3.867
741
+ 0.372
742
+ 12.3±3.827
743
+ 13.65±3.484
744
+ 0.003
745
+ Parent relationship
746
+ 24.95±5.3
747
+ 27.05±3.879
748
+ 0.035
749
+ 23.19±4.36
750
+ 23.88±4.3
751
+ 0.095
752
+ Peer friendship
753
+ 9.51±2.53
754
+ 9.56±3.026
755
+ 0.929
756
+ 20.37±4.37
757
+ 20.58±3.923
758
+ 0.708
759
+ SD=Standard deviation
760
+ Articles from International Journal of Yoga are provided here courtesy of Wolters Kluwer -- Medknow
761
+ Publications
subfolder_0/Effect of Yoga Program on Quality of Life in Adolescent Polycystic Ovarian Syndrome A Randomized Control Trial..txt ADDED
@@ -0,0 +1,694 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ 1 23
2
+ Applied Research in Quality of Life
3
+ The Official Journal of the International
4
+ Society for Quality-of-Life Studies
5
+
6
+ ISSN 1871-2584
7
+
8
+ Applied Research Quality Life
9
+ DOI 10.1007/s11482-012-9191-9
10
+ Effect of Yoga Program on Quality of
11
+ Life in Adolescent Polycystic Ovarian
12
+ Syndrome: A Randomized Control Trial
13
+ Ram Nidhi, Venkatram Padmalatha,
14
+ Raghuram Nagarathna & Ram
15
+ Amritanshu
16
+ 1 23
17
+ Your article is protected by copyright and
18
+ all rights are held exclusively by Springer
19
+ Science+Business Media Dordrecht and The
20
+ International Society for Quality-of-Life Studies
21
+ (ISQOLS). This e-offprint is for personal
22
+ use only and shall not be self-archived in
23
+ electronic repositories. If you wish to self-
24
+ archive your work, please use the accepted
25
+ author’s version for posting to your own
26
+ website or your institution’s repository. You
27
+ may further deposit the accepted author’s
28
+ version on a funder’s repository at a funder’s
29
+ request, provided it is not made publicly
30
+ available until 12 months after publication.
31
+ Effect of Yoga Program on Quality of Life
32
+ in Adolescent Polycystic Ovarian Syndrome:
33
+ A Randomized Control Trial
34
+ Ram Nidhi & Venkatram Padmalatha &
35
+ Raghuram Nagarathna & Ram Amritanshu
36
+ Received: 24 February 2012 /Accepted: 13 September 2012
37
+ # Springer Science+Business Media Dordrecht and The International Society for Quality-of-Life Studies
38
+ (ISQOLS) 2012
39
+ Abstract Polycystic Ovarian Syndrome (PCOS) is a common female endocrine
40
+ disorder challenging feminine identity which is likely to impact their quality of life.
41
+ The aim of this study was to evaluate the effect of yoga on PCOS specific quality of
42
+ life in adolescent girls with PCOS. Ninety adolescent (15–18 years) girls from a
43
+ residential college in Andhra Pradesh, who satisfied the Rotterdam criteria, were
44
+ randomized into two groups. The yoga group (n037) practiced a holistic yoga
45
+ module while the control group (n035) practiced a matching set of physical exercises
46
+ (1 h/day, for 12 weeks). PCOS specific quality of life was measured at inclusion and
47
+ after 12 weeks. Mann-Whitney on difference score showed that the changes in all
48
+ domains were significantly different between the two groups (p<0.05) except for
49
+ infertility (p00.675). Wilcoxn signed ranks test showed yoga group observed greater
50
+ improvement in emotional disturbances (effect size; Y:1.52, E: 0.72), body hair
51
+ (effect size; Y: 1.02, E: 0.32), weight (effect size; Y: 0.96, E: 0.33) and menstrual
52
+ problem (effect size; Y: 1.24, E: 0.64) domain as compared to the exercise group.
53
+ Yoga program for 12 weeks is significantly better than physical exercise in improving
54
+ PCOS quality of life in adolescent girls with PCOS.
55
+ Keywords Adolescent PCOS . PCOSQ . Yoga
56
+ Introduction
57
+ Polycystic Ovarian Syndrome (PCOS) affects 2.2 % to as high as 26 % (Michelmore
58
+ et al. 1999; Chen et al. 2008) of the women of reproductive age. Recently we found a
59
+ Applied Research Quality Life
60
+ DOI 10.1007/s11482-012-9191-9
61
+ Funding Agency Central Council for Research in Yoga and Naturopathy (C.C.R.Y.N.), ministry of health,
62
+ Government of India, New Delhi.
63
+ R. Nidhi (*): V. Padmalatha: R. Nagarathna: R. Amritanshu
64
+ Division of Yoga and Life Sciences, SVYASA University, #19, Eknath Bhavan, Gavipuram Cirlce
65
+ Kempegowdanagar, Bangalore 560 019, India
66
+ e-mail: [email protected]
67
+ Author's personal copy
68
+ 9.13 % prevalence of PCOS in south Indian adolescent girls (Nidhi et al. 2011 Aug). Its
69
+ pathophysiology is most likely a combination of genetic disposition and environ-
70
+ mental factors and is not completely understood (Dunaif and Thomas 2001; Legro
71
+ and Strauss 2002). The three most bothersome symptoms commonly reported by
72
+ affected women are excess hair growth, irregular or absent menstruation, and infer-
73
+ tility (Kitzinger and Willmott 2002). As a result, PCOS women face challenges to
74
+ their feminine identity which is likely to impact their quality of life. (Elsenbruch et al.
75
+ 2003). Adolescent PCOS girls who are at the height of feminine identity development
76
+ and awareness of body image, would have an equal or possibly higher disturbance in
77
+ quality of life as compared to adult women and hence cannot be overlooked.
78
+ Research has shown a lower Health Related Quality of Life (HRQol) in women
79
+ with PCOS when compared with healthy controls (Elsenbruch et al. 2003; Hahn et al.
80
+ 2005; Coffey et al. 2006; Ching et al. 2007). One study measuring the HRQoL of
81
+ adult Indian women with PCOS found a high prevalence of psychological distress in
82
+ over 50 % of the women as measured by the Goldberg’s General Health
83
+ Questionnaire-28 (GHQ-28) (Sundararaman et al. 2008).
84
+ The first published data to focus specifically on adolescents with PCOS and their
85
+ HRQL were collected from a cohort of women in Boston, wherein the measure of
86
+ HRQL used was The Child Health Questionnaire–Child Self-Report Form (CHQ-
87
+ CF87) (Trent et al. 2002). Findings from this study demonstrated that adolescents
88
+ with PCOS had lower HRQoL than their healthy counterparts.
89
+ In 1998, Cronin et al. reported polycystic ovary syndrome health-related QoL
90
+ questionnaire (PCOSQ) (Cronin et al. 1998) which is the only specific measure for
91
+ assessing HRQoL in PCOS. Studies employing the PCOSQ consistently demonstrate
92
+ that women with PCOS experience impairments of functioning related to all mea-
93
+ sured domains: body hair, emotions, infertility, weight and menstrual problems
94
+ (Schmid et al. 2004; McCook et al. 2005; Coffey et al. 2006; Ching et al. 2007).
95
+ Though, there are variations which could be attributed to cultural differences. How-
96
+ ever there are fewer data in adolescents with PCOS although this population repre-
97
+ sents an enormous opportunity to intervene early.
98
+ Lifestyle interventions have been suggested as the first-line treatment for PCOS,
99
+ especially in adolescent age groups. A recent study on adolescents with PCOS,
100
+ comparing the effect of metformin with placebo, in a lifestyle modification program
101
+ combined with oral contraceptives (OC) suggested that the addition of metformin
102
+ does not add improvement to PCOSQ scores above those observed with lifestyle
103
+ modification and OC treatment (Harris-Glocker et al. 2010).
104
+ Also, recently Thomson et al. (Thomson et al. 2010) observed improvements in
105
+ quality of life (PCOSQ) and depression amongst overweight women with PCOS after
106
+ a 20 weeks energy-restricted diet with and without exercise (aerobic only or com-
107
+ bined aerobic-resistance exercise).
108
+ Experts agree that Complimentary and Alternative Medicine (CAM) treatments
109
+ may have beneficial effects in PCOS but well-designed studies are needed (Raja-
110
+ Khan et al. 2011).Yogic life style, a form of holistic mind-body medicine, is found to
111
+ be effective in improving the QOL in several chronic conditions such as chronic low
112
+ backache (Tekur et al. 2010), osteoarthritis of knee joint (Ebnezar et al. 2011),
113
+ fibromyalgia (da Silva et al. 2007), rheumatoid arthritis (Haslock et al. 1994) and
114
+ cancer (Raghavendra et al. 2008).
115
+ R. Nidhi et al.
116
+ Author's personal copy
117
+ However till the date there have been no published data on adolescent PCOS
118
+ assessing the effects of yogic interventions. Thus the present study was planned to
119
+ evaluate the effect of yoga on PCOS specific quality of life in adolescent girls with
120
+ PCOS.
121
+ Material and Methods
122
+ Participants
123
+ Adolescent girls aged 15–18 years and with a BMI>18.5 kg/m2 were enrolled from a
124
+ residential college in Anantapur, Andhra Pradesh, India. We used Rotterdam
125
+ diagnostic criteria (2/3 of the features) to identify subjects (Rotterdam ESHRE/
126
+ ASRM-Sponsored_PCOS_Consensus_Workshop_Group 2004). The following
127
+ were the definitions of the three features: Oligo/amenorrhea: absence of
128
+ menstruation for 45 days or more and/or less than eight menses per year
129
+ (Kumarapeli et al. 2008). Clinical hyperandrogenism: Modified Ferriman and
130
+ Gallway (mFG) score of 6 or higher (Chen et al. 2008). Biochemical hyperandrogen-
131
+ ism: Serum testosterone level of >82 ng/dl in the absence of other causes of Hyper-
132
+ androgenism. Poly cystic ovaries: presence of >10 cysts, 2–8 mm in diameter, usually
133
+ combined with increased ovarian volume of >10 cm3, and an echo-dense stroma in
134
+ pelvic ultrasound scan (Franks et al. 1997).
135
+ Exclusion criteria were: use of oral contraceptives/hormone treatment/insulin-
136
+ sensitizing agents within previous 6 weeks, smoking, hyperprolactinemia, thyroid
137
+ abnormalities, non-classic adrenal hyperplasia and prior experience of yoga. Those
138
+ who satisfied the Rotterdam’s criteria for PCOS were then randomly assigned to two
139
+ groups using a computer-generated random number table by the pre labelled sealed
140
+ envelope method.
141
+ The study was approved by the Institutional Ethical Committee of Swami Vive-
142
+ kananda Yoga 4 Anusandhana Samsthana (SVYASA) University. Signed Informed
143
+ consent was obtained from the college authorities, the student and one of the parents.
144
+ Design
145
+ This was a prospective, randomised, active interventional controlled trial in which 90
146
+ participants were randomly divided into two study arms: one arm practiced yoga and
147
+ the other arm practiced conventional physical exercises for the same duration.
148
+ Methods
149
+ Based on random number table participants were assigned to two interventions. Pre
150
+ assessment was carried out a day before commencing the intervention and post
151
+ assessment was done the day after. Two different halls in the college premises were
152
+ allotted for yoga and control group practices. Both groups practiced their respective
153
+ set of practices, one hour daily, 7 days a week for 12 weeks (total 90 sessio ns), under
154
+ the supervision of trained instructors. The daily routine in the class consisted of
155
+ lecture (5 min) followed by physical practices (40 min), pranayama (5 min) and
156
+ Effect of Yoga Program on Quality of Life in Adolescent PCOS
157
+ Author's personal copy
158
+ relaxation (10 min). The instructors maintained the register of daily attendance and
159
+ the reason for absence if any.
160
+ Blinding and Masking
161
+ Double blinding was not possible as this was an interventional study. The medical
162
+ officer who assessed the questionnaires, ultrasonologist and the laboratory staff were
163
+ all blind to the groups. Also the statistician who did the randomization and the final
164
+ analysis was blind to the source of the data.
165
+ Assessments
166
+ Abdominal ultrasound scanning of the pelvis with special attention on ovaries was
167
+ carried out by a certified postgraduate medical ultrasonologist using Philips HD
168
+ 11XE ultrasound system. Vaginal ultrasound scanning was not acceptable to the girls
169
+ or the parents.
170
+ Fasting sample of venous blood (10 ml) was analyzed at certified laboratories.
171
+ Prolactin (PRL) estimates were done by Fully Automated Bidirectionally Interfaced
172
+ Chemi Luminescent Immuno Assay (Abbot Park, IL) with CV below 10 %. Thyroid
173
+ Stimulating Hormone (TSH) was measured by Ultra Sensitive Sandwich Chemi
174
+ Luminescent Immuno Assay (Immulite, USA) with CV below 7 %.
175
+ Polycystic Ovary Syndrome Questionnaire (PCOSQ), a questionnaire developed
176
+ to measure the health-related quality of life (HRQoL) of women with polycystic
177
+ ovary syndrome consists of a total of 26 items grouped into 5 domains: emotions (8
178
+ items), body hair (5 items), weight (5 items), infertility (4 items), and menstrual
179
+ problems (4 items). Each question is associated with a 7-point scale in which 7
180
+ represents optimal function and 1 represents the poorest function. Scoring is done by
181
+ dividing each domain total score by the number of items in the domain. A score of
182
+ less than 5 for any domain indicates significant adverse impact.
183
+ In year 2004, Jones et al. (Jones et al. 2004) showed that all PCOSQ dimen-
184
+ sions were internally reliable with Cronbach’s a scores ranging from 0.70 to 0.97.
185
+ Intra-class correlation coefficients to evaluate test & retest reliability were high (range
186
+ 0.89±0.95, P<18 0.001).
187
+ Intervention
188
+ The specific modules of intervention were developed by a team of experts that
189
+ included a physiatrist, a gynaecologist and yoga therapy physician. Care was taken
190
+ to match the lectures, practical classes and the type of relaxation technique used in the
191
+ two modules.
192
+ Yoga Intervention
193
+ The concepts for the intervention were taken from traditional yoga scriptures (Patanjali
194
+ yoga sutras, Upanishads and Yoga Vasishtha) that highlight a holistic approach to health
195
+ management (Nagendra 2004). The practices consisted of asanas (yoga postures),
196
+ pranayama, relaxation techniques, meditation, and lectures on yogic lifestyle and
197
+ R. Nidhi et al.
198
+ Author's personal copy
199
+ stress management through yogic counselling. All girls received at least one session
200
+ (about one hour each) of individualized counselling that was aimed at cognitive
201
+ restructuring based on yoga philosophy.
202
+ Pranayama included yogic breathing practices to achieve a slow rhythmic pattern
203
+ of breathing with internal awareness. A prolonged easy, slow exhalation is the safest
204
+ way to get mastery over the mind (Nagendra 2000).
205
+ Meditation, considered to be a part of yoga, (antaranga yoga) is a valuable tool to
206
+ calm down uncontrollable surge of negative emotions that may contribute to poor
207
+ quality of life. Lectures and individual yogic counselling for stress management to
208
+ bring about a notional correction were focused on ‘happiness analysis’ (Swami
209
+ Lokeswarananda 1996).
210
+ Control Intervention
211
+ Table 1 shows the hour long module of practices for the control group that consisted
212
+ of a set of physical movements, non-yogic safe breathing exercises followed by
213
+ supine rest (without instructions) that were matched with the yoga module. One
214
+ session of counselling was ensured for the students in the control group also. Care
215
+ was taken by the counsellors not to introduce any of the yogic references during these
216
+ sessions while maintaining the objective of the session to keep up with those of the
217
+ yoga groups.
218
+ Data Analysis
219
+ All statistical analyses were performed using SPSS version 17.0. Kolmogorov–
220
+ Smirnov test was used to check for normal distribution. As our objective was to
221
+ compare the changes after yoga with that of exercise and the data were not normally
222
+ distributed, non-parametric analysis was done by using Mann–Whitney U test to
223
+ compare difference scores (delta change) between the two groups wherein difference
224
+ score was calculated by subtracting pre from post values for each variable.
225
+ Results
226
+ Figure 1 describes the trial profile. The recruitment was carried out between Decem-
227
+ ber 2009 and January 2011. Of 986 girls who agreed for clinical examination, 154
228
+ girls with oligomenorrhea and/or hirsutism (as per the above said definitions) were
229
+ asked to come for ultrasound and hormonal investigations. After the laboratory
230
+ evaluations 90 girls who satisfied Rotterdam criteria of PCOS, were randomized into
231
+ 2 groups. Of these, there were total 18 dropouts, 8 in the yoga group and 10 in the
232
+ control group because of less than 75 % attendance.
233
+ The reasons (not confirmed) given for withdrawal were (a) sick leave and (b)
234
+ unexpected events in the family. The final analysis was done on 72 participants, 37 in
235
+ the yoga group and 35 in the control group.
236
+ Table 2 shows the demographic data. Of the 90 girls recruited, 82.2 % (74/90) were
237
+ of normal weight (BMI018.5 to 23) and only 17.78 % (16/90) were overweight
238
+ Effect of Yoga Program on Quality of Life in Adolescent PCOS
239
+ Author's personal copy
240
+ (BMI>23) and 31.11 % (28/90) had mFG score ≥6. A total of 66.67 % (60/90) girls
241
+ had their menstrual cycle length between 60 to 90 days.
242
+ Wilcoxon signed ranks test (Table 3) showed yoga group observed greater improve-
243
+ ment in emotional disturbances (Y: p<0.001, E: p<0.01), body hair (Y: p<0.001,
244
+ E: p>0.05), weight (Y: p<0.001, E: p>0.05) and menstrual problem (Y: p<0.001,
245
+ E: p<0.001) domain as compared to the exercise group. For infertility domain
246
+ exercise group (E: p<0.01) showed significant improvement as compared to the
247
+ non-significant change in yoga group (Y: p>0.05). Mann-Whitney on difference
248
+ Table 1 Matched practices between yoga and control groups
249
+ Yoga group
250
+ Time
251
+ Control group
252
+ Time
253
+ Group Lecture:
254
+ 8min
255
+ Group Lecture:
256
+ 15min
257
+ Lectures, in the form of cognitive
258
+ restructuring based on the spiritual
259
+ philosophy underlying yogic concepts.
260
+ Lectures on conventional modern medical
261
+ concepts about a healthy lifestyle
262
+ including diet, exercise.
263
+ Surya Namaskara (Sun Salutation)
264
+ 10min Brisk Walk
265
+ 15min
266
+ Prone Asanas
267
+ Prone Exercises
268
+ Cobra Pose (Bhujangasana)
269
+ 1min
270
+ Prone Head Lift
271
+ 1min
272
+ Locust Pose (Salabhasana)
273
+ 1min
274
+ Prone Leg Rising
275
+ 1min
276
+ Bow Pose (Dhanurasana)
277
+ 1min
278
+ Tiger Leg Stretch
279
+ 1min
280
+ Standing Asanas
281
+ Standing Exercises
282
+ Triangle Pose (Trikonasana)
283
+ 1min
284
+ Spread Leg Side Bending
285
+ 1min
286
+ Twisted Angle Pose (Parsva-konasana)
287
+ 1min
288
+ Spread Leg Twisted Bending
289
+ 1min
290
+ Spread Leg Intense Stretch (Prasarita
291
+ padottanasana)
292
+ 1min
293
+ Spread Leg Forward Bend
294
+ 1min
295
+ Supine Asanas
296
+ Supine Exercises
297
+ Inverted Pose (Viparita Karni)
298
+ 1min
299
+ Straight leg raising
300
+ 1min
301
+ Shoulder Stand (Sarvangasana)
302
+ 1min
303
+ Straight Leg Supine Twist
304
+ 1min
305
+ Plough Pose (Halasana)
306
+ 1min
307
+ Cycling (Clockwise – Counter
308
+ Clockwise)Bended knee Crunches
309
+ 1min
310
+ Sitting Asanas
311
+ Sitting Exercises
312
+ Sitting Forward Stretch
313
+ (Paschimottanasana)
314
+ 1min
315
+ Spread Leg Forward Bend
316
+ 1min
317
+ Fixed angle Pose (Baddha-konasana)
318
+ 1min
319
+ Spread Leg Alternate Toe Touching
320
+ 1min
321
+ Garland Pose (Malasana)
322
+ 1min
323
+ Squat pose
324
+ 1min
325
+ Guided relaxation (Savasana)
326
+ 10min Supine Rest
327
+ 10min
328
+ Breathing Techniques (Pranayama)
329
+ Normal Breathing
330
+ 8min
331
+ Sectional Breathing (Vibhagiya-
332
+ Pranayama)
333
+ 4min
334
+ Forceful Exhalation (Kapala Bhati)
335
+ 2min
336
+ Right Nostril Breathing (Suryanuloma
337
+ Viloma)
338
+ 2min
339
+ Alternate nostril breathing (Nadi suddhi)
340
+ 2min
341
+ OM Meditation (OM Dhyana)
342
+ 10min
343
+ R. Nidhi et al.
344
+ Author's personal copy
345
+ score showed that the changes in all domains were significantly different between the
346
+ two groups (p<0.05) except for infertility (p00.675).
347
+ Discussion
348
+ This is the first randomised controlled trial comparing the effect of a 12 weeks yoga
349
+ program with physical exercise on PCOS quality of life in adolescent PCOS. Present
350
+ Screened (n=986)
351
+ Unsuitable (n=832)
352
+ Randomized (n=90)
353
+ Control (n=45)
354
+ Yoga (n=45)
355
+ completed (n=37)
356
+ completed (n=35)
357
+ Drop Out
358
+ (n=10)
359
+ Drop Out (n=8)
360
+ Excluded (n=64)
361
+ Presence of Clinical Symptoms (n=154)
362
+ Clinical Examination
363
+ Laboratory Evaluation
364
+ Fig. 1 Trial profile
365
+ Table 2 Demography of girls recruited in the study
366
+ S.No.
367
+ Variables
368
+ Yoga (n042)
369
+ Control (n043)
370
+ 1.
371
+ Age, yrs (mean ± S.D.)
372
+ 16.22±1.13
373
+ 16.22±0.93
374
+ 2.
375
+ Ht, m (mean ± S.D.)
376
+ 1.54±0.06
377
+ 1.56±0.05
378
+ 3.
379
+ Wt, Kgs (mean ± S.D.)
380
+ 47.92±6.20
381
+ 51.14±7.39
382
+ 4.
383
+ BMI, Kgs/m2 (mean ± S.D.)
384
+ 20.30±1.92
385
+ 21.22±2.99
386
+ 5.
387
+ No. of girls with BMI≤23
388
+ 37
389
+ 34
390
+ No. of girls with BMI>23
391
+ 5
392
+ 9
393
+ 6.
394
+ mFG Score
395
+ 4.60±2.02
396
+ 4.20±2.13
397
+ No. of girls with mFG score <6
398
+ 30
399
+ 32
400
+ No. of girls with mFG score ≥6
401
+ 15
402
+ 13
403
+ 7.
404
+ Menstrual Frequency in months (mean ± S.D)
405
+ 1.41±0.8
406
+ 1.47±0.87
407
+ No. of girls with cycle length of 45 to <60 days
408
+ 9
409
+ 9
410
+ No. of girls with cycle length of 60 to <90 days
411
+ 14
412
+ 16
413
+ No. of girls with cycle length of ≥90 days
414
+ 19
415
+ 18
416
+ Ht: Height, Wt: Weight, BMI: Body Mass Index, Mfg score: Modified Ferriman and Gallway Score for
417
+ hirsutism
418
+ Effect of Yoga Program on Quality of Life in Adolescent PCOS
419
+ Author's personal copy
420
+ study observed higher baseline values for weight domain as compared to the study by
421
+ Ladson et al. (Ladson et al. 2011) on PCOS adolescents (aged 13–18 years) from
422
+ United States. Although Ladson’s study enrolled girls with a BMI>27 kg/m2 in
423
+ comparison to the present study where 82.2 % of PCOS girls were of normal BMI
424
+ (≤23 kg/m2), the perception of Indian adolescents about their body weight and image
425
+ appears to be different from the American adolescents. This is perhaps not surprising
426
+ given that recent research has pointed out that measuring waist circumference along
427
+ with BMI is important, as WC is more indicative of the total body fat and the amount
428
+ of metabolically active visceral fat and therefore recognized as a more accurate
429
+ measure of the metabolic risk (Haslam et al. 2006). This is why the Indian
430
+ population with an increased possibility for hypertension, diabetes and
431
+ dyslipidemia have lower BMI thresholds to reflect the risk for this population
432
+ (Misra et al. 2009). Therefore central obesity, being considered unattractive in this
433
+ age group could cause poor body image in spite of low BMI.
434
+ The scores on infertility domain were lower in our study as compared to Ladson et
435
+ al. (2011) study. Unlike other RCT where the girls were recruited from a hospital or a
436
+ medical college because they were seeking help for their problem, subjects in our
437
+ study were screened from a girl’s college where they were not previously diagnosed
438
+ and hence they were not aware of the long term impact of PCOS on infertility. This
439
+ might have caused a drop in the scores for infertility domain.
440
+ The scores on the other three domains (emotion domain, body hair domain and
441
+ menstrual problem domain) in our study were similar to that of Ladson’s (Ladson et al.
442
+ 2011) study. One of the limitations of the study could be the baseline differences for
443
+ emotional, body hair and weight domain with control group having higher values. As
444
+ this might have affected the hope for and trust in a personal change over the variables.
445
+ The mechanism of action for yoga can be traced to Hypothalamic-pituitary-adrenal
446
+ axis (HPA) and sympatho-adrenal activity. It has been shown that PCOS and the related
447
+ metabolic syndromes, such as hyperandrogenemia, hyperinsulinemia and insulin resis-
448
+ tance are associated with disturbed activity of the sympathetic nervous system (Mancia
449
+ Table 3 Changes in PCOSQ domains post intervention [Yoga (Y)037, Exercise (E)035]
450
+ Domains
451
+ Groups
452
+ Pre
453
+ (mean ± SD)
454
+ Post
455
+ (mean ± SD)
456
+ Within
457
+ grp
458
+ effect size
459
+ Wilcoxon
460
+ Signed
461
+ Ranks test
462
+ Between
463
+ grp
464
+ effect size
465
+ Mann-Whitney
466
+ on diff score (sig.)
467
+ Emotional
468
+ disturbances
469
+ Y
470
+ 4.51±1.12
471
+ 2.51±1.00
472
+ 1.52
473
+ 0.000
474
+ 0.247
475
+ 0.001
476
+ E
477
+ 3.92±1.03
478
+ 3.03±1.04
479
+ 0.72
480
+ 0.001
481
+ Body Hair
482
+ Y
483
+ 3.33±1.40
484
+ 2.02±1.16
485
+ 1.02
486
+ 0.000
487
+ 0.128
488
+ 0.002
489
+ E
490
+ 2.70±1.31
491
+ 2.36±1.46
492
+ 0.32
493
+ 0.097
494
+ Weight
495
+ Y
496
+ 4.44±1.72
497
+ 2.92±1.53
498
+ 0.96
499
+ 0.000
500
+ 0.124
501
+ 0.018
502
+ E
503
+ 3.79±1.48
504
+ 3.27±1.27
505
+ 0.33
506
+ 0.071
507
+ Infertility
508
+ Y
509
+ 2.14±0.89
510
+ 1.83±0.90
511
+ 0.31
512
+ 0.085
513
+ 0.16
514
+ 0.675
515
+ E
516
+ 2.02±0.88
517
+ 1.58±0.61
518
+ 0.52
519
+ 0.002
520
+ Menstrual
521
+ problem
522
+ Y
523
+ 4.86±1.40
524
+ 2.51±1.17
525
+ 1.24
526
+ 0.000
527
+ 0.262
528
+ 0.008
529
+ E
530
+ 4.33±1.44
531
+ 3.20±1.36
532
+ 0.64
533
+ 0.000
534
+ R. Nidhi et al.
535
+ Author's personal copy
536
+ et al. 2007). Increased sympathetic and decreased parasympathetic activity in PCOS
537
+ has been documented through heart rate variability, a measure of cardiac autonomic
538
+ control (Yildirir et al. 2006) and also through direct intra-neural recordings
539
+ (Sverrisdottir et al. 2008). There are evidences proving efficacy of yoga in reducing
540
+ cortisol levels (Kamei et al. 2000) and stress arousal by modulating sympathetic
541
+ nerve activity (Vempati and Telles 2002) and sympathetic activity (Vempati and
542
+ Telles 2002) in normal population. Also, it has been reported that, practicing inte-
543
+ grated yoga as a means to manage and relieve both acute and chronic stress helps
544
+ individuals overcome other co-morbidities associated with metabolic diseases and
545
+ leads to improved quality of life (Michalsen et al. 2005 Dec; Oken et al. 2006).
546
+ Therefore, we hypothesize that yoga may lead to significant improvement in quality of
547
+ life of young PCOS girls by modulating sympathetic activity in addition to its physical
548
+ activity effect.
549
+ As a non-pharmacological form of treatment, yoga based interventions are
550
+ effective in not only improving quality of life in PCOS but it may also prevent
551
+ the long term morbidities. In a recent study, mind-body based program focusing
552
+ on cognitive behaviour therapy, relaxation training, negative health behaviour
553
+ modification, and social support components was associated with increased
554
+ pregnancy rates for cycle 2 of IVF cycle (Domar et al. 2011 Jun). Also studies
555
+ shown the beneficial effects of yoga as an intervention in increased insulin sensitivity
556
+ in healthy male population (Chaya et al. 2008) and in reducing fasting blood glucose
557
+ and improving lipid profiles in obesity and diabetes (Singh et al. 2004).
558
+ Further, yoga is a cost-effective and enduring therapy. This treatment paradigm for
559
+ PCOS in adolescents is promising for long-term prevention and ameliorating its ill
560
+ effects. Pharmacological agents used extensively in the treatment of PCOS with
561
+ mixed results, short term benefits and side effects such as nausea, diarrhoea and
562
+ abdominal cramps, have triggered researchers and patients to seek help through
563
+ alternative non pharmacological therapies. Yoga a non-pharmacological intervention
564
+ is available as an adjuvant therapy or as a primary intervention to improve the
565
+ response of modern medicine.
566
+ Restriction to a highly selective age group and also the small sample size raises the
567
+ question of generalizability of the conclusions of this study. And hence more studies
568
+ are required on larger sample size and different age groups and ethnicities and also
569
+ follow up studies are required with an intention to test the prolonged effects of these
570
+ interventions.
571
+ Conclusion
572
+ Twelve weeks of a holistic yoga program in adolescent PCOS is significantly better
573
+ than physical exercise program in improving selected measures quality of life.
574
+ Acknowledgements
575
+ We are thankful to the Central Council for Research in Yoga and Naturopathy
576
+ (C. C.R.Y.N.), ministry of health, Government of India, New Delhi for funding this project.
577
+ We would like to place on record our gratitude for the support provided by the Vice Chancellor,
578
+ SVYASA University. We gratefully acknowledge the co-operation of the staff and administration of Sri
579
+ Sai College in recruiting the students and carrying out the study.
580
+ Effect of Yoga Program on Quality of Life in Adolescent PCOS
581
+ Author's personal copy
582
+ Declaration
583
+ NR contributed to conception and design, or acquisition of data, or analysis and interpre-
584
+ tation of data; PV have been involved in conception and revising the manuscript critically for important
585
+ intellectual content; RN contributed to conception, design and revising the manuscript and AR have
586
+ contributed to design, acquisition of data and analysis and all the authors have given final approval of
587
+ the version to be published.
588
+ Ethical Approval
589
+ The study was approved by the Institutional Ethical Committee of Swami Vivekananda
590
+ Yoga Anusandhana Samsthana (SVYASA) University (vide project # SVYASA0012/08).
591
+ Conflict of Interest
592
+ It is declared that none of the authors involved in this study have any conflict of
593
+ interest and that all authors of this article have contributed to their fullest capacities.
594
+ References
595
+ Chaya, M. S., Ramakrishnan, G., et al. (2008). Insulin sensitivity and cardiac autonomic function in young
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+ fibromyalgia. Journal of Alternative and Complementary Medicine, 13, 1107–1113.
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+ IVF patients. Fertility and Sterility, 95(7), 2269–2273.
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+ Dunaif, A., & Thomas, A. (2001). Current concepts in the polycystic ovary syndrome. Annual Review of
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+ Medicine, 52, 401–419.
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+ Ebnezar, J., Nagarathna, R., et al. (2011). Effect of an integrated approach of yoga therapy on quality of life in
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+ Harris-Glocker, M., Davidson, K., et al. (2010). Improvement in quality-of-life questionnaire measures in
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+ Haslock, I., Monro, R., et al. (1994). Measuring the effects of yoga in rheumatoid arthritis. British Journal
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+ Kitzinger, C., & Willmott, J. (2002). The thief of womanhood’: women’s experience of polycystic ovarian
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+ syndrome. Social Science & Medicine, 54, 349–361.
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+ Kumarapeli, V., Seneviratne, R. D., et al. (2008). A simple screening approach for assessing community
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+ prevalence and phenotype of polycystic ovary syndrome in a semiurban population in Sri Lanka.
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+ American Journal of Epidemiology, 168, 321–328.
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+ Ladson, G., Dodson, W. C., et al. (2011). Effects of metformin in adolescents with polycystic ovary
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+ syndrome undertaking lifestyle therapy:a pilot randomized double-blind study. Fertility and Sterility,
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+ 95, 2595–2598.
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+ Legro, R. S., & Strauss, J. F. (2002). Molecular progress in infertility: polycystic ovary syndrome. Fertility
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+ and Sterility, 78, 569–576.
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+ Mancia, G., Bousquet, P., et al. (2007). The sympathetic nervous system and the metabolic syndrome.
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+ Journal of Hypertension, 25, 909–920.
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+ McCook, J. G., Reame, N. E., et al. (2005). Health-related quality of life issues in women with polycystic
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+ ovary syndrome. Journal of Obstetric, Gynecologic, and Neonatal Nursing, 34, 12–20.
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+ Michalsen, A., Grossman, P., et al. (2005). Rapid stress reduction and anxiolysis among distressed women as a
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+ consequence of a three-month intensive yoga program. Medical Science Monitor, 11(12), CR555–CR561.
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+ Michelmore, K. F., Balen, A. H., et al. (1999). Polycystic ovaries and associates; clinical and biochemical
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+ features in young women. Clinical Endocrinology, 51, 779–786.
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+ Misra, A., Chowbey, P., et al. (2009). Consensus statement for diagnosis of obesity, abdominal obesity and
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+ the metabolic syndrome for Asian Indians and recommendations for physical activity, medical and
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+ surgical management. The Journal of the Association of Physicians of India, 57, 163–170.
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+ Nagendra, H. R. (2000). Pranayama the art and science. Bengaluru: Swami Vivekananda Yoga
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+ Prakashana.
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+ Nagendra, H. R., & Nagarathna, R. (2004). Breath-the bridge-breathing practices. Bangalore India: Swami
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+ Vivekananda Yoga Prakashan.
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+ Nidhi, R., Padmalatha, V., et al. (2011). Prevalence of polycystic ovarian syndrome in Indian adolescents.
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+ Journal of Pediatric and Adolescent Gynecology, 24(4), 223–227.
661
+ Oken, B. S., Zajdel, D., et al. (2006). Randomized, controlled, six-month trial of yoga in healthy seniors:
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+ effects on cognition and quality of life. Alternative Therapies in Health and Medicine, 12, 40–47.
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+ Raghavendra, R., Nagendra, H. R., et al. (2008). Influence of yoga on mood states, distress, quality of life
664
+ and immune outcomes in early stage breast cancer patients undergoing surgery. International Journal
665
+ of Yoga, 1(1), 11–20.
666
+ Raja-Khan, N., Stener-Victorin, E., et al. (2011). The physiological basis of complementary and alternative
667
+ medicines for polycystic ovary syndrome. American Journal of Physiology, Endocrinology and
668
+ Metabolism, 301(1), E1–E10.
669
+ Rotterdam ESHRE/ASRM-Sponsored_PCOS_Consensus_Workshop_Group. (2004). Revised 2003 con-
670
+ sensus on diagnostic criteria and long-term health risks related to polycystic ovary syndrome. Fertility
671
+ and Sterility, 81, 19–25.
672
+ Schmid, J., Kirchengast, S., et al. (2004). Infertility caused by PCOS-health-related quality of life among
673
+ Austrian and Moslem immigrant women in Austria. Human Reproduction, 19, 2251–2257.
674
+ Singh, S., Malhotra, V., et al. (2004). Role of yoga in modifying certain cardiovascular functions in type 2
675
+ diabetic patients. The Journal of the Association of Physicians of India, 52, 203–206.
676
+ Sundararaman, P. G., Shweta, et al. (2008). Psychosocial aspects of women with polycystic ovary
677
+ syndrome from south India. The Journal of the Association of Physicians of India, 56, 945–948.
678
+ Sverrisdottir, Y. B., Mogren, T., et al. (2008). Is polycystic ovary syndrome associated with high sympa-
679
+ thetic nerve activity and size at birth? American Journal of Physiology, Endocrinology and Metabo-
680
+ lism, 294, E576–E581.
681
+ Swami Lokeswarananda. (1996). Taittireya Upanishad. Kolkatta, The Ramakrishna Mission Institute of Culture.
682
+ Tekur, P., Chametcha, S., et al. (2010). Effect of yoga on quality of life of CLBP patients: a randomized
683
+ control study. International Journal of Yoga, 3(1), 10–17.
684
+ Thomson, R. L., Buckley, J. D., et al. (2010). Lifestyle management improves quality of life and
685
+ depression in overweight and obese women with polycystic ovary syndrome. Fertility and
686
+ Sterility, 94(5), 1812–1816.
687
+ Trent, M. E., Rich, M., et al. (2002). Quality of life in adolescent girls with polycystic ovary syndrome.
688
+ Archives of Pediatrics & Adolescent Medicine, 156, 556–560.
689
+ Vempati, R. P., & Telles, S. (2002). Yoga-based guided relaxation reduces sympathetic activity judged from
690
+ baseline levels. Psychological Reports, 90(2), 487–494.
691
+ Yildirir, A., Aybar, F., et al. (2006). Heart rate variability in young women with polycystic ovary syndrome.
692
+ Annals of Noninvasive Electrocardiology, 11, 306–312.
693
+ Effect of Yoga Program on Quality of Life in Adolescent PCOS
694
+ Author's personal copy
subfolder_0/Effect of Yoga on Psychological Functioning of Nursing Students A Randomized Wait List Control Trial.txt ADDED
@@ -0,0 +1,804 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Journal of Clinical and Diagnostic Research. 2017 May, Vol-11(5): KC01-KC05
2
+ 1
3
+ DOI: 10.7860/JCDR/2017/26517.9833
4
+ Original Article
5
+ Complementary/alterna­
6
+ tive medicine section
7
+ Effect of Yoga on Psychological
8
+ Functioning of Nursing Students:
9
+
10
+ A Randomized Wait List Control Trial
11
+ INTRODUCTION
12
+ As per a systematic review conducted till 2010, reported sources
13
+ of stress in nursing students are related to their academic activities
14
+ and clinical practice [1]. However, perceived stress was associated
15
+ more with the clinical practice than the academic demands, resulting
16
+ in more psychological symptoms [2] and also gastrointestinal
17
+ symptoms [3]. Considerably, nursing students have more stress and
18
+ anxiety than other students [4], especially more in female students
19
+ [5]. So, there is a need for physical activity and stress management
20
+ in nursing students to maintain their health [6].
21
+ In our study, the following psychological variables; mindfulness,
22
+ self-compassion, empathy, resilience, and satisfaction with life were
23
+ included. Mindfulness is being aware of the present moment to
24
+ one’s own experiences [7]. Being mindful aids in stress management
25
+ [8]. According to Neff, self compassion is being warm and caring
26
+ at times of hardship, being kind to self, accepting suffering or
27
+ unpleasant experiences as it is and being non judgmental [9].
28
+ Moving ahead, empathy is an essential professional quality a
29
+ student nurse should possess to provide quality health care to
30
+ the patients. In this study, empathy on cognitive dimension was
31
+ measured. Empathy can be defined as, “a predominantly cognitive
32
+ attribute that involves understanding of the patient’s experiences,
33
+ concerns, and perspectives with a capability to communicate this
34
+ understanding and an intention to help [10]”. In Congruent with the
35
+ professional requirement, many studies have reported that nursing
36
+ students have higher levels of empathy than other undergraduate
37
+ students [11-13]. Nevertheless, female nursing students are
38
+ more empathetic than male students [12,13]. Also, higher level of
39
+ empathy and resilience was reported in older nursing students [14].
40
+ According to the American Psychological Association, resilience can
41
+ be defined as, “the process of adapting well in the face of adversity,
42
+ trauma, tragedy, threats or even significant sources of stress [15]”.
43
+ Substantially, resilience aids in the retention of students in the
44
+ academic program [16], and in their academic success [17] and,
45
+ this helps them to cope effectively with adversities in the clinical
46
+ setting [18]. Satisfaction with life is a subjective judgment about his
47
+ or her life [19]. However, nursing students have reported higher level
48
+ of life satisfaction [5] than compared to other students [20].
49
+ Indeed, physical fitness is associated with perceived physical and
50
+ psychological health. Nursing students have reported poor to
51
+ moderate levels of physical fitness and this needs to be addressed
52
+ through appropriate intervention [21,22]. Yoga is an effective
53
+ practice to reduce stress [23] and improve psychological well being
54
+ [24,25]. Hence, the present study was designed to evaluate the
55
+ effectiveness of eight week yoga intervention to reduce perceived
56
+ stress and to enhance psychological well being among nursing
57
+ students.
58
+ MATERIALS AND METHODS
59
+ The present study was a randomized WLC trial. Total of 100 students
60
+ {1st and 2nd year General Nursing and Midwifery (GNM) and 1st to
61
+ 3rd year BSc Nursing} were recruited from Kempegowda Institute
62
+ of Nursing, Bengaluru, Karnataka, India. In this study, female
63
+ students aged between 17-30 years and who were willing to learn
64
+ yoga were included. However, students who were diagnosed with
65
+ severe neurological or psychiatric illness, those students receiving
66
+ treatment for hormonal imbalance, recently underwent surgical
67
+ intervention, and regularly practicing yoga was excluded. The
68
+ Monali Devaraj Mathad1, Balaram Pradhan2, Rajesh K Sasidharan3
69
+ Keywords: Mindfulness, Nursing education, Perceived stress, Resilience, Self compassion
70
+ ABSTRACT
71
+ Introduction: Nursing students experience considerable
72
+ amount of stress to meet their professional demands. Yoga is
73
+ an effective practice to reduce stress and improve psychological
74
+ well being. However, improvement in psychological well being
75
+ aids in stress management.
76
+ Aim: To evaluate the effectiveness of eight week yoga
77
+ intervention on psychological functioning of nursing students.
78
+ Materials and Methods: This was a randomised Wait List
79
+ Control (WLC) trial, we recruited total 100 students from
80
+ Kempegowda Institute of Nursing, Bengaluru, Karnataka, India
81
+ and randomized them into two groups (yoga=50 and WLC=50
82
+ students). The following instruments were used to collect the
83
+ data, Freiburg Mindfulness Inventory (FMI), Self-Compassion
84
+ Scale- Short Form (SCS-SF), Connor–Davidson Resilience Scale
85
+ (CD-RISC), Satisfaction with Life Scale (SWLS), Jefferson Scale
86
+ of Empathy HPS-Version (JSE-HPS), and Perceived Stress Scale
87
+ (PSS). Data was analysed using Repeated Measures Analysis
88
+ of Variance (RM-ANOVA) followed by post-hoc Bonferroni
89
+ correction for all psychological variables.
90
+ Results: The results of our study report that eight week yoga inter­
91
+ vention was significantly effective in improving self compassion
92
+ and mindfulness among nursing students in experimental
93
+ group than compared to WLC group. Even though there were
94
+ improvements in resilience, satisfaction in life and perceived
95
+ stress, results were not statistically significant.
96
+ Conclusion: Overall, results of the present study have
97
+ demon­
98
+ strated impact of eight week yoga intervention on the
99
+ psychological functioning of nursing students. Yoga intervention
100
+ can be inculcated in the nursing education to meet demands of
101
+ the profession.
102
+ Monali Devaraj Mathad et al., Effect of Yoga on Psychological Functioning of Nursing Students- A Randomized Wait List Control Trial
103
+ www.jcdr.net
104
+ Journal of Clinical and Diagnostic Research. 2017 May, Vol-11(5): KC01-KC05
105
+ 2
106
+ research study was carried out between May 2015 to July 2015.
107
+ After screening, students were randomly allocated into two groups.
108
+ Yoga group received yoga intervention for eight week {five days/
109
+ week, one hour/day} and the WLC group continued their routine
110
+ work for the first eight week. After the completion of study, yoga
111
+ intervention was given to WLC group also.
112
+ Sample Size
113
+ A priori computation of sample size using G* Power version 3.1.9.2,
114
+ revealed 64 participants were required with an effect size 0.347 [26]
115
+ at an alpha value of 0.05 and with an actual power of 0.80.
116
+ Ethical Approval
117
+ Approval of Institutional Ethics Committee was obtained for this
118
+ study {RES/IEC-SVYASA/59/2015} and informed consent was
119
+ obtained from all the students who were recruited for the research
120
+ study.
121
+ Intervention
122
+ The yoga intervention was based on integrated approach to yoga
123
+ therapy as designed by S-VYASA [27]. Details of yoga intervention
124
+ are described in the [Table/Fig-1].
125
+ Assessments
126
+ Data were collected using sociodemographic sheet and five self
127
+ reported questionnaires.
128
+ Sociodemographic sheet included name, age, religion, level of
129
+ education, and address.
130
+ FMI: The FMI is a self report questionnaire to measure mindfulness.
131
+ This scale consists of 14 items and is very sensitive to change in
132
+ mindfulness. Each item has a 4-point Likert rating from 1 (Rarely)
133
+ to 4 (Almost always). The total score will range between14 to 56,
134
+ high score represents high mindfulness. This scale has a sound
135
+ psychometric properties and reported Cronbach’s alpha is 0.86 [28].
136
+ CD-RISC 10: This is a brief, self report questionnaire to measure
137
+ resilience. In this study, 10 items scale was used. Response to each
138
+ item will be from 0 (not true at all) to 4 (true nearly all the time). The
139
+ range of total score is from 0 to 40. High score corresponds to high
140
+ resilience. This scale has a robust psychometric properties [29],
141
+ with Cronbach’s alpha=0.85 [30].
142
+ SCS-SF: This is a self report questionnaire to measure self-
143
+ compassion. In this study, we have used 12 items scale. Response
144
+ for each item will be between 1 (Almost never) to 5 (Almost always).
145
+ Scores can range from 12 to 60; one who scores high has high
146
+ level of self compassion. The SCS–SF is a reliable and valid tool to
147
+ assess self compassion with reported Cronbach’s alpha is ≥0.86.
148
+ This scale has a close correlation with the long form of SCS r ≥0.97
149
+ for all samples [31].
150
+ SWLS: This is a short 5-item questionnaire to measure global
151
+ cognitive judgments of satisfaction with one’s life. This scale
152
+ requires about one minute to complete the test. Each item must be
153
+ scored on a 7-point Likert rating between 1 (Strongly Disagree) to
154
+ 7 (Strongly Agree). This scale has a good psychometric properties
155
+ and can be widely used among wide range of age groups with
156
+ average alpha coefficient 0.85 [19]. Satisfaction with life scale also
157
+ focuses on emotional well being or underlying psychopathology of
158
+ an individual as the evaluation is based on his own criteria [32].
159
+ JSE-HPS: This is a 20 item scale designed to measure empathy
160
+ (cognitive). Each item should be scored on a 7-point Likert rating
161
+ between 1 (Strongly Disagree) to 7 (Strongly Agree). The total score
162
+ will range between 20 to 140. High score corresponds to high level
163
+ of empathy. This scale has reported robust psychometric properties
164
+ with Cronbach’s alpha 0.78 and 0.93 among nursing students of
165
+ southeastern part of USA [33].
166
+ PSS: This is a self reported questionnaire to assess perception of
167
+ stress in one’s day-to-day life. This is a 10-item questionnaire. Each
168
+ item should be rated on 5-point Likert scale 0 (Never) to 4 (Very
169
+ Often). High score represents high level of perceived stress. This
170
+ scale has reported adequate psychometric properties [34,35].
171
+ Statistical Analysis
172
+ Data were analysed using SPSS 16.0 version. RM-ANOVA
173
+ followed by post-hoc Bonferroni correction was performed for all
174
+ psychological variables with the level of significance at p<0.05.
175
+ RESULTS
176
+ The trial profile of the study is depicted in the [Table/Fig-2]. For this
177
+ study, 100 students were recruited, 50 participants in each group
178
+ and there were 10 dropouts in each group. Finally, for analysis there
179
+ were 80 students left.
180
+ The age of all participants in the yoga group was 19.65±1.48 and in
181
+ the WLC group was 19.35±1.03. Characteristics of the participants
182
+ are reported in the [Table/Fig-3]. It is apparent from this table that
183
+ majority of the students belong to Hindu religion and their mother
184
+ tongue was kannada. In this study, all the participants were females,
185
+ single and were residing in the college hostel.
186
+ Proceeding further, data was analysed using Repeated Measure
187
+ of Analysis of Variance (RM-ANOVA). Results are reported in the
188
+ Sl. No.
189
+ Intervention
190
+ Approximate
191
+ time for the
192
+ practice
193
+ Schedule
194
+ 1
195
+ Basic Instructions
196
+ 15 minutes
197
+ First day
198
+ 2
199
+ Breathing practices-
200
+ Hands in and out breathing,
201
+ Hand stretch breathing,
202
+ Ankle stretch breathing,
203
+ Leg raising (Alternative and both legs).
204
+ breathing,
205
+ Tiger breathing,
206
+ Rabbit (Shashanka) breathing
207
+ 10 minutes
208
+ Daily-first week
209
+ to 8th week
210
+ 3
211
+ Loosening practices-
212
+ Twisting,
213
+ Side bending,
214
+ Forward and backward bending
215
+ Jogging
216
+ 10 minutes
217
+ Daily-first week
218
+ to 8th week
219
+ 4
220
+ Sun salutation
221
+ (Suryanamaskara)
222
+ 10-12 minutes
223
+ Daily-first week
224
+ to 8th week
225
+ 5
226
+ Asanas (postures)
227
+ Standing posture-
228
+ Half wheel posture (Ardhacakrasana)
229
+ Foot palm posture (Padahastasana)
230
+ Half waist rotation posture
231
+ (Ardhakaticakrasana)
232
+ Tree posture (Vrkshasana)
233
+ Triangle posture (Trikonasana)
234
+ Sitting posture-
235
+ Diamond posture (Vajrasana)
236
+ Rabbit posture (Shashankasana)
237
+ Spinal twist posture (Vakrasana/
238
+ Ardhamatsendrasana)
239
+ Camel posture (Ustrasana)
240
+ Posterior stretch (Paschimottanasana)
241
+ Supine asana
242
+ Fish posture (Matsyasana)
243
+ Shoulder stand posture (Sarvangasana)
244
+ Prone asana
245
+ Cobra posture (Bhujangasana)
246
+ Grasshopper posture (Shalabhasana)
247
+ Bow posture (Dhanurasana)
248
+ 10-15 minutes
249
+ Daily-first week
250
+ to 8th week
251
+ 6
252
+ Quick Relaxation Technique (QRT)
253
+ 3 minutes
254
+ Daily-first week
255
+ to 8th week
256
+ 7
257
+ Pranayama-
258
+ Kapalabhati
259
+ Nadishodana pranayama
260
+ Bhramari chanting
261
+ 8-10 minutes
262
+ Daily-From 2nd
263
+ week
264
+ 8
265
+ Yogic games (Krida yoga)
266
+ 8-10 minutes
267
+ Alternative days
268
+ 9
269
+ Meditation
270
+ 5 minutes
271
+ Once in a
272
+ month
273
+ 10
274
+ Lecture session
275
+ 10 minutes
276
+ Once in a
277
+ month
278
+ [Table/Fig-1]: List of yoga practices in the yoga module.
279
+ www.jcdr.net
280
+ Monali Devaraj Mathad et al., Effect of Yoga on Psychological Functioning of Nursing Students- A Randomized Wait List Control Trial
281
+ Journal of Clinical and Diagnostic Research. 2017 May, Vol-11(5): KC01-KC05
282
+ 3
283
+ [Table/Fig-2]: Trial profile.
284
+ and self compassion among nursing students in yoga group than
285
+ compared to WLC group. Even though, we could not elicit statistical
286
+ significance the following improvements were witnessed among
287
+ participants of yoga group in contrast to WLC group. There was
288
+ improvement in resilience and perceived stress in yoga group but
289
+ not in WLC group. However, there was improvement in satisfaction
290
+ with life among both the groups. Contrary to our expectation,
291
+ decrease in the empathy was reported in both the groups, but
292
+ significant decrease was noticed in WLC group.
293
+ Characteristics of the
294
+ participants
295
+ N (%)
296
+ Yoga group
297
+ (40)
298
+ WLC group
299
+ (40)
300
+ Class/batch
301
+ 1st year GNM
302
+ 2nd year GNM
303
+ 1st year BSc
304
+ 2nd year BSc
305
+ 3rd year BSc
306
+ 17 (42.5%)
307
+ 6 (15%)
308
+ 5 (12.5%)
309
+ 5 (12.5%)
310
+ 7 (17.5%)
311
+ 10 (25%)
312
+ 10 (25%)
313
+ 7 (17.5%)
314
+ 7 (17.5%)
315
+ 6 (15%)
316
+ Religion
317
+ Hindu
318
+ Christian
319
+ Muslim
320
+ 29 (72.5%)
321
+ 9 (22.5%)
322
+ 2 (5%)
323
+ 26 (65%)
324
+ 14 (35%)
325
+ -
326
+ Mother tongue
327
+ Hindi
328
+ Kannada
329
+ Others
330
+ -
331
+ 26 (65%)
332
+ 14 (35%)
333
+ 1 (2.5%)
334
+ 23 (57.5%)
335
+ 16 (40%)
336
+ [Table/Fig-3]: Characteristics of the participants.
337
+ For self compassion, within group comparison (ANOVA) did not
338
+ show significant improvement, F (1,78) = 1.894, p = 0.173. Whereas,
339
+ interaction between time x group reported significant improvement,
340
+ F (1,78) = 4.506, p = 0.037. Results of post-hoc analysis with
341
+ Bonferroni adjustment reported significant improvement within the
342
+ yoga group (p = 0.016), but there was no significant improvement
343
+ within the WLC group (p = 0.599).
344
+ Within group comparison (ANOVA) did not show significant increase
345
+ in satisfaction with life, F (1, 78) = 1.768, p = 0.187. Likewise, in
346
+ interaction between time x group also there was no significant
347
+ Psychological
348
+ Variables
349
+ Group
350
+ Pre
351
+ M ±
352
+ SD
353
+ Post
354
+ M± SD
355
+ % change
356
+ Within group
357
+ Between group
358
+ Group x
359
+ Time
360
+ Diff
361
+ p-value
362
+ pre vs pre
363
+ post vs post
364
+ Self-compassion
365
+ Yoga
366
+ 3.03±
367
+ 0.46
368
+ 3.19±
369
+ 0.28
370
+ 5%
371
+ 0.16
372
+ 0.016*
373
+ 0.18
374
+ 0.01
375
+ 0.037*
376
+ WLC
377
+ 3.22±
378
+ 0.46
379
+ 3.18±
380
+ 0.40
381
+ -1%
382
+ -0.04
383
+ 0.599
384
+ Satisfaction with life
385
+ Yoga
386
+ 21.60±
387
+ 5.02
388
+ 22.40±
389
+ 5.29
390
+ 4%
391
+ 0.80
392
+ 0.232
393
+ 0.75
394
+ 0.40
395
+ 0.711
396
+ WLC
397
+ 22.35±
398
+ 5.07
399
+ 22.80±
400
+ 4.78
401
+ 2%
402
+ 0.45
403
+ 0.500
404
+ Mindfulness
405
+ Yoga
406
+ 37.09±
407
+ 3.74
408
+ 39.46±
409
+ 4.97
410
+ 6%
411
+ 2.37
412
+ 0.005*
413
+ 1.18
414
+ 2.68
415
+ 0.001**
416
+ WLC
417
+ 38.28±
418
+ 4.92
419
+ 36.78±
420
+ 5.64
421
+ -4%
422
+ -1.5
423
+ 0.073
424
+ Resilience
425
+ Yoga
426
+ 23.20±
427
+ 5.83
428
+ 23.68±
429
+ 5.92
430
+ 2%
431
+ 0.48
432
+ 0.633
433
+ 1.13
434
+ 0.73
435
+ 0.196
436
+ WLC
437
+ 24.33±
438
+ 6.05
439
+ 22.95±
440
+ 5.47
441
+ -6%
442
+ -1.38
443
+ 0.176
444
+ Empathy
445
+ Yoga
446
+ 97.50±
447
+ 13.02
448
+ 93.37±
449
+ 14.50
450
+ -4%
451
+ -4.13
452
+ 0.074
453
+ 3.45
454
+ 3.87
455
+ 0.895
456
+ WLC
457
+ 94.05±
458
+ 12.89
459
+ 89.50±
460
+ 11.60
461
+ -5%
462
+ -4.55
463
+ 0.049*
464
+ Stress
465
+ Yoga
466
+ 20.80±
467
+ 4.10
468
+ 19.33±
469
+ 3.69
470
+ 7%
471
+ 1.47
472
+ 0.059
473
+ 0.80
474
+ 1.22
475
+ 0.066
476
+ WLC
477
+ 20.00±
478
+ 4.11
479
+ 20.55±
480
+ 3.34
481
+ -3%
482
+ -0.55
483
+ 0.474
484
+ Table/Fig-4: Results of RM-ANOVA for all the psychological variables in the yoga group (n=40) and the WLC group (n=40).
485
+ *significant at the 0.05 level
486
+ **significant at the 0.01 level
487
+ [Table/Fig-4]. Meanwhile, normality test (Shapiro-Wilk) ensured that
488
+ there is no significant difference between yoga and WLC groups at
489
+ baseline for all the variables. This is evident from the [Table/Fig-4]
490
+ that eight week yoga intervention significantly improved mindfulness
491
+ Monali Devaraj Mathad et al., Effect of Yoga on Psychological Functioning of Nursing Students- A Randomized Wait List Control Trial
492
+ www.jcdr.net
493
+ Journal of Clinical and Diagnostic Research. 2017 May, Vol-11(5): KC01-KC05
494
+ 4
495
+ improvement, F (1, 78) = 0.139, p = 0.711. In post-hoc analysis
496
+ with Bonferroni correction did not show significant increase within
497
+ the yoga group (p = 0.232) and the WLC group (p = 0.500).
498
+ Similarly, within group comparison (ANOVA) for mindfulness did not
499
+ report significant improvement, F (1, 78) =0.547, p = 0.462. But, for
500
+ interaction between time x group showed significant improvement,
501
+ F (1, 78) = 10.945, p<0.001. Results of post-hoc analysis with
502
+ Bonferroni adjustment reported significant increase within the yoga
503
+ group (p = 0.005), but there was no significant improvement in the
504
+ WLC group (p = 0.073).
505
+ For resilience, within group comparison (ANOVA), F (1, 78) = 0.393,
506
+ p = 0.533 and interaction between time x group did not report
507
+ significant improvement, F (1, 78) = 1.700, p = 0.196. In post-hoc
508
+ analysis with Bonferroni correction also did not show significant
509
+ increase within the yoga group (p = 0.633) and the WLC group (p
510
+ = 0.176).
511
+ Conversely, in within group comparison [ANOVA] significant
512
+ decrease in empathy was reported, F (1, 78) = 7.265, p = 0.009.
513
+ However, interaction between time x group did not report significant
514
+ improvement, F (1, 78) = 0.017, p = 0.895. Post-hoc analysis with
515
+ Bonferroni adjustment did not find significant increase within yoga
516
+ group (p = 0.074), but significant decrease in empathy within the
517
+ WLC group (p = 0.049) was reported.
518
+ Results of within group comparison (ANOVA) did not demonstrate
519
+ significant decrease in perceived stress, F (1, 78) = 0.720, p
520
+ = 0.399. Similarly, time x group interaction also did not report
521
+ significant decrease, F (1, 78) = 3.482, p = 0.066. Findings of post-
522
+ hoc analysis with Bonferroni adjustment did not report significant
523
+ reduction in stress within the yoga group (p =0.059) and within the
524
+ WLC group (p = 0.474).
525
+ DISCUSSION
526
+ The results of our study have reported that eight week yoga
527
+ intervention was significantly effective in improving self compassion
528
+ and mindfulness among nursing students in yoga group than
529
+ compared to WLC group. The following studies are in line with
530
+ our results. Yoga practitioners showed significant improvement
531
+ in mindfulness [36-38]. Eight week yoga intervention significantly
532
+ improved mindfulness among healthy population in experimental
533
+ group than compared to WLC group [39]. Eleven week yoga
534
+ intervention (one hour per week) among medical students
535
+ significantly increased self-compassion but, improvement in
536
+ empathy and perceived stress were not statistically significant
537
+ [40]. Self compassion is considered as the potential mechanism
538
+ through which yoga intervention reduces perceived stress [26,41].
539
+ Even, in our study there was a decrease in perceived stress among
540
+ participants of yoga group than WLC group, but results were not
541
+ statistically significant. Many studies have reported that, yoga is
542
+ effective in the management of stress [23,38,40,42-49].
543
+ This result was contrary to our expectation, as there was a decrease
544
+ in empathy in the both groups. But in WLC group, there was a
545
+ significant decrease in empathy. Previous studies also reported
546
+ similar findings, that there was decline in empathy among nursing
547
+ students [50,51]. As our intervention was for eight week, this time
548
+ duration may be short to witness decline in empathy. Reason for
549
+ this result remains unclear.
550
+ Subsequently, there was improvement in satisfaction with life in the
551
+ both groups, but our results could not elicit statistical significance.
552
+ There is a significant association between satisfaction with life and
553
+ participation in physical activity [52]. During the phase of intervention
554
+ students of both the groups were participating in cultural and sports
555
+ activities. This may the reason for improvement in satisfaction with
556
+ life in both the groups. Earlier studies were in accord with our result.
557
+ In a RCT, six week yoga intervention one hour/week improved life
558
+ satisfaction and resilience to stress among university staff [53]. In
559
+ our study, also there was improvement in resilience in yoga group
560
+ but not in WLC group.
561
+ During the phase of yoga intervention students had to attend
562
+ their internal assessment tests, complete their annual academic
563
+ requirements and many students were participating in annual
564
+ cultural and sports competition. This may be the reason for mixed
565
+ results in our study.
566
+ LIMITATION
567
+ The scope of this study is limited in terms of assessment tools as
568
+ self reported questionnaires were used for data collection. However,
569
+ duration of intervention could have been for longer than eight week
570
+ with readings taken at multiple timelines and follow up report of the
571
+ study. This study could have been implemented in the beginning
572
+ of the academic program, to evaluate the effect of yoga on the
573
+ psychological functioning of nursing students.
574
+ CONCLUSION
575
+ Results of our study have demonstrated, eight week yoga intervention
576
+ significantly improved mindfulness and self-compassion among
577
+ participants in yoga group than compared to WLC group. Both
578
+ mindfulness and self compassion plays vital role in combating stress.
579
+ As nursing students are exposed to high levels of stress compared
580
+ to other students. It is essential to inculcate yoga intervention in the
581
+ nursing education to meet demands of the profession.
582
+ ACKNOWLEDGEMENTS
583
+ We would like to thank Principal, Kempegowda Institute of Nursing
584
+ for giving permission to conduct research in their college.
585
+ We thank and appreciate all the nursing students for their sincere
586
+ participation in our research study.
587
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791
+ PARTICULARS OF CONTRIBUTORS:
792
+ 1. Research Scholar, Department of Division of Yoga and Humanities, S-VYASA University, Bengaluru, Karnataka, India.
793
+ 2. Assistant Professor, Department of Division of Yoga and Humanities, S-VYASA University, Bengaluru, Karnataka, India.
794
+ 3. Assistant Professor, Department of Division of Yoga and Humanities, S-VYASA University, Bengaluru, Karnataka, India.
795
+ NAME, ADDRESS, E-MAIL ID OF THE CORRESPONDING AUTHOR:
796
+ Ms. Monali Devaraj Mathad,
797
+ Research Scholar, S-VYASA University, #19, Eknath Bhavan,
798
+ Gavipuram Circle, Kempe Gowda Nagar, Bengaluru-560019, Karnataka, India.
799
+ E-mail: [email protected]
800
+ Financial OR OTHER COMPETING INTERESTS: None.
801
+ Date of Submission: Jan 03, 2017
802
+ Date of Peer Review: Feb 02, 2017
803
+ Date of Acceptance: Mar 09, 2017
804
+ Date of Publishing: May 01, 2017
subfolder_0/Effect of Yoga on Sleep Quality and Neuroendocrine Immune Response in Metastatic Breast Cancer Patients.txt ADDED
@@ -0,0 +1,512 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Indian J Palliat Care. 2017 Jul-Sep; 23(3): 253–260.
2
+ doi: 10.4103/IJPC.IJPC_102_17
3
+ PMCID: PMC5545949
4
+ PMID: 28827927
5
+ Effect of Yoga on Sleep Quality and Neuroendocrine Immune Response
6
+ in Metastatic Breast Cancer Patients
7
+ Raghavendra Mohan Rao, HS Vadiraja, R Nagaratna, K S Gopinath, Shekhar Patil, Ravi B Diwakar,
8
+ HP Shahsidhara, BS Ajaikumar, and HR Nagendra
9
+ Department of Complementary and Alternative Medicine, Healthcare Global, Bengaluru, Karnataka, India
10
+ Department of Life Sciences, Swami Vivekananda Yoga Anusandhana Samsthana, Bengaluru, Karnataka,
11
+ India
12
+ Department of Surgical Oncology, HCG Bangalore Institute of Oncology Specialty Center, Bengaluru,
13
+ Karnataka, India
14
+ Department of Medical Oncology, HCG Bangalore Institute of Oncology Specialty Center, Bengaluru,
15
+ Karnataka, India
16
+ Department of Radiation Oncology, HCG Bangalore Institute of Oncology Specialty Center, Bengaluru,
17
+ Karnataka, India
18
+ Department of Research and Development, Swami Vivekananda Yoga Anusandhana Samsthana, Bengaluru,
19
+ Karnataka, India
20
+ Address for correspondence: Dr. Raghavendra Mohan Rao, Head CAM Program, Healthcare Global
21
+ Enterprises Ltd., No. 8, HCG Towers, P Kalinga Rao Road, Sampangiramnagar, Bengaluru - 560 098,
22
+ Karnataka, India. E-mail: [email protected]
23
+ Copyright : © 2017 Indian Journal of Palliative Care
24
+ This is an open access article distributed under the terms of the Creative Commons Attribution-
25
+ NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-
26
+ commercially, as long as the author is credited and the new creations are licensed under the identical terms.
27
+ Abstract
28
+ Background:
29
+ Studies have shown that distress and accompanying neuroendocrine stress responses as important
30
+ predictor of survival in advanced breast cancer patients. Some psychotherapeutic intervention studies
31
+ have shown have modulation of neuroendocrine-immune responses in advanced breast cancer patients.
32
+ In this study, we evaluate the effects of yoga on perceived stress, sleep, diurnal cortisol, and natural
33
+ killer (NK) cell counts in patients with metastatic cancer.
34
+ Methods:
35
+ In this study, 91 patients with metastatic breast cancer who satisfied selection criteria and consented to
36
+ participate were recruited and randomized to receive “integrated yoga based stress reduction program”
37
+ (n = 45) or standard “education and supportive therapy sessions” (n = 46) over a 3 month period.
38
+ Psychometric assessments for sleep quality were done before and after intervention. Blood draws for
39
+ 1
40
+ 1
41
+ 2
42
+ 3
43
+ 3
44
+ 3
45
+ 4
46
+ 5
47
+ 1
48
+ 2
49
+ 3
50
+ 4
51
+ 5
52
+ NK cell counts were collected before and after the intervention. Saliva samples were collected for three
53
+ consecutive days before and after intervention. Data were analyzed using the analysis of covariance on
54
+ postmeasures using respective baseline measure as a covariate.
55
+ Results:
56
+ There was a significant decrease in scales of symptom distress (P < 0.001), sleep parameters (P =
57
+ 0.02), and improvement in quality of sleep (P = 0.001) and Insomnia Rating Scale sleep score (P =
58
+ 0.001) following intervention. There was a decrease in morning waking cortisol in yoga group (P =
59
+ 0.003) alone following intervention. There was a significant improvement in NK cell percent (P =
60
+ 0.03) following intervention in yoga group compared to control group.
61
+ Conclusion:
62
+ The results suggest modulation of neuroendocrine responses and improvement in sleep in patients with
63
+ advanced breast cancer following yoga intervention.
64
+ Keywords: Cortisol, immune, natural killer cell, sleep, yoga
65
+ Iඖගක඗ඌඝඋගඑ඗ඖ
66
+ The advancement and progression of breast cancer impose severe psychologic distress. There follows a
67
+ sequel of dejection, depression anxiety, and fear of dying and thoughts of impending treatments-related
68
+ side effects that are known to cause distress, impair sleep, and normal functioning.[1,2] Metastatic
69
+ breast cancer patients often have to cope with uncertainty about their future which is known to cause
70
+ severe stress.[3] This chronic stress is known to impair sleep and circadian rhythms. Impairment in
71
+ sleep in cancer patients could be due to pain, electrolyte disturbances, infection, or psychologic distress
72
+ and mood states.[4] Sleep is an important buffer of stress response. Both sleep quality and duration are
73
+ important attributes of sleep.[5] While good sleep acts as a buffer of stress response, impaired sleep is
74
+ known to exacerbate symptoms, distress, and fatigue.[6] Alteration in circadian patterns of sleep with
75
+ daytime sleepiness and fatigue is one of the early signs of sleep impairment.[4,6] This impairment in
76
+ sleep is primarily caused due to elevated stress hormones such as cortisol and change in circadian
77
+ rhythms of cortisol due to perceived stress.[7] This triad of stress, sleep impairment, and altered diurnal
78
+ cortisol rhythm is known exacerbate symptom distress, pain, fatigue, and lower antitumor immune
79
+ response in patents.[8]
80
+ This treatment-related distress coupled with daily hassles is intense enough to cause elevated cortisol
81
+ levels and hypothalamopituitary axes dysregulation.[8,9] Most distressed patients have had flat or
82
+ upward cortisol slopes that have shown to be an important predictor for survival.[7,8]
83
+ Moreover, the effects of this intense stressor are known to affect psychoneuroendocrine and
84
+ psychoneuroimmune axes causing maladaptive neuroendocrine responses and immunosuppression.
85
+ [10,11] This is evident in earlier studies wherein advanced breast cancer patients had low natural killer
86
+ (NK) cell counts due to their psychologic distress.[8,11] The study of changes in these pathways has
87
+ intrigued scientists to try psychologic and mind-body interventions that can modulate these pathways
88
+ and help patients cope with this stressor.
89
+ Several studies have shown that psychotherapeutic interventions modulate abnormal rhythms and
90
+ morning salivary cortisol peaks and improve sleep quality and reduce distress. Cognitive behavior
91
+ therapy,[12,13] supportive therapy,[14] and other mind-body therapies such as mindfulness-based
92
+ stress reduction,[15] Yoga, Tai Chi,[16] etc., have shown to reduce morning cortisol levels. In our
93
+ earlier study with stage I–III breast cancer patients undergoing radiotherapy, our integrated yoga
94
+ program showed decrease in cortisol levels following radiotherapy.[17] However, most of these studies
95
+ have shown changes in early cancer patients with exception of few on metastatic breast cancer patients
96
+ using psychotherapeutic interventions.[16]
97
+ Mඍගඐ඗ඌඛ
98
+ In this study, 91 patients with metastatic breast cancer were recruited to participate in a trial comparing
99
+ an integrated yoga program versus education and supportive therapy sessions on stress, sleep, diurnal
100
+ salivary cortisol rhythms, and NK cell counts. The recruitments were carried out from January 2004 to
101
+ June 2007 with referrals from medical and radiation oncology outpatient departments of a
102
+ comprehensive cancer care center. The Institutional Review Board of the participating institution
103
+ approved the study. The subjects were recruited if they satisfied the selection criteria and gave written
104
+ consent to participate in the study.
105
+ Selection criteria
106
+ Patients were included if they met the following criteria:
107
+ Women diagnosed with stage IV breast cancer within 6 months–2 years after diagnosis either
108
+ recurrent disease or progressive disease
109
+ Age between 30 and 70 years
110
+ Zubrod's performance status 0–2 (ambulatory >50% of time)
111
+ Minimum high school education
112
+ Willingness to participate in the study.
113
+ Exclusion criteria were
114
+ Duration of metastasis more than 1 year
115
+ Brain metastasis
116
+ Those undergoing chemotherapy/radiotherapy during the study except for treatment of bone
117
+ metastases with bisphosphonates/zoledronic acid
118
+ Those on hydrocortisone medications
119
+ A concurrent medical condition likely to interfere with yoga intervention or survival
120
+ Any major psychiatric, neurological illness, or autoimmune disorders
121
+ Those who are on hydrocortisone medications or have HIV
122
+ Pregnant and lactating mothers or planning to conceive during the study period
123
+ Those who are recruited for clinical trials involving investigational new drugs
124
+ Prior practice of yoga in the last 6 months
125
+ Prior chemotherapy other than treatment of bone metastases mentioned above in the last 2 weeks
126
+ History of any pathologic fractures.
127
+ In this study, 257 patients with advanced metastatic breast cancer patients were screened over a 3-year
128
+ period. One hundred and fifty-three patients were eligible, and 91 patients consented to participate in
129
+ this study. Patients were recruited to participate in a two-arm prospective randomized controlled trial
130
+ comparing the effects of an “integrated yoga based stress reduction program” (n = 45) versus standard
131
+ “education and supportive therapy sessions” (n = 46).
132
+ Sample size
133
+ Earlier study with Mindfulness-Based Stress Reduction Program (MBSR) had shown a modest effect
134
+ size (ES = 0.38) on EORTC QLC30 global quality of life measure.[18] We used G power to calculate
135
+ the sample size with α = 0.05 and β = 0.2 and an ES of 0.38 for repeated measures ANOVA between
136
+ factor effects. The sample size thus required was (n = 44) in each group. Second, earlier studies were
137
+ only on stage I–III breast cancer patients and not on metastatic breast cancer patients.
138
+ Randomization
139
+ A person who had no part in the trial randomly allocated consenting participants to either yoga or
140
+ supportive therapy groups using random numbers generated by a random number table at a different
141
+ site. Randomization was performed using opaque envelopes with group assignments, which were
142
+ opened sequentially in the order of assignment during recruitment with names and registration numbers
143
+ written on their covers.
144
+ Masking and blinding
145
+ Being a popular intervention, it was not possible to mask the yoga intervention from the subjects.
146
+ However, the investigators (treating oncologists) were blind to the intervention and subjects were asked
147
+ not to disclose the type of intervention (yoga or supportive therapy) to them. Second, the saliva and
148
+ blood samples were blinded from the technicians who analyzed the coded samples at a site different
149
+ from the study center. The samples and data were unblinded only at the conclusion of the study.
150
+ Outcome measures
151
+ Pittsburgh Insomnia Rating Scale is a widely used instrument in clinical and research practice.[19] It is
152
+ a scale with 65-items. It was designed to assess severity of insomnia in clinical settings. It is known to
153
+ assess subjective distress score (46 items) related to sleep, subjective sleep parameters (10 items) and
154
+ sleep-related quality-of-life (9 items). The items have to be scored according to symptoms experienced
155
+ in the previous week. The test-retest reliability and internal consistency for the scale was 0.93 (Veqar
156
+ and Hussain, 2016).[20]
157
+ Diurnal salivary cortisol measures
158
+ Saliva collection and storage: participants were trained to collect their saliva by chewing on a cotton
159
+ swab and dribble the saliva to a plastic holder resting inside a sterile centrifuge tube. Samples were
160
+ collected at 0600 h, 0900 h, and 2100 h for 3 consecutive days. The samples were stored in refrigerator
161
+ and delivered to study personnel after 3 days. Samples were then centrifuged to remove mucous,
162
+ freeze, and stored at −70°C in Eppendorf tubes for analysis.
163
+ Quantifications of salivary cortisol
164
+ Salivary cortisol levels were assessed using enzyme immunoassay method using kits manufactured by
165
+ Salimetrics Inc., USA. The test samples were run in duplicates and readings taken on a microplate
166
+ reader (Bio-Rad, USA). The tests were standardized under controlled laboratory conditions using
167
+ standards, positive, and negative controls provided along with the kit by the manufacturer. The plates
168
+ were read at 450 nm, and a standard curve was plotted on a graph for each run by plotting the log of
169
+ cortisol concentrations on “y” axis and log of optical density (O.D) reading on “x” axes and best fit line
170
+ determined by regression analyses. The values were then extrapolated with the graph using the mean
171
+ O.D readings of the duplicate wells and plotting their corresponding concentration on the graph. The
172
+ detection range with these kits was 0.012–3.0 Hgm/dl. The intra-assay coefficient ranged from 3.35%
173
+ to 3.65% and inter-assay coefficient from 3.75% to 6.41% with these samples. Mean cortisol levels for
174
+ specific time points over a 3-day period were extrapolated.
175
+ Natural killer cells (CD56%) measures
176
+ Blood sample collection: all subjects in metastatic breast cancer study were asked to provide blood
177
+ samples at the study start and at the end of intervention. About 5 ml of heparinized blood sample was
178
+ collected in vacuettes under sterile conditions. All the blood samples were collected between 8 am to
179
+ 12 am to reduce diurnal variability.
180
+ Quantification of natural killer cells (CD56%)
181
+ The NK cell assay was done using reagents and antibodies from DAKO Corporation, USA in a Becton
182
+ Dickinson Flow Cytometer. Flow cytometer measures and analyses optical properties of single cells
183
+ passing through a focused laser beam, analysis of hundreds of cells per second provides a statistically
184
+ significant picture, when the cells pass through the laser beam they disrupt and scatter the laser light
185
+ which is detected as forward scatter (FSC) and side scatter (SSC). While FSC is related to cell size, the
186
+ SSC is an indicator of cells internal complexity. Cells are stained with monoclonal antibodies coupled
187
+ with fluorescent dye FITC, and the conjugated samples were acquired using flow cytometer, when
188
+ acquiring, blood cells are segregated into different populations-lymphocytes, monocytes, and
189
+ erythrocytes using cell quest pro software version 3.1. The cytometer processes the electronic signals
190
+ resulting from each cell and creates numeric value for each parameter. Each cell count acquired is taken
191
+ as one event. Before acquiring this is set based on the availability of the cells in the sample (it is set for
192
+ 10,000 events). Once acquisition is done, the cells segregated are analyzed by encircling the cell
193
+ population in FSC/SSC plot. Stained cells are separated from the unstained cells by gating. The
194
+ cytometer processes the electronic signals resulting from each cell and creates numeric value for each
195
+ parameter thereby total number of NK cells and percentage NK cells are calculated. Absolute
196
+ lymphocyte count (ALC) was also estimated using this procedure.
197
+ Interventions
198
+ The intervention group received “integrated yoga program” and the control group received “supportive
199
+ counseling sessions” both imparted as individual sessions. The objectives of this yoga intervention as
200
+ described to participants were as follows: (i) to develop an opportunity to understand one's personal
201
+ responses to daily stress and explore ways and means to cope with them, (ii) to learn concepts and
202
+ techniques which bring about stress reduction and change in appraisal, and (iii) to enable the
203
+ participants to take an active part in their self-care and healing.
204
+ The yoga practices consisted of a set of asanas (postures done with awareness) breathing exercises,
205
+ pranayama (voluntarily regulated nostril breathing), meditation, and yogic relaxation techniques with
206
+ imagery. These practices were based on principles of attention diversion, awareness and relaxation to
207
+ cope with stressful experiences.
208
+ The sessions began with didactic lectures and interactive sessions on philosophical concepts of yoga
209
+ and importance of these in managing day-to-day stressful experiences (10 min) beginning every
210
+ session. This was followed by a preparatory practice (20 min) with few easy yoga postures, breathing
211
+ exercises, and pranayama and yogic relaxation. The subjects were then guided through any one of these
212
+ meditation practices for next 30 min which included focusing awareness on sounds and chants from
213
+ Vedic texts,[21] or breath awareness and impulses of touch emanating from palms and fingers while
214
+ practicing yogic mudras, or a dynamic form of meditation (cyclic meditation) which involved practice
215
+ with eyes closed of four yoga postures interspersed with relaxation while supine, thus achieving a
216
+ combination of both “stimulating” and “calming,” practice.[22] In meditation, participants try to
217
+ develop clarity in their thinking, learn to observe their own mind, decrease negative mind states and
218
+ develop positive mind states, and maintain equipoise in their emotions. These sessions were followed
219
+ by informal individual counseling sessions that focused on problems related to impediments in home
220
+ practice, clarification of participant's doubts, motivation, and supportive interaction with spouses. The
221
+ participants were also informed about practical day-to-day application of awareness and relaxation to
222
+ attain a state of equanimity during stressful situations and were given homework in learning to adapt to
223
+ such situations by applying these principles.
224
+ The subjects were given booklets and instructions on these practices and were encouraged to pursue
225
+ relevant themes and gain greater depth through proficiency in practice. Subjects were provided
226
+ audiotapes of these practices for home practice using the instructor's voice so that a familiar voice
227
+ could be heard on the cassette. Subjects were asked to attend yoga intervention at least two times/week
228
+ for 12 weeks. The control groups were imparted supportive counseling during their hospital visits.
229
+ Patients were exposed to at least 24 in person sessions with home practice on the remaining days.
230
+ Patients were asked to maintain a diary noting their daily activity, daily yoga schedule, duration of
231
+ practice, intake of medications, and distressing symptoms if any, etc.
232
+ Their homework was monitored on a day-to-day basis by their instructor who conducted weekly house
233
+ visits, and participants were also encouraged to maintain a daily log listing the yoga practices done, use
234
+ of audiovisual aids, duration of practice, experience of distressful symptoms, and diet history. There
235
+ were two instructors in all one being a physician in naturopathy and yoga and other a trained and
236
+ certified therapist in yoga from the yoga institute. They together supervised and imparted the yoga
237
+ intervention while trained social workers and counselors at the cancer hospital imparted supportive
238
+ therapy intervention.
239
+ Control intervention-supportive counseling sessions
240
+ Supportive counseling sessions as control intervention included two important components “education
241
+ and reinforcing social support.” The reasons why we chose to have education and supportive therapy
242
+ sessions as control intervention are 3-fold.
243
+ This was used as a control intervention to control for the nonspecific effects of the program that may be
244
+ associated with adjustments such as attention, support, and a sense of control. In fact, these didactic
245
+ educational interventions are known to improve quality of life of women with breast cancer[23,24] and
246
+ serve as an effective coping preparation in controlling chemotherapy-related side effects.[25]
247
+ Even though the use of education and supportive therapy is a form of enhanced usual care, if yoga
248
+ program does not provide any benefit over this intervention, then we will know that didactic
249
+ educational programs should be integrated within the standard of care.
250
+ Similar supportive sessions have been used successfully as a control comparison group to evaluate
251
+ psychotherapeutic interventions.[26,27] These sessions aimed at enriching the patient's knowledge of
252
+ their disease and treatment options, thereby reducing any apprehensions and anxiety regarding their
253
+ treatment and involved interaction with the patient's spouses. Subjects and their caretakers were invited
254
+ to participate in an introductory session lasting 60 min before starting any conventional treatment
255
+ wherein they were given information about each conventional treatment and management of its related
256
+ side effects, dietary advice, providing information about a variety of common questions and showing a
257
+ patient coping successfully. This counseling was extended over the course of their intervention during
258
+ their hospital visits (once in 10 days, 15 min sessions), and participants were encouraged to meet their
259
+ counselor whenever they had any concerns or issues to discuss. Subjects in the supportive therapy
260
+ group also completed daily logs or dairies on treatment-related symptoms, medication, and diet while
261
+ the goals of yoga intervention were stress reduction and appraisal change, the goals of supportive
262
+ therapy were education, reinforcing social support, and coping preparation.
263
+ Baseline assessments were done on 91 patients in case of metastatic breast cancer patients. A total of
264
+ 66 patients contributed data to the current analyses. The reasons for dropouts were attributed to
265
+ migration to other hospitals, use of other complementary therapies (e.g., homeopathy or ayurveda),
266
+ lack of interest, time constraints, and other concurrent illness [Figure 1]. Among the 66 study
267
+ completers, 46 out of 66 completers gave the saliva samples as per protocol. Fifteen subjects (yoga n =
268
+ 5, control, n = 10) in the study were not comfortable in giving saliva samples. Subjects who missed
269
+ collecting saliva sample on consecutive days at the same time were excluded from the analysis (n = 5).
270
+ Open in a separate window
271
+ Figure 1
272
+ Trial profile
273
+ Data analysis
274
+ Statistical procedures were conducted using SPSS version 10 (Sun Micro solutions, Gujarat, India) for
275
+ PC Windows 2000. The data of baseline and follow-up of both the groups were assessed with tests for
276
+ normality and homogeneity using Shapiro–Wilks test and one-way ANOVA. We used the analysis of
277
+ covariance (ANCOVA) to study the effects of intervention on outcome measures at follow-up
278
+ assessments using their respective baseline measure as a covariate. Paired samples’ t-test was done to
279
+ see within-group changes. All analyses were carried out with intention to treat principle to account for
280
+ missing values and dropouts.
281
+ Diurnal salivary cortisol
282
+ Mean cortisol levels for specific time points over a 3-consecutive days were extrapolated at 0600,
283
+ 0900, 2100 hrs. The diurnal cortisol response was evaluated by calculating the area under curve for
284
+ time 0600, 0900 and 2100 h. This helps to limit the amount of statistical comparisons between groups
285
+ to minimize the correction of the α-error probability. With the AUC variables, the number of repeated
286
+ measurements is irrelevant and thus, the number of statistical comparisons only depends on the number
287
+ of groups to be compared. With the two AUC formulas, AUCg for baseline diurnal cortisol
288
+ measurements and AUCi increase in the AUC with respect to AUCg for postmeasure using trapezoidal
289
+ method,[28] different aspects of the time course of the repeated measurements could be assessed. The
290
+ slope of diurnal cortisol rhythm was analyzed using random coefficient modeling (i.e., “linear mixed
291
+ models”), which has been advocated by some researchers.[29] Slopes were compared at baseline and at
292
+ postmeasurements in both the groups. Alternatively, nonparametric Mann–Whitney U-test and
293
+ Wilcoxon-signed rank test were also done for variables with skewed distribution.
294
+ Rඍඛඝඔගඛ
295
+ Sociodemographic and medical characteristics of the study sample
296
+ The mean age of participants was 48.9 ± 9.1 years in yoga and 50.2 ± 9.2 years in control groups.
297
+ Twenty-Six subjects underwent surgery, chemotherapy, radiotherapy and chemotherapy, 11 subjects
298
+ received chemotherapy and radiotherapy and eight subjects underwent surgery and radiotherapy as
299
+ primary treatment. Participants in both groups were comparable with respect to sociodemographic and
300
+ medical characteristics. A goodness of fit test run on all these demographic variables did not show any
301
+ significant changes between yoga and supportive therapy groups (P > 0.05) [Table 1].
302
+ Table 1
303
+ Demographic and medical characteristics of the initially randomized sample
304
+ Insomnia Rating Scale
305
+ Insomnia Rating Scale symptom distress
306
+ Insomnia Rating Scale sleep parameters
307
+ Insomnia Rating Scale quality of life
308
+ Insomnia Rating Scale total scores
309
+ Diurnal salivary cortisol levels
310
+ ANCOVA on postmeasures using baseline symptom distress
311
+ scores as a covariate showed a significant difference between groups with better decrease in symptom
312
+ distress scores in yoga compared to control group [F (1,61) = 21.23, P < 0.001, ES-1.2, Percentage
313
+ change (PC) - 91.31%]. Paired-sample t-test done to assess within group change showed a significant
314
+ decrease in symptom distress scores in yoga group only (t = 3.1, P = 0.004) and not in the control
315
+ group (t = −1.32, P = 0.19) [Table 2].
316
+ Table 2
317
+ Comparison of Insomnia Rating Scale scores using analysis of covariance between yoga and
318
+ control groups with the respective baseline measure as a covariate
319
+ ANCOVA on postmeasures using baseline sleep distress
320
+ parameter scores as a covariate showed a significant difference between groups with better decrease in
321
+ sleep distress parameter scores in yoga compared to control group [F (1,61) = 5.75, P = 0.02, ES - 0.6,
322
+ PC - 111.43%]. Paired-sample t-test done to assess within group change showed a significant decrease
323
+ in sleep distress parameter scores in yoga group only (t = 2.5, P = 0.01) and not in the control group (t
324
+ = −1.30, P = 0.20) [Table 2].
325
+ ANCOVA on postmeasures using baseline sleep quality of life
326
+ scores as a covariate showed a significant difference between groups with better decrease in sleep
327
+ quality of life scores in yoga compared to control group [F (1,61) = 13.03, P = 0.001, ES - 0.9, PC -
328
+ 20.25%]. Paired-sample t-test done to assess within group change showed a significant decrease in
329
+ sleep quality of life scores in yoga group only (t = 2.9, P = 0.006) and not in the control group (t =
330
+ 0.78, P = 0.44) [Table 2].
331
+ ANCOVA on postmeasures using baseline sleep total distress scores
332
+ as a covariate showed a significant difference between groups with better decrease in sleep total
333
+ distress scores in yoga compared to control group [F (1,61) = 22.40, P = 0.001, ES - 1.2, PC - 70.77%].
334
+ Paired-sample t-test done to assess within group change showed a significant decrease in sleep total
335
+ distress scores in yoga group only (t = 3.3, P = 0.002) and not in the control group (t = −1.33, P = 0.19)
336
+ [Table 2].
337
+ ANCOVA was used to assess between-group differences using baseline
338
+ cortisol value (for the corresponding time) as a covariate did not show any significant change. A liner
339
+ mixed effects model using R software showed no difference in precortisol slopes (P = 0.67, t = 0.41)
340
+ and postcortisol slopes (post: P =0.42, t = 0.8) between groups [Table 3]. Paired-samples t-test to assess
341
+ within group change following intervention showed a significant decrease in 0600 h. Cortisol (t = 2.28,
342
+ P = 0.031) in yoga group alone but not in the control group (t = −0.31, P = 0.76) [Table 3].
343
+ Natural killer cell count and percentage
344
+ Absolute lymphocyte count
345
+ Adherence to intervention
346
+ Table 3
347
+ Results of diurnal cortisol levels after intervention using paired t-test and analysis of covariance
348
+ ANCOVA was used to assess between-group differences using
349
+ baseline NK cell % value as a covariate showed significant improvement in NK cell % in yoga group
350
+ compared to control group [F (1, 31) = 5.43, P = 0.03, ES - 0.5, PC - 32.43%]. Other parameters such
351
+ as NK cell count did not show any significant difference between groups. Paired-samples t-test to
352
+ assess within group change following intervention showed a significant increase in NK cell % (t =
353
+ −3.10, P < 0.01) in yoga group alone but not in the control group (t = 1.03, P = 0.32) [Table 4].
354
+ Table 4
355
+ Comparison of mean values of natural killer cell and absolute lymphocyte count levels using
356
+ paired t-test and analysis of covariance
357
+ The baseline values of ALC were different in the two groups. There was no
358
+ significant change within or between groups in ALC [Table 4].
359
+ In this study, the adherence was good with 80% attending 24 supervised
360
+ sessions. There was a significant decrease in 9 am salivary cortisol levels (t = −3.6, P = 0.001) in those
361
+ who attended >20 classes as compared to those attending <20 classes on independent samples t-test [
362
+ Table 5].
363
+ Table 5
364
+ Comparison of change scores on salivary cortisol and natural killer cell counts using
365
+ independent samples t-test between those attending yoga classes (>20/<20 classes) in yoga
366
+ group
367
+ Dඑඛඋඝඛඛඑ඗ඖ
368
+ Sleep on Pittsburg Insomnia Rating Scale
369
+ In this study, there was a significant decrease in symptom distress (91.3%, ES = 1.2), sleep parameters
370
+ (111.4%, ES = 0.6), quality of life (20.3%, ES = 0.9), and overall insomnia score (70.8%, ES = 1.2).
371
+ Our results are consistent with earlier findings with mindfulness-based stress reduction intervention
372
+ that has shown improvement in overall sleep quality by 20.4%.[30] Insomnia has been related to poor
373
+ NK cell function, higher morning cortisol levels and abnormal diurnal rhythms in breast cancer
374
+ patients.[8] This is an important problem as it seems to worsen with age and psychological distress.[5]
375
+ This is also one of the important symptoms in the cancer care continuum expressed often by patients.
376
+ [4] Improving sleep duration, quality, and restoring the normal sleep rhythms are important to preserve
377
+ immune homeostasis and quality of life. The improvements seen with our intervention suggests that
378
+ yoga could be used as an adjunct to manage sleep disorders in cancer patients.
379
+ Diurnal salivary cortisol level
380
+ There was also a significant decrease in early morning salivary cortisol levels in the advanced breast
381
+ cancer study in yoga group only (40.9%, ES = 0.5). The decrease in morning salivary cortisol levels
382
+ suggests possible stress-reducing benefits of yoga intervention. Our results are similar to earlier studies
383
+ that have shown similar decreases in cortisol in early breast cancer study undergoing adjuvant
384
+ radiotherapy.[17] Our results are also similar to changes (16%–45%) in cortisol seen with behavioral
385
+ interventions in cancer populations.[13,31,32] While these earlier studies have measured one time
386
+ plasma cortisol, we chose to assess both morning and evening levels of free salivary cortisol as changes
387
+ in the rate of cortisol secretion over a day (diurnal cortisol rhythm) is considered as a robust measure
388
+ compared to onetime cortisol assessment.[8,33] Earlier studies with similar stress reduction
389
+ interventions such as MBSR have also shown decrements in cortisol in breast cancer patients who had
390
+ initially high cortisol levels suggesting that more distressed patients tend to benefit with stress
391
+ reduction intervention.[18] However, there was no difference in both high and low basal cortisol
392
+ groups in our study.
393
+ One of the major limitations in this study is the inequality in contact duration of interventions.
394
+ Supportive therapy interventions were used with an intention of negating the confounding variables
395
+ such as instructor-patient interaction, education, and attention.[27] However, inequality in contact
396
+ duration of this intervention could have affected its effectiveness as successes of such interventions
397
+ depend mainly on contact duration and content. Similar supportive sessions have been used
398
+ successfully as a control comparison group to evaluate psychotherapeutic interventions[26,27] and
399
+ have been effective in controlling chemotherapy-related side effects.
400
+ C඗ඖඋඔඝඛඑ඗ඖ
401
+ Future studies should unravel the putative mechanisms and aspects of hypothalamic-pituitary-adrenal
402
+ axes dysregulations and assess neuroendocrine responses to artificially induced stressors in the
403
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+ Acknowledgments
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subfolder_0/Effect of Yoga on homocysteine level, symptomatology and quality of life in industrial workers with Chronic Venous Insufficiency_ Study protocol for a randomized controlled trial - ScienceDirect.txt ADDED
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1
+ Get rights and content
2
+ Advances in Integrative Medicine
3
+ Volume 9, Issue 2, May 2022, Pages 119-125
4
+ Study Protocol
5
+ Effect of Yoga on homocysteine level, symptomatology and
6
+ quality of life in industrial workers with Chronic Venous
7
+ Insufficiency: Study protocol for a randomized controlled trial
8
+ U. Yamuna, Vijaya Majumdar, Apar Avinash Saoji
9
+ Division of Yoga and Life Sciences, Swami Vivekananda Yoga, Anusandhana Samsthana, # 19, Eknath
10
+ Bhavan, Gavipuram Circle, KG Nagar, Bengaluru 560019, India
11
+ Received 11 November 2021, Accepted 8 February 2022, Available online 11 February 2022, Version of Record 9
12
+ June 2022.
13
+ Show less
14
+ https://doi.org/10.1016/j.aimed.2022.02.002
15
+ Abstract
16
+ Background and objectives
17
+ Chronic Venous Insufficiency (CVI) is often associated with prolonged standing at work. CVI
18
+ could lead to multiple symptoms and vascular inflammation. Yoga as therapy has helped in
19
+ mitigating several occupational hazards. The current study protocol is designed to assess the
20
+ effect of Yoga on CVI.
21
+ Materials and methods
22
+ Share
23
+ Cite
24
+ One hundred industry workers with CVI will be randomly allotted to Yoga and wait-list
25
+ control groups following an equal allocation ratio. Yoga group will receive a specially designed
26
+ Yoga module six days a week for three months. The Control group will continue with the
27
+ routine activities. Serum homocysteine, Venous Clinical Severity Scale (VCSS), Ankle Brachial
28
+ pressure index and psychological status will be assessed at baseline and the end of three
29
+ months of intervention.
30
+ Statistical analyses
31
+ Data will be tested for normality and appropriate tests will be used to assess the differences
32
+ between the groups.
33
+ Expected outcomes
34
+ Specifically designed Yoga module will help to reduce the vascular inflammation, symptoms
35
+ of CVI and enhance psychological functioning.
36
+ Introduction
37
+ Chronic Venous Insufficiency (CVI) is one of the peripheral venous diseases which involve the
38
+ retrograde flow of blood in the lower extremities of the venous system [1]. Pathophysiology of
39
+ CVI involves multiple factors such as valve incompetence, calf muscle dysfunction, and
40
+ venous stasis [2]. Valve incompetence causes blood stasis, increases venous blood pressure, and
41
+ leads to venous dilation, inflammation, and vein wall weakness [3], [4]. The clinical symptoms
42
+ of CVI result from increased venous pressure, venous dilation, and valve incompetence. The
43
+ common symptoms of CVI include itching, pain, heaviness in the legs, ache, skin color
44
+ changes [5]. Symptoms are not much severe at the initial stage of CVI, depending on age,
45
+ gender, body mass index. Manifestation of the disease may reach secondary conditions such as
46
+ leg ulcers and deep vein thrombosis [6]. General risk factors for CVI are age, obesity, strong
47
+ family tendency, gender, and occupations that demand prolonged standing at workplaces [6],
48
+ [7], [8]. However, studies on the gender-wise prevalence of CVI report conflicting outcomes. A
49
+ study conducted in the United Kingdom reported the prevalence of CVI being more in men
50
+ (40%) than women (32%) [9]. Another epidemiological study indicated the prevalence of CVI to
51
+ be higher in women than in men [10]. Though we see a general trend of higher prevalence of
52
+ CVI in men, however, women tend to manifest the disease their pregnancy given the increased
53
+ intrabdominal pressure.
54
+ Prolonged standing at the workplace is one of the main contributors to CVI. Pathogenesis
55
+ originates from the dilation of superficial veins and causes morphologic abnormalities [11].
56
+ An extended period of standing increases pressure in the veins of the legs, thereby affecting
57
+ the pumping function of the calf muscle. Such changes lead to valve incompetence and
58
+ damage [12]. A study conducted on which industrial workers concluded that those who used to
59
+ stand for longer duration (>50% of working hours) had a higher prevalence of CVI compared
60
+ to those who spent less time standing [13].fl
61
+ Vascular inflammation is a key feature in the etiopathogenesis of CVI and the associated
62
+ complications. Hyperhomocysteinemia (HHcy), increased circulating homocysteine level [14],
63
+ [15] is a well-established marker of vascular inflammation. HHcy is also associated with
64
+ peripheral vascular disorders, deep vein thrombosis and coronary artery disorders [14]. In
65
+ CVI, HHcy is commonly manifested [16]. An increased concentration of homocysteine is also
66
+ associated with platelet activation, endothelial injury, and thrombosis. [17], [18]. Its plausible
67
+ role in endothelial dysfunction could underline the etiological link between HHcy with
68
+ vascular diseases and vascular inflammation, accompanied by accelerated vein wall leakage,
69
+ and increased recruitment of leukocytes to endothelium [19].
70
+ Lifestyle modification-related activities like leg elevation exercise, walking, and weight loss are
71
+ recommended in CVI management [20]. Studies indicate a beneficial role of physical exercises
72
+ in reducing reflux blood volume [21] and venous hypertension [22]. However, a reported
73
+ review indicated insufficient evidence for the role of exercise in the management of CVI [23].
74
+ Another Meta-analysis found improvements in calf muscle functions and venous
75
+ hemodynamics with physical exercise and recommended further clinical trials to ascertain the
76
+ role of exercise in CVI management [24].
77
+ Though well recognized, the relevance of preventive measures has been seldomly given
78
+ enough attention. In 1997, Krijnen et al. reported beneficial impact of compression stockings
79
+ in diminishing subjective complaints and reducing diurnal leg swelling. However, we do not
80
+ find much evidence reporting the use of such measures to prevent or manage complications
81
+ of CVI. To this end, Canadian Centre for Health and Safety (CCOHS), (2016) has indicated the
82
+ importance of neutral alignment and minimizing lower extremity fatigue by using the proper
83
+ footwear and floor condition to prevent such injuries. Given the association with prolonged
84
+ standing with reduced blood supply, CCOHS advocates working in a standing position by
85
+ changing working positions frequently, avoiding extreme bending, stretching, twisting, pacing
86
+ work appropriately, and allowing workers reasonable rest periods. CCOHS also suggests using
87
+ right-sized footwear and accessories like stockings, socks, and movements to prevent and
88
+ manage CVI and other musculoskeletal issues due to prolonged standing at the workplace.
89
+ Yoga is an ancient Indian science of holistic living that has gained popularity for its
90
+ therapeutic and health-promoting effects in recent times. Yoga has been used for various
91
+ health issues such as respiratory, cardiovascular, musculoskeletal, metabolic, pain, and cancer
92
+ syndromes [25], [26]. A single case study demonstrated improvement of calf muscle pump
93
+ function, venous return, physical and mental health in CVO [27]. Yogic practices have shown
94
+ positive effects on the symptoms of venous insufficiency, which reduces the progression of the
95
+ disease.
96
+ Research studies reported that Yoga would have therapeutic benefits in reducing
97
+ inflammation, fatigue and joint rigidity. It improves the peripheral muscle strength and
98
+ strengthens the muscles of lower limbs, ankles and enhances hip and ankle strategies in an
99
+ individual [28], [29], [30], [31]. Regular yoga practice substantially minimizes inflammatory
100
+ response to stressful encounters, which has a high impact on an individual's quality of life. Afi
101
+ study reported the beneficial role of yogic postures and breathing exercises in activating
102
+ pump muscles, increasing range of movements: flexion of large muscles, maximum skin
103
+ stretch [32]. Few studies reported the positive effects of Yoga in managing pain and
104
+ lymphedema [33], [34], [35].
105
+ In different occupational settings, Yoga is found to mitigate occupational health hazards.
106
+ Different occupational settings in which Yoga is applied include healthcare professionals [36],
107
+ [37], computer professionals [38], defense personnel [39], athletes [40], etc. These studies
108
+ indicate a possible beneficial role of Yoga in mitigating the possible occupational hazards and
109
+ enhance efficiency.
110
+ CVI is a common issue among workers who need to stand for a prolonged time. Few studies
111
+ with physical therapy have demonstrated the beneficial role of active physical intervention in
112
+ managing/preventing work-related CVI. Yoga, as a mind-body approach, could be a non-
113
+ invasive and cost-effective therapy for CVI management. However, only a single case study has
114
+ implemented Yoga as an intervention for CVI with beneficial effect [27]. A study reported that
115
+ yoga would reduce the homocysteine level and restore endothelial dysfunctions in women
116
+ with primary dysmenorrhea [41]. Like Yoga, regular exercise significantly lowered plasma
117
+ homocysteine in young overweight or obese women with Polycystic ovary syndrome (PCOS), a
118
+ group at increased risk of premature atherosclerosis [15]. Evidence-based research with large
119
+ sample size is necessary to understand the efficacy of Yoga in CVI management. In this study,
120
+ we would try to understand the impact of yoga intervention on CVI symptoms and quality of
121
+ life and elicit changes in the homocysteine level as a biomarker of vascular inflammation in
122
+ CVI.
123
+ Section snippets
124
+ Objectives
125
+ The main objectives of this study is to investigate the efficacy of Yoga on homocysteine level,
126
+ symptomatology, and quality of life in industrial workers with CVI which is associated with
127
+ prolonged standing at industrial workplaces.…
128
+ Trial design
129
+ The design of this trial is a parallel group, randomized controlled trial with two parallel
130
+ groups with a 1:1 allocation ratio testing the effect of Yoga in one group against another. Fig. 1
131
+ illustrates the proposed trial profile.…
132
+ Study setting
133
+ The research study will be conducted at one of the manufacturing Industries located in Jigani,
134
+ Bangalore, from November 2021 to April 2022.…
135
+ Eligibility criteria
136
+ The participants will be selected based on the inclusion and exclusion criteria, depicted in
137
+ Table 1.…
138
+ Intervention
139
+ The specific yoga…
140
+ Research ethics approval
141
+ The trial has been reviewed and approved by the institutional ethics committee (IEC) of
142
+ Swami Vivekananda Yoga Anusandhana Samsthana (Deemed-to-be-university under Section 3
143
+ of the UGC act, 1956) in the committee meeting held on 19th December, 2020. The
144
+ institutional ethics committee clearance certificate reference number is RES/IEC-
145
+ SVYASA/184/2021. The trial has been registered in the Clinical Trials Registry-India (CTRI).
146
+ The registration number for the trial is CTRI/2021/02/030944.…
147
+ Consent
148
+ Written…
149
+ Access to data
150
+ Only the principal investigator and the study coordinator will have access to the final trial
151
+ dataset.…
152
+ Dissemination policy
153
+ The knowledge that researchers get from this research will be shared with participants
154
+ through community meetings. Confidential information will not be shared. Data will be
155
+ published the results in a peer-reviewed scientific journal and presented at national/
156
+ international conferences so that other interested people may learn from our research.…
157
+ Trial status
158
+ Recruitment and intervention is in progress.…
159
+ Fundingfi
160
+ No funding is yet received for the trial. We are trying to find funding sources for the study.…
161
+ CRediT authorship contribution statement
162
+ U. Yamuna: Writing – original draft and revised draft, Writing – review & editing. Vijaya
163
+ Majumdar: Conceptualization, Investigation, Methodology, Project administration,
164
+ Supervision, Writing – original and revised draft, Writing – review & editing. Apar Avinash
165
+ Saoji: Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project
166
+ administration, Supervision, Visualization, Writing – original and revised draft, Writing –
167
+ review & editing.…
168
+ Conflict of interest
169
+ The authors report no conflict of interests.…
170
+ References (50)
171
+ A.A.M. Biemans et al.
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+ Validation of the chronic venous insufficiency quality of life questionnaire in dutch
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+ S. Melnyk et al.
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+ A new HPLC method for the simultaneous determination of oxidized and reduced
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+ plasma aminothiols using coulometric electrochemical detection
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+ S.D. Ciezar-Andersen et al.
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+ J. Park et al.
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+ Frailty modifies the intervention effect of chair yoga on pain among older adults with
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+ lower extremity osteoarthritis: secondary analysis of a nonpharmacological
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+ R.C. Sam et al.
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+ The prevalence of hyperhomocysteinemia, methylene tetrahydrofolate reductase
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+ C677T mutation, and vitamin B12 and folate deficiency in patients with chronic
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+ Cited by (0)
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238
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239
+ Hide abstract
240
+ The use of technologies continues to grow in healthcare provision, and learning technologies
241
+ now dominate tertiary education. Meanwhile, complementary medicine (CM) constitutes a
242
+ substantial component of contemporary healthcare, yet the education of existing and future
243
+ CM practitioners has received little empirical attention. In direct response, our study
244
+ examines the perceptions of CM students and faculty related specifically to health and
245
+ learning technologies in clinical CM work and education.
246
+ A cross-sectional online survey was administered to all current students (n = 4851) and
247
+ tenured, contracted and adjunct academics (n =530) at two CM education institutions – in the
248
+ US and in Australia.
249
+ Most student respondents (n = 134, 49%) reported that they either felt they were unsure if
250
+ they would use telehealth in clinical practice or that they would use it (n = 116, 43%). The
251
+ majority of all academic respondents did not believe it possible to conduct basic clinical
252
+ processes online such as reading a patient's body language (M3.8, SD 1.0), conducting quality
253
+ clinical training in CM settings (M3.2, SD 1.3) or learning rapport skills (M3.2, SD 1.2). Of
254
+ those academics who were also in clinical practice, only a small number reported conducting
255
+ virtual consultations in their CM work (n = 7,15.9%).
256
+ Our findings highlight a potential disparity of perceptions between academics and students
257
+ in these CM educational settings especially in relation to telehealth. Academics expressedfi
258
+ hesitancy to fully rely on technologies to develop practitioners in a field where ‘formation of
259
+ professional character’ is considered so important.
260
+ View full text
261
+ © 2022 Elsevier Ltd. All rights reserved.
262
+ Copyright © 2022 Elsevier B.V. or its licensors or contributors.
263
+ ScienceDirect ® is a registered trademark of Elsevier B.V.
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+ See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/301204057
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+ Effect of a Ten-Day Yoga-Based Vacation Program on Short-Term and Working
3
+ Memory in Schoolchildren
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+ Article · October 2015
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+ CITATION
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+ 183
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+ 1 author:
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+ Some of the authors of this publication are also working on these related projects:
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+ Kashinath Metri
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+ 48 PUBLICATIONS   168 CITATIONS   
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+ All content following this page was uploaded by Kashinath Metri on 12 April 2016.
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+ Ayurveda Journal of Health
20
+ VOL. XIII, ISSUE 1, WINTER 2015
21
+ 37
22
+ Abstract
23
+ Background: Memory is an important component of
24
+ cognition and good memory in schoolchildren helps
25
+ them to perform better in school. Yoga is known to
26
+ improve cognitive function in school children and
27
+ this study examines if yoga can improve memory in
28
+ schoolchildren.
29
+ Aim: To see the effect of a ten-day yoga-based vacation
30
+ program on short-term and working memory in
31
+ schoolchildren.
32
+ Methods: Sixty schoolchildren aged 10-11 years, who
33
+ attended a yoga-based training summer vacation
34
+ program were enrolled in this study. All students
35
+ underwent a 10-day intense yoga program consisting
36
+ of Àsanas (physical postures), prÀõÀyÀma (breathing
37
+ practices), meditation, relaxation techniques, and
38
+ yogic games. Short-term and working memory was
39
+ assessed by the digit forward–backward span test
40
+ before and at the end of the training program.
41
+ Results: A significant improvement in digit span
42
+ score (p < 0.001) was observed at the end of the 10-
43
+ day training program.
44
+ Conclusion: The 10-day yoga program was found to
45
+ significantly improve both short-term and working
46
+ memory in the schoolchildren who participated in
47
+ the program. The improvement in working memory
48
+ (23.24%) is greater than short-term memory (11.67%).
49
+ Keywords: Yoga, memory, children, digit forward,
50
+ backward.
51
+ Introduction
52
+ The term memory implies the capacity to encode,
53
+ store, and retrieve information.1 It is one of our most
54
+ important cognitive functions. It is essential for
55
+ Effect of a Ten-Day Yoga-Based Vacation
56
+ Program on Short-Term and Working
57
+ Memory in Schoolchildren
58
+ B.N. Hema,1 G.M. Kashinath,1 H.R. Nagendra1
59
+ children to have a good memory
60
+ for better school performance and
61
+ an efficient memory is necessary
62
+ to excel in the current educational
63
+ system. Unfortunately there is a
64
+ lack of viable interventions in the
65
+ current education system that can
66
+ enhance memory.2 Hence there is a need for an
67
+ intervention which can help improve memory in
68
+ schoolchildren. This study evaluates the effect of
69
+ yoga on short-term and working memory. Short-
70
+ term memory allows for recall for a period of several
71
+ seconds to a minute without rehearsal. The capacity
72
+ of short-term memory is also very limited, and is
73
+ typically on the order of 4-5 items.3 Working memory
74
+ is a form of short-term memory that allows us to
75
+ hold an idea in our mind long enough to carry out
76
+ an action, such as calling a telephone number we
77
+ just looked up.
78
+ Yoga is an ancient science that was practiced by
79
+ our ancient sages for many higher purposes. A
80
+ modern form of yoga is currently very popular
81
+ around the world. In recent decades, scientific
82
+ research on yoga has revealed its potential role in
83
+ prevention, treatment, and management of many
84
+ health-related issues. It has been also reported that
85
+ yoga has the potential for improving cognitive
86
+ function including attention,4 concentration,5
87
+ memory,6 and planning.7 The current study examines
88
+ the effect of the Personality Development Course
89
+ on memory in schoolchildren. The Personality
90
+ Development Course is a 10-day yoga-based summer
91
+ vacation program for schoolchildren conducted by
92
+ S-VYASA University, Bangalore. Previous studies
93
+ have shown that this program resulted in significant
94
+ improvements in planning8 and attention. This study
95
+ examines the effect of this program on short-term
96
+ and working memory.
97
+ 1
98
+ Division of Yoga and Life Sciences, Swami Vivekananda
99
+ Yoga Anusandhana Samsthana (S-VYASA University),
100
+ No. 19, Ekanath Bhavan, Gavipuram Circle, K.G. Nagar,
101
+ Bangalore - 590 019.
102
+ Ayurveda Journal of Health
103
+ VOL. XIII, ISSUE 1, WINTER 2015
104
+ 38
105
+ Methods
106
+ SUBJECTS
107
+ Sixty school children (11-12 years old) attending the
108
+ 10-day yoga training course during their summer
109
+ vacation were enrolled in this study. Children were
110
+ excluded from the study if they had any history of
111
+ neurological or psychiatric issues, used any
112
+ medication that affected the central nervous system,
113
+ or had any documented learning disabilities.
114
+ Intervention
115
+ The subjects participated in the 10-day yoga training
116
+ program for eight hours each day. The program
117
+ consisted of different sessions on physical postures
118
+ (yogÀsanas, 1½ hr), breathing practices (prÀõÀyÀma,
119
+ 1 hr), internal cleansing practices, including eye-
120
+ cleansing techniques (kriyÀs, ½ hour), meditation and
121
+ devotional sessions (1½ hr), and guided relaxation
122
+ (½ hr). In addition to these particular practices, the
123
+ program also involved games (2 hr) and telling of
124
+ meaningful stories (1 hr) to promote a sense of values
125
+ and feelings of responsibility.
126
+ Assessment
127
+ DIGIT SPAN FORWARD AND BACKWARD
128
+ Digit Span (DS) is a sub-test in the Wechsler Adult
129
+ Intelligence Scale, 3rd ed (WAIS-III).9 It includes two
130
+ sub-sections (DS-Forward and DS-Backward), and
131
+ is considered a good tool to evaluate short-term
132
+ memory and working memory. DS-F evaluates short-
133
+ term memory by simply requiring participants to
134
+ repeat numbers. DS-B assesses working memory by
135
+ requiring participants to memorize numbers and to
136
+ repeat the numbers in the opposite order. For DS-F,
137
+ participants repeat numbers in the same order as
138
+ they were read aloud by the assessor. For DS-B,
139
+ participants repeat numbers in the opposite order
140
+ of that presented aloud by the assessor. Thus, In
141
+ both sub-tests, the assessor reads a series of number
142
+ sequences which the participant must repeat in either
143
+ forward or reverse order. DS-F has 16 sequences.
144
+ DS-B has 14 sequences. The primary measures of this
145
+ test are raw scores that reflect the number of
146
+ correctly repeated sequences until the discontinue
147
+ criterion (that is, failure to reproduce two sequences
148
+ of equal length) is met. The maximum raw score of
149
+ DS-F is 16. The maximum raw score of DS-B is 14.
150
+ Data Analysis
151
+ Data was analysed using SPSS software (version 10).
152
+ A paired sample t-test was used to analyze the pre
153
+ and post changes.
154
+ Results
155
+ Normal distribution of the data was confirmed by
156
+ Shapiro-wilk test and the paired sample test was
157
+ applied to see the pre/post-changes which show the
158
+ significant increase in digit span test scores (p < 0.001)
159
+ after 10 days of the yoga-based training. Figure 1
160
+ shows that the mean digit span score significantly
161
+ increased after the children participated in the 10-
162
+ day yoga program.
163
+ Thus, the 10-day yoga program was found to
164
+ significantly improve both short-term and working
165
+ memory in the schoolchildren who participated in
166
+ the program. The improvement in working memory
167
+ (23.24%) is greater than that observed for short-term
168
+ memory (11.67%).
169
+ Discussion
170
+ fig. 1: Changes in digit span score before and after 10 days of
171
+ yoga training. The mean of the digit span score increases from
172
+ 18.01 to 20.91 following the 10-day yoga program. *p < 0.001.
173
+ This study was designed to determine the influence
174
+ of a 10-day yoga training program on short-term
175
+ and working memory in 60 schoolchildren. The
176
+ training program resulted in a significant
177
+ improvement in both short-term and working
178
+ memory. Our results confirm previous studies that
179
+ have demonstrated that yoga is effective in
180
+ enhancing memory in schoolchildren. In one study,
181
+ a yoga-based education system was shown to
182
+ improve spatial memory.10 The results of the current
183
+ study are similar to earlier studies that have
184
+ examined the effect of yoga on memory.
185
+ Ayurveda Journal of Health
186
+ VOL. XIII, ISSUE 1, WINTER 2015
187
+ 39
188
+ Yoga is well known to reduce anxiety11 and
189
+ provides deep relaxation at both the physical and
190
+ psychological levels.12 The findings that yoga improves
191
+ memory could be due to the reduction of anxiety and
192
+ the enhanced relaxation which is achieved by the
193
+ practice of yoga Àsanas and prÀõÀyÀma, mediation
194
+ and yogic game sessions. Although religious chantings
195
+ like OÛ, GÀytrÁ mantra, and m¦tyuðjaya mantra are
196
+ effective in improving cognitive function in the
197
+ children, these practices cannot be widely adopted in
198
+ the schools, because schools include children with
199
+ different religious backgrounds. Hence it is always
200
+ better to include just Àsanas, prÀõÀyÀma, meditation,
201
+ and yogic games within the conventional education
202
+ system as a yoga session.
203
+ The strength of this study is that it is the first
204
+ study to show that yoga improves short-term and
205
+ working memory in schoolchildren. It should be noted
206
+ that a limitation of this study was the lack of a control
207
+ group. None the less, the current study suggests that
208
+ introducing yoga into the school education curriculum
209
+ is beneficial for improving memory in schoolchildren.
210
+ Future studies will extend these findings to determine
211
+ the effect of intense yoga-based training programs
212
+ on immunological and stress markers.
213
+ Conclusion
214
+ A 10-day yoga program may help to improve short-
215
+ term and working memory in schoolchildren. Hence
216
+ it is important to introduce into the regular school
217
+ curriculum, a yoga session which includes, Àsanas,
218
+ prÀõÀyÀma, meditation, and some yogic games, in
219
+ order to help improve memory in schoolchildren.
220
+ References
221
+ 1
222
+ A.W. Robert, C.K. Frank, 2001, MIT Encyclopedia of
223
+ Cognitive Science: A Bradford Book, Massachusetts
224
+ London: The MIT Press Cambridge.
225
+ 2
226
+ B.
227
+ Pradhan, H.R.
228
+ Nagendra,
229
+ 2009,
230
+ Effect
231
+ of Yoga Relaxation Techniques on Performance of Digit-
232
+ Table 1: Pre and Post Changes in the Digit Forward–Backward Span Test
233
+ Varibale
234
+ Pre-yoga
235
+ Post-yoga
236
+ p-Value
237
+ % Change
238
+ (Mean ± SD)
239
+ (Mean ± SD)
240
+ Digit forward
241
+ 11.13 ± 1.35
242
+ 12.43 ± 1.80
243
+ <0.001*a
244
+ 11.67
245
+ Digit backward
246
+ 6.88 ± 1.50
247
+ 8.48 ± 1.77
248
+ <0.001*a
249
+ 23.24
250
+ Digit forward–backward span
251
+ 18.02 ± 2.44
252
+ 20.92 ± 3.13
253
+ < 0.001*b
254
+ 16.09
255
+ a Wicoxon signed rank test, b paired sample t-test, and *significant change at< 0.001 level.
256
+ Dr. Kashinath G. Metri, BAMS, MD is Assistant
257
+ Professor at S-VYASA University Bengaluru, India.
258
+ He has a Bachelors in Ayurveda Medicine from Rajiv
259
+ Gandhi University Bengaluru, India and Doctor of
260
+ Medicine in Yoga and Rehabilitation from S-VYASA
261
+ University, Bengaluru, India. He has guided more
262
+ than 10 postgraduates of yoga in their research work
263
+ in yoga therapy and is currently guiding 15 post-
264
+ graduates. Dr. Metri has more than 10 articles
265
+ published in international peer-reviewed journals
266
+ in the field of Yoga and Ayurveda.
267
+ Email: [email protected] Mob.: +91 9035257626
268
+ letter Substitution Task by Teenagers, Int J Yoga, 2(1):
269
+ 30-34.
270
+ 3
271
+ N. Cowan, 2001, The Magical Number 4 in Short-term
272
+ Memory: A Reconsideration of Mental Storage
273
+ Capacity, Behav Brain Sci., February, 24(1): 87-114;
274
+ discussion on pp. 114-85.
275
+ 4
276
+ Shirley Telles, P. Raghuraj, Dhananjay Arankalle, K.V.
277
+ Naveen, 2008, Immediate Effect of High-Frequency
278
+ Yoga Breathing on Attention, Indian Journal of Medical
279
+ Sciences, 62(1): 20-22.
280
+ 5
281
+ J.T. Hopkins, L.J. Hopkins, 1979, A Study of Yoga and
282
+ Concentration, Academic Therapy, 14(3): 341-45.
283
+ 6
284
+ K.V. Naveen, R. Nagaratna, H.R. Nmagendra, Shelrey
285
+ Telles, 1997, Yoga Breathing Through a Particular Nostril
286
+ Increases Special Memory Score without Latelization,
287
+ Physiological Effects, 81: 555-61.
288
+ 7
289
+ N.K. Manjunath, Shirley Telles, 2001, Improved
290
+ Performance in the Tower of London Test Following
291
+ Yoga, Indian J Physiol Pharmacol, 45(3): 351-54.
292
+ 8
293
+ A. Kadambini, 2005, Effect of Yoga on Performance in a
294
+ Planning Task in Tower of London Test, MSc thesis: S-
295
+ VYASA University.
296
+ 9
297
+ D.A. Wechsler, 1997, Wechsler Adult Intelligence Scale,
298
+ 3rd ed, San Antonio: The Psychological Corporation.
299
+ 1 0
300
+ R. Rangan, H.R. Nagendra, G. Ramachandra Bhat, 2009,
301
+ Effect of Yogic Education System and Modern Education
302
+ System on Memory, Int J Yoga, 2.
303
+ 1 1
304
+ G. Kirkwood, H. Rampes, V. Tuffrey, J. Richardson, K.
305
+ Pilkington, 2005, Yoga for Anxiety: A Systematic Review
306
+ of the Research Evidence, Br J Sports Med, 39: 884-91.
307
+ 1 2
308
+ Ibid., J R Soc Med., 86: 5254-58.
309
+ View publication stats
310
+ View publication stats
subfolder_0/Effect of anapanasati meditation on anxiety a randomized control trial.txt ADDED
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1
+ ANNALS OF NEUROSCIENCES  VOLUME 26  NUMBER 1  JANUARY 2019
2
+ www.annalsofneurosciences.org
3
+ 32
4
+ ANNALS
5
+ RES ARTICLE
6
+ Effect of anapanasati meditation on anxiety: a randomized
7
+ control trial
8
+ B. Sivaramappaa, Sudheer Deshpandeb, P Venkata Giri Kumara,*, H.R. Nagendraa
9
+ a S-VYASA Yoga University, Bengaluru, Karnataka, India
10
+ b VYASA, Eknath Bhavan, Bangalore, Karnataka, India
11
+ ABSTRACT
12
+ Background: Meditation has shown positive results in improving the psychological disorders
13
+ such as anxiety. There is a need to study the therapeutic benefits of Anapanasati meditation, a
14
+ mindfulness meditation technique.
15
+ Purpose: The study aims at investigating the effect of Anapanasati meditation on individuals
16
+ with moderate anxiety.
17
+ Methods: A total of 112 participants who were willing to participate in the study were recruit-
18
+ ed for the study. Anapanasati meditation was used as an intervention. The participants were
19
+ divided into two groups experiment and control groups. Experiment group had 56 persons
20
+ performing Anapanasati meditation and Control group had 56 persons not performing any
21
+ type of meditation. The experiment group practiced one hour of Anapanasati meditation daily
22
+ under the supervision of experts for six months and continued their daily routine and control
23
+ group was not given any intervention, but they continued their daily routine. State Trait Anxiety
24
+ Inventory (STAI) is used to assess the anxiety level.
25
+ Results: The STAI score before and after Anapanasati meditation was analysed for both experi-
26
+ ment and control groups using Paired Samples T test. The experiment group has shown signif-
27
+ icant reduction in the STAI (P < 0.05) score after the intervention whereas in the control group
28
+ the reduction in STAI score was not significant.
29
+ Conclusion: This study has shown that after six months of intervention, the subjects with
30
+
31
+ moderate anxiety who practiced Anapanasati meditation had a significant decrease in their STAI
32
+ score and the control group has not shown significant change in the STAI score.
33
+ doi : 10.5214/ans.0972.7531.260107
34
+ KEY WORDS
35
+ Anapanasati meditation
36
+ State Trait Anxiety Inventory
37
+ Mindfulness
38
+ *Corresponding author:
39
+ P Venkata Giri Kumar
40
+ S-VYASA Yoga University, Vivekananda
41
+ Road
42
+ Kalluballu Post, Jigani, Anekal,
43
+ Bengaluru – 560105, Karanataka, India
44
+ Contact no +91 9880658950
45
+ E-mail: [email protected]
46
+ Introduction
47
+ Anxiety is an emotional state such as nervousness, tension,
48
+ worry or apprehension which a person perceives for various
49
+ reasons [1]. The research indicates that anxiety is closely as-
50
+ sociated to chronic allergy such as asthma, cognitive impair-
51
+ ment and dementia and many other chronic diseases such as
52
+ rheumatology [2–4]. Preoperative anxiety is commonly ex-
53
+ perienced by the patients waiting for surgery and in a study
54
+ authors suggested that listening to Tibetan music helps in
55
+ managing the preoperative levels [5]. The quality of life of the
56
+ individuals with chronic illness varies with comorbid anxiety
57
+ which emphasizes the importance of reducing the anxiety
58
+ levels [6]. Number of scales were developed for measuring
59
+ anxiety levels and State Trait Anxiety Inventory (STAI), Beck
60
+ Anxiety Inventory (BAI) and Hospital Anxiety And Depression
61
+ Scale-Anxiety (HADS-A) are widely used in assessing the anx-
62
+ iety levels in research and clinical studies [4].
63
+ Meditation is a set of self-regulatory practices [7] or psy-
64
+ chosomatic practices [8] with a focus on training the attention
65
+ and awareness such that concentration will be developed. It
66
+ is well known that meditation, one of the limbs of Patanjali
67
+ Yoga [9], plays a significant role in improving the psycholog-
68
+ ical disorders and research suggests the use of mindfulness
69
+
70
+ meditation for reducing depression and anxiety levels
71
+
72
+ [10–12]. Recently there has been increasing research interest
73
+ on therapeutic benefits of meditation for psychological disor-
74
+ ders and studies on meditation have shown significant pos-
75
+ itive results in psychological disorders [11,13–16]. Despite
76
+ the therapeutic benefits of meditation, there are considerable
77
+ discrepancies on the effect of meditation on brain as studied
78
+ by Electroencephalogram [17].
79
+ The earlier studies have considered different meditation
80
+ techniques but there were no studies done with Anapanasa-
81
+ ti meditation, a form of Mindfulness meditation. Anpanasati
82
+ meditation is the name of the meditation practice adopted
83
+ by Gautam Buddha and it is nothing but mere observation of
84
+ one’s own breath ie., inhaling and exhaling [18]. In this study
85
+ we aimed at studying the effect of Anapanasati meditation on
86
+ the individuals with moderate anxiety assessed with State
87
+ Trait Anxiety Inventory scale.
88
+ Methods
89
+ Subjects
90
+ The subjects were selected from Pyramid Valley Interna-
91
+ tional Bangalore and Pyramid Spiritual Science Academy,
92
+ Koramangala, Bangalore. A total of 112 subjects who were
93
+ www.annalsofneurosciences.org
94
+ ANNALS OF NEUROSCIENCES  VOLUME 26  NUMBER 1  JANUARY 2019
95
+ 33
96
+ ANNALS
97
+ S
98
+ RES ARTICLE
99
+ willing to participate in the study were selected for the
100
+ study. The age group ranged between 20 and 65 years.
101
+ Inclusion Criteria
102
+ Males and females within the age group of 20 to 65 years were
103
+ included in the study.
104
+ Exclusion Criteria
105
+ Individuals who have been diagnosed with diabetes, cancer,
106
+ hypertension were excluded from the study.
107
+ Design
108
+ This is a prospective random control design. The participants
109
+ were divided into two groups experiment and control. The
110
+ subjects selected for study were randomly allotted into two
111
+ groups by using random number generator program. A total
112
+ of 56 participants were included in experiment group and 56
113
+ participants were included in control group. The invigilators
114
+ coded and saved the answered questionnaires after the study.
115
+ A person not involved in group formation evaluated the coded
116
+ answer sheets. A person who was not involved in this study
117
+ decoded the answer sheets only after noting the scores before
118
+ and after data was completed.
119
+ State Trait Anxiety Inventory (STAI) [1], a self-report
120
+ questionnaire is used as the scale to study the effect of in-
121
+ tervention. STAI consists of two parts state anxiety and trait
122
+ anxiety each consisting of 20 questions which takes values
123
+ from 1 to 4. We have considered state anxiety part (STAI-S)
124
+ of the questionnaire for our study which indicates the cur-
125
+ rent state of anxiety in a specific situation when compared
126
+ to trait anxiety which is a general tendency of the individ-
127
+ ual. The score can range from 20 to 80 and the score in-
128
+ creases with anxiety levels [1]. The score greater than 40
129
+ is considered to be clinically significant score for STAI scale
130
+ [4,5]. The subjects were asked to read each statement and
131
+ select the statement which reflects the true state of the in-
132
+ dividual at that moment. The informed consent was taken
133
+ from all the participants who were willing to participate in
134
+ the study.
135
+ Intervention
136
+ Anapanasati Meditation is given as intervention to partici-
137
+ pants in the experiment group and participants were asked
138
+ to practice meditation daily one hour along with their routine
139
+ duties and there was no intervention to Control Group but
140
+ they were asked to continue their daily routine. The Medita-
141
+ tion classes were conducted six days a week for six months
142
+ under the supervision of experts. It was ensured that there
143
+ was no interaction between the groups during the entire pe-
144
+ riod of six months. The tests were administered on the first
145
+ and last day of the study. The subjects were accommodated at
146
+ a quiet environment free from distractions to fill up the ques-
147
+ tionnaires. The subjects were asked to fill up the question-
148
+ naires with experts present for any clarification and without
149
+ consulting other subject while filling up the questionnaire.
150
+ Statistical Analysis
151
+ The data were analysed using SPSS Statistics Version 10. The
152
+ data was presented as mean ± standard deviation. The data
153
+ was assessed for normality using Kolmogorov-Smirnov test
154
+ and STAI score was found to be normal in both experimental
155
+ and control groups. P value <0.05 is considered statistically
156
+ significant for all comparisons and the data were reported to
157
+ two significant figures. The statistical tests used were Paired
158
+ Samples t-test for pre-post comparison within the groups. The
159
+ Cohen’s d effect size for assessing the effect of intervention was
160
+ computed as the ratio of the difference between means of ex-
161
+ periment and control groups to the pooled standard deviation.
162
+ Results
163
+ The STAI score before and after the Anapanasati intervention
164
+ was analysed for both Experiment and Control groups using
165
+ Paired Samples T test as shown in Table 1. The experiment
166
+ group has shown significant reduction in the STAI (P < 0.05)
167
+ score after the intervention whereas STAI score has increased
168
+ in the control group. The pre and post STAI scores across age
169
+ groups of Experiment and Control groups were tabulated in
170
+ Table 2. The Cohen’s d effect size was computed and it has
171
+ taken a value of 1.52.
172
+ Table 1: Paired Samples T Test
173
+ Group N
174
+ STAI (Pre)
175
+ STAI (Post)
176
+ P Value
177
+ CI
178
+ Experiment
179
+ 5648.32 ± 6.57
180
+ 45.73 ± 3.28
181
+ 0.01*
182
+ [0.59, 4.58]
183
+ Control
184
+ 5650.45 ± 4.55
185
+ 51.93 ± 4.76
186
+ 0.01*
187
+ [–2.61, –0.353]
188
+ Data is represented as mean ± standard deviation
189
+ STAI: State Trait Anxiety Inventory
190
+ N: Number of Participants
191
+ Pre: Pre data taken before intervention
192
+ Post: Post data taken after intervention
193
+ *P Value significance at 0.05 level
194
+ CI: 95% Confidence Interval of the difference between pre and post BDI scores
195
+ ANNALS OF NEUROSCIENCES  VOLUME 26  NUMBER 1  JANUARY 2019
196
+ www.annalsofneurosciences.org
197
+ 34
198
+ ANNALS
199
+ RES ARTICLE
200
+ Fig. 1:  Comparing Pre and Post STAI Score across three different
201
+ ranges of score in experiment group.
202
+ Group 1: Participants in experiment group with STAI score less than 40
203
+ Group 2: Participants in experiment group with STAI score between 40
204
+
205
+ and 60
206
+ Group 3: Participants in experiment group with STAI score greater
207
+
208
+ than 60
209
+ Table 2: STAI vs Age in Experiment and Control Groups
210
+ Age Group
211
+ Experiment Group
212
+ Control Group
213
+ STAI Pre
214
+ STAI Post
215
+ P Value
216
+ STAI Pre
217
+ STAI post
218
+ P Value
219
+ <= 40
220
+ 44.0 ± 5.03
221
+ 45.14 ± 3.44
222
+ 0.625
223
+ 50.44 ± 4.22
224
+ 52.22 ± 4.43
225
+ 0.03*
226
+ > 40
227
+ 49.44 ± 6.56
228
+ 45.85 ± 2.75
229
+ 0.004*
230
+ 49.44 ± 5.09
231
+ 51.69 ± 6.03
232
+ 0.17
233
+ Data is represented as mean ± standard deviation
234
+ STAI: State Trait Anxiety Inventory Score
235
+ Pre: STAI score before intervention
236
+ Post: STAI score after intervention
237
+ *P Value significance at 0.05 level
238
+ results of the previous studies. The role of yoga in improving
239
+ the quality of life which gets influenced by negative emotions
240
+ and aggression is well understood [25–27] and meditation
241
+ being a limb of Yoga [9] has a significant role in improving the
242
+ quality of life and reducing the anxiety and depression levels.
243
+ The results of our study highlight the importance of medita-
244
+ tion in reducing the anxiety levels as measured by STAI.
245
+ We further analysed the data and observed that after
246
+ practicing Anapanasati meditation for six months the anxi-
247
+ ety has come down in older subjects with age greater than 40
248
+ whereas the anxiety has increased in younger subjects with age
249
+ less than 40. The reason for such an increase in STAI score in
250
+ younger adults may due to lower sample size of younger group
251
+ which has only 7 subjects and warrants further focussed study
252
+ to establish the effectiveness across different age groups. The
253
+ STAI score was lying between 40 to 60 for majority of the par-
254
+ ticipants in both experiment and control groups. In experiment
255
+ group there were only 5 subjects with less than 40 and only
256
+ one subject with score greater than 60 (Fig 1). The STAI score
257
+ has moderately increased in the subjects who were having the
258
+ score less than 40 after intervention and the reason for such an
259
+ increase need to be understood from various factors such as
260
+ physiological, psychological and socio-economic status of the
261
+ individuals and not considering them in our study is a limita-
262
+ tion. The results of the current study confirm the effectiveness
263
+ of Anapanasati meditation but warrants further in depth study
264
+ to understand the effectiveness when anxiety is comorbid with
265
+ other physiological and psychological disorders.
266
+ This is the first time the effect of Anapanasati meditation
267
+ on anxiety was studied and the results were promising and
268
+ paved the way for in-depth studies to unravel the hidden po-
269
+ tential of the meditation. The study has been done with equal
270
+ sample size in both the groups and the baseline score of both
271
+ the groups is nearly same which is the strength of the study.
272
+ Despite the promising results there are many limitations in the
273
+ study which need to be addressed in future studies. The study
274
+ was done with moderately smaller sample size and there is a
275
+ need to do the study with larger sample size covering all age
276
+ groups. The STAI score was not covering the low, moderate
277
+ and high levels as majority of the participants were in moder-
278
+ ate group. There is a need to study the effect of Anapanasati
279
+ meditation with larger sample size covering the range of STAI
280
+ score such that the effect of meditation at various levels of
281
+ anxiety can be studied. The results confirm that Anapanasati
282
+
283
+ Discussion
284
+ The present study focused on investigating the effect of Anap-
285
+ anasati meditation on the individuals with moderate anxiety
286
+ and STAI scale was used for assessing the anxiety level. STAI
287
+ scale is considered to be one of the best measures and litera-
288
+ ture review indicates that the number of citations with STAI
289
+ are more compared to other measures and originally the scale
290
+ was designed for normal population which was extended lat-
291
+ er for clinical studies [1]. In the present study at the end of the
292
+ six month period we have observed that the anxiety levels of
293
+ the subjects in Experiment group have reduced significantly
294
+ whereas in Control group the anxiety levels have moderate-
295
+ ly increased. The previous studies on Anapansati meditation
296
+ have shown that the stress parameter activation coefficient
297
+ and health parameter integral area as measured by Electro
298
+ Photonic Imaging (EPI) technique have reduced significant-
299
+ ly with meditation [19] and also Anapanasati meditation was
300
+ closely associated to attention task performance [20]. The
301
+ earlier studies on mindfulness meditation established the
302
+ effectiveness of meditation in reducing the anxiety and de-
303
+ pression levels [13,21–24] and our results with Anapanasati
304
+ meditation, a form of mindfulness meditation, match with the
305
+ www.annalsofneurosciences.org
306
+ ANNALS OF NEUROSCIENCES  VOLUME 26  NUMBER 1  JANUARY 2019
307
+ 35
308
+ ANNALS
309
+ S
310
+ RES ARTICLE
311
+ meditation has reduced the STAI scores when compared to
312
+ control group who were not performing any meditation but
313
+ due to the lack of physiological, psychological and socio-eco-
314
+ nomic status of the participants it is difficult to understand
315
+ the reasons why the anxiety levels have increased in the
316
+ participants of control group. We have not measured gen-
317
+ eral anthropometric and clinical parameters such as height,
318
+ weight, blood pressure, pulse rate etc. and hence study lacks
319
+ the strength in assessing the therapeutic benefits of the in-
320
+ tervention.
321
+ Conclusion
322
+ In conclusion, the participants of Anapanasati meditation
323
+ have shown significant reduction in the anxiety score mea-
324
+ sured with State Trait Anxiety Inventory. There was no such
325
+ significant change in the STAI score of control group. Anap-
326
+ anasati meditation is a form of mindfulness meditation and
327
+ the results emphasize the need for its regular practice in
328
+
329
+ improving the quality of life.
330
+ Acknowledgement
331
+ I am thankful to all who willingly participated in this study
332
+ and I sincerely acknowledge their whole-hearted participa-
333
+ tion. I thank all those who helped me to complete this study
334
+ and arrive at the results.
335
+ Authorship contribution
336
+ This article complies with International Committee of Medical
337
+ Journal editor’s uniform requirements for manuscript.
338
+ Ethical statement
339
+ Signed informed consent was obtained from all the subjects.
340
+ The institutional ethical committee of the parent institution
341
+ had cleared the project proposal with ethical approval num-
342
+ ber IEC/Vyasa/24/2014.
343
+ Source of funding
344
+ None
345
+ Conflict of interest
346
+ None
347
+ Received Date : 06-08-18; Revised Date : 19-10-18;
348
+ Accepted Date : 19-11-18
349
+ References
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subfolder_0/Effect of short duration integrated classroom yoga module on physical, cognitive, emotional and personality measures of school children.txt ADDED
@@ -0,0 +1,1149 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ 100
2
+ © 2021 Yoga Mīmāṃsā | Published by Wolters Kluwer - Medknow
3
+ Original Article
4
+ Effect of short duration integrated classroom yoga
5
+ module on physical, cognitive, emotional and
6
+ personality measures of school children
7
+ Atul Sinha, Sony Kumari
8
+ Department of Yoga and Humanities, Swami Vivekananda Yoga Anusandhana Samsthana (Deemed to be University), Bengaluru,
9
+ Karnataka, India
10
+ INTRODUCTION
11
+ UNICEF estimated that an alarming 10%–20% of the world’s
12
+ 2.2 billion child and adolescent population was afflicted by mental
13
+ health problems (Kieling et al., 2011). The National Mental Health
14
+ Survey (2016) in India found that 7.3% of adolescents suffered at
15
+ least one condition of mental morbidity (Gururaj et al, 2016). In the
16
+ USA 7.5% of adolescents met the DSM-IV criteria for one or more
17
+ mental health conditions (Kessler & Wang, 2008). These findings
18
+ suggested that young people needed social-emotional learning
19
+ (Butzer, Bury, Telles, & Khalsa, 2016). Further, the Association
20
+ for Supervision and Curriculum Development’s Commission on
21
+ the Whole Child (ASCD), felt the need to go beyond cognitive
22
+ development and educate the whole child defined as intellectually
23
+ Context: Despite evidence of therapeutic benefits of yoga on school children, many schools do not include yoga
24
+ in their daily schedule. Reasons cited are lack of time and resources. An efficacious short duration integrated
25
+ classroom yoga module (ICYM) can overcome such problems.
26
+ Aim: This study aimed to test the effect of such a yoga module on physical fitness, cognitive performance, emotional
27
+ wellbeing, and personality characteristic of school children.
28
+ Methods: The design was a randomized controlled trial with participants sourced from grades 7–10. The intervention
29
+ period was 2 months. The primary outcome measures were 4 tests from the EUROFIT physical fitness testing
30
+ battery, Stroop color-word naming task, Rosenberg self-esteem scale, WHO-5 wellbeing index, and Sushruta Child
31
+ Personality Inventory. Statistical analysis used a repeated measure analysis of variance. Secondary outcome
32
+ measure was a qualitative assessment.
33
+ Results: The yoga group showed significant differences compared to the control group in 2 of 4 physical fitness
34
+ variables, Stroop color-word naming task, and in the WHO-5 wellbeing index.
35
+ Conclusion: ICYM is a validated, feasible, and efficacious school-based short-duration integrated yoga module.
36
+ It can be considered for incorporation into the daily school schedule.
37
+ Key Words: Classroom yoga, cognitive performance, emotional wellbeing, physical fitness, short-duration yoga,
38
+ yoga in schools
39
+ Address for correspondence:
40
+ Mr. Atul Sinha, 103 Regent Place, 28/2 Thubrahalli, Whitefield Road, Bengaluru - 560 066, Karnataka, India.
41
+ E-mail: [email protected]
42
+ Submitted: 04-Jun-2021 Revised: 23-Oct-2021 Accepted: 26-Oct-2021 Published: 22-Dec-2021
43
+ How to cite this article: Sinha A, Kumari S. Effect of short duration
44
+ integrated classroom yoga module on physical, cognitive, emotional
45
+ and personality measures of school children. Yoga Mimamsa
46
+ 2021;53:100-8.
47
+ This is an open access journal, and articles are distributed under the terms of the
48
+ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which
49
+ allows others to remix, tweak, and build upon the work non-commercially, as long as
50
+ appropriate credit is given and the new creations are licensed under the identical terms.
51
+ For reprints contact: [email protected]
52
+ Access this article online
53
+ Quick Response Code:
54
+ Website:
55
+ www.ym-kdham.in
56
+ DOI:
57
+ 10.4103/ym.ym_55_21
58
+ Abstract
59
+ [Downloaded free from http://www.ym-kdham.in on Monday, June 6, 2022, IP: 136.232.192.146]
60
+ Sinha and Kumari: Effect of ICYM on wellbeing of school children
61
+ Yoga Mīmāṃsā | Volume 53 | Issue 2 | July-December 2021
62
+ 101
63
+ active, physically, verbally, socially, and academically competent;
64
+ empathetic, kind, caring and fair; creative and curious; disciplined,
65
+ self-directed and goal-oriented; free, critical thinker, confident and
66
+ cared for and valued (Hyde, 2012).
67
+ Growing modern research evidence suggests that yoga is
68
+ efficacious in developing the whole child. Traditional texts of
69
+ yoga too articulate a vision of education as laying the foundations
70
+ of character and personality through self-transformation
71
+ (Niranjanananda, 2009).
72
+ Many school-based studies have found that yoga was beneficial
73
+ for children. A meta-analysis by Galantino, Galbavy, & Quinn
74
+ (2008) found that yoga positively impacted physiological health
75
+ variables such as reaction time, motor speed, musculoskeletal
76
+ strength, and cardio-pulmonary measures. Another meta-analysis
77
+ by Zenner, Herrnleben-Kurz, & Walach (2014) showed that
78
+ cognitive performance, stress levels, resilience, and emotional
79
+ balance improved with mindfulness interventions. Serwacki
80
+ & Cook-Cottone (2012) reviewed 12 studies and reported that
81
+ yoga positively impacted cognitive efficiency, attentional control,
82
+ emotional balance, anxiety, reactivity, and negative behavior. A
83
+ study found that sattva (controlled illuminative energy) increased
84
+ while rajas (uncontrolled active energy) and tamas (uncontrolled
85
+ inert energy) reduced with yoga intervention, resulting in a tranquil
86
+ personality (Patil & Nagendra, 2014).
87
+ Many Indian studies have reported the beneficial effects of yoga
88
+ on physical, cognitive, and emotional measures of school children.
89
+ It had a beneficial effect on physical fitness (Purohit, Pradhan, &
90
+ Nagendra, 2016). It impacted cardiopulmonary health positively
91
+ (Shivakumar, Suthakar, & Urs, 2016). Yoga was significantly
92
+ associated with memory, attention, and executive function (Chaya,
93
+ Nagendra, Selvam, Kurpad, & Srinivasan, 2012; Verma, Shete,
94
+ & Singh Thakur, 2014). It improved self-esteem, self-adjustment,
95
+ and self-efficacy (Bhardwaj & Agrawal, 2013; Bhardwaj &
96
+ Bhardwaj, 2015; Das, Deepeshwar, Subramanya, & Manjunath,
97
+ 2016). Yoga reduced anxiety (Gusain & Dauneria, 2016).
98
+ Despite awareness of the benefits of yoga, most schools either
99
+ have not incorporated yoga in the curriculum or have done so sub-
100
+ optimally, usually one session a week. The reasons cited are paucity
101
+ of time and resources such as yoga rooms and yoga instructors. We
102
+ argue that unless a solution is found to overcome these problems it
103
+ will be difficult to incorporate yoga into the daily school schedule.
104
+ We hypothesize that a short-duration integrated classroom yoga
105
+ module (ICYM) instructed by the class teacher will have a positive
106
+ impact on physical fitness, cognitive performance, emotional
107
+ wellbeing, and personality characteristics. Such a module can
108
+ overcome the cited problems and allow for yoga’s inclusion in the
109
+ daily school schedule. Traditional texts too support the practice
110
+ of yoga in the classroom (Satyananda, 1990, p 50-56, 110-132).
111
+ Studies conducted so far on classroom yoga suffer from
112
+ methodological infirmities, small sample sizes, and non-standard
113
+ interventions. Studies by Butzer et al. (2015), Chen & Pauwels
114
+ (2014), and Lawson, Lisa Cox, & Blackwell (2012), used once a
115
+ week intervention, yoga-based activities, and a modified form of
116
+ yoga respectively in uncontrolled pilot studies with small sample
117
+ sizes. These studies found directional improvements in stress
118
+ reduction, emotional wellbeing, and behavior. A study by Telles,
119
+ Gupta, Gandharva, Vishwakarma, Kala, & Balkrishna (2019)
120
+ used an 18-min pranayama intervention for 3 days and reported
121
+ a positive impact on attention and anxiety. It is evident that the
122
+ current research on short-duration classroom yoga is clearly
123
+ inadequate and there is a need for a methodologically sound study.
124
+ The present study aimed to evaluate the effect of a previously
125
+ validated ICYM (Sinha, Kumari, & Ganguly, 2021), on physical,
126
+ cognitive, emotional, and personality measures. These measures
127
+ were chosen since they formed the major components that defined
128
+ the whole child. Specific tests used were (i) EUROFIT physical
129
+ fitness testing battery since it was a comprehensive field test,
130
+ (ii) Stroop color-word naming task since it was a reliable test of
131
+ neurophysiological function, (iii) Rosenberg self-esteem scale
132
+ since self-esteem is associated with other mal-adaptations, (iv)
133
+ WHO-5 wellbeing index since it was a key desired outcome in
134
+ social-emotional learning, and (v) Sushruta Child Personality
135
+ Inventory (SCPI) measuring gunas, since it indicated a tranquil
136
+ personality.
137
+ METHODS
138
+ Participants
139
+ The study sourced participants from two urban campuses of
140
+ Samsidh Mount Litera Zee School, Bengaluru, INDIA. One
141
+ campus provided the yoga group and the other the control group.
142
+ All students from Grades 7–10 who met the inclusion criteria
143
+ participated in the study.
144
+ The sample size for physical fitness tests was restricted to 98
145
+ (yoga = 48, control = 50) because the administration of the tests
146
+ required significant time and resources. Randomization was
147
+ achieved by setting quotas for each grade and drawing from
148
+ paper slips. For the cognitive performance test the sample size
149
+ was 253 (yoga = 143, control = 110). For the emotional wellbeing
150
+ tests the sample size was 244 (yoga = 137, control = 107). For
151
+ the personality characteristic test the sample size was 254 (yoga
152
+ = 148, control = 106). Randomization was achieved since both
153
+ control and intervention groups were drawn from the same grades
154
+ of the two campuses. However, drawing the control group from
155
+ one campus and the experimental group from another campus
156
+ resulted in unequal randomization. The sample sizes for cognitive
157
+ performance, emotional wellbeing and personality characteristic
158
+ tests varied marginally due to nonavailability of students on
159
+ account of absenteeism or participation in other activities on
160
+ the days the tests were administered. The detailed participant
161
+ characteristics are given in Table 1.
162
+ The inclusion criteria were (i) participants from Grades 7–10,
163
+ (ii) of both genders. The exclusion criteria were (i) major
164
+ illness or surgery in the last two months, (ii) any mental health
165
+ [Downloaded free from http://www.ym-kdham.in on Monday, June 6, 2022, IP: 136.232.192.146]
166
+ Sinha and Kumari: Effect of ICYM on wellbeing of school children
167
+ 102
168
+ Yoga Mīmāṃsā | Volume 53 | Issue 2 | July-December 2021
169
+ issue, (iii) any condition contraindicating physical activity.
170
+ A signed informed consent was obtained from the school
171
+ principal (dated July 10, 20 19). The study was approved by the
172
+ Institutional Ethics Committee of S-VYASA University (RES/
173
+ IEC-SVYASA/145/2019).
174
+ Design
175
+ The design of the study was a randomized controlled trial with
176
+ pre-post assessments. The intervention period was 2 months with
177
+ 5 days a week of yoga practice. The study was conducted in July-
178
+ September 2019. The design profile is given in Figure 1.
179
+ Yoga intervention
180
+ The intervention used was the 12-min ICYM. The module was
181
+ systematically developed based on literature review, expert-
182
+ validated and efficacy confirmed in a pilot study (Sinha, Kumari
183
+ & Ganguly, 2021). Class teachers were given systematic training
184
+ to conduct the sessions. The detailed module is shown in Table 2.
185
+ Assessment
186
+ The primary outcome measures comprised (i) 4 tests from
187
+ the EUROFIT physical fitness testing battery (Kemper & Van
188
+ Mechelen, 1996), (ii) Stroop color-word naming task (Jensen &
189
+ Rohwer Jr., 1966), (iii) Rosenberg self-esteem scale (Rosenberg,
190
+ 1965), (iv) WHO-5 wellbeing index (Topp, Østergaard,
191
+ Søndergaard, & Bech, 2015) and (vi) SCPI (Suchitra & Nagendra,
192
+ 2013). The secondary outcome measure was a qualitative
193
+ assessment of the experience, benefits, and feasibility.
194
+ EUROFIT fitness testing battery
195
+ The EUROFIT fitness testing battery is a field test. Components of
196
+ fitness were identified by factor analysis ensuring test reliability.
197
+ Despite noncomparability with isometric tests, the coefficient of
198
+ correlation nevertheless ranged from 0.43 to 0.82, where a score
199
+ of .60 is considered good validity. Many Indian studies have
200
+ used this test (Telles, Singh, Bhardwaj, Kumar, & Balkrishna,
201
+ 2013; Karkera, Swaminathan, Pais, Vishal, & Rai, 2014; Purohit,
202
+ et al., 2016).
203
+ Flamingo balance test
204
+ Participants balanced on a narrow wooden bar on one leg. The
205
+ number of falls in 60 s was recorded.
206
+ Sit and reach flexibility test
207
+ Participants sat on the floor with both legs stretched and touching
208
+ the base of a measuring table. They stretched fully and the
209
+ distance stretched was recorded from the measuring scale on
210
+ the tabletop.
211
+ Table 1: Age and gender of participants
212
+ T
213
+ otal
214
+ Yoga group
215
+ Control group
216
+ EUROFIT physical fitness tests
217
+ Sample size
218
+ 98
219
+ 48
220
+ 50
221
+ Age (years)
222
+ 13.46 (1.105)
223
+ 13.65 (1.021)
224
+ 13.28 (1.161)
225
+ Age range
226
+ 11-16
227
+ 12-16
228
+ 11-16
229
+ Gender ratio (B:G)
230
+ 49:49
231
+ 23:25
232
+ 26:24
233
+ Stroop colour‑word task
234
+ Sample size
235
+ 253
236
+ 143
237
+ 110
238
+ Age (years)
239
+ 13.15 (1.195)
240
+ 13.42 (1.128)
241
+ 12.79 (1.189)
242
+ Age range
243
+ 11-16
244
+ 11-16
245
+ 11-15
246
+ Gender ratio (B:G)
247
+ 127:126
248
+ 70:73
249
+ 57:53
250
+ Rosenberg self‑esteem scale and WHO‑5 well‑being index
251
+ Sample size
252
+ 244
253
+ 137
254
+ 107
255
+ Age (years)
256
+ 13.06 (1.243)
257
+ 13.34 (1.202)
258
+ 12.70 (1.207)
259
+ Age range
260
+ 11-16
261
+ 11-16
262
+ 11-15
263
+ Gender ratio (B:G)
264
+ 126:118
265
+ 75:73
266
+ 54:52
267
+ SCPI
268
+ Sample size
269
+ 254
270
+ 148
271
+ 106
272
+ Age (years)
273
+ 13.16 (1.215)
274
+ 13.45 (1.139)
275
+ 12.75 (1.210)
276
+ Age range
277
+ 11-16
278
+ 11-16
279
+ 11-15
280
+ Gender ratio (B:G)
281
+ 129:125
282
+ 75:73
283
+ 54:52
284
+ Age (years), values are group means (SD). SD, Standard deviation; SCPI, Sushruta Child Personality Inventory
285
+ Figure 1: Design profile
286
+ [Downloaded free from http://www.ym-kdham.in on Monday, June 6, 2022, IP: 136.232.192.146]
287
+ Sinha and Kumari: Effect of ICYM on wellbeing of school children
288
+ Yoga Mīmāṃsā | Volume 53 | Issue 2 | July-December 2021
289
+ 103
290
+ Sit-ups trunk strength
291
+ Participants were required to lie on their back with knees bent,
292
+ hands behind their heads, and perform sit ups. The number of
293
+ sit-ups in 30 s was recorded.
294
+ 10 m × 5 m shuttle run agility test
295
+ Cones were kept at 10 m distance. The participants ran to the cone
296
+ and back five times. The timing of the run was recorded.
297
+ Stroop color-word naming task
298
+ The Stroop color-word task measures the participant’s control
299
+ over neuropsychological functions involved in color, word, and
300
+ an interference naming response. The reliabilities of the basic
301
+ scores are high ranging from 0.71 to 0.88. The scale has been
302
+ used extensively in Indian studies (Prakash Dubey, Abhishek,
303
+ Gupta, Rastogi, & Siddiqui, 2010; Telles et al., 2013; (Purohit &
304
+ Pradhan, 2017); Vanitha, Suresh, Chandrasekar, & Punita, 2017;
305
+ Suresh, Jagadisan, Kandasamy, & Senthilkumar, 2018).
306
+ The test consists of three pages. The first page tests how fast the
307
+ participant can read out words. The second page tests how fast the
308
+ participant can call out colors. The third page tests the speed with
309
+ which the participant can name the color of the ink and disregard
310
+ the word printed in that ink-color. The correct number of words,
311
+ colors, and ink-colors called in 45 seconds is recorded.
312
+ Rosenberg self-esteem scale
313
+ The Rosenberg self-esteem scale is a self-report scale that
314
+ measures global self-esteem. The scale demonstrates a coefficient
315
+ of reproducibility of 0.92 and test-retest reliability of 0.85 which
316
+ are considered excellent. The scale has been used extensively in
317
+ Indian studies (Schmitt & Allik, 2005; Sethi, Nagendra, & Ganpat,
318
+ 2013; Jhambh, Arun, & Garg, 2014; Pal, Sharan, & Chadda, 2017;
319
+ Ramanathan, Bhavanani, & Trakroo, 2017).
320
+ WHO-5 wellbeing index
321
+ The WHO-5 wellbeing index is a self-report scale. It has 5 items
322
+ measuring emotional wellbeing. Experts have given this scale
323
+ a high rating on clinimetric validity. Predictive validity too is
324
+ high. Many Indian studies have used this scale (Chaturvedula &
325
+ Joseph, 2007; Agger, Raghuvanshi, Shabana, Polatin, & Laursen,
326
+ 2009; Puri, Sapra, & Jain, 2013; Firdaus, 2017; (Sinha, Kumari
327
+ & Ganguly 2021).
328
+ Sushruta Child Personality Inventory
329
+ The SCPI is a self-report scale measuring personality characteristics.
330
+ The scale is based on the concept that the mind is always in a
331
+ dynamic equilibrium between three types of energies called gunas
332
+ namely sattva (controlled illuminative energy), rajas (uncontrolled
333
+ active energy) and tamas (uncontrolled inert energy). Wellbeing is
334
+ disturbed when rajas and tamas dominate (Deshpande, Nagendra
335
+ & Raghuram, 2008). The scale has a Cronbach alpha score of over
336
+ 0.60 making it reliable. Validity was ensured by selecting items
337
+ which were supported by factor analysis. Patil & Nagendra (2014)
338
+ have used this scale in an Indian study.
339
+ Qualitative assessment
340
+ The qualitative assessment aimed to get insights into (i) the
341
+ Table 2: Integrated classroom yoga module: Set 1 and Set 2 practiced on alternate days
342
+ Set 1
343
+ Set 2
344
+ Yoga practice
345
+ Time
346
+ (min)
347
+ Description
348
+ Yoga practice
349
+ Time
350
+ (min)
351
+ Description
352
+ Dhyana (meditative
353
+ silence)
354
+ 1
355
+ Sit straight with eyes closed.
356
+ Attention on breathing. Watch your
357
+ thoughts flowing
358
+ Dhyana (meditative
359
+ silence)
360
+ 1
361
+ Sit straight with eyes closed.
362
+ Attention on breathing. Watch
363
+ your thoughts flowing
364
+ Asanas
365
+ Asanas
366
+ Katichakrasana
367
+ 1
368
+ 20 rounds
369
+ Ardhakatichakrasana
370
+ 1
371
+ Hold for 7 counts on each side
372
+ Hastauthanasana/
373
+ Padahastasana
374
+ 1
375
+ 3 rounds backward‑forward
376
+ bending. On 4th round hold for 7
377
+ counts on backward bend and then
378
+ on forward bend
379
+ Ardhachakrasana/
380
+ Padahastasana
381
+ 1
382
+ 3 rounds of backward‑forward
383
+ bending. On 4th round hold for 7
384
+ counts on back bend and then on
385
+ forward bend
386
+ Tadasana
387
+ 1
388
+ 3 rounds of up and down followed
389
+ by 1 round of holding for 10 counts
390
+ Gaumukhasana
391
+ (standing)
392
+ 1
393
+ Hold on each side to the count
394
+ of 10
395
+ Vrikshasana
396
+ 1
397
+ Hold on each side for 10 counts
398
+ Garudasana
399
+ 1
400
+ Hold on each side for 10 counts
401
+ Pranayama
402
+ Pranayama
403
+ Yogic breathing
404
+ (abdominal)
405
+ 1
406
+ 10 rounds
407
+ Yogic breathing
408
+ (abdominal)
409
+ 1
410
+ 10 rounds
411
+ NadiShudhi
412
+ 2
413
+ 6 rounds
414
+ NadiShudhi
415
+ 2
416
+ 6 rounds
417
+ Bhramari
418
+ 1
419
+ 6 rounds
420
+ Bhramari
421
+ 1
422
+ 6 rounds
423
+ OM chanting
424
+ 1
425
+ 6 rounds
426
+ OM chanting
427
+ 1
428
+ 6 rounds
429
+ Dhyana
430
+ 1
431
+ Mentally recap the practices.
432
+ Attention on breathing
433
+ Dhyana
434
+ 1
435
+ Mentally recap the practices.
436
+ Attention on breathing
437
+ Affirmation
438
+ Affirmation
439
+ I am a powerful soul
440
+ 0.5
441
+ 3 rounds
442
+ I am a loveful soul
443
+ 0.5
444
+ 3 rounds
445
+ Closing
446
+ 0.5
447
+ Rub palms, massage eyes, face,
448
+ neck. With a few blinks open eyes
449
+ Closing
450
+ 0.5
451
+ Rub palms, massage eyes, face,
452
+ neck. With a few blinks open eyes
453
+ Total timing
454
+ 12
455
+ Total timing
456
+ 12
457
+ [Downloaded free from http://www.ym-kdham.in on Monday, June 6, 2022, IP: 136.232.192.146]
458
+ Sinha and Kumari: Effect of ICYM on wellbeing of school children
459
+ 104
460
+ Yoga Mīmāṃsā | Volume 53 | Issue 2 | July-December 2021
461
+ experience, (ii) perceived benefits, (iii) drivers and barriers to
462
+ continued practice. The methodology used was focus group
463
+ discussions conducted by a professional qualitative researcher.
464
+ Two groups of randomly selected (drawing from paper slips)
465
+ students and one group of class teachers participated in the study.
466
+ Data analysis
467
+ At the first level, pre-intervention and postintervention means of
468
+ the yoga group and control group were compared independently
469
+ using paired sample t-test. At the next level repeated measure
470
+ analysis of variance (RM-ANOVA) was carried out for each
471
+ variable. The within-subjects factor was time (preintervention and
472
+ post-intervention). The between-subjects factor was Groups (yoga
473
+ and control). The alpha level was set at p < 0.05. The assumptions
474
+ of sphericity measured by Mauchly’s test and homogeneity of
475
+ variance measured by Levene’s test were satisfied. The raw data
476
+ were analyzed using Statistical Package for Social Science (SPSS)
477
+ version 26, IBM, Armonk, NY, USA.
478
+ RESULTS
479
+ EUROFIT physical fitness testing battery
480
+ In the yoga group, the paired sample t-test was associated with
481
+ statistically significant pre-post differences in all the four tests
482
+ (p < 0.001). The effect size for flexibility (d = 0.78) and strength
483
+ tests (d = 0.91) were large. For balance (d = 0.53) and agility tests
484
+ (d = 0.53), they were medium. In the control group the difference
485
+ in means were statistically significant in balance (p < 0.001) and
486
+ flexibility tests (p < 0.007) only. The effect size for flexibility test
487
+ was small (d = 0.40) and for balance test medium [d = 0.56; Table 3].
488
+ In the RM-ANOVA test, there was sufficient evidence to reject
489
+ the intervention effect null hypothesis for sit and reach flexibility
490
+ test (p < 0.001) and sit ups trunk strength test (p < 0.001). The
491
+ effect size for flexibility test was nearly large (ƞ2
492
+ p = 0.243) and
493
+ for strength test medium (ƞ2
494
+ p = 0.185). There was insufficient
495
+ evidence to reject the intervention effect null hypotheses for
496
+ Flamingo balance test (p < 0.465) and 10 m × 5 m shuttle run
497
+ agility test [p < 0.133; Table 4].
498
+ Stroop color-word naming task
499
+ In the yoga group, the paired sample t-test was associated with
500
+ statistically significant pre-post differences in all three scores
501
+ (p < 0.001). The effect size for word (d = 0.62) and color scores
502
+ (d = 0.63) were medium. For color-word score, it was large
503
+ (d = 0.99). In the control group, the difference in means was
504
+ statistically significant in all the three scores (p < 0.001). The effect
505
+ size was small for word (d = 0.35) and color scores (d = 0.47). It
506
+ was medium for color-word score [d = 0.55; Table 3].
507
+ In the RM-ANOVA test, there was sufficient evidence to reject
508
+ the intervention effect null hypothesis for Stroop color-word
509
+ score (p < 0.001). The effect size was small (ƞ2
510
+ p = 0.06). There
511
+ was insufficient evidence to reject the intervention effect null
512
+ hypotheses for word (p < 0.07) and color scores [p < 0.074;
513
+ Table 4].
514
+ Rosenberg self-esteem scale
515
+ In both the yoga and control groups, the paired sample
516
+ t-test was associated with statistically insignificant pre-post
517
+ differences [p > 0.05; Table 3].
518
+ In the RM-ANOVA test, there was insufficient evidence to reject
519
+ the intervention effect null hypothesis [p < 0.057; Table 4].
520
+ WHO-5 well-being index
521
+ In the yoga group, the paired sample t-test was associated with
522
+ statistically significant pre-post difference (p < 0.001) with small
523
+ effect size (d = 0.33). In the control group, the difference was
524
+ statistically insignificant [p < 0.097; Table 3].
525
+ In the RM-ANOVA test, there was sufficient evidence to reject
526
+ the intervention effect null hypothesis (p < 0.001). The effect size
527
+ was small [ƞ2
528
+ p = 0.055; Table 4].
529
+ Sushruta Child Personality Inventory
530
+ In the yoga group, the paired sample t-test was associated with
531
+ statistically significant pre-post differences in rajas (p < 0.011)
532
+ and tamas (p < 0.004) scores with small effect sizes (d = 0.21;
533
+ d = 0.24) and insignificant difference in sattva score (p < 0.516).
534
+ In the control group, the pre-post difference was statistically
535
+ significant in sattva (p < 0.044) and tamas scores (p < 0.020)
536
+ with small effect sizes (d = 0.20; d = 0.23). It was statistically
537
+ insignificant for rajas score [p < 0.647; Table 3].
538
+ In the RM-ANOVA test, there was insufficient evidence to
539
+ reject the intervention effect null hypotheses for all three scores
540
+ [p > 0.05; Table 4].
541
+ Qualitative assessment
542
+ The variety in the module due to a mix of postures, breathing,
543
+ and meditation made the practice enjoyable. Students reported
544
+ improvements in fitness, stamina, and increased participation
545
+ in sports. Both students and teachers were most enthusiastic
546
+ while reporting cognitive benefits. Students reported better
547
+ concentration, grasp of concepts, and recall of lessons. Teachers
548
+ felt that the students had developed a more positive attitude
549
+ towards academics. Students credited the meditative practice
550
+ with instilling calmness, increased patience, and reduced stress.
551
+ Teachers felt that discipline had improved. Students reported that
552
+ they felt friendlier. Teachers noticed a greater social cohesion.
553
+ Both students and teachers felt that the short duration of the
554
+ practice, its convenience, and benefits made the ICYM acceptable
555
+ for continued practice.
556
+ DISCUSSION
557
+ The present study hypothesized that ICYM will impact fitness,
558
+ cognitive performance, emotional wellbeing, and personality
559
+ characteristic of school children. In the study, the yoga group
560
+ showed significant differences compared to the control group in
561
+ 2 out of 4 EUROFIT tests, in the Stroop color-word score and
562
+ the WHO-5 emotional wellbeing index. The test of significance
563
+ [Downloaded free from http://www.ym-kdham.in on Monday, June 6, 2022, IP: 136.232.192.146]
564
+ Sinha and Kumari: Effect of ICYM on wellbeing of school children
565
+ Yoga Mīmāṃsā | Volume 53 | Issue 2 | July-December 2021
566
+ 105
567
+ (p-value) tells us that there is a statistical difference between the
568
+ means of the experimental group compared to the control group.
569
+ However, it does not tell us the extent of the difference. This is
570
+ measured by the effect size. It is a measure of how much variation
571
+ Table 4: Repeated measure analysis of variance table for variables of EUROFIT physical fitness
572
+ testing battery, STROOP colour‑word naming Task, Rosenberg Self‑Esteem Scale, WHO‑5 emotional
573
+ well‑being index, Sushruta Child Personality Inventory
574
+ T
575
+ est
576
+ Factor
577
+ Variable
578
+ F
579
+ df
580
+ Huyhn Feldt Ɛ
581
+ P
582
+ Partial eta squared
583
+ EUROFIT
584
+ Within ‑ subjects
585
+ (time)
586
+ Flamingo balance test
587
+ 28.832
588
+ 1
589
+ 1
590
+ 0.001
591
+ 0.231
592
+ Sit and reach flexibility test
593
+ 1.208
594
+ 1
595
+ 1
596
+ 0.274
597
+ 0.012
598
+ Sit ups trunk strength test
599
+ 7.44
600
+ 1
601
+ 1
602
+ 0.008
603
+ 0.072
604
+ 10×5 m shuttle run agility test
605
+ 11.36
606
+ 1
607
+ 1
608
+ 0.001
609
+ 0.106
610
+ Group × time
611
+ Flamingo balance test
612
+ 0.538
613
+ 1
614
+
615
+ 0.465
616
+ 0.006
617
+ Sit and reach flexibility test
618
+ 30.777
619
+ 1
620
+
621
+ 0.001
622
+ 0.243
623
+ Sit ups trunk strength test
624
+ 21.739
625
+ 1
626
+
627
+ 0.001
628
+ 0.185
629
+ 10×5 m shuttle run agility test
630
+ 2.301
631
+ 1
632
+
633
+ 0.133
634
+ 0.023
635
+ STROOP
636
+ Within ‑ subjects
637
+ (time)
638
+ Word score
639
+ 57.109
640
+ 1
641
+ 1
642
+ 0.001
643
+ 0.185
644
+ Colour score
645
+ 73.985
646
+ 1
647
+ 1
648
+ 0.001
649
+ 0.228
650
+ Colour‑word score
651
+ 149.763
652
+ 1
653
+ 1
654
+ 0.001
655
+ 0.060
656
+ Group × time
657
+ Word score
658
+ 3.304
659
+ 1
660
+
661
+ 0.070
662
+ 0.013
663
+ Colour score
664
+ 3.229
665
+ 1
666
+
667
+ 0.074
668
+ 0.013
669
+ Colour‑word score
670
+ 16.079
671
+ 1
672
+
673
+ 0.001
674
+ 0.060
675
+ Rosenberg/
676
+ WHO‑5
677
+ Within ‑ subjects
678
+ (time)
679
+ Rosenberg self‑esteem scale
680
+ 1.801
681
+ 1
682
+ 1
683
+ 0.181
684
+ 0.007
685
+ WHO‑5 emotional well‑being
686
+ index
687
+ 1.286
688
+ 1
689
+ 1
690
+ 0.258
691
+ 0.005
692
+ Group × time
693
+ Rosenberg self‑esteem scale
694
+ 3.203
695
+ 1
696
+
697
+ 0.057
698
+ 0.013
699
+ WHO‑5 emotional well‑being
700
+ index
701
+ 14.166
702
+ 1
703
+
704
+ 0.001
705
+ 0.055
706
+ SCPI
707
+ Within ‑ subjects
708
+ (time)
709
+ Sattva score
710
+ 3.249
711
+ 1
712
+ 1
713
+ 0.073
714
+ 0.013
715
+ Rajas score
716
+ 4.317
717
+ 1
718
+ 1
719
+ 0.039
720
+ 0.017
721
+ Tamas score
722
+ 13.300
723
+ 1
724
+ 1
725
+ 0.001
726
+ 0.050
727
+ Group × time
728
+ Sattva score
729
+ 0.791
730
+ 1
731
+
732
+ 0.375
733
+ 0.003
734
+ Rajas score
735
+ 2.053
736
+ 1
737
+
738
+ 0.153
739
+ 0.008
740
+ Tamas score
741
+ 0.044
742
+ 1
743
+
744
+ 0.835
745
+ 0.001
746
+ SCPI, Sushruta Child Personality Inventory
747
+ Table 3: Paired sample t-test - Means (Standard Deviation), Effect Size: EUROFIT physical fitness
748
+ testing battery, Stroop color-word naming task, Rosenberg self-esteem scale, WHO-5 emotional well-
749
+ being index, Sushruta child personality inventory
750
+ T
751
+ est
752
+ n
753
+ Yoga
754
+ Control
755
+ Yoga
756
+ Control
757
+ Pre
758
+ Post
759
+ P
760
+ Cohen’s
761
+ d
762
+ Pre
763
+ Post
764
+ P
765
+ Cohen’s
766
+ d
767
+ EUROFIT
768
+ Flamingo
769
+ balance test
770
+ 48
771
+ 50
772
+ 7.50 (6.36)
773
+ 4.75 (4.72)
774
+ 0.001
775
+ 0.53
776
+ 11.98 (7.33)
777
+ 8.36 (7.37)
778
+ 0.001
779
+ 0.56
780
+ Sit and reach
781
+ flexibility test
782
+ 17.98 (6.64)
783
+ 20.94 (7.40)
784
+ 0.001
785
+ 0.78
786
+ 16.44 (5.48)
787
+ 14.46 (6.49)
788
+ 0.007
789
+ 0.40
790
+ Sit ups trunk
791
+ strength test
792
+ 19.29 (4.77)
793
+ 23.19 (4.93)
794
+ 0.001
795
+ 0.91
796
+ 9.82 (6.72)
797
+ 8.80 (6.44)
798
+ 0.233
799
+ 0.17
800
+ 10×5 m shuttle
801
+ run agility test
802
+ 15.77 (1.98)
803
+ 15.13 (1.68)
804
+ 0.001
805
+ 0.53
806
+ 17.51 (2.04)
807
+ 17.26 (2.16)
808
+ 0.218
809
+ 0.18
810
+ Stroop
811
+ Word score
812
+ 143
813
+ 110
814
+ 87.87 (16.79) 93.64 (18.04) 0.001
815
+ 0.62
816
+ 90.64 (14.71) 94.17 (12.99) 0.001
817
+ 0.35
818
+ Color score
819
+ 59.22 (11.78) 65.43 (11.34) 0.001
820
+ 0.63
821
+ 59.95 (11.64) 64.04 (10.80) 0.001
822
+ 0.47
823
+ Color‑word score
824
+ 30.33 (10.04)
825
+ 38.62 (8.48)
826
+ 0.001
827
+ 0.99
828
+ 33.07 (8.49)
829
+ 37.27 (8.96)
830
+ 0.001
831
+ 0.55
832
+ Rosenberg
833
+ Self‑Esteem Scale
834
+ 137
835
+ 107
836
+ 28.55 (3.42)
837
+ 28.66 (3.51)
838
+ 0.702
839
+ 0.03
840
+ 28.66 (4.03)
841
+ 27.90 (4.45)
842
+ 0.068
843
+ 0.18
844
+ WHO‑5 emotional
845
+ well‑being index
846
+ 137
847
+ 107
848
+ 17.21 (4.04)
849
+ 18.57 (3.17)
850
+ 0.001
851
+ 0.33
852
+ 16.39 (4.68)
853
+ 15.66 (4.85)
854
+ 0.097
855
+ 0.16
856
+ SCPI
857
+ Sattva score
858
+ 148
859
+ 106
860
+ 13.62 (2.06)
861
+ 13.74 (2.17)
862
+ 0.516
863
+ 0.05
864
+ 12.75 (2.17)
865
+ 13.10 (2.40)
866
+ 0.044
867
+ 0.20
868
+ Rajas score
869
+ 8.93 (2.22)
870
+ 8.42 (2.64)
871
+ 0.011
872
+ 0.21
873
+ 7.57 (2.31)
874
+ 7.47 (2.06)
875
+ 0.647
876
+ 0.04
877
+ Tamas score
878
+ 6.95 (2.13)
879
+ 6.39 (2.49)
880
+ 0.004
881
+ 0.24
882
+ 6.68 (2.59)
883
+ 6.18 (2.05)
884
+ 0.020
885
+ 0.23
886
+ Pre and post are group means (SD). SD, Standard deviation; SCPI, Sushruta Child Personality Inventory
887
+ [Downloaded free from http://www.ym-kdham.in on Monday, June 6, 2022, IP: 136.232.192.146]
888
+ Sinha and Kumari: Effect of ICYM on wellbeing of school children
889
+ 106
890
+ Yoga Mīmāṃsā | Volume 53 | Issue 2 | July-December 2021
891
+ in the dependent variable is due to the independent variable. In the
892
+ present study, the results showed that the effect size in the fitness
893
+ tests was medium to large while in the cognition and emotional
894
+ wellbeing tests they were small. We argue that small effect sizes in
895
+ some tests should not be dismissed since every little improvement
896
+ in children’s wellbeing is encouraging.
897
+ The qualitative assessment buttressed the benefits shown in
898
+ the quantitative study. Its findings were in consonance with
899
+ previous qualitative research that reported the perceived benefits
900
+ as kinesthetic awareness, improved self-image, stress reduction,
901
+ self-regulation of emotions, and social cohesion (Conboy, Noggle,
902
+ Frey, Kudesia, & Khalsa, 2013).
903
+ We now compare the results of the ICYM with studies that used
904
+ longer-duration yoga modules. A study by Purohit, et al. (2016),
905
+ found significant differences in the yoga group in 9 out of 11
906
+ EUROFIT variables. It can be concluded that the impact of the
907
+ ICYM on physical fitness is somewhat in conformity with a
908
+ longer duration module. A study using the Stroop test (Purohit
909
+ & Pradhan, 2016), reported a significant improvement in the
910
+ yoga group with medium effect size. The ICYM also showed a
911
+ significant improvement albeit with a small effect size. Studies
912
+ using longer duration yoga modules have reported improvements
913
+ in self-esteem, self-efficacy, self-confidence, self-concept, mood
914
+ disturbance, tension-anxiety, negative affects with medium effect
915
+ sizes (Benson et al., 1994; Noggle, Steiner, Minami, & Khalsa,
916
+ 2012; Bhardwaj & Bhardwaj, 2015; Bhardwaj & Agarwal, 2013;
917
+ Das et al., 2016). The ICYM was associated with a significant
918
+ improvement in emotional well-being with a small effect size.
919
+ Since ICYM is classroom yoga module we have compared the
920
+ results with other studies that used classroom yoga interventions.
921
+ An uncontrolled pilot study by Butzer, et al. (2015) reported
922
+ some behavior improvement and stress reduction. Another
923
+ uncontrolled study used a15-min yoga activity as intervention and
924
+ showed directional improvements in mental, social, and physical
925
+ wellbeing (Chen & Pauwels, 2014). A quasi-experimental study
926
+ by Lawson et al. (2012) used a 10-min modified yoga intervention
927
+ and found minimal improvements in fine motor skills and
928
+ academic measures. A study by Telles et al. (2019) used an 18-min
929
+ Pranayama intervention for 3 days and reported improvements
930
+ in attention and anxiety reduction. Though suffering from some
931
+ methodological infirmities like short periods of intervention,
932
+ non-standard modules, and teacher-reported assessments, they all
933
+ point to directional improvements in behavior, stress, emotional
934
+ wellbeing, cognition, and academic measures. The present study
935
+ used a validated classroom yoga module, randomized controlled
936
+ design and longer period of intervention to show improvements
937
+ that were directionally demonstrated by earlier studies.
938
+ The question arises as to why the ICYM positively impacted
939
+ physical, cognitive, and emotional measures. One possible reason
940
+ could be that the module itself had been developed methodically.
941
+ It was an integrated practice incorporating asana (physical
942
+ postures), pranayama (breathing practice), dhyana (meditation),
943
+ and mantra (chanting). The practices were specifically selected
944
+ for their impact on physical wellbeing, mental calmness,
945
+ stress reduction, and impact on concentration. They had been
946
+ sequenced in a manner that the physical postures involved full-
947
+ body movement namely sideways-forward-backward bending,
948
+ stretching, and balancing. The breathing exercises too included
949
+ full breathing, balancing breathing, and an inward focusing
950
+ practice. Chanting and meditation promoted calmness, stress
951
+ reduction, and concentration. The second possible reason was
952
+ that the convenience of the module made it possible to practice
953
+ daily. We speculate that the daily practice may have contributed
954
+ strongly to its efficacy. The third reason was that we know from
955
+ modern research that yoga is related with physical, cognitive, and
956
+ emotional benefits. This module may have worked because it is a
957
+ shorter version of a proven practice.
958
+ CONCLUSION
959
+ It may be concluded that the short duration ICYM can be
960
+ considered for inclusion in the daily school schedule when it is
961
+ not feasible for a longer duration module to be included.
962
+ The study has substantial strengths: (i) ICYM was a systematically
963
+ developed and validated module, (ii) the research design and
964
+ sample size were robust, (iii) the variables covered the major
965
+ domains defined as the whole child, (iv) the quantitative study
966
+ was supplemented with a qualitative assessment.
967
+ The limitations of the study were: (i) unequal randomization, (ii)
968
+ lack of follow-up assessments. Future studies could specialize
969
+ in assessing multiple variables within each benefit category.
970
+ Longitudinal studies could strengthen the findings of this study.
971
+ Classroom yoga modules for different age groups could be
972
+ developed and tested.
973
+ Acknowledgments
974
+ We would like to acknowledge the cooperation of the Samsidh
975
+ Mount Litera Zee School management, teachers, and especially
976
+ the enthusiastic young students.
977
+ Financial support and sponsorship
978
+ Nil.
979
+ Conflicts of interest
980
+ There are no conflicts of interest.
981
+ REFERENCES
982
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+ 108
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+ India. National Journal of Laboratory Medicine, 6(2.80), 6-24.
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+ Zenner, C., Herrnleben-Kurz, S., & Walach, H. (2014). Mindfulness-based
1147
+ interventions in schools – A systematic review and meta-analysis.
1148
+ Frontiers in Psychology, 5, 603.
1149
+ [Downloaded free from http://www.ym-kdham.in on Monday, June 6, 2022, IP: 136.232.192.146]
subfolder_0/Effect of two yoga-based relaxation techniques on memory scores and state anxiety.txt ADDED
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1
+ BioMed
2
+ Central
3
+ Open Access
4
+ Page 1 of 5
5
+ (page number not for citation purposes)
6
+ BioPsychoSocial Medicine
7
+ Short report
8
+ Effect of two yoga-based relaxation techniques on memory scores
9
+ and state anxiety
10
+ Pailoor Subramanya and Shirley Telles*
11
+ Address: Indian Council of Medical Research Center for Advanced Research in Yoga and Neurophysiology, SVYASA, Bangalore, India
12
+ Email: Pailoor Subramanya - [email protected]; Shirley Telles* - [email protected]
13
+ * Corresponding author
14
+ Abstract
15
+ Background: A yoga practice involving cycles of yoga postures and supine rest (called cyclic
16
+ meditation) was previously shown to improve performance in attention tasks more than relaxation
17
+ in the corpse posture (shavasana). This was ascribed to reduced anxiety, though this was not
18
+ assessed.
19
+ Methods: In fifty-seven male volunteers (group average age ± S.D., 26.6 ± 4.5 years) the immediate
20
+ effect of two yoga relaxation techniques was studied on memory and state anxiety. All participants
21
+ were assessed before and after (i) Cyclic meditation (CM) practiced for 22:30 minutes on one day
22
+ and (ii) an equal duration of Supine rest (SR) or the corpse posture (shavasana), on another day.
23
+ Sections of the Wechsler memory scale (WMS) were used to assess; (i) attention and
24
+ concentration (digit span forward and backward), and (ii) associate learning. State anxiety was
25
+ assessed using Spielberger's State-Trait Anxiety Inventory (STAI).
26
+ Results: There was a significant improvement in the scores of all sections of the WMS studied after
27
+ both CM and SR, but, the magnitude of change was more after CM compared to after SR. The state
28
+ anxiety scores decreased after both CM and SR, with a greater magnitude of decrease after CM.
29
+ There was no correlation between percentage change in memory scores and state anxiety for
30
+ either session.
31
+ Conclusion: A cyclical combination of yoga postures and supine rest in CM improved memory
32
+ scores immediately after the practice and decreased state anxiety more than rest in a classical yoga
33
+ relaxation posture (shavasana).
34
+ Findings
35
+ Yoga includes practices such as physical postures, regu-
36
+ lated breathing, and meditation, among other techniques
37
+ [1]. Meditation practice reduces stress and increases calm-
38
+ ness [2], but many novices find it difficult to practice med-
39
+ itation initially [3]. In fact, meditation is the seventh of
40
+ eight steps traditionally described [Patanjali, circa 900
41
+ B.C.] [1]. Some people find it easier to begin by practicing
42
+ yoga postures. Based on this a 'moving meditation' called
43
+ cyclic meditation was evolved which has cycles of yoga
44
+ postures alternating with guided relaxation while supine
45
+ [3]. Cyclic meditation practice improved the performance
46
+ in a P300 event related potential task [4] and also
47
+ improved the performance in a letter cancellation task [5].
48
+ Published: 13 August 2009
49
+ BioPsychoSocial Medicine 2009, 3:8
50
+ doi:10.1186/1751-0759-3-8
51
+ Received: 16 June 2009
52
+ Accepted: 13 August 2009
53
+ This article is available from: http://www.bpsmedicine.com/content/3/1/8
54
+ © 2009 Subramanya and Telles; licensee BioMed Central Ltd.
55
+ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0),
56
+ which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
57
+ BioPsychoSocial Medicine 2009, 3:8
58
+ http://www.bpsmedicine.com/content/3/1/8
59
+ Page 2 of 5
60
+ (page number not for citation purposes)
61
+ Both tasks require selective attention and concentration.
62
+ The benefits were ascribed to possible stress reducing
63
+ effects of cyclic meditation, as the practice reduces physi-
64
+ ological [6,7] and cortical [8] arousal. However the effects
65
+ of cyclic meditation on state anxiety have not been
66
+ assessed.
67
+ In the present study cyclic meditation was compared to an
68
+ equal duration of supine rest in the corpse posture (sha-
69
+ vasana), as both are supposed to increase relaxation.
70
+ Hence, the present study was designed to assess the effects
71
+ of cyclic meditation and shavasana on state anxiety and
72
+ the performance in memory tasks, to see whether they
73
+ would change after the practices.
74
+ There were 57 male participants, aged between 18 and 40
75
+ years (group average age ± S.D., 26.6 ± 4.5 years), all with
76
+ normal health and not on medication. They were residing
77
+ at a yoga center. All of them had a minimum of 15 years
78
+ of education and could understand the tasks. Their expe-
79
+ rience of cyclic meditation and of relaxation in the corpse
80
+ posture (shavasana) was between 6 and 48 months (group
81
+ average 20.1 ± 14.9 months). The study had been
82
+ explained to the participants, whose signed informed con-
83
+ sent was taken. The Institutional Ethics committee
84
+ approval was obtained.
85
+ All participants were assessed before and after two practice
86
+ sessions, viz., cyclic meditation (CM) and supine rest (SR)
87
+ in shavasana. At random twenty-nine participants had CM
88
+ on the first day, and SR the next day. The remaining par-
89
+ ticipants had the reverse schedule. The time of day was
90
+ kept constant for both sessions of an individual. Sessions
91
+ were 22:30 minutes in duration.
92
+ Memory tasks were selected from the Wechsler memory
93
+ scale which has been standardized for use in an Indian
94
+ population. The following sections were selected (i) digit
95
+ span forward and backward, and (ii) verbal paired associ-
96
+ ate learning (easy and hard), with 10 items each. The ver-
97
+ bal
98
+ paired
99
+ associate
100
+ learning
101
+ task
102
+ involved
103
+ the
104
+ presentation of ten pairs of unrelated words as three trials.
105
+ After the three trials the examinee was presented with the
106
+ first word in each pair and he or she was asked to provide
107
+ the second word. Out of the ten pairs, six pairs were
108
+ semantically easy to remember (e.g., table-chair). Where
109
+ such associations existed, it was described as associate
110
+ learning, easy. Where there were no such associations the
111
+ task was described as associate learning, hard. There were
112
+ six pairs for the easy task and four pairs for the hard task.
113
+ Each correct answer was scored as '1' (for digit span for-
114
+ ward or backward), while for associate learning, each easy
115
+ answer was scored as '1' and difficult or hard answer as '2'.
116
+ This was based on the conventional scoring for Wechsler
117
+ memory scale [9]. Parallel worksheets were prepared,
118
+ changing the digits and words to eliminate serial testing
119
+ artifacts when retesting [10].
120
+ State anxiety was assessed using the Spielberger's State-
121
+ Trait Anxiety Inventory at the beginning and end of the
122
+ CM and SR sessions, after the memory tasks.
123
+ Test sheets were blind scored by a person who was una-
124
+ ware about the participant's practice session or whether
125
+ the assessments were before or after a practice session.
126
+ During cyclic meditation participants kept their eyes
127
+ closed and followed pre-recorded instructions. The
128
+ emphasis was on carrying out the practice slowly, with
129
+ awareness and relaxation. The practice has been detailed
130
+ in earlier reports [4,6], but is described here in brief. The
131
+ practice begins with isometric contraction of the muscles
132
+ of the body while supine (1:00 min), followed by a stand-
133
+ ing posture (2:20 min), and two side bending postures
134
+ (3:50 min). This is followed once more by a standing pos-
135
+ ture (2:20 min), a forward bending posture (1:30 min)
136
+ and a backward bending posture (1:30 min). These yoga
137
+ postures are followed by 10:00 min of guided relaxation
138
+ while supine, with instructions to relax different parts of
139
+ the body while being aware of them.
140
+ Relaxation in the corpse posture (shavasana) or supine rest
141
+ was for the same duration, i.e., 22:30 min. This is a classic
142
+ yoga posture, intended for relaxation [11]. Here, partici-
143
+ pants lie flat on the ground with their legs apart, arms
144
+ away from the sides of the body, palms facing upwards
145
+ and the eyes closed. During the training, participants had
146
+ been instructed to attempt to remain relaxed while being
147
+ aware of body sensations during shavasana.
148
+ Data were analyzed using SPSS (Version 16.0). There were
149
+ separate repeated measures analyses of variance (ANO-
150
+ VAs) for each of the assessments, with two Within Sub-
151
+ jects factors [i.e., States (before, after) and Sessions (CM,
152
+ SR)]. Post-hoc analysis was with Bonferroni adjustment,
153
+ comparing after with before values. The percentage
154
+ change in each of the memory tasks {(where percentage
155
+ change was [(After-value/Before-value*100)-100]} was
156
+ tested for correlation with state anxiety using the Pearson
157
+ correlation test.
158
+ Digit span forward scores differed significantly between
159
+ Sessions (F = 4.1, p = 0.048), and between States (F =
160
+ 286.4, p < 0.001), with a significant interaction between
161
+ them (F = 13.4, p < 0.001). Digit span backward scores
162
+ also differed between Sessions (F = 15.7, p < 0.001), and
163
+ States (F = 124.4, p < 0.001) with a significant interaction
164
+ between them (F = 37.9, p < 0.001). Similarly, associate
165
+ BioPsychoSocial Medicine 2009, 3:8
166
+ http://www.bpsmedicine.com/content/3/1/8
167
+ Page 3 of 5
168
+ (page number not for citation purposes)
169
+ Change in scores (mean ± SD) of (a) Digit-span forward and backward, (b) Associate learning, easy and hard, and (c) State anx-
170
+ iety, before and after CM and SR
171
+ Figure 1
172
+ Change in scores (mean ± SD) of (a) Digit-span forward and backward, (b) Associate learning, easy and hard,
173
+ and (c) State anxiety, before and after CM and SR. *** p < 0.001, after compared to before (post-hoc analysis).
174
+ a)
175
+ 0
176
+ 1
177
+ 2
178
+ 3
179
+ 4
180
+ 5
181
+ 6
182
+ 7
183
+ 8
184
+ 9
185
+ 10
186
+ CM
187
+ SR
188
+ CM
189
+ SR
190
+ Digit span forw ard
191
+ Digit span backw ard
192
+ Scores (in numbers)
193
+ Before
194
+ After
195
+ ***
196
+ ***
197
+ ***
198
+ ***
199
+ b)
200
+ 0
201
+ 5
202
+ 10
203
+ 15
204
+ 20
205
+ 25
206
+ CM
207
+ SR
208
+ CM
209
+ SR
210
+ Associate learning easy
211
+ Associate learning hard
212
+ Scores (in numbers)
213
+ Before
214
+ After
215
+ ***
216
+ ***
217
+ ***
218
+ ***
219
+ c)
220
+ STAI
221
+ 0
222
+ 5
223
+ 10
224
+ 15
225
+ 20
226
+ 25
227
+ 30
228
+ 35
229
+ 40
230
+ 45
231
+ 50
232
+ CM
233
+ SR
234
+ Sessions
235
+ Scores (in numbers)
236
+ Before
237
+ After
238
+ ***
239
+ ***
240
+
241
+ Before
242
+ After
243
+ BioPsychoSocial Medicine 2009, 3:8
244
+ http://www.bpsmedicine.com/content/3/1/8
245
+ Page 4 of 5
246
+ (page number not for citation purposes)
247
+ learning, easy scores differed significantly between Ses-
248
+ sions (F = 16.5, p < 0.001), and States (F = 237.9, p <
249
+ 0.001), with the interaction between the two being signif-
250
+ icant (F = 37.1, p < 0.001). Also, for associate learning,
251
+ hard, the scores differed significantly between Sessions (F
252
+ = 16.4, p < 0.001) and States (F = 268.5, p < 0.001), with
253
+ a significant interaction between them (F = 94.4, p <
254
+ 0.001).
255
+ The state anxiety scores also differed significantly between
256
+ Sessions (F = 54.9, p < 0.001), and States (F = 175.5, p <
257
+ 0.001), with a significant interaction between them (F =
258
+ 178.8, p < 0.001).
259
+ A significant interaction between factors, suggests that the
260
+ two factors are not independent of each other, or one fac-
261
+ tor may be modified by the other factor.
262
+ Post-hoc analyses showed that following both CM and SR
263
+ there was a significant increase in digit span forward
264
+ scores (p < 0.001 in both cases), digit span backward
265
+ scores (p < 0.001 in both cases), associate learning, easy (p
266
+ < 0.001 in both cases) and associate learning, hard (p <
267
+ 0.001 in both cases). State anxiety scores decreased after
268
+ both CM and SR (p < 0.001 in both cases). All values for
269
+ post-hoc analyses were Bonferroni adjusted (Figure 1).
270
+ The increase in scores for the digit span and associate
271
+ learning tasks following CM was greater [digit span for-
272
+ ward (27.7 percent), backward (33.5 percent), associate
273
+ learning, easy (20.7 percent), and associate learning hard
274
+ (37.7 percent)] than the increase following SR [digit span
275
+ forward (16.1 percent), backward (9.2 percent), associate
276
+ learning, easy (9.4 percent), and associate learning, hard
277
+ (10.6 percent)]. Also, there was a greater magnitude of
278
+ decrease in state anxiety after CM (22.4 percent) com-
279
+ pared to after SR (5.6 percent). The digit span tests assess
280
+ attention, concentration and primary working memory
281
+ [12]. Earlier studies have shown that CM practice
282
+ increases selective attention more than an equal duration
283
+ of supine rest [4,5]. The present results suggest that pri-
284
+ mary working memory also improves with CM practice.
285
+ Verbal paired associate learning assesses integration of
286
+ information and episodic memory. The present results
287
+ suggest an improvement in these aspects of memory after
288
+ both CM and SR, with a greater magnitude of increase
289
+ after CM.
290
+ Cyclic meditation involves movement, and such practices
291
+ (another example being Tai-Chi-Qui-Gong) have been
292
+ described as 'moving meditations' [13]. These techniques
293
+ are described as meditations because during these prac-
294
+ tices practitioners ideally assume a meditative state of
295
+ mind. This is characterized by interoception, awareness of
296
+ body sensations, and relaxation [14]. Hence though these
297
+ moving meditations differ from the classic description of
298
+ meditation, in which the practitioners remain seated,
299
+ keeping as still as possible, the mental state in both prac-
300
+ tices is supposed to be comparable.
301
+ The present results suggest that movement as a part of
302
+ cyclic meditation may actually facilitate performance in
303
+ attention and memory tasks more than an equal duration
304
+ of time in a conventional relaxation posture (shavasana).
305
+ A major drawback of the study is that participants were
306
+ residing at the yoga center, and though they were not spe-
307
+ cifically told about the previous studies, they had access to
308
+ them and this could have influenced their performance
309
+ and hence the outcome. An attempt would be made to
310
+ conduct the assessments on participants who are trained
311
+ in CM but have no access to the findings reported earlier.
312
+ Conflict of interests
313
+ PS and ST have no conflicts of interest in relation to this
314
+ article.
315
+ Authors' contributions
316
+ PS carried out the assessments, the data analysis and par-
317
+ ticipated in compiling the manuscript. ST conceived and
318
+ designed the study, and compiled the manuscript. Both
319
+ authors read and approved the final manuscript.
320
+ Acknowledgements
321
+ The authors gratefully acknowledge H.R. Nagendra, Ph.D. who derived the
322
+ cyclic meditation technique from an ancient yoga text. The funding from the
323
+ Indian Council of Medical Research (ICMR), Government of India, as part
324
+ of a grant (Project No. 2001-05010) towards the Centre for Advanced
325
+ Research in Yoga and Neurophysiology (CAR-Y&N) is also gratefully
326
+ acknowledged.
327
+ References
328
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+ "BioMed Central will be the most significant development for
367
+ disseminating the results of biomedical research in our lifetime."
368
+ Sir Paul Nurse, Cancer Research UK
369
+ Your research papers will be:
370
+ available free of charge to the entire biomedical community
371
+ peer reviewed and published
372
+ immediately upon acceptance
373
+ cited in PubMed and archived on PubMed Central
374
+ yours — you keep the copyright
375
+ Submit your manuscript here:
376
+ http://www.biomedcentral.com/info/publishing_adv.asp
377
+ BioMedcentral
378
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subfolder_0/Effect of yoga on EUROFIT physical fitness parameters on adolescents dwelling in an orphan home A randomized control study.txt ADDED
@@ -0,0 +1,902 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Full Terms & Conditions of access and use can be found at
2
+ http://www.tandfonline.com/action/journalInformation?journalCode=rvch20
3
+ Download by: [14.139.155.82]
4
+ Date: 27 July 2016, At: 23:55
5
+ Vulnerable Children and Youth Studies
6
+ An International Interdisciplinary Journal for Research, Policy and Care
7
+ ISSN: 1745-0128 (Print) 1745-0136 (Online) Journal homepage: http://www.tandfonline.com/loi/rvch20
8
+ Effect of yoga on EUROFIT physical fitness
9
+ parameters on adolescents dwelling in an orphan
10
+ home: A randomized control study
11
+ Satya Prakash Purohit, Balaram Pradhan & Hongasandra Ramarao
12
+ Nagendra
13
+ To cite this article: Satya Prakash Purohit, Balaram Pradhan & Hongasandra Ramarao
14
+ Nagendra (2016) Effect of yoga on EUROFIT physical fitness parameters on adolescents
15
+ dwelling in an orphan home: A randomized control study, Vulnerable Children and Youth
16
+ Studies, 11:1, 33-46, DOI: 10.1080/17450128.2016.1139764
17
+ To link to this article: http://dx.doi.org/10.1080/17450128.2016.1139764
18
+ Published online: 05 Feb 2016.
19
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+ Effect of yoga on EUROFIT physical fitness parameters on
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+ adolescents dwelling in an orphan home: A randomized
26
+ control study
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+ Satya Prakash Purohit
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+ a, Balaram Pradhana and Hongasandra Ramarao Nagendrab
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+ aDivision of Yoga and Humanities, S-VYASA Yoga University, Bengaluru, India; bChancellor, S-VYASA Yoga
30
+ University, Bengaluru, India
31
+ ABSTRACT
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+ Childhood parental loss, parental separation, poverty and rearing
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+ in orphanages have negative impact on physical, psychological
34
+ and social well-being in orphans. Yoga has a profound knowledge
35
+ base and practical solutions for such traumatic consequences. The
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+ aim of the study was to evaluate the effect of a Yoga program on
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+ the physical fitness of adolescents staying in an orphanage. A total
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+ of 72 apparently healthy adolescents participated from an orpha-
39
+ nage. They were randomized (based on their age and gender) and
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+ allocated into two groups as Yoga group (n = 40; 14 girls, 26 boys
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+ and age = 12.69 ± 1.35) and Wait-List Control group (WLC) (n = 32,
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+ 13 girls, 19 boys and age = 12.58 ± 1.52). The Yoga group (YG)
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+ underwent 3 months of Yoga program in a schedule of 90 mins/
44
+ day and 4 days/week, whereas the WLC group underwent day-to-
45
+ day activities. European physical fitness test battery (EUROFIT) was
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+ assessed in both groups at the beginning and end of the program.
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+ The group × time interaction analysis showed significant (p < 0.05)
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+ positive differences in Flamingo left-leg balance (FLL), Flamingo
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+ right-leg balance (FLR), left-hand tapping test (PTL), right-hand
50
+ tapping test (PTR), sit and reach (SAR), standing broad jump
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+ (SBJ), sit-ups (SUP), bent arm hang (BAH) test, shuttle run (SHR)
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+ in YG compared to WLC group. Further analysis done on group ×
53
+ time interaction along with Bonferroni-corrected p-values showed
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+ significant positive differences in FLL, FLR, PTL, PTR, SAR, SBJ and
55
+ SUP in YG compared to WLC group. The results suggested that the
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+ 3-month Yoga program was found useful for the young orphan
57
+ adolescents in improving their physical fitness.
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+ ARTICLE HISTORY
59
+ Received 14 June 2015
60
+ Accepted 31 December 2015
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+ KEYWORDS
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+ Yoga; orphans; physical
63
+ fitness; EUROFIT; adolescents
64
+ Children who are under the age of 18 years and have lost one or both parents are
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+ known as orphans and are categorized as double or single orphans, respectively. Single
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+ orphans are categorized as maternal orphans, the children who have lost their mothers,
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+ and paternal orphans, who have lost their fathers (George, 2011; UNICEF, UNAID, &
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+ USAID, 2004). There is another category called social orphans, the children who live
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+ without parents because of abandonment, or because their parents gave them up as a
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+ result of poverty, alcoholism or imprisonment (Dillon, 2009). The total number of
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+ CONTACT Satya Prakash Purohit
72
73
+ Research Scholar, Division of Yoga and Humanities,
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+ S-VYASA Yoga University, # 19, Eknath Bhavan, Gavipuram Circle, Bengaluru 560019, India
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+ VULNERABLE CHILDREN AND YOUTH STUDIES, 2016
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+ VOL. 11, NO. 1, 33–46
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+ http://dx.doi.org/10.1080/17450128.2016.1139764
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+ © 2016 Taylor & Francis
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+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
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+ orphans estimated is 143 million worldwide (UNICEF, UNAID, & USAID, 2004),
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+ 72 million in South Asia and East Asia (UNICEF, 2008) and 20 million in India
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+ (Rajan & James, 2008).
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+ Orphan children are considered to be one of the most disadvantaged groups, who live a
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+ life full of stress, poverty and grief and are easily subjected to be abused, neglected and
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+ exploited (Nayak, 2014). Poverty in early childhood is one of the major predictor of worse
86
+ developmental outcomes in later life (Heckman, 2006). Early parental loss and permanent
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+ or long-term separation from parents affect neuroendocrine functions (Luecken &
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+ Appelhans, 2006; Nicolson, 2004), basal salivary cortisol concentrations (Pfeffer,
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+ Altemus, Heo, & Jiang, 2007), HPA axis mediation (Chrousos, 2009; Romero, Dickens,
90
+ & Cyr, 2009), which can induce chronic stress and later produce a negative impact on the
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+ physical and mental health in developing children (Luecken & Roubinov, 2012).
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+ The orphans are in need of supportive living environment because their biological
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+ parents are unable to take care of them (UNICEF, 2008). There are many NGOs
94
+ working for orphans at local, national and international level through orphanages to
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+ support basic needs and education. But there are many limitations associated with
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+ orphanages. At orphanages, orphans are unable to get individualized nurturing (Ahmad
97
+ et al., 2005), are deprived of emotional fulfillment as they could have got from their
98
+ family and relatives and are away from the social customs, culture, tradition, norms and
99
+ regulation (Naqshbandi, Sehgal, & Hassan, 2012). A study also showed that post-
100
+ institutionalized children had motor system delays compared to the noninstitutiona-
101
+ lized children (Roeber, Tober, Bolt, & Pollak, 2012).
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+ Whatever the external condition may be, the children have to evolve out from the
103
+ environment and prove themselves as the children of mainstream. For such a positive
104
+ change in them, they need to be physically and mentally fit. Physical fitness is being
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+ considered as a powerful marker of health in childhood and adolescent and can be defined
106
+ as the ability to perform a given set of physical activity, which later translate into
107
+ cardiorespiratory fitness, muscular fitness, speed and agility (Ortega, Ruiz, Castillo, &
108
+ Sjöström, 2008). Effective intervention programs are found to be helpful for the promotion
109
+ of physical health for school children (Pelegrini, Silva, Petroski, & Glaner, 2011).
110
+ Yoga is also now considered as an important intervention for promoting physical
111
+ health. Regular practice of yoga promotes muscular strength (Bhavanani, Udupa,
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+ Madanmohan, & Ravindra, 2011; Chen, Mao, Lai, Li, & Kuo, 2009; Dash & Telles,
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+ 2001), endurance (Chen et al., 2009; D’souza & Avadhany, 2014), flexibility (Bal &
114
+ Kaur, 2009; Chen et al., 2009), cardiopulmonary fitness (Bhutkar, Bhutkar, Taware, &
115
+ Surdi, 2011; Chen et al., 2009) and overall physical fitness (Telles, Singh, Bhardwaj,
116
+ Kumar, & Balkrishna, 2013) in children.
117
+ Thus, the present study is intended to evaluate the effect of yoga on physical fitness
118
+ of the young orphan adolescents.
119
+ Method
120
+ Participants
121
+ The study was conducted in an orphanage, a suburban area of Bangalore between the
122
+ months September 2014 and November 2014. A total of 135 resident young adolescent
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+ 34
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+ S. P. PUROHIT ET AL.
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+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
126
+ orphans were screened in the study, out of which only 80 were enrolled based on the
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+ inclusion and exclusion criteria. Children were eligible for inclusions if they (a) were
128
+ orphans of any type, (b) aged between 11–16 years, (c) boys and girls, (d) apparently
129
+ healthy children with no chronic illness and (e) physically or mentally handicapped.
130
+ The approvals from the Institutional Review Board and the Institutional Ethics
131
+ Committee of Swami Vivekananda Yoga Anusandhana Samsthana (S-VYASA) Yoga
132
+ University were obtained as per the guidelines. A signed informed consent from the
133
+ institution head and a signed informed assent was obtained from all participants after
134
+ explaining the study in detail.
135
+ Design
136
+ This was a randomized WLC pre-post study. Participants were randomized by a
137
+ statistician using a computerized random number table from www.randomizer.org
138
+ and assigned into two groups as Yoga group (YG) and WLC. The YG underwent the
139
+ Yoga program for 3 months. Participants in the WLC underwent day-to-day regular
140
+ activity (study).
141
+ Intervention
142
+ The YG was given integrated approach of yoga – 90 minutes, 4 days/week, 3 months.
143
+ Later the same intervention was served to WLC for same duration. The yoga
144
+ intervention was taught and supervised by two certified yoga teachers from S-
145
+ VYASA (one with master’s degree in yoga and the other with postgraduation
146
+ diploma in yoga therapy). The principle and concept of an integrated approach of
147
+ yoga is based on the research works of S-VYASA (Nagarathna & Nagendra, 2006). In
148
+ the beginning of the class there used to be yogic prayer, a small session on under-
149
+ standing of the yogic concepts and their relevance to lead a positive lifestyle. Yoga
150
+ intervention included loosening and breathing exercises, yoga postures, concentra-
151
+ tion and relaxation techniques and yogic games aimed to the multidimensional
152
+ strengthening of the body, mind and social skills. The various components of the
153
+ Yoga program are mentioned in the Table 1.
154
+ Assessments
155
+ The following explained data were collected by the research staffof S-VYASA during
156
+ the pre- and post-adjacent weeks to the intervention period for all the recruited
157
+ participants. The investigators and two physical education teachers were available to
158
+ answer questions and provide unbiased guidance during the assessment. The statis-
159
+ tician who generated the randomization sequence and subsequently analyzed the
160
+ data and the researchers who were carrying out the allocation and assessments were
161
+ blinded.
162
+ Demographic data
163
+ Age, gender, education, parental status, duration of staying in orphanage were collected
164
+ from the office record and through an interview.
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+ VULNERABLE CHILDREN AND YOUTH STUDIES
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+ 35
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+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
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+ Table 1. List of practices in the Yoga program.
169
+ Order no.
170
+ Intervention components
171
+ No. of rounds
172
+ Approx. time (total 90 min)
173
+ Schedule
174
+ General justification
175
+ 1
176
+ Yogic prayer, session on basic concepts of
177
+ yoga and instructions for the class
178
+ 10 min
179
+ 4 days /week
180
+ (Wednesday, Thursday,
181
+ Saturday and Sunday)
182
+ Give directions and
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+ motivation for living a life
184
+ with positivity and
185
+ enthusiasm with acceptance
186
+ and the importance of
187
+ different yoga activities/skills
188
+ 2
189
+ Preparatory practices
190
+ (a)
191
+ Warm-up: jogging, jumping, hop-
192
+ ping, forward and backward bend-
193
+ ing, side bends and twisting
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+ (b)
195
+ Loosening: for toes, ankle, knee,
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+ hips, fingers, wrist, elbow and neck
197
+ (c)
198
+ Stretching with breathing exercises:
199
+ hands in and out, hands stretch,
200
+ ankle stretch, hip stretch, back-
201
+ stretch, tiger stretch (spinal up-
202
+ downs), supine straight leg raising,
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+ cycling, lumber stretch, rocking and
204
+ rolling
205
+ 1 each
206
+ 10 min
207
+ 4 days /week
208
+ (Wednesday, Thursday,
209
+ Saturday and Sunday)
210
+ Preparatory practices of
211
+ asana and Pranayama.
212
+ Warm up the body, loosen
213
+ the joints and stretch the
214
+ muscles
215
+ 3
216
+ Sun salutation (Suryanamaskar)
217
+ 10–12
218
+ 10 min
219
+ 4 days /week
220
+ (Wednesday, Thursday,
221
+ Saturday and Sunday)
222
+ Gives an all-round benefit by
223
+ balancing physiological
224
+ systems and removing
225
+ mental rigidity (Tamas)
226
+ (Continued)
227
+ 36
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+ S. P. PUROHIT ET AL.
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+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
230
+ Table 1. (Continued).
231
+ Order no.
232
+ Intervention components
233
+ No. of rounds
234
+ Approx. time (total 90 min)
235
+ Schedule
236
+ General justification
237
+ 4
238
+ Asana (postures)
239
+ A. Standing postures
240
+ (a) Half waist rotation posture (Ardhakati
241
+ Chakrasana)
242
+ (b) Foot palm posture (Padahastasana)
243
+ (c) Half wheel posture (Ardha Chakrasana)
244
+ (d) Triangle posture (Trikonasana)
245
+ (e) Tree posture (Vrikshasana)
246
+ (f) Eagle posture (Garudasana)
247
+ B. Sitting postures
248
+ (a) Diamond (Vajrasana)
249
+ (b) Rabbit posture (Shashankasana)
250
+ (c) Sleeping diamond posture (Supta
251
+ Vajrasana)
252
+ (d) Camel posture (Ustrasana)
253
+ (e) Posterior stretch (Paschimottanasana)
254
+ (f) Spinal twist posture (Ardha
255
+ Matsyendrāsana)
256
+ (g) Cow face posture (Gomukhasana)
257
+ C. Prone posture
258
+ (a) Cobra posture (Bhujangasana)
259
+ (b) Grasshopper posture (Salabhasana)
260
+ (c) Bow posture (Dhanurasana)
261
+ (d) Shoulder stand (Sarvangasana)
262
+ (e) Plough posture (Halasana)
263
+ D. Supine postures
264
+ (a) Fish posture (Matsyasana)
265
+ (b) Boat posture (Naukasana)
266
+ 1 each
267
+ 20 min (around 1 min each posture)
268
+ 4 days /week
269
+ (Wednesday, Thursday,
270
+ Saturday and Sunday)
271
+ Culturing the body and mind
272
+ by improving strength,
273
+ stamina and flexibility
274
+ 5
275
+ Deep relaxation technique (DRT)
276
+ 1
277
+ 10 min
278
+ 4 days /week
279
+ (Wednesday, Thursday,
280
+ Saturday and Sunday)
281
+ Gives total rest to the body
282
+ muscles and mind
283
+ (Continued)
284
+ VULNERABLE CHILDREN AND YOUTH STUDIES
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+ 37
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+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
287
+ Table 1. (Continued).
288
+ Order no.
289
+ Intervention components
290
+ No. of rounds
291
+ Approx. time (total 90 min)
292
+ Schedule
293
+ General justification
294
+ 6
295
+ Pranayama (voluntary regulation of breath)
296
+ (a)
297
+ Breathing with forceful exhalation
298
+ with
299
+ passive
300
+ inhalation
301
+ (Kapalabhati-3 types)
302
+ (b)
303
+ Breathing with rapid inhalation and
304
+ exhalation (Bhastrika)
305
+ (c)
306
+ Slow and rhythmic alternate nostril
307
+ breathing (Nadi Sodhana)
308
+ (d)
309
+ Exhalation, with a honeybee sound
310
+ (Bhramari)
311
+ (e)
312
+ Hissing in thought while exhaling
313
+ (Ujjai)
314
+ 1 each
315
+ 15 min
316
+ 4 days (Wednesday, Thursday,
317
+ Saturday and Sunday)
318
+ Improves lung capacity,
319
+ balances vital energy,
320
+ regulates emotions by
321
+ reducing anxiety and stress
322
+ 7
323
+ Concentration techniques
324
+ (a)
325
+ Eye exercises (Netra Sakti Vikasana)
326
+ (b)
327
+ Practice to improve collective moti-
328
+ vation (Dhriti Sakti Vikasaka)
329
+ (c)
330
+ Activity to improve intellect (Dhi
331
+ shakti vikasaka)
332
+ (d)
333
+ Trataka
334
+ (e)
335
+ Palming
336
+ 1 each
337
+ 15 min
338
+ 2 days /week
339
+ (Wednesday and Saturday)
340
+ Gives rest and rejuvenates
341
+ the ocular muscle.
342
+ Also improves concentration
343
+ and attention
344
+ 8
345
+ Yogic games (games for memory, awareness
346
+ and creativity)
347
+ 15 min
348
+ 2 days /week
349
+ (Thursday and Sunday)
350
+ Yogic games help in
351
+ reducing stress and the
352
+ feeling of loneliness by
353
+ improving the social skills/
354
+ peer relationship and caring
355
+ attitude
356
+ 38
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+ S. P. PUROHIT ET AL.
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+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
359
+ Anthropometric measures
360
+ (a) Height (in cms) was measured in standing position without footwear, to nearest to
361
+ 0.1 cm. (b) The participants were weighed with a standard weighing (Wt) machine, to
362
+ nearest to 0.1 kg. (c) Body mass index (BMI) was calculated for each participant from
363
+ the height and weight of the individual by using formula BMI = Wt in kg/Ht in m2.
364
+ EUROFIT physical tests battery (Adam, Klissouras, Ravazzolo, Renson, & Tuxworth,
365
+ 1988)
366
+ EUROFIT physical fitness test is a standardized battery, which was developed by the
367
+ Council of Europe���s Committee to help the teachers to access the physical health-related
368
+ fitness of the children of school age and it has been used in many European schools since
369
+ 1988. The tests selected from the battery were (1) Flamingo left-leg balance (FLL), (2)
370
+ Flamingo right-leg balance (FLR), (3) left-hand plate tapping test (PTL), (4) right-hand
371
+ plate taping test (5) sit and reach (SAR), (6) standing broad jump (SBJ), (7) left-hand grip
372
+ strength (LHS), (8) right-hand grip strength, (9) sit-ups (SUP), (10) bent arm hang (BAH)
373
+ test and (11) shuttle run (SHR). Prior to the tests, participants were familiarized with the
374
+ test methods by giving them clear instructions with demonstration in a group and once
375
+ again students were taught individually at the time of taking data.
376
+ Data analysis
377
+ Data were analyzed using the Statistical Package for Social Science (Version 18.0). Gender
378
+ categorical variables were analyzed using χ2 test. The independent sample t-test was used
379
+ to check the difference between groups for demographic measures. Analysis of repeated
380
+ measure followed by Bonferroni post hoc was performed for the EUROFIT.
381
+ Results
382
+ Figure 1 shows the study profile. There were total eight dropouts from WLC. The
383
+ reasons for the dropouts were: two were suspended from all the extracurricular activ-
384
+ ities of the institution during the post-assessment due to their behavioral issues, two
385
+ were sick and other four were not willing to complete the task. The data of 40
386
+ participants in YG and 32 in the control group were available for final analysis. The
387
+ baseline BMI of YG and WLC is 15.54 ± 1.94 and 16.23 ± 2.43, respectively, with
388
+ p = 0.039, independent t-test.
389
+ Table 2 displays the baseline mean age between groups (p = 0.78, independent t-test).
390
+ The distribution of gender (p = 0.624, χ2 test) was not significantly different between the
391
+ two groups.
392
+ Repeated measures of analysis of variance (ANOVA) showed that there were no
393
+ significant differences between the two groups’ mean score of baseline (p > 0.05) for all
394
+ EUROFIT’s measures except FLR and SBJ. Post hoc test with Bonferroni adjustment
395
+ (Table 3) showed significant reduction in the number of falls in FLL in 60 sec and
396
+ improvement in the number of tappings (PTL) in 25 sec, improvement in the explosive
397
+ power in SBJ, improvement in the number of SUP in 30 sec and improvement in LHS
398
+ and RHS in both groups. Whereas significant (p < 0.001) improvements in FLR, PTR,
399
+ VULNERABLE CHILDREN AND YOUTH STUDIES
400
+ 39
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+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
402
+ BAH and SHR were found only in YG, significant (p < 0.001) decrement was found in
403
+ SAR in WLC group.
404
+ The group × time interaction (Table 4) showed significant positive differences
405
+ (p < 0.05) in FLL, FLR, PTL, PRT, SAR, SBJ, SUP, BAH and SHR without Bonferroni
406
+ correction. Further analysis done with Bonferroni correction with corrected p-values
407
+ (0.004545455) found significant positive difference in FLL, FLR, PTL, PTR, SAR, SBJ
408
+ and SUP in YG compared to WLC group. This suggested that the performance of YG
409
+ was better than WLC.
410
+ Discussion
411
+ The current randomized two-armed WLC study was aimed to investigate the effect of
412
+ 3 months of yoga intervention on EUROFIT outcome measures on orphan adolescents.
413
+ Table 2. Demographic data.
414
+ Variables
415
+ Yoga (n = 40)
416
+ WLC (n = 32)
417
+ p-Value
418
+ Gender
419
+ Male
420
+ 14 (35%)
421
+ 13 (40.6%)
422
+ 0.624 (χ2 test)
423
+ Female
424
+ 26 (65%)
425
+ 19 (59.4%)
426
+ Orphan status
427
+ Double orphan (n)
428
+ 10 (25.0%)
429
+ 10 (31.3%)
430
+ 0.755 (χ2 test)
431
+ Single orphan (n)
432
+ 20 (50.0%)
433
+ 16 (50.0%)
434
+ Social orphan (n)
435
+ 10 (25.0%)
436
+ 6 (18.8%)
437
+ Anthropometric variables
438
+ Age (years)
439
+ 12.69 ± 1.35
440
+ 12.58 ± 1.52
441
+ 0.735 (Independent sample t-test)
442
+ Height (cm)
443
+ 142.39 ± 11.10
444
+ 149.91 ± 10.92
445
+ 0.568 (Independent sample t-test)
446
+ Weight (kg)
447
+ 31.72 ± 8.11
448
+ 33.82 ± 8.04
449
+ 0.281 (Independent sample t-test)
450
+ The baselines were matched between groups’ variables.
451
+ After 3 months
452
+ Participants screened for the study N = 135
453
+ Participants recruited N = 80
454
+ WLC (n = 40)
455
+ Pre Assessment
456
+ WLC (n = 32)
457
+ Post Assessment
458
+ YOGA (n = 40)
459
+ Pre Assessment
460
+ YOGA (n = 40)
461
+ Post Assessment
462
+ Randomization
463
+ Figure 1. The trial profile.
464
+ 40
465
+ S. P. PUROHIT ET AL.
466
+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
467
+ Table 3. Comparison of EUROFIT physical fitness measures of Yoga group and Wait-List Control group.
468
+ Yoga (n = 40)
469
+ Wait-List Control (n = 32)
470
+ Pre
471
+ Post
472
+ Pre
473
+ Post
474
+ Mean±SD
475
+ 95% C.I.
476
+ (LB to UB)
477
+ Mean±SD
478
+ 95% C.I. (LB to UB) % Change
479
+ Mean ±SD
480
+ 95% C.I. (LB to UB)
481
+ Mean±SD
482
+ 95% C.I. (LB to UB) % Change
483
+ FLL (n)
484
+ 13.25 ± 3.9
485
+ 12–14.5
486
+ 8.75 ± 3.45***
487
+ 7.65–9.85
488
+ 33.96
489
+ 11.97 ± 4.8
490
+ 10.24–13.7
491
+ 11 ± 4.37*
492
+ 9.42–12.58
493
+ 8.09
494
+ FLR (n)
495
+ 13 ± 4.11
496
+ 11.69–14.31
497
+ 8.93 ± 3.92***
498
+ 7.67–10.18
499
+ 31.35
500
+ 10.78 ± 5.19
501
+ 8.91–12.65
502
+ 10.25 ± 5.21
503
+ 8.37–12.13
504
+ 4.93
505
+ PTL (s)
506
+ 16.18 ± 2.88
507
+ 15.26–17.1
508
+ 13.21 ± 2.84***
509
+ 12.3–14.12
510
+ 18.35
511
+ 15.61 ± 2.21
512
+ 14.81–16.41
513
+ 14.87 ± 2.37*
514
+ 14.02–15.73
515
+ 4.75
516
+ PTR (s)
517
+ 14.61 ± 2.37
518
+ 13.85–15.37
519
+ 12.46 ± 2.25***
520
+ 11.74–13.18
521
+ 14.69
522
+ 14.24 ± 2.45
523
+ 13.36–15.12
524
+ 13.68 ± 2.25
525
+ 12.87–14.49
526
+ 3.94
527
+ SAR (cm)
528
+ 36.15 ± 6.4
529
+ 34.1–38.2
530
+ 39.84 ± 6.57***
531
+ 37.74–41.94
532
+ 10.20
533
+ 37.45 ± 5.61
534
+ 35.43–39.47
535
+ 35.73 ± 6.85*
536
+ 33.27–38.2
537
+ 4.59
538
+ SBJ (cm)
539
+ 121.03 ± 24.58
540
+ 113.16–
541
+ 128.89
542
+ 143.9 ± 27.68***
543
+ 135.05–152.75
544
+ 18.90
545
+ 132.88 ± 20.17
546
+ 125.6–140.15
547
+ 138.88 ± 24.13*
548
+ 130.18–147.57
549
+ 4.52
550
+ LHS (kg)
551
+ 14 ± 5.15
552
+ 12.35–15.65
553
+ 18.6 ± 7.47***
554
+ 16.21–20.99
555
+ 32.86
556
+ 15.34 ± 6.19
557
+ 13.11–17.57
558
+ 18.81 ± 6.55***
559
+ 16.45–21.17
560
+ 22.61
561
+ RHS (kg)
562
+ 15.78 ± 6.41
563
+ 13.73–17.82
564
+ 18.5 ± 7.12***
565
+ 16.22–20.78
566
+ 17.27
567
+ 17.84 ± 6.8
568
+ 15.39–20.3
569
+ 19.81 ± 7.6***
570
+ 17.07–22.55
571
+ 11.03
572
+ SUP (n)
573
+ 8.18 ± 7.01
574
+ 5.93–10.42
575
+ 14.55 ± 5.67***
576
+ 12.74–16.36
577
+ 77.98
578
+ 9.03 ± 7.21
579
+ 6.43–11.63
580
+ 10.94 ± 6.78**
581
+ 8.49–13.38
582
+ 21.11
583
+ BAH (s)
584
+ 15.28 ± 15.7
585
+ 10.26–20.3
586
+ 20.8 ± 20.81***
587
+ 14.14–27.45
588
+ 36.10
589
+ 14.64 ± 11.48
590
+ 10.5–18.78
591
+ 16.59 ± 12.25
592
+ 12.17–21
593
+ 13.28
594
+ SHR (s)
595
+ 16.37 ± 1.66
596
+ 15.83–16.9
597
+ 15.68 ± 1.38**
598
+ 15.24–16.12
599
+ 4.21
600
+ 15.95 ± 1.53
601
+ 15.39–16.5
602
+ 16.12 ± 1.38
603
+ 15.63–16.62
604
+ 1.11
605
+ Flamingo left-leg balance (FLL), Flamingo right-leg balance (FLR), left-hand plate tapping test (PTL), right-hand plate tapping test (PTR), sit and reach (SAR), standing broad jump (SBJ), left-
606
+ hand grip strength (LHS), right-hand grip strength (RHS), sit-ups (SUP), bent arm hang (BAH) test and shuttle run (SHR); *p < 0.05, **p < 0.01 and ***p < 0.001; pre compared with post.
607
+ VULNERABLE CHILDREN AND YOUTH STUDIES
608
+ 41
609
+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
610
+ The result showed that the difference in percentage change between the YG and WLC
611
+ in FLL (25.87%), FLR (26.42%), PTL (13.6%), PTR (10.75%), SAR (14.79%), SBJ
612
+ (14.38%), LHS (10.25%), RHS (6.24%), SUP (56.87%), BAH (22.82%) and SHR
613
+ (5.32%), which indicates that the magnitude of change in these variables is higher in
614
+ YG compared to WLC group.
615
+ Our analysis using repeated measures ANOVA following post hoc analysis found
616
+ significant positive improvement in all 11 measures in YG, whereas in WLC group, 6
617
+ measures improved positively and 1 improved negatively as displayed in Table 3. These
618
+ significant changes were appropriately confirmed by using the sign test and the bino-
619
+ mial test.
620
+ In the YG, changes in all 11 variables were in positive direction, in accordance with
621
+ the experimental hypothesis. Applying a sign test gives p = (½)11 = 0.000488, meaning
622
+ that, taking all physical fitness test together, yoga produced overall significant improve-
623
+ ments. In contrast, the control group only improved in 6 out of 11 outcome variables
624
+ for which the sign test gives p = 0.500, which is not significant.
625
+ The group × time interaction found 9 significant positive outcome variables, which
626
+ indicates that yoga intervention had better impact than WLC group. The null hypoth-
627
+ esis that Yoga is entirely equivalent to WLC can be tested overall on significant
628
+ outcome variables (9 out of 11) using binomial test, once again yielding p = 0.0327.
629
+ Hence, overall for all 11 variables considered as a group, the null hypothesis fails; Yoga
630
+ outperformed WLC, that is, the yoga intervention had definite benefits.
631
+ The Flamingo leg balance test (FLL and FLR) is a single leg balance test which
632
+ measures the static balance, the ability to maintain the center of gravity within a base of
633
+ support in a quiet upright position during standing or sitting (Yim-Chiplis & Talbot,
634
+ 2000). The improvements in balance might be due to balancing postures such as
635
+ Vriksasana, Garudasana and Virabhadrasana, which are single-leg stance (Flamingo
636
+ balance) along with visual focus on a single point. Visual focus/concentration also plays
637
+ a role in the balance (Hart & Tracy, 2008) which was taken care up by Trataka practice.
638
+ In contrast, the balance is not improved in YG (Telles et al., 2013). This might be due to
639
+ the variation in the yoga training session duration.
640
+ Table 4. Group × time interaction analysis (Yoga group compared to Wait-List Control group).
641
+ Yoga
642
+ Control
643
+ F-
644
+ values
645
+ Exact p-values without Bonferroni-
646
+ corrected significance
647
+ p-Values after Bonferroni-
648
+ corrected p-value
649
+ FLL
650
+ −4.50 ± 2.15
651
+ −0.97 ± 2.69
652
+ 38.319
653
+ 3.60 × 10−8***
654
+ 3.97 × 10−7***
655
+ FLR
656
+ −4.08 ± 2.13
657
+ −0.53 ± 1.61
658
+ 60.870
659
+ 4.23 × 10−11***
660
+ 4.65 × 10−10***
661
+ PTL
662
+ −2.97 ± 2.36
663
+ −0.74 ± 1.22
664
+ 23.409
665
+ 7.53 × 10−6***
666
+ 8.28 × 10−5***
667
+ PTR
668
+ −2.15 ± 1.94
669
+ −0.56 ± 1.38
670
+ 15.202
671
+ 2.19 × 10−4***
672
+ 0.00241*
673
+ SAR
674
+ 3.69 ± 3.95
675
+ −1.72 ± 4.41
676
+ 30.027
677
+ 6.32 × 10−7***
678
+ 6.95 × 10−6***
679
+ SBJ
680
+ 22.88 ± 16.79
681
+ 6.00 ± 10.08 25.040
682
+ 4.01 × 10−6***
683
+ 4.42 × 10−5***
684
+ LHS
685
+ 4.60 ± 4.09
686
+ 3.47 ± 3.53
687
+ 1.530
688
+ 2.20 × 10−1
689
+ 1.000
690
+ RHS
691
+ 2.73 ± 3.62
692
+ 1.97 ± 2.90
693
+ 0.921
694
+ 3.41 × 10−1
695
+ 1.000
696
+ SUP
697
+ 6.38 ± 4.06
698
+ 1.91 ± 3.92
699
+ 22.187
700
+ 1.22 × 10−5***
701
+ 0.00013***
702
+ BAH
703
+ 5.52 ± 9.22
704
+ 1.94 ± 4.73
705
+ 3.958
706
+ 5.06 × 10−2*
707
+ 0.557
708
+ SHR
709
+ −0.69 ± 1.09
710
+ 0.18 ± 1.65
711
+ 7.105
712
+ 9.54 × 10−3**
713
+ 0.105
714
+ Flamingo left-leg balance (FLL), Flamingo right-leg balance (FLR), left-hand plate tapping test (PTL), right-hand plate
715
+ tapping test (PTR), sit and reach (SAR), standing broad jump (SBJ), left-hand grip strength (LHS), right-hand grip
716
+ strength (RHS), sit-ups (SUP), bent arm hang (BAH) test and shuttle run (SHR); *p < 0.05, **p < 0.01 and ***p < 0.001.
717
+ 42
718
+ S. P. PUROHIT ET AL.
719
+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
720
+ The plate-tapping task (PTL and PTR) measures the motor speed and motor speed is
721
+ determined by muscle strength, endurance and coordination (Hutson, 2014). The result
722
+ in this study showed alignment with the studies where Yoga practices healthy volun-
723
+ teers by a repetitive tapping performance (Dash & Telles, 1999; Telles, Sharma, Yadav,
724
+ Singh, & Balkrishna, 2014) and eye–hand coordination in computer users (Telles, Dash,
725
+ & Naveen, 2009)
726
+ SAR, which measures the trunk flexibility, improved in YG compared to WLC; the
727
+ results aligned with the study done among children (Chen et al., 2009) and young adults
728
+ (Bal & Kaur, 2009) following yoga. This improvement might be due to forward, back-
729
+ ward and side bending, tiger stretching and postures such as Padahastasana,
730
+ Paschimottanasana, Bhujangasana, Ustrasana, Vakrasana and Ardhamatsyandrasana
731
+ included in this study.
732
+ There was also a significant improvement in SBJ in YG compared to WLC and also
733
+ from baseline. This might be due to the improvement in calf muscle strength, which is
734
+ again due to stretching and strengthening of the muscle by applying body weight on the
735
+ legs by Vrikshasana, Trikonasana and Garudasana (D’souza & Avadhany, 2014). It was
736
+ also observed that stretching of the thigh muscles was due to Padahastasana and
737
+ Parvatasana and contraction of the thigh muscles was due to Ardha Chakrasana and
738
+ Bhujangasana (Cobra Pose). Inverted postures such as Halasana and Sarvangasana
739
+ might have helped by reversing the effect of gravity and promoting the blood circula-
740
+ tion and reducing the venous pressure in the leg.
741
+ There was also a higher magnitude of percent change in hand grip strength in LHS
742
+ and RHS in YG compared to WLC. This supports the findings of the Yoga study (Dash
743
+ & Telles, 2001; Madanmohan, Udupa, & Bhavanani, 2003). This might be again due to
744
+ more utilization of upper body muscles for weight-bearing postures in Suryanamaskar
745
+ (Bhutkar et al., 2011) and improved cardiorespiratory fitness of Suryanamaskar. It
746
+ might be due to reduced oxygen need in Pranayama.
747
+ The improvement in duration of time in the BAH in YG might be because of more
748
+ utilization of upper body muscles for weight bearing during the steps of Chaturanga
749
+ Dandasana, Bhujangasana and Parvatasana of Suryanamaskar (Bhutkar et al., 2011).
750
+ This might also be due to the aerobic effects of Suryanamaskar as it involves the static
751
+ stretching and slow dynamic components with an optimal stress on cardiorespiratory
752
+ system (Sinha, Ray, Pathak, & Selvamurthy, 2004).
753
+ The numbers of SUPs in 30 sec were improved in the Yoga compared to WLC
754
+ group, which was aligned with earlier studies (Dwyer, Sallis, Blizzard, Lazzarus, & Dean,
755
+ 2001; Telles et al., 2013). Yogic activities such as straight leg raising, cycling,
756
+ Pavanamuktasana, Navasana and Suryanamaskar might strengthen the abdominal
757
+ muscles. This could also be due to the cardiorespiratory benefit of Suryanamaskar
758
+ (Bhutkar et al., 2011) and improvement of whole-body endurance and resting cardio-
759
+ pulmonary parameters (Bhavanani et al., 2011).
760
+ There was a significant decrease in time in SHR, which showed improvement in
761
+ speed and agility of the individuals in YG compared to WLC, which might be due to the
762
+ improvement in cardiopulmonary fitness (Bhutkar et al., 2011; Chen et al., 2009), speed
763
+ and agility (Bal & Kaur, 2009) in earlier studies in Yoga and also due the dynamic
764
+ practice of Suryanamaskar and Yogic games.
765
+ VULNERABLE CHILDREN AND YOUTH STUDIES
766
+ 43
767
+ Downloaded by [14.139.155.82] at 23:55 27 July 2016
768
+ The strength of the study was that it adopted a randomized control design and the
769
+ sample size was as per the effect size form the study of same setting. The main
770
+ limitation of the study was it was conducted on the adolescents belonging to one
771
+ orphanage and the results were not able to rule out the effect of diet and other school
772
+ activities.
773
+ The study might be improvised in design by further conducting a multicentric
774
+ trial and developing a yoga module especially for orphans. In summary, intervention
775
+ of yoga over a 3-month period suggested the improvements in all EUROFIT mea-
776
+ sures and was useful for the young orphans, to be practiced for physical health on a
777
+ day-to-day basis.
778
+ Acknowledgments
779
+ We are thankful to the Department of Psychology, S-VYASA Yoga University, Bengaluru, for
780
+ providing the necessary support needed for the research.
781
+ Disclosure statement
782
+ No potential conflict of interest was reported by the authors.
783
+ ORCID
784
+ Satya Prakash Purohit
785
+ http://orcid.org/0000-0002-1944-1194
786
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subfolder_0/Effect of yoga on Human Aggression and Violent Behaviour A Review of the Indian Yoga Scriptures and Scientific Studies.txt ADDED
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1
+
2
+
3
+ Instructions for authors, subscriptions and further details:
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+ http://hse.hipatiapress.com
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+ Effect of Yoga on Human Aggression and Violent Behaviour-
6
+ A Review of the Indian Yoga Scriptures and Scientific Studies
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+
8
+ A.G. Govindaraja Setty1, Pailoor Subramanya1 & B. Mahadevan2
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+
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+ 1) Swami Vivekananda Yoga University (SVYASA), India
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+ 2) Indian Institute of Management, Bangalore, India
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+
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+
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+ Date of publication: February 23rd, 2016
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+ Edition period: February 2016-June 2016
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+
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+
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+ To cite this article: Govindaraja Setty, A.G., Subramanya, P., &
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+ Mahadevan, B. (2016). Effect of Yoga on Human Aggression and Violent
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+ Behaviour- A Review of the Indian Yoga Scriptures and Scientific Studies.
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+ Social and Education History 5(1), 83-104. doi:10.17583/hse.2016.1859
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+
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+ To link this article: http://dx.doi.org/10.17583/hse.2016.1859
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+
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+
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+ PLEASE SCROLL DOWN FOR ARTICLE
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+
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+ The terms and conditions of use are related to the Open Journal System and
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+ to Creative Commons Attribution License (CC-BY).
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+ HSE – Social and Education History Vol. 5 No. 1 February 2016 pp.
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+ 83-104
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+
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+
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+
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+ 2016 Hipatia Press
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+ ISSN: 2014-3567
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+ DOI: 10.17583/hse.2016.1859
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+
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+ Effect of Yoga on Human Aggression and
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+ Violent Behaviour – A Review of the Indian
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+ Yoga Scriptures and Scientific Studies
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+
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+ A.G. Govindaraja Setty
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+ Swami Vivekananda Yoga
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+ University (India)
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+
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+ Pailoor Subramanya
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+ Swami Vivekananda Yoga
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+ University (India)
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+ B. Mahadevan
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+
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+
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+
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+
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+
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+ Indian Institute of Management, Bangalore (India)
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+
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+ Abstract
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+ ______________________________________________________________
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+ Among the deviant human behaviors, aggression appears to be the most prevalent and
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+ disturbing one, affecting one and all. Uncontrolled aggression/violent behavior could
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+ cause a significant toll, equally affecting both involved and the non-involved. This
63
+ delinquent human behavior has been well addressed in Indian yogic scriptures. It
64
+ provides a theoretical framework to understand the causes, ill-effects, need for peace,
65
+ harmony, and ways to correct the aggression behavior. It is also claimed that yoga is a
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+ way for inner bliss and external coherence; and with this time-tested technique, it is
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+ possible to bring about a sense of inner peace and emotional stability, thus having
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+ potential to correct aggressive behaviors. This review paper also brings out the studies
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+ made to find out effect of yoga on human aggression/violent behavior.
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+ _______________________________________________________________
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+ Keywords: Yoga, aggression, violence, violent behaviour
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+ HSE – Social and Education History Vol. 5 No. 1 February 2016 pp.
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+ 83-104
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+
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+
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+
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+ 2016 Hipatia Press
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+ ISSN: 2014-3567
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+ DOI: 10.17583/hse.2016.1859
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+
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+ El Efecto del Yoga en la Agresividad
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+ Humana y en el Comportamiento Violento
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+ – Una Revisiónde las Escrituras Indias de
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+ Yoga y Estudios Científicos
85
+
86
+ A.G. Govindaraja Setty
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+ Swami Vivekananda Yoga
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+ University, Bangalore (India)
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+
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+ Pailoor Subramanya
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+ Swami Vivekananda Yoga
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+ University, Bangalore (India)
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+ B. Mahadevan
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+
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+
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+
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+
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+
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+ Indian Institute of Management, Bangalore (India)
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+
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+ Resumen
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+ _____________________________________________________________
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+ Entre las conductas humanas desviadas, la agresión aparece como una de las más
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+ frecuentes y alarmantes, afectando a todas las personas sin excepción. La conducta
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+ agresiva/violenta incontrolada puede causar graves consecuencias, afectando tanto a las
106
+ personas directamente implicadas como a las no implicadas. Este comportamiento
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+ humano delictivo ha sido abordado con profundidad en las escrituras indias yóguicas.
108
+ Ello aporta un marco teórico para entender las causas, efectos nocivos, la necesidad de
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+ paz, harmonía y las formas para corregir las conductas violentas. También se afirma que
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+ el yoga es una forma de alcanzar la paz interior y la coherencia exterior; y con esta
111
+ técnica probada en el tiempo es posible lograr un sentimiento de paz interna y de
112
+ estabilidad emocional, por lo que tiene potencial para corregir conductas agresivas. Esta
113
+ revisión bibliográfica pone de relieve los estudios llevados a cabo para identificar los
114
+ efectos del yoga en las conductas humanas agresivas/violentas.
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+ _______________________________________________________________
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+ Keywords: Yoga, agresión, violencia, comportamiento violento
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+ HSE – Social and Education History, 4(3) 85
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+
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+
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+
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+ Among the deviant human behaviors, aggression and violence
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+ appear to be the most prevalent and highly disturbing, affecting one
123
+ and all in the society, hence considered a serious global health
124
+ problem (WHO, 2014). Some of the studies say that this aberrant
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+ behavior normally surfacing in childhood becomes habitual and continues at
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+ all age points of an individual and that in childhood it might lead to rejection
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+ from family as well from fellow children, relational tribulations leading to
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+ isolation during adolescence and criminal, illegal or unlawful behavior in
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+ adulthood (Huesmann & Guerra, 1997) and the whole society looks down at
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+ such an individual. Further, it could affect both the involved and the non-
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+ involved; and unchecked aggression and violence exact a significant toll on
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+ human societies.
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+ Though normally men score slightly higher on aggression, this deviant
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+ attitude is not gender-sensitive. Significant correlates of interpersonal
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+ violence were found in younger age. Intensity of aggression is directly
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+ attributable to one’s amount of frustration. Though aggressive behaviors
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+ evolved as adaptations to deal with competition, they can have destructive
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+ consequences. Family members have been the object of violence in more
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+ than 50% of cases (Kumar, Akhtar, Roy & Baruah, 1999). Worldwide, mass
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+ media reports, a number of violent acts affecting one and all, that are neither
141
+ country specific (Miron, 2001) nor religion specific (Cobban, 2005) and
142
+ world over findings regarding violence-related behaviors are remarkably
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+ similar. The economic cost associated with violence-related injuries,
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+ disabilities, and premature deaths is estimated to be in billions of dollars.
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+ The gravity of the problem could be understood from the fact that 49 World
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+ Health Assembly Geneva, declared violence as leading global public health
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+ problem and urged members to assess the problem of violence in their
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+ territories; and convey details to WHA, besides clearly defining their
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+ approach to deal with it. Further, WHA requested the Director-General for
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+ public health to address the problem of violence, promote research on
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+ violence on priority and document them for the benefit of member nations.
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+ “Aggression” and “violence” are generic terms. Oxford dictionary
153
+ defines “aggression” as “feelings of anger or antipathy, readiness to attack or
154
+ confront, resulting in hostile or violent behavior”. WHO defines “Violence”
155
+ as “intentional use of physical force or power, threatened or actual, against
156
+ A
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+ 86 Govindaraja et al – Effect of Yoga on Human Aggression
158
+
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+
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+ oneself, another person, or against a group or community or section of
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+ people, which either results or has a high likelihood of resulting in injury,
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+ death, psychological harm, mal-development or deprivation”. “Violent
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+ behaviors” are latent perception variables towards violence, which are
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+ guided by one’s own value systems.
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+
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+ Aggression and Violence: Indian Scriptural Perspective
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+
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+ Aggression and violence have been well addressed in Indian scriptures
169
+ (Vedas, Upanishads, Bhagavad Gītā, Brahma Sutras, Yoga Sutras, and
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+ Bhakti (Devotion) Sutras), which are also considered as conventional yoga
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+ texts. This traditional literature provides a theoretical framework to
172
+ understand the aggression and violence in conventional background. In
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+ every Indian scripture, there is invariably a mention on aggression and
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+ violence, ill effects, ways to avoid, and need for harmony and coherence.
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+ These include teachings under ‘The doctrine of ahimsa’ (Rajapakse, 1988;
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+ Phillips, 2010). ‘Ahimsa’ means and includes avoiding any harm (physical,
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+ mental or emotional), to remain passive in any situation, without the desire
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+ to harm anyone (Muktibodhananda, 2004). Himsa is brought out by three
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+ ways namely, ‘violence done’, ‘violence got done’ and ‘violence sanctioned’
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+ (Adidevananda, 1998), wherein all the three bring endless agony. But when
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+ a person is firmly established in ahimsa, in his/her presence, even cruel
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+ persons renounce violence (Adidevananda, 1998). Indian yogic scriptures
183
+ recommend that personality of an individual gets nourished by a mix of both
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+ ‘relaxing’ and ‘stimulating’ practices by attaining a state of mental equipoise
185
+ (Telles & Reddy, 2000).
186
+ Prevalence of Aggression and Violent Behavior: Indian Scriptural
187
+ Perspective
188
+
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+ Indian scriptures answer the question, ‘does aggressive and violent behavior
190
+ indeed exist in us? If yes, in whom and in what ways?’‘Pretentiousness,
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+ arrogance, overweening pride, wrath, rudeness, aggression, scant regard for
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+ pain of others, insensitiveness to spiritual values are prevalent in those born
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+ to demoniac (Asuri) heritage’; whereas, non-violence, truthfulness, freedom
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+ HSE – Social and Education History, 4(3) 87
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+
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+
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+ from anger renunciation, tranquility, aversion to slander, compassion to
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+ living beings, sensitivity to the pain of others, empathy, freedom from
199
+ sensuality, gentleness, modesty, steadfastness, are the qualities present in
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+ those born to divine (Daivi) inheritance’ (Bhagavad Gītā 16.2,4)
201
+ (Tapasyānanda, 2003).
202
+
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+ Causes for Aggression and Violence, and Need to Address: Indian
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+ Scriptural Perspective
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+
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+ Indian scriptures clearly establish the causes for aggressive and violent
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+ behavior and assert that we have propensity to be violent. Causes could
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+ range from ‘sense objectivity, greed and illusion. Bhagavad Gītā (2.62) says,
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+ if one dwells longingly on sense objects, inclination towards them is
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+ generated; inclination develops into desire; desire begets anger, and finally
211
+ culminates in aggression. Bhāgavatam (4.8.3) says, hypocrisy and illusion
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+ beget greed and deceitfulness, they, in turn, beget aggression and violence.
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+ Insatiable lust, uncontrolled anger, born out of ‘rajas’ prompt men to engage
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+ in violence (Bhagavad Gītā 3.37). ‘Rajas’ is passion-based leading to
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+ craving for objective pleasures; and clinging to objects already possessed by
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+ an individual. Tamas is ignorance-born and produces delusion leading to
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+ negligence, indolence, scant regard for pain of others (Bhagavad Gītā 14.7-
218
+ 8). The children (derivatives) of aggression and violence are ‘hostility’ and
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+ ‘harsh abusive words’ (verbal aggression) (Velanakar, 2013).
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+ The gradual degradation of aggressive and violent personalities is also
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+ brought out by Indian yoga scriptures. Aggression generates delusion,
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+ delusion results in loss of memory, loss of memory brings about destruction
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+ of discriminative intelligence, and loss of discriminataive intelligence spells
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+ ruin to a man (Bhagavad Gītā 2.63).
225
+ Bhagavad Gītā (16.21) establishes in a pristine way that lust, aggression,
226
+ and greed lead to destruction of man’s spiritual nature. They form the
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+ gateway to hell; hence surely be abandoned (Tapasyānanda, 2003).
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+ Patañjali
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+ Yoga
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+ sūtra
231
+ (2.30)
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+ says,
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+ ahiṁsā
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+ (non-violence),
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+ satya
236
+ (truthfulness), asteya (non-stealing), brahmacharya (sexual self-restraint),
237
+ aparigraha (non-obsessively possessive) are five yamas (moral universal
238
+ commandments for self-control) (Prabhavananda, 2004). Patañjali Yoga
239
+ 88 Govindaraja et al – Effect of Yoga on Human Aggression
240
+
241
+
242
+ Sūtra (2.35) says, when a yogi is resolutely committed to non-violence, there
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+ is no hostility, wherever he is present (Prabhavananda, 2004). Manusmṛti
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+ (5.43) says a Brahmin of virtuous disposition, whether dwells in (own)
245
+ house, with a teacher or in the forest, must never, in times of distress, cause
246
+ injury to any creature, which is not sanctioned by Vedas. Bhāgavatam
247
+ (4.18.14) says, you will get the divine feet of Bhagavān Nṛsiṁha (one of the
248
+ ten incarnations of Lord Vishnu), only on your abandonment of desire,
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+ melancholy, aggression, pride, apprehension, and grief which are the causes
250
+ for vicious cycle of birth and death (Velanakar, 2013).
251
+
252
+ Addressing Aggression and Violent Behavior: Yoga Way
253
+
254
+ Practical lessons of Indian yogic scriptures could provide broad framework
255
+ and specific ways to fight against this delinquent behavior and answer the
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+ question, can we as human beings, bring about a paradigm shift in our
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+ personality by avoiding all these aggression and violent behavior. One of the
258
+ eighteen Indian mythologies, Bhāgavatam (1.18.22) says one who is in
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+ divine love with the Supreme Lord can make non-violence and peace one’s
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+ dharma and strive for the ultimate realization through dhyāna (Velanakar,
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+ 2013). The word ‘yoga’ implies non-duality, oneness with the Supreme
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+ Soul; and the very notional duality causes fear, anger, lust and therefore
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+ reaching oneness can address this delinquent behavior (Adidevananda,
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+ 1998). Violence is attributable to ignorance caused by pretentiousness,
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+ impatience, lack of straight-forwardness, abhorrence, lack of self-control,
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+ lack of devotion and scant regard for cleanliness (Bhagavad Gītā 13.7-11).
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+ Bhāgavatam (6.4.14) further says, a person can transcend ‘Triguṇas’
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+ (personality traits) by appeasing and controlling the teeming aggression by
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+ steady, indrawn, discriminating mind (Velanakar, 2013). Withdrawal of
270
+ mind is nothing but ‘prathyāhāra’ mentioned in ashtanga yoga texts.
271
+ According to yogic scriptures, early seers (spiritual masters or yogis or
272
+ prophets) of India devised and used yoga as a means to explore the external
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+ and internal realms; and to attain ultimate knowledge described in sacred
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+ Indian texts. These great masters or yogis prescribed yoga as a way of life to
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+ be in tune with the highest reality; and the importance is on individualized or
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+ one’s own confirmation and not merely on religious dogmas or doctrines.
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+ HSE – Social and Education History, 4(3) 89
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+
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+
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+ They preached that yoga is both a way for internal bliss and external
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+ coherence. "Yoga" is derived from a Sanskrit root word ‘Yuj’ (join), hence
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+ "yoga" means and includes, joining of the body, mind and the ‘Self’(soul)
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+ (Nagendra, 2000).
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+ Addressing violent and aggressive behavior through yoga has been
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+ suggested by many researchers on the ground that it is very effective and be
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+ documented to promote research on violence on the lines suggested by
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+ World Health Assembly, Geneva for the benefit of member States. Yoga is
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+ an ancient science, originating in India, which includes diverse practices like
289
+ physical postures (asana), regulated breathing (pranayama), meditation and
290
+ lectures on philosophical aspects of yoga. The ultimate aim of yoga is to
291
+ remain unperturbed in success or failure and perfection of the personality of
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+ its practitioner to remain equipoise in all conditions (Bhagavad Gītā 2.48).
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+ The yoga texts suggest that the solution lies in developing health and
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+ personality of the individuals brought out by a mix of both ‘relaxing’ and
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+ ‘stimulating’ practices which help in reaching a state of mental equipoise
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+ (Telles, Reddy, & Nagendra, 2000) and supports the view that combination
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+ of yoga postures interspersed with relaxation reduces arousal more than
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+ mere relaxation (Sarang & Telles, 2006).
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+ Asanas, which are physical movements, may give exercises to various
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+ organs and systems and provide them an avenue to deal with character,
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+ attitudes and tensions; can bring about healthy changes in several
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+ psychopathological conditions (Krishna Rao, 2000). When yoga induced
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+ non-violence in speech, thought and action is established, one’s aggressive
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+ nature is relinquished; others abandon hostility in such a yogi’s presence
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+ (Iyengar, 1993). Swami Vivekananda says, ‘the test of ahimsa is absence of
306
+ jealousy’ (Prabhavananda, 2004). Generosity, acceptance, patience, freedom
307
+ from self-importance, unpretending, ahimsa (non-violence), self-control and
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+ straight-forwardness are the divine qualities one can nourish through yoga
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+ (Bhagavad Gītā 13.7-11).
310
+ Yoga is an ancient science and an art and a way of life, aimed at
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+ harmonious system of developing the body, mind and spirit. The Indian
312
+ scriptures claim that yoga, with its powerful, time-tested techniques, can
313
+ bring about a sense of inner peace, which can culminate in emotional
314
+ stability, harmony and clarity of mind (Nagendra, 2000). Bhagavad Gītā
315
+ 90 Govindaraja et al – Effect of Yoga on Human Aggression
316
+
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+
318
+ defines yoga as ‘samatvam yoga ucyate’, - ‘always being in a state of
319
+ unperturbed evenness’. Patañjali, who is quoted widely in yoga researches,
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+ defines yoga as ‘Yogahcittavrittinirodah’, i.e., ‘Yoga is the cessation of
321
+ movements in consciousness’ which can lead to complete mastery over
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+ mind. Sage Vasistha, (‘Yoga Vasistha’) defines yoga as a technique to slow
323
+ down or calm down the mind through deep internal awareness (Nagarathna
324
+ & Nagendra, 2003).
325
+ Thus, in its attempts to achieve these results, yoga offers varied
326
+ techniques like asanas (bodily postures), pranayama (regulated breathing),
327
+ and dhyāna (meditation) coupled with swadhyāya (sermons of philosophical
328
+ aspects of yoga). Violent/aggressive individuals normally do not respond or
329
+ react to oral methods only; instead, they are to be addressed through
330
+ psychodynamic psychotherapies like yoga, martial arts, out-door games
331
+ (Twemlow, Sacco, & Fonagy, 2008).
332
+ The way yoga leads to reduction of aggression is understandable: anger,
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+ aggression and violence are said to be unrestrained speed in one’s mind
334
+ (Nagarathna & Nagendra, 2003) whereas, yoga is the art of slowing down
335
+ the mind, so that one has time to think and act. This modification is owing to
336
+ increased clarity of thoughts, calmness, serenity, and control over emotions,
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+ carving out a happy living. The norms prescribed by Indian scriptures for
338
+ yogic life are characterized by peace, tranquility, harmony, love, happiness,
339
+ and efficiency, driven by discrimination, right thinking, right understanding,
340
+ and calculated actions.
341
+
342
+ Causes as per Research Studies; Aggression Theories
343
+
344
+ Research says there is no single cause for human aggression and violence. It
345
+ ranges from factors like racism (Rogers & Prentice-Dunn, 1981), religious
346
+ intolerance (Corrigan & Neal, 2010), sex-induced (Gurvinder & Dinesh,
347
+ 2013), media influence (Gentile, Coyne, & Walsh, 2011), violent video
348
+ games (Adachi & Willoughby, 2011), prolonged television viewing
349
+ (Mitrofan, Paul, & Spencer, 2009), low self-esteem (Bushman &
350
+ Baumeister, 1998), food insecurity (Brinkman & Hendrix, 2011).
351
+ Aggression theories offer broader framework for these causes. Among
352
+ conventional theories, instinct theory (Sigmund Freud) says, aggression is
353
+ HSE – Social and Education History, 4(3) 91
354
+
355
+
356
+ because of release of dammed up energy. For instance, hunting and fighting
357
+ instincts are found in frustrated ones. When aroused, they over-ride other
358
+ instincts like sympathy, paternal instinct and become expressive through
359
+ aggression and violence. Sigmund Freud calls these instinctive drives as
360
+ ‘libido’, which are nothing but energy derived from Eros (life instinct) (Eron
361
+ & Huesmann, 1994).
362
+ Dollard and his associates (Yale University), offered ‘frustration and
363
+ aggression’ theory. When a person is frustrated, when his/her desires or
364
+ wishes are let down, he/she responds aggressively. Thus, frustration always
365
+ presupposes aggression (Dollard & Miller, 1939).
366
+ Theory of hormones and chromosomes got popularity from 1920’s.
367
+ Discovery of human chromosomes led to research linking excessive male
368
+ aggression with the presence of extra Y chromosome. Some researchers
369
+ suggest that Y chromosome is the cause for aggression; and doubling Y
370
+ chromosome doubles one’s aggression and violent behavior (Jarvik, Klodin,
371
+ & Matsuyama, 1973).
372
+ Among the recent theories, cognitive neoassociation theory suggests that
373
+ incidents involving aversion lead to negative affect (Berkowitz, 2012).
374
+ These in turn stimulate expressions, thought process, memories, and
375
+ response patterns like fight and flight. These fight and flight patterns give
376
+ way to reactions like anger and fear respectively.
377
+ Social learning theory proposes that aggressive responses are acquired in
378
+ similar ways, the people learn other intricate forms of social behaviors by
379
+ way of direct experience or by learning from others (Bandura, 1978).
380
+ ‘Script theory’ says that ‘scripts’ are situation-guided ‘stored-up
381
+ behaviors’ (Huesmann, 1998). These stored up scripts could be retrieved
382
+ later and may guide the behavior of an individual. This explanation of script
383
+ theory is comparable to what yoga scriptures pronounce: consciousness has
384
+ four faculties. First is the mind (manas - receiving faculty). Being non-
385
+ judgmental, it keeps receiving the knowledge through senses, good or bad.
386
+ Such knowledge is passed on to next faculty - buddhi (intellect -
387
+ discriminating faculty). It qualifies the knowledge as good or bad, negative
388
+ or positive. Such qualified knowledge is passed on to third faculty namely
389
+ ‘ahankara’ (ego). This faculty may choose to retain either the positive or
390
+ negative knowledge and reject the other. Having retained one of these two, it
391
+ 92 Govindaraja et al – Effect of Yoga on Human Aggression
392
+
393
+
394
+ becomes part of the knowledge retained. Further, this retained knowledge is
395
+ passed on to the next faculty namely ‘chitta’ which ‘stores’ the knowledge
396
+ for future retrieval.
397
+ Excitation transfer theory proposes ‘transfer of arousal’. When two
398
+ disturbing events are disconnected by a short time period, arousal from first
399
+ event is erroneously attributed to second and the person wrongly behaves
400
+ aggressively to the second event (Bryant & Miron, 2003).
401
+ Social interaction theory advocates aggression as a function of social
402
+ influence (Felson & Tedeschi, 1993). For example, coercion is employed to
403
+ get something valuable, or to cause an intended change or outcome.
404
+
405
+ Studies on Effect of Yoga on Aggression and Violent Behavior
406
+
407
+ Earlier research studies on effect of yoga on human aggression and violent
408
+ behavior have considered varied sample sizes, intervention periods, diverse
409
+ age groups of both sexes, varied ethnic groups, nationality, on different
410
+ forms of aggression and violence (physical, verbal, covert), on normal as
411
+ well as high-risk individuals. With all this diversity, the outcomes appear to
412
+ be remarkably similar and encouraging. Even the Indian yoga scriptures do
413
+ not limit or prohibit the application of yoga to any particular age category,
414
+ gender or personality type and hence the scope is very wide as for as the
415
+ application is considered.
416
+
417
+
418
+ Studies on Effect of Yoga on Aggression and Violent Behavior of At-
419
+ Risk-Youth
420
+
421
+ Aggression that manifests in childhood could lead to rejection from fellow
422
+ children in childhood, relational problems during adolescence and criminal
423
+ behavior in adulthood (Guerra, Rowell Huesmann, & Spindler, 2003).
424
+ Hence, it is desirable for the parents, elders and teachers to identify this
425
+ delinquent behavior at the earliest. In a pre and post quasi-experimental
426
+ control group design, 49 students (females 54.4%) in 9th to 12th grades of
427
+ school for at-risk youth, California, participated. The participants were
428
+ academically heterogeneous, 33.3% black, 33.3% Hispanic, 4.3% Native
429
+ HSE – Social and Education History, 4(3) 93
430
+
431
+
432
+ American, 6.2% Asian, 2.1% white and 20.8% mixed races. The youth were
433
+ characterized by risk factors like aggression, academic failure, poor grades,
434
+ high truancy, repeated suspension and expulsion. Transformative life skills
435
+ (TLS – which includes asanas, pranayama and meditation) were taught by
436
+ certified yoga teachers for 3-4 days a week in the first semester for 30
437
+ minutes per day. Yoga practitioners demonstrated significant decrease in
438
+ nervousness, depression, psychological anguish, intrusive views, physical
439
+ provocation, emotional stimulation; and significantly less likely to approve
440
+ revenge and overall less aggression, suggesting possibility for yoga-based
441
+ wellness program and TLS to favorably influence emotions among high-risk
442
+ youth (Frank, Bose, & Schrobenhauser-Clonan, 2014).
443
+ As a part of countrywide violence prevention effort, Niroga Institute
444
+ conducted transformative life skills (TLS) program (yogasanas, pranayama,
445
+ and meditation), daily 60 minutes for 18 weeks involving 472 students from
446
+ Alameda County Juvenile Justice Center. In another group 85 students
447
+ participated in control group, which did not get the TLS. Additionally, a
448
+ condensed 15 minutes TLS program was done in a large urban public high
449
+ school. The yoga intervention was by certified yoga teachers. The scales
450
+ used were perceived stress scale (PSS-10) and Tangney’s self-control scale-
451
+ 13. At the end of the study period ‘at-risk-imprisoned adolescents’ reported
452
+ lessened perceived stress and escalated self-control and self-awareness. They
453
+ showed statistically significant improvement in stress resilience, self-control,
454
+ and self-awareness. PSS reduced by a mean change of 1.31; self-control
455
+ improved by a mean change of 1.68 (Ramadoss & Bose, 2010). Thus, these
456
+ two studies are suggestive of feasibility of yoga intervention to youth with
457
+ known background of risk factors like aggression, academic poor
458
+ performance.
459
+
460
+ Studies on Effect of Yoga on Verbal Aggression
461
+
462
+ Being one of the aggression expressions, ‘verbal aggression’ is use of
463
+ abusive words to insult/hurt another person. In one of the studies, effect of
464
+ yoga on verbal aggressiveness in 173 normal healthy adults was studied (age
465
+ 17 - 62 years). Yoga group practiced integrated yoga module and control
466
+ group practiced moderate physical exercises for one hour a day, six days a
467
+ 94 Govindaraja et al – Effect of Yoga on Human Aggression
468
+
469
+
470
+ week, for eight weeks. Self-administered verbal aggressive scale was used.
471
+ Significant reduction in verbal aggression in yoga group (P = 0.0) and non-
472
+ significant upsurge in control group was reported (Deshpande, Nagendra, &
473
+ Raghuram, 2008b). The aggression or violent behavior could manifest in any
474
+ of the three kinds namely, verbal, physical or covert. Irrespective of the kind
475
+ of aggression that manifests in an individual, yoga could offer a positive and
476
+ a constructive change.
477
+
478
+ Studies of Effect of Yoga on Perceived Well-Being
479
+
480
+ Yoga could be a preventive intervention and a way for improving children's
481
+ perceived well-being, which Berger studied as outcome measures. Pilot
482
+ study compared fourth and fifth-grade students. One program was offered
483
+ yoga for one hour a week for 12 weeks; other program was not offered yoga.
484
+ Outcome measures were emotional well-being assessed by Harter’s global
485
+ self-worth and physical appearance subscales; physical well-being was
486
+ assessed by flexibility and balance. Yoga group showed less negative
487
+ conduct scores and heightened comfort (Berger, Silver, & Stein, 2009). Thus
488
+ the outcomes suggest that yoga, besides being a way for refining
489
+ adolescents’ perceived well-being, can also be a preventive intervention.
490
+
491
+
492
+ Studies on Effect of Yoga on Correlates of Aggression and Violent
493
+ Behavior
494
+
495
+ Some of the reports suggests that high levels of nervousness and aggression
496
+ do affect parameters like grip strength, dexterity scores and optical illusion.
497
+ In order to study these correlates a study was done, wherein, in the age range
498
+ 12 to 16 years, equal number of subjects were there in each of the three
499
+ groups namely, community home girls trained in yoga for a period of six
500
+ months, community home girls who practiced physical exercises and girls
501
+ who attended their regular schools. Degree of optical illusion was
502
+ significantly higher in physical exercises group when compared to yoga
503
+ group and regular school group. Hand grip was significantly less in physical
504
+ exercises group compared to yoga group (Raghuraj & Telles, 1997). The
505
+ HSE – Social and Education History, 4(3) 95
506
+
507
+
508
+ improved performance of the yoga group compared to physical activity
509
+ group suggests that yoga practice has a beneficial effect on these parameters,
510
+ which are considered to be the derivatives of aggression and violent
511
+ behaviors.
512
+
513
+ Studies on Effect of Yoga on Personality Traits (Gunas as per Bhagavad
514
+ Gītā)
515
+
516
+ A person with calmness, purity, without pride and self-importance, having
517
+ concern for others’ pain, is ‘sattvik’. A person with passions, cruelty, impure
518
+ at heart and is subject to elation and depression in success and failure, is
519
+ ‘rajasic’. A person with unsteadiness, offensive, ego, deceitful, malevolent,
520
+ procrastination, and indolence is ‘tamasic’ (Bhagavad Gītā 18.26-28). In one
521
+ of the studies self-administered "Bhagavad Gītā Personality Inventory” was
522
+ used to measure these Gunas. In the age group of 18 to 71, 226 subjects of
523
+ both sexes participated. The yoga group practiced integrated yoga module
524
+ and control group practiced physical exercises daily one hour, six days a
525
+ week, for eight weeks. The outcomes demonstrated that the baseline scores
526
+ for all areas for both groups did not differ considerably. There were
527
+ noteworthy improvements in all domains in both groups. However, the
528
+ number of persons who showed progress in Sattva and decline in Tamas was
529
+ substantial in yoga group (Deshpande, Nagendra, & Nagarathna, 2009;
530
+ Deshpande, Nagendra, & Raghuram, 2008a). Thus, evidencing that yoga
531
+ could be a helpful tool in bringing out positive changes in personality traits,
532
+ irrespective of the age and gender.
533
+
534
+ Studies on Effect of Yoga on Predictors of Aggression
535
+
536
+ Variables like empathy, emotional quotient, general well being, and beliefs
537
+ about aggression are found to be good predictors of aggression levels. When
538
+ these variables are addressed through yoga, effect could be found in
539
+ aggression level as a correlate. A pre-post yoga intervention study measured
540
+ persistent attention, emotive intelligence (EQ), general wellbeing through
541
+ general health questionnaire, and Guna personality –sattva (purity), rajas
542
+ (craving) and tamas (brutality). Control group was not there. In the age
543
+ 96 Govindaraja et al – Effect of Yoga on Human Aggression
544
+
545
+
546
+ group of 17 to 63 years 108 subjects participated. Yoga practitioners
547
+ demonstrated substantial changes in all variables (P < 0.001) excepting
548
+ ‘sattva’. EQ and overall health variables compare considerably with each
549
+ other and negatively with tamas. EQ and tamas form positive and negative
550
+ forecasters of health. Sattva correlates positively with EQ signifying that a
551
+ sattvic personality demonstrates improved self-control. This recommends
552
+ that yoga practice may improve guna personality (traits) and can stabilize
553
+ EQ (Khemka, Hankey, & Ramarao, 2011).
554
+
555
+ Studies on Effect of Yoga on Cognitive Functions
556
+
557
+ When a person longingly dwells on sense objects, gradually preference
558
+ towards them develops. This preference develops desire; desire produces
559
+ anger and aggression. Aggression brings about delusion, and delusion leads
560
+ to loss of memory. Loss of memory culminates in destruction of
561
+ discriminative intelligence, which in turn, brings about complete devastation
562
+ to the person (Bhagavad Gītā 2.62-63). Thus, aggression and violent
563
+ behavior affect the cognitive functions like thinking, memory, analyzing,
564
+ perception and judgment. In one of the studies, effect of yoga on cognitive
565
+ functions and attitude towards violence (ATV) in 100 rural school children,
566
+ aged 13-15 years, of both sexes, in 8th and 9th grades was studied. The
567
+ subjects were divided into yoga and control groups. The yoga group
568
+ practiced yoga for one hour a day for 10 days and control group practiced
569
+ physical exercises. Digit letter substitution test was used to measure
570
+ cognitive function, whereas ATV scale was used to measure attitude towards
571
+ violence. The outcomes showed significant change in cognitive functions,
572
+ 42% and 24% mean change in yoga and control groups respectively. But
573
+ there were no noteworthy results in ATV, 3% and 12.8% mean change in
574
+ yoga and control group respectively. However, yoga group experienced
575
+ other benefits like increased flexibility, improved digestion, good sleep,
576
+ relaxation and were cooperative with teachers/parents (Reddy, 2015).
577
+ Adolescence is the age when the aggression is at its peak and if
578
+ uncorrected, it could manifest at all age points of an individual, say research
579
+ studies. A study was done to find out the effect of yogic practices like
580
+ Suryanamaskara and pranayama on 30 adolescents’ logical memory,
581
+ HSE – Social and Education History, 4(3) 97
582
+
583
+
584
+ aggression and anxiety levels. The yoga intervention was given for a period
585
+ of 25 days and the outcomes measured were logical memory, anxiety and
586
+ aggression levels by aggression scale. The Result showed statistically
587
+ significant decrease in post anxiety and aggression levels and improved
588
+ logical memory of participants (Singh, 2015).
589
+ In another study, yoga practitioners outdid physical exercise practitioners
590
+ on variables like trait anxiety, somatic anxiety, cognitive anxiety, aggression
591
+ and achievement impetus (Vengatesh, 2014).
592
+
593
+ Studies on Effect of Yoga on Somatic Grievances of Women and Girls
594
+
595
+ A study on physiological and psychological effects of hatha-yoga in healthy
596
+ women showed no considerable changes between the clusters regarding
597
+ endocrine parameters and BP. The yoga group had substantial reduction of
598
+ heart rate all through the yoga practice. The study accounted for substantial
599
+ variances between groups in psychological parameters. Yoga group
600
+ displayed distinctly higher scores in life fulfillment, morale, extravertedness,
601
+ lower scores in nervousness and aggression, frankness, emotionality and
602
+ somatic grievances. Substantial dissimilarities could be witnessed
603
+ concerning handling of stress and temperament (Schell, Allolio, &
604
+ Schonecke, 1994). The study suggests that the derivatives of high levels of
605
+ aggression and violent behavior like hypertension and high heart rate do get
606
+ improved with the intervention of yoga.
607
+
608
+ Conclusion
609
+
610
+ It is evident from various research studies that yoga intervention on subjects
611
+ of varied age, ethnicity, and nationality have shown remarkably similar
612
+ results and findings are quite encouraging to deal with the problem of
613
+ aggression through yoga. Researches on aggression and violence have
614
+ progressed to a stage where a unifying construction is needed in the sense
615
+ that different kinds of interventions (yoga, Transformative life skills,
616
+ counseling, addressing predictors of aggression and violent behavior) can be
617
+ blended to be more effective in addressing this delinquent human behavior.
618
+ Further, there is a need for standardizing the yogic intervention module and
619
+ 98 Govindaraja et al – Effect of Yoga on Human Aggression
620
+
621
+
622
+ period of intervention, so that this delinquent human behavior is addressed
623
+ effectively and the results could be more evident. It also helps to
624
+ scientifically establish the basis for transformation claimed by Indian yoga
625
+ scriptures. Man is a social being. Sociability, that is one’s ability to cordially
626
+ blend with the fellow beings in the societal structure, is one of the important
627
+ facets of health according to World Health Organization. Indian yoga
628
+ scriptures deal extensively with this subject. There is a need to use this
629
+ ancient wisdom, claimed by Indian scriptures. This would provide a new and
630
+ effective framework to deal with the problem of human aggression and
631
+ violent behavior. Research is scarce particularly concerning the effects of
632
+ yoga on domains like human beliefs and attitude towards aggression and
633
+ violence, normative beliefs supporting aggression, perception towards
634
+ alternatives for violent methods normally adopted by aggressors, and
635
+ perceptions towards social norms for aggression and alternatives.
636
+ The yoga scriptures (including scientific researches) claim that
637
+ irrespective of the age, this ancient science of yoga can be taught. The
638
+ detailed yoga protocol intervention to suit different age groups can be well
639
+ defined and standardized and the results can be documented for the benefit
640
+ of all, which helps in understanding the methods researched to be effective
641
+ in correcting aggressive and violent behavior, and understanding the nature,
642
+ causes,
643
+ contributive
644
+ factors,
645
+ neuro-psychological
646
+ changes,
647
+ gender
648
+ differences, forms of aggression (latent and manifest), relationship between
649
+ select behavioral-characteristics as predictors of aggression. This could be
650
+ one of the valuable, cost effective, alternative (or complementary) methods
651
+ that involve no drugs and no invasive treatments to correct this delinquent
652
+ human behavior.
653
+ Excepting the theory of hormones and chromosomes, most of the
654
+ aggression theories deal only with the mind as the root instrumental cause
655
+ for aggression and violent behavior. Yoga deals comprehensively with this
656
+ subject. Hence there is a need for the researchers to look at this ancient, time
657
+ tested method advocated by Indian yogic scriptures.
658
+
659
+
660
+
661
+
662
+ HSE – Social and Education History, 4(3) 99
663
+
664
+
665
+ References
666
+ Adachi, P. J. C., & Willoughby, T. (2011). The effect of violent video games
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669
+ Adidevananda, S. (1998). Patanjala Yogadarshana - Vyasabhashya sahita
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+ (4th print.). Mysore: Sri Ramakrishna Math.
671
+ Bandura, A. (1978). Social learning theory of aggression. Journal of
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+ Communication, 28, 12–29. doi:10.1111/j.1460-2466.1978.tb01621.x
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+ Berger, D. L., Silver, E. J., & Stein, R. E. K. (2009). Effects of yoga on
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+ Telles, S., Reddy, S. K., & Nagendra, H. R. (2000). Oxygen consumption
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+ Gorakhpur.
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+ Vengatesh P, K. P. (2014). Relative effect of physical exercises and yogic
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+ practices on anxiety aggression and achievement motivation levels of
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845
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+ A.G. Govindaraja Setty, Phd Scholar. Swami Vivekanda Yoga
850
+ University, India. Orcid: http://orcid.org/0000-0002-3621-8699
851
+ Pailoor Subramanya, Assistant Director - Research & Head-PhD. Swami
852
+ Vivekanda Yoga University, India.
853
+ B. Mahadevan, Professor, Indian Institute of Management, Bangalore,
854
+ India
855
+ Contact Address: Swami Vivekananda Yoga University (SVYASA)
856
+ #19, Eknath Bhavan, Gavipuram Circle, K.G.Nagar
857
+ Bangalore – 560019, Karnataka, India.
858
+ E-Mail: [email protected]
859
+
860
+
subfolder_0/Effect of yoga on cognitive functions in climacteric.txt ADDED
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1
+ Effect of yoga on cognitive functions in climacteric
2
+ syndrome: a randomised control study
3
+ R Chattha,a R Nagarathna,b V Padmalatha,c HR Nagendrad
4
+ a Division of Yoga and Life Sciences Swami Vivekananda Yoga Anusandhana Samsthana (SVYASA), Bangalore, India b Division of Yoga
5
+ and Life Sciences, SVYASA, Bangalore, India c Maiya Multispeciality Hospital, Bangalore, India d SVYASA, Bangalore, India
6
+ Correspondence: Dr V Padmalatha, FRCOG (Lon), MRCP (Ire), Consultant Obstetrician and Gynecologist, Maiya Multispeciality Hospital,
7
+ Bangalore, India. Email [email protected]
8
+ Accepted 13 March 2008. Published OnlineEarly 23 May 2008.
9
+ Objective To assess the efficacy of an integrated approach of yoga
10
+ therapy (IAYT) on cognitive abilities in climacteric syndrome.
11
+ Design A randomised control study wherein the participants were
12
+ divided into experimental and control groups.
13
+ Settings Fourteen centres of Swami Vivekananda Yoga Research
14
+ Foundation, Bangalore, India.
15
+ Sample One hundred and eight perimenopausal women between
16
+ 40 and 55 years with follicle-stimulating hormone level equal to or
17
+ greater than 15 miu/ml. One hundred and twenty perimenopausal
18
+ women were randomly allotted into the yoga and the control
19
+ groups.
20
+ Methods The yoga group practised a module comprising
21
+ breathing practices, sun salutation and cyclic meditation, whereas
22
+ the control group practised a set of simple physical exercises,
23
+ under supervision (1 hour/day, 5 days/week for 8 weeks).
24
+ Main outcome measures Assessments were made by vasomotor
25
+ symptom checklist, six-letter cancellation test (SLCT) for attention
26
+ and concentration and Punit Govil Intelligence Memory Scale
27
+ (PGIMS) with ten subtests.
28
+ Results The Wilcoxon test showed significant (P < 0.001)
29
+ reduction in hot flushes, night sweats and sleep disturbance in
30
+ yoga group, with a trend of significant difference between groups
31
+ at P = 0.06 on Mann–Whitney test in night sweats. There was no
32
+ change within or between groups in the control group. The SLCT
33
+ score and the PGIMS showed significant improvement in eight of
34
+ ten subtests in the yoga group and six of ten subtests in the control
35
+ group. The yoga group performed significantly better (P < 0.001)
36
+ with higher effect sizes in SLCT and seven tests of PGIMS
37
+ compared with the control group.
38
+ Conclusions Integrated approach of yoga therapy can improve hot
39
+ flushes and night sweats. It also can improve cognitive functions
40
+ such as remote memory, mental balance, attention and
41
+ concentration, delayed and immediate recall, verbal retention and
42
+ recognition tests.
43
+ Keywords Climacteric, cognitive abilities, yoga.
44
+ Please cite this paper as: Chattha R, Nagarathna R, Padmalatha V, Nagendra H. Effect of yoga on cognitive functions in climacteric syndrome: a randomised
45
+ control study. BJOG 2008;115:991–1000.
46
+ Introduction
47
+ Climacteric is a physiologic transition characterised by deple-
48
+ tion of the ovarian follicles, decreasing estradiol and inhibin
49
+ production, leading to an increase in follicle-stimulating hor-
50
+ mone (FSH), loss of menstrual cycle, accompanied by men-
51
+ opausal symptoms.1 Because the average life span of women
52
+ in India has touched 62 years, the problems of menopause
53
+ have attained a greater attention.2 Altered levels of neurotro-
54
+ phic ovarian steroid (17beta-estradiol) have been recognised
55
+ as one of the factors influencing degenerative processes that
56
+ lead to ageing.3 Senescence is characterised neurologically by
57
+ a decline in cognitive function.4 Cognitive decline during
58
+ ageing is seen in memory abilities,5 focusing, attention6,7
59
+ and information processing.8 Numerous studies indicate that
60
+ estrogen is essential for optimal brain function. Estrogens
61
+ have been reported to influence verbal fluency, verbal mem-
62
+ ory tests and performance on spatial tasks and fine motor
63
+ skills.9–12 This decline is the result of degenerative processes
64
+ initiated by dysregulation of the hypothalamic–pituitary–
65
+ gonadal (HPG) axis with menopause and andropause that
66
+ leads to alterations in the concentration of all serum HPG
67
+ hormones. Estrogen is known to enhance the activity at neu-
68
+ ronal synapses, thus exerting its direct neuroprotective and
69
+ neurotrophic effects on brain tissue, by maintaining the integ-
70
+ rity of the nigral-dopamine system.13 These dopamine-
71
+ producing neurons that are involved in cognitive functions
72
+ start dying when estrogen levels are low.14 The protective effect
73
+ ª 2008 Swami Vivekananda Yoga Anusandhana Samsthana Journal compilation ª RCOG 2008 BJOG An International Journal of Obstetrics and Gynaecology
74
+ 991
75
+ DOI: 10.1111/j.1471-0528.2008.01749.x
76
+ www.blackwellpublishing.com/bjog
77
+ Menopause
78
+ of estrogens on neuronal cells may also be due to their ability
79
+ to alter free radical production and/or free radical action on
80
+ cells.15 It has been shown that estrogen deprivation is likely to
81
+ initiate or enhance degenerative changes caused by oxidative
82
+ stress and to reduce the brain’s ability to maintain synaptic
83
+ connectivity and cholinergic integrity leading to the cognitive
84
+ decline seen in aged individuals.16
85
+ The hippocampus has long been presumed the primary site
86
+ of action of estrogens on cognition; and explicit memory is
87
+ considered the cognitive function most vulnerable to meno-
88
+ pausal loss of estrogen. Keenan et al. hypothesised that the
89
+ prefrontal cortex and its neural circuitry are prime mediators
90
+ of estrogen’s role in cognition. The prefrontal cortex is critical
91
+ for intact working memory, and estrogen enhances perfor-
92
+ mance on working memory tasks.17 Neuroimaging techniques
93
+ like positron emission tomography and magnetic resonance
94
+ imaging proved that estrogen-induced increase in cerebral
95
+ blood flow were particularly noticed in the hippocampus,
96
+ para hippocampus, gyrus and temporal regions, which are
97
+ a part of memory circuit.18 Murphy et al.19 reported that
98
+ age-related loss of brain tissue in hippocampus and parietal
99
+ lobes was significantly greater in women than in men. Thus,
100
+ estrogen strongly influences mood and cognition, and the
101
+ decline of this hormone at menopause can produce signifi-
102
+ cant emotional and cognitive problems in women.9
103
+ No doubt hormone replacement therapy (HRT) reverts the
104
+ cognitive, vasomotor and psychological impairments and is
105
+ cardio-protective, but holds a risk of cancer of endometrium
106
+ and breast, as well as three-fold risk of venous thromboem-
107
+ bolism.20 Due to these serious adverse effects of HRT, there
108
+ has been a gap in the management of menopausal symptoms
109
+ emphasising the need to develop and explore the efficacy
110
+ of alternative therapeutic avenues that have demonstrated
111
+ promise in alleviating menopausal symptoms since 2006.21
112
+ Cognitive-behavioural intervention was shown to be effective
113
+ in treating anxiety, depression, hot flushes and cardiac com-
114
+ plaints, improving partnership relations and overall score of
115
+ sexuality in a pilot study on 30 women with climacteric syn-
116
+ drome.22 There are very few studies on yoga treating used for
117
+ climacteric syndrome. There are several studies (two pilot
118
+ studies and one three-armed study) that shows that yoga im-
119
+ proves the menopausal symptoms,23–25 but there are no stud-
120
+ ies on the effect of yoga on cognitive functions in climacteric.
121
+ Yoga is an ancient Indian science and way of life that
122
+ includes the practice of specific postures, regulated breathing
123
+ and meditation.26 Yogasanas and pranayamas are today rec-
124
+ ognised as techniques that can improve muscle strength,
125
+ flexibility, blood circulation and oxygen uptake as well as
126
+ hormone functions27 at the gross level. Meditation (intrinsic
127
+ yoga techniques called Dharana, Dhyana and Samadhi) has
128
+ been described as training in awareness, produces definite
129
+ changes in perception, attention and cognition.28 It has been
130
+ shown that processing of sensory information at the thalamic
131
+ level is facilitated during the practice of pranayama (breathing
132
+ exercises)29 and meditation.30 Integrated approach of yoga
133
+ that combines physical postures, pranayama and meditation
134
+ together with the notional correction based on philosophy of
135
+ yoga was found to improve both cognitive (visual perception)
136
+ and motor functions (hand steadiness)31 in college students
137
+ following 10 days of yoga practice. This improvement was
138
+ believed to be due to improved eye hand coordination, atten-
139
+ tion, concentration and relaxation. With these promising
140
+ benefits of yoga, we could hypothesise that yoga may decrease
141
+ the cognitive dysfunction and the clinical symptoms of
142
+ climacteric.
143
+ Thus, the aim of the study was to assess the efficacy of the
144
+ integrated approach of yoga therapy (IAYT) on cognitive
145
+ functions in perimenopausal women.
146
+ Methods
147
+ Participants
148
+ The sample size was calculated from an earlier study that
149
+ compared the effect of two different drugs in menopausal
150
+ women (as there are no studies on yoga). Using the pre-post
151
+ mean and SD values from the vasomotor outcome variables
152
+ from that study, an effect size of 0.52 was calculated.32 Using
153
+ this value of effect size and the values for ‘alpha’ and power at
154
+ 0.05 and 0.8, respectively, a sample size of 108 was derived.
155
+ Of a total of 201 women experiencing menopausal symp-
156
+ toms screened, 120 women (married or single) who satisfied
157
+ the inclusion criteria of (a) age between 40 and 55 years and
158
+ (b) serum FSH level equal to or higher than 15 miu/ml on
159
+ the sixth day of the menstrual cycle if she was menstruating
160
+ regularly or at the time of recruitment if she had stopped
161
+ menstruating or had irregular cycles were selected for the
162
+ study. Women who had undergone hysterectomy with retained
163
+ ovaries were also included. Exclusion criteria were (a) women
164
+ who were practising yoga for a month or more, (b) women
165
+ with no knowledge of English, (c) women with less than high
166
+ school education, (d) women taking HRT, (e) women who
167
+ underwent any surgery in past 3 months, (f) those with gynae-
168
+ cological problems like endometriosis, fibroids, ovarian cysts,
169
+ prolapsed uterus etc., (g) women with other medical disor-
170
+ ders (like hypertension, diabetes mellitus, hypo/hyperthyr-
171
+ oidism) and (h) those on psychiatric medication.
172
+ Source of participants
173
+ The study was conducted at the Yoga University, Swami
174
+ Vivekananda Yoga Research Foundation (SVYASA) in Bangalore
175
+ city. The subjects were recruited through advertisements and
176
+ giving talks about the benefit of these practices in women’s
177
+ organisations, clubs and organisations such as lioness clubs.
178
+ They were also contacted through banners, newspaper adver-
179
+ tisements and circulation of pamphlets apart from references
180
+ through word of mouth. Some women were recruited through
181
+ Chattha et al.
182
+ 992
183
+ ª 2008 Swami Vivekananda Yoga Anusandhana Samsthana Journal compilation ª RCOG 2008 BJOG An International Journal of Obstetrics and Gynaecology
184
+ gynaecological clinics as they consulted the doctor for their
185
+ menopausal symptoms. In all, they were recruited from 14
186
+ different areas of Bangalore and classes were conducted at 14
187
+ nodal centres of SVYASA in different parts of the city.
188
+ Ethical clearance and consent
189
+ The institutional review board and ethical committee of the
190
+ University Swami Vivekananda Yoga Research Foundation,
191
+ Bangalore, sanctioned formal approval. The research staff
192
+ answered queries and the participants then made an informed
193
+ independent decision about participating in the study.
194
+ Design
195
+ This was a prospective, randomised controlled trial (RCT)
196
+ wherein 120 participants were randomly divided into two
197
+ groups: one group practised integrated approach of yoga ther-
198
+ apy (IAYT) and the other practised a set of physical exercises.
199
+ The women who satisfied the inclusion criteria were regis-
200
+ tered in different nodal centres by using pre-labelled enve-
201
+ lopes to avoid selection bias; roll numbers were allotted and
202
+ these numbers were randomly divided into two groups using
203
+ a computer-generated random number table (http://www.
204
+ randomizer.org) prepared for the specific number of partic-
205
+ ipants available in the centre. Participants were assessed for
206
+ the cognitive tests before and after 8 weeks of intervention.
207
+ Both the yoga and control groups were given their respective
208
+ set of practices for 1 hour of intervention per day, 5 days per
209
+ week for 8 weeks, by specially trained instructors for both
210
+ yoga and non-yogic physical exercise groups.
211
+ Blinding
212
+ As this is an interventional study, this could not be a double-
213
+ blind study, but attempts were made to blind and mask wher-
214
+ ever feasible to reduce the bias. The statistician who did the
215
+ randomisation of the serial numbers of participants and the
216
+ final analysis was blind to the source of the data. The answer
217
+ sheets for the six-letter cancellation test (SLCT) and Punit
218
+ Govil Intelligence Memory Scale (PGIMS) were coded and kept
219
+ away for final analysis and were decoded only after complete
220
+ analysis. The memory tests were administered by a psychologist
221
+ (who was not involved in interacting with the participants) to
222
+ the whole group before randomisation. Care was taken to
223
+ arrange the timings and venue of the classes for the two groups
224
+ suitably to avoid interaction and exchange of information and
225
+ techniques among the participants of the two groups.
226
+ Assessments
227
+ Biochemical assessment
228
+ Serum FSH was used for initial screening of the subjects to
229
+ satisfy one of the inclusion criteria. Blood samples were
230
+ Figure 1. Trial profile.
231
+ Yoga in climacteric syndrome
232
+ ª 2008 Swami Vivekananda Yoga Anusandhana Samsthana Journal compilation ª RCOG 2008 BJOG An International Journal of Obstetrics and Gynaecology
233
+ 993
234
+ collected in ‘Anand Diagnostic Laboratory’, Bangalore, on the
235
+ sixth day of menstruation if the woman was menstruating
236
+ regularly or at the time of recruitment itself if the woman
237
+ had stopped menstruating or had irregular cycles. Estimation
238
+ of FSH was carried out by electrochemiluminescence method
239
+ using Roche Elecsys 2010 FSH kit. As per the standardisation,
240
+ the normal range for the FSH values during follicular phase
241
+ for regularly menstruating Indian women was 3.5–12.5 miu/
242
+ ml. For the present study, a value of >15 miu/ml was consid-
243
+ ered the inclusion criterion.33
244
+ Vasomotor symptoms checklist
245
+ A checklist of three of the major symptoms of climacteric
246
+ (vasomotor symptoms checklist [VCL] 1, hot flushes; VCL
247
+ 2, night sweats and VCL 3, sleep disturbances), with severity
248
+ scoring ranging from 0 to 3 (0 being absence of that symptom
249
+ and 3 being severely suffering from that symptom), was used
250
+ to assess the vasomotor symptoms for all participants.
251
+ Six-letter cancellation test
252
+ Six-letter cancellation test (SLCT) for adults is a paper-and-
253
+ pencil test that uses a letter cancellation task that measures
254
+ cognitive functions such as selective and focused attention,
255
+ visual scanning as well as activation and inhibition of rapid
256
+ responses. It consists of a test worksheet that specifies six
257
+ target letters to be cancelled and has a ‘working section’,
258
+ which consists of letters of the alphabet, arranged randomly
259
+ in 22 rows and 14 columns. The participants are asked to
260
+ cancel as many of the six target letters as possible in a specified
261
+ time of 90 seconds.34 The total number of cancellations and
262
+ wrong cancellations are scored, and the net scores are cal-
263
+ culated by deducting wrong cancellations from the total at-
264
+ tempt. This test has been evaluated for its reliability and
265
+ validity based on standard criteria. Reliability has been ascer-
266
+ tained based on (a) temporal stability and (b) internal con-
267
+ sistency.35 The content validity of this test is adequate for the
268
+ purpose for which it is intended.36 The normal value for
269
+ healthy Indian adults for SLCT is 38 ± 6.34
270
+ Tests of memory
271
+ PGIMS is a battery of ten memory tests, which measures the
272
+ remote memory, recent memory, mental balance, two tests for
273
+ attention and concentration (for digit memory and reverse
274
+ digit memory), delayed recall, immediate recall, retention
275
+ for similar pairs, retention for dissimilar pairs, visual retention
276
+ and recognition test. The participant is supposed to write the
277
+ responses to the questions asked by the administrator. Of the
278
+ ten tests, eight tests are verbal, one test pertains to geometrical
279
+ drawing and one on recognising objects. The reliability of this
280
+ scale has been tested, and the norms for adults (>20 years)
281
+ with no psychiatric/neurological illnesses are available. PGIMS
282
+ is incorporated as one of the important tests to evaluate cog-
283
+ nitive functions and organic brain dysfunctions. Administra-
284
+ tion takes 15–20 minutes per participant. The test retest
285
+ reliability on 40 subjects ranged between 0.70 and 0.84 for
286
+ organic psychotic groups, 0.48 and 0.84 for neurotic group.
287
+ On the whole, however, an increase of four points was
288
+ observed on repeated testing. For these two groups, split-half
289
+ reliability was found to be 0.91 and 0.83, respectively.37
290
+ Yoga intervention
291
+ The yoga module used for the experimental intervention called
292
+ integrated approach of yoga therapy (IAYT) for perimeno-
293
+ pausal women was developed specifically for the purpose culled
294
+ out from original scriptures (Patanjali yoga sutras and Mandu-
295
+ kya karika) that highlight the concepts of a holistic approach to
296
+ health management at physical, mental, emotional and intel-
297
+ lectual levels with techniques to improve mental equilibrium
298
+ and cognitive abilities. All these practices are aimed at one
299
+ common effect, i.e. ‘to develop mastery over modifications of
300
+ the mind’ (chitta vritti nirodhah—Sage Patanjali) through
301
+ ‘slowing down the rate of flow of thoughts in the mind’
302
+ (manah prashamana upayah yogah—Sage Vasishta).
303
+ 1 Sun salutation that includes a flow of 12 postures combined
304
+ with breathing and chanting.38
305
+ 2 Yogic breathing practices combined with simple body
306
+ movements aimed to bring about a slow rhythmic breath-
307
+ ing pattern that is the safest way to get mastery over the
308
+ mind.39 The principles involved in the technique of breath-
309
+ ing were (a) slow down the rate of breathing while synchro-
310
+ nising the body movements with breathing, (b) ensure that
311
+ exhalation was longer than inhalation and (c) practice with
312
+ full awareness of the touch of the flow of air through the
313
+ nostril down the air passages.
314
+ 3 Cyclic meditation (CM): Meditation is considered to be
315
+ a part of yoga that works directly at the mind level (Antar-
316
+ anga yoga), which is a valuable tool to reach a state of alertful
317
+ rest (calming down or silencing the internal dialogue). CM
318
+ is a 35-minute practice that includes a combination of acti-
319
+ vating and pacifying practices to reach deeper quietitude and
320
+ equilibrium than meditating in a single posture.40
321
+ 4 The study group got lectures on physiology of menopause,
322
+ healthy lifestyle including diet, exercise and yogic stress
323
+ management techniques. Also, they were given yogic con-
324
+ cepts to achieve a notional correction to help the partici-
325
+ pant (a) recognise her ability to tap the inner energy, which
326
+ is made of immense bliss that could keep up her youthful
327
+ feeling and allay the fears, (b) to restore her inbuilt freedom
328
+ to change the responses to situations and (c) learn to touch
329
+ the bed of silence, which is the source of all creativity that is
330
+ essential for promotion of any cognitive function.41
331
+ Control intervention
332
+ The control group practised a set of exercise programme
333
+ comprising easy (nonsweating) body movements supervised
334
+ by physical trainers for the same duration of 1 hour daily, 5
335
+ Chattha et al.
336
+ 994
337
+ ª 2008 Swami Vivekananda Yoga Anusandhana Samsthana Journal compilation ª RCOG 2008 BJOG An International Journal of Obstetrics and Gynaecology
338
+ days a week for 8 weeks. The exercise involved the stretching
339
+ of the arms, legs and spinal twists, strengthening the muscles
340
+ around knee joints, shoulder joints, neck and wrist joints.
341
+ Lectures and individual counselling was given on conven-
342
+ tional modern medical concepts about healthy lifestyle
343
+ including diet, exercise and physiology of menopause and
344
+ stress management techniques. Details are given in Table 1.
345
+ Data extraction
346
+ Data of 108 (leaving the 12 dropouts of 120) participants were
347
+ scored as per the instructions in the manual by a psychologist
348
+ and were analysed by the statistician using SPSS version
349
+ 10.0 (SPSS Inc., Chicago, IL, USA). The test of normality
350
+ was carried out using Kolmogorov–Smirnov test as the sam-
351
+ ple size was above 50. Because the data were not normally
352
+ distributed, nonparametric tests were used: Mann–Whitney
353
+ test for between group comparison and Wilcoxon signed-
354
+ ranks test for within group comparison. The baseline values
355
+ for all the variables in both the groups were compared using
356
+ Mann–Whitney test. Effect sizes were calculated to measure
357
+ the magnitude of difference of parameters between the two
358
+ groups.42 Correlations were checked by Spearman’s correla-
359
+ tion coefficient, as the data were non-normal. For the design
360
+ of this study (one within-subjects and one between-subjects
361
+ factor), there were no ancillary analyses.
362
+ Results
363
+ The flowchart describes the trial profile (Figure 1). Of the 120
364
+ participants, there were 12 dropouts, 5 in the yoga and 7 in
365
+ the control group due to (a) husband’s ill health, (b) transfer
366
+ to other cities and (c) unexpected events in the family.
367
+ Table 2 shows demographic data. At baseline, the data
368
+ were not significantly different between the two groups for
369
+ FSH and body mass index (P = 0.11 and 0.07, respectively,
370
+ Mann–Whitney test), for SLCT (P = 0.528) and all subtests
371
+ of PGIMS (P value for test I, 0.39; II, 0.49; III, 0.24; IV (i),
372
+ 0.43; IV (ii), 0.01; V, 0.625; VI, 0.59; VII, 0.72; VIII, 0.98; IX,
373
+ 0.92 and X, 0.06).
374
+ Table 3 shows the results of VCL. The scores on all three
375
+ symptoms in VCL reduced significantly in yoga group with
376
+ a nonsignificant change in control group (except night
377
+ sweats). Mann–Whitney test showed a trend of significant
378
+ (P = 0.06) difference between groups in night sweats only.
379
+ Table 4 shows the results of the SLCT and PGIMS. The
380
+ values of SLCT improved in both groups. Mann–Whitney test
381
+ showed significantly greater improvement (P < 0.001) in yoga
382
+ group (effect size 1.16) than the control group (effect size 0.6).
383
+ The results for the different cognitive functions of the
384
+ PGIMS tests are as follows:
385
+ • PGIMS-I (remote memory): Both groups showed signifi-
386
+ cant increase (P = 0.001, Wilcoxon test). There was greater
387
+ improvement (P < 0.001, Mann–Whitney test) in the yoga
388
+ (effect size 0.84) than in the control group (effect size 0.58).
389
+ • PGIMS-II (recent memory): There was no change observed
390
+ in this test because the effect sizes were very low (0.01,
391
+ Mann–Whitney test) in both groups.
392
+ • PGIMS-III (mental balance): Yoga group showed significant
393
+ increase (P < 0.001, Wilcoxon test), whereas the control
394
+ group showed no change (P = 0.39). There was greater im-
395
+ provement (P < 0.001, Mann–Whitney test) in the yoga
396
+ group (effect size 1.66) than in the control group (effect size
397
+ 0.17).
398
+ • PGIMS-IV (i) (attention and concentration): Both groups
399
+ showed significant increase with greater improvement (P <
400
+ 0.001, Mann–Whitney test) in the yoga (effect size 0.74)
401
+ than in the control group (effect size 0.34).
402
+ • PGIMS-IV (ii) (attention and concentration): Both groups
403
+ showed significant increase (P = 0.001, Wilcoxon test).
404
+ There was significant difference between (P < 0.001, Mann–
405
+ Whitney test) yoga (effect size 0.61) and control groups
406
+ (effect size 0.63).
407
+ Table 1. Practices used for the two intervention groups
408
+ Experimental group
409
+ Control group
410
+ 1
411
+ Lectures on IAYT, diet, emotion culture,
412
+ concepts and management of stress
413
+ according to yogic practices (15 minutes)
414
+ Lectures on importance of exercise, role of diet in
415
+ menopause, stress, stress physiology (15 minutes)
416
+ 2
417
+ Breathing exercises: (10 minutes)
418
+ Loosening practices: (10 minutes)
419
+ Hasta 
420
+ ay
421
+ ama s
422
+ ´vasanam (hands in and out breathing)
423
+ Twisting
424
+ Hasta vist
425
+ ara s
426
+ ´vasanam (hands stretch breathing)
427
+ Forward and backward bending
428
+ Gulpha vist
429
+ ara s
430
+ ´vasanam (ankle stretch breathing)
431
+ Side bending
432
+ Vy
433
+ aghra s
434
+ ´vasanam (tiger breathing)
435
+ Spinal twist
436
+ Setu bandha s
437
+ ´vasanam (bridge posture breathing)
438
+ Toe walking
439
+ 3
440
+ Suryanamaskara (sun salutation) (10 minutes)
441
+ Brisk walk (10 minutes)
442
+ 4
443
+ Avartan dhyanam (CM) (25 minutes)
444
+ Supine rest (25 minutes)
445
+ Yoga in climacteric syndrome
446
+ ª 2008 Swami Vivekananda Yoga Anusandhana Samsthana Journal compilation ª RCOG 2008 BJOG An International Journal of Obstetrics and Gynaecology
447
+ 995
448
+ • PGIMS-V (delayed recall): The yoga group showed signifi-
449
+ cant increase (P < 0.001, Wilcoxon test), whereas the control
450
+ group showed no improvement (P = 0.36). There was greater
451
+ improvement (P < 0.001, Mann–Whitney test) in the yoga
452
+ (effect size 1.47) than in the control group (effect size 0.18).
453
+ • PGIMS-VI (immediate recall): The yoga group showed sig-
454
+ nificant increase (P < 0.001, Wilcoxon test), but the control
455
+ group showed significant change (P = 0.015). There was
456
+ greater improvement (P < 0.001, Mann–Whitney test) in
457
+ the yoga (effect size 1.51) than in the control group (effect
458
+ size 0.42).
459
+ • PGIMS-VII (verbal retention of similar pairs): There was no
460
+ change in both the groups (P = 0.18 in yoga group, P = 0.25
461
+ in control group in Wilcoxon test). There was no difference
462
+ between the groups (P = 0.56, Mann–Whitney test).
463
+ • PGIMS-VIII (verbal retention of dissimilar pairs): Both
464
+ groups showed significant increase (P < 0.001 in yoga group,
465
+ P = 0.009 in control group in Wilcoxon test). The magnitude
466
+ of change within group was more in the control group (effect
467
+ size 1.23) than that in the yoga group (effect size 0.90).
468
+ • PGIMS-IX
469
+ (visual
470
+ retention):
471
+ There
472
+ was
473
+ significant
474
+ increase in the yoga group (P < 0.001, Wilcoxon test),
475
+ whereas no change in the control group (P = 0.39). There
476
+ was greater improvement (P = 0.01, Mann–Whitney test)
477
+ in the yoga (effect size 0.70) than in the control group
478
+ (effect size 0.14).
479
+ • PGIMS-X (recognition): Both groups showed significant
480
+ increase (P = 0.001, Wilcoxon test). There was greater
481
+ improvement (P = 0.001, Mann–Whitney test) in the yoga
482
+ (effect size 0.58) than in the control group (effect size 0.28).
483
+ Table 2. Demographic data
484
+ Serial number
485
+ Variables
486
+ Yoga
487
+ Control
488
+ 1
489
+ Age (mean  SD)
490
+ 49  3.6
491
+ 48  4
492
+ Number between 40–45 (years)
493
+ 13
494
+ 14
495
+ Number between 46–50 (years)
496
+ 22
497
+ 23
498
+ Number between 51–55 (years)
499
+ 19
500
+ 17
501
+ 2
502
+ W/H
503
+ 14/40
504
+ 9/45
505
+ 3
506
+ Body mass index (mean  SD)
507
+ 28  3.4
508
+ 29  4
509
+ 4
510
+ V/NV
511
+ 43/11
512
+ 45/9
513
+ n
514
+ FSH (mean  SD) miu/ml
515
+ n
516
+ FSH (mean  SD) miu/ml
517
+ 5
518
+ A: premenopausal
519
+ 14
520
+ 43.88  21.64
521
+ 16
522
+ 37.94  17.52
523
+ B: irregular menstruation
524
+ 17
525
+ 47.16  23.45
526
+ 20
527
+ 38.72  14.94
528
+ C: menopausal
529
+ 9
530
+ 83.65  43.59
531
+ 7
532
+ 56.9  20.77
533
+ D: postmenopausal
534
+ 14
535
+ 59.5  18.67
536
+ 11
537
+ 66.81  21.14
538
+ 6
539
+ FSH (miu/ml) mean  SD
540
+ 56  29.9
541
+ 47  21.5
542
+ V/NV, vegetarian/non-vegetarian; W/H, working/housewives.A, women having regular menstruation; B, irregular menstrual cycles, C, menopause
543
+ attained between 1 year and 3 years ago; D, menopause attained more than 3 years ago. There is no significant difference between groups in
544
+ all the variables at baseline.
545
+ Table 3. Results of vasomotor symptom checklist (VCL)
546
+ Variables
547
+ Y
548
+ C
549
+ Y
550
+ C
551
+ Y
552
+ C
553
+ Significant
554
+ Y and C P**
555
+ Effect size
556
+ Y and C
557
+ Pre mean
558
+  SD
559
+ Post mean
560
+  SD
561
+ Pre mean
562
+  SD
563
+ Post mean
564
+  SD
565
+ Significant P*
566
+ Effect size
567
+ pre-post
568
+ VCL 1
569
+ 1.02  1.02
570
+ 0.50  0.77
571
+ 0.78  0.84
572
+ 0.70  0.74
573
+ ,0.001
574
+ 0.39
575
+ 0.65
576
+ 0.10
577
+ 0.08
578
+ 0.26
579
+ VCL 2
580
+ 0.83  1.06
581
+ 0.43  0.69
582
+ 0.85  0.90
583
+ 0.65  0.73
584
+ ,0.001
585
+ 0.04
586
+ 0.62
587
+ 0.27
588
+ 0.06
589
+ 0.31
590
+ VCL 3
591
+ 0.74  0.99
592
+ 0.44  0.72
593
+ 0.85  0.98
594
+ 0.74  0.91
595
+ 001
596
+ 0.18
597
+ 0.49
598
+ 0.14
599
+ 0.08
600
+ 0.36
601
+ C, control group; VCL 1, hot flushes; VCL 2, night sweats; VCL 3, disturbed sleep; Y, yoga group.Mean  SD and P values for within and between
602
+ groups and effect sizes are calculated for vasomotor symptoms before and after 8 weeks of intervention. VCL: There is significant improvement
603
+ in yoga group and nonsignificant improvement in control group except night sweats.
604
+ *Wilcoxon P value.
605
+ **Mann–Whitney P value.
606
+ Chattha et al.
607
+ 996
608
+ ª 2008 Swami Vivekananda Yoga Anusandhana Samsthana Journal compilation ª RCOG 2008 BJOG An International Journal of Obstetrics and Gynaecology
609
+ Discussion
610
+ Cognitive functions and vasomotor symptoms were assessed
611
+ in this randomised control prospective two-arm interven-
612
+ tional study on 108 perimenopausal women (age 40–55
613
+ years). Mann–Whitney test to compare the two groups
614
+ showed that there was significantly better improvement in
615
+ the yoga group compared with the control group in hot
616
+ flushes and attention task in SLCT. In PGIMS, there was
617
+ significant improvement within both groups with significant
618
+ difference between groups, the effect sizes being better in the
619
+ yoga group than in the control group in PGIMS-I (remote
620
+ memory), III (mental balance), IV (i and ii) (attention and
621
+ concentration [i and ii]), VI (immediate recall) and X tests
622
+ (recognition test). There was significant improvement only
623
+ in yoga group and not in control group with significant dif-
624
+ ference between groups in PGIMS-V (delayed recall) and
625
+ PGIMS-IX (visual retention). In PGIMS-VIII (verbal retention-
626
+ ii), both groups improved with higher effect size in control
627
+ group and significant difference between groups. The PGIMS-
628
+ II (recent memory) and PGIMS-VII (verbal retention-i) tests
629
+ showed no change in both the groups.
630
+ Comparison with other studies
631
+ The preferred option for complementary and alternative
632
+ medicine (CAM) by women43 has triggered interest into
633
+ research on these therapies. Of the four studies (two on
634
+ cognitive behavioural therapy (CBT) and two on relaxation
635
+ response), only one was a well-designed RCT on 33 women
636
+ taking relaxation response training compared with a reading
637
+ group, demonstrated a significant reduction in hot flush
638
+ intensity, tension-anxiety and depression in perimenopausal
639
+ women after 10 weeks of intervention.44 Our recent rando-
640
+ mised control study in the Indian population has shown the
641
+ Table 4. Results of SLCT and PGIMS
642
+ Variable
643
+ Groups
644
+ Pre
645
+ mean  SD
646
+ Post
647
+ mean  SD
648
+ Within
649
+ group, P*
650
+ Effect size
651
+ pre-post
652
+ Between
653
+ Y and C, P**
654
+ Effect size
655
+ Y and C
656
+ Normative
657
+ data
658
+ SLCT
659
+ Y
660
+ 27.43  6.91
661
+ 35.31  6.72
662
+ ,0.001
663
+ 1.16
664
+ ,0.001
665
+ 0.8
666
+ 30  6
667
+ C
668
+ 26.48  6.37
669
+ 30.19  6.63
670
+ ,0.001
671
+ 0.6
672
+ PGIMS-I
673
+ Y
674
+ 5.43  0.66
675
+ 5.87  0.34
676
+ ,0.001
677
+ 0.84
678
+ ,0.001
679
+ 1.55
680
+ 5.78  0.52
681
+ C
682
+ 5.52  0.67
683
+ 5.17  0.54
684
+ 0.001
685
+ 0.58
686
+ PGIMS-II
687
+ Y
688
+ 4.94  0.23
689
+ 4.94  0.23
690
+ 0.83
691
+ 0.00
692
+ 0.080
693
+ 0.01
694
+ 4.91  0.29
695
+ C
696
+ 5  0.51
697
+ 4.93  1.15
698
+ 0.439
699
+ 0.08
700
+ PGIMS-III
701
+ Y
702
+ 4.93  1.15
703
+ 6.52  0.72
704
+ ,0.001
705
+ 1.66
706
+ ,0.001
707
+ 1.36
708
+ 5.69  2.64
709
+ C
710
+ 5.19  0.93
711
+ 5.33  0.7
712
+ 0.394
713
+ 0.17
714
+ PGIMS-IV (i)
715
+ Y
716
+ 5.39  1.04
717
+ 6.2  1.14
718
+ ,0.001
719
+ 0.74
720
+ ,0.001
721
+ 0.94
722
+ 8.46  1.91***
723
+ C
724
+ 5.24  1.11
725
+ 4.83  1.3
726
+ 0.014
727
+ 0.34
728
+ PGIMS-IV (ii)
729
+ Y
730
+ 3.57  1.09
731
+ 4.19  0.95
732
+ ,0.001
733
+ 0.61
734
+ ,0.001
735
+ 0.58
736
+ C
737
+ 4.17  1.15
738
+ 3.56  0.74
739
+ 0.001
740
+ 0.63
741
+ PGIMS-V
742
+ Y
743
+ 8.11  0.88
744
+ 9.33  0.78
745
+ ,0.001
746
+ 1.47
747
+ ,0.001
748
+ 1.20
749
+ 6.99  1.53
750
+ C
751
+ 8.02  0.9
752
+ 8.17  0.8
753
+ 0.363
754
+ 0.18
755
+ PGIMS-VI
756
+ Y
757
+ 9.26  1.51
758
+ 11.13  0.89
759
+ ,0.001
760
+ 1.51
761
+ ,0.001
762
+ 0.93
763
+ 7.41  1.98
764
+ C
765
+ 9.41  1.5
766
+ 9.98  1.21
767
+ 0.015
768
+ 0.42
769
+ PGIMS-VII
770
+ Y
771
+ 4.93  0.26
772
+ 4.98  0.14
773
+ 0.18
774
+ 0.24
775
+ 0.56
776
+ 0.10
777
+ 4.36  0.78
778
+ C
779
+ 4.91  0.29
780
+ 4.96  0.19
781
+ 0.257
782
+ 0.20
783
+ PGIMS-VIII
784
+ Y
785
+ 11.48  2.67
786
+ 13.46  1.59
787
+ ,0.001
788
+ 0.90
789
+ ,0.001
790
+ 0.73
791
+ 11  3.59
792
+ C
793
+ 9.28  2
794
+ 11.85  2.18
795
+ 0.009
796
+ 1.23
797
+ PGIMS-IX
798
+ Y
799
+ 10.85  2.46
800
+ 12.35  1.76
801
+ ,0.001
802
+ 0.70
803
+ 0.01
804
+ 0.26
805
+ 8.2  3.28
806
+ C
807
+ 11.43  2.46
808
+ 11.76  2.1
809
+ 0.39
810
+ 0.14
811
+ PGIMS-X
812
+ Y
813
+ 8.13  2.37
814
+ 9.37  1.89
815
+ ,0.001
816
+ 0.58
817
+ 0.001
818
+ 0.37
819
+ 8.36  1.61
820
+ C
821
+ 7.57  1.53
822
+ 8.59  1.4
823
+ ,0.001
824
+ 0.28
825
+ C, control group; Y, yoga group.Mean  SD and P values are calculated for PGIMS (ten subtests) using Wilcoxon P value and Mann–Whitney
826
+ P value. Variables: PGMIS-I, remote memory; PGIMS-II, recent memory; PGIMS-III, mental balance; PGIMS-IV (i), attention and concentration (i);
827
+ PGIMS-IV (ii), attention and concentration (ii); PGIMS-V, delayed recall; PGIMS-VI, immediate recall; PGIMS-VII, verbal retention (i); PGIMS-VIII,
828
+ verbal retention (ii); PGIMS-IX, visual retention; PGIMS-X, recognition test. There was greater improvement in the yoga group than the control
829
+ group in SLCT: improvement in yoga is better than control group and in all subtests of memory except II and VII and the control showed better
830
+ effect size than yoga group in VIII test.
831
+ *Wilcoxon P value.
832
+ **Mann–Whitney P value.
833
+ ***This score is given in the PGIMS manual combining both attention and concentration (i) and (ii).37
834
+ Yoga in climacteric syndrome
835
+ ª 2008 Swami Vivekananda Yoga Anusandhana Samsthana Journal compilation ª RCOG 2008 BJOG An International Journal of Obstetrics and Gynaecology
836
+ 997
837
+ reduction in vasomotor and other menopausal symptoms 8
838
+ weeks after the supervised practice of the integrated approach
839
+ of yoga therapy as measured by Greene climacteric scale (GCS)
840
+ with a significant difference between groups with higher effect
841
+ sizes in the yoga group than the control group in all factors of
842
+ GCS.45
843
+ There are no studies on changes in cognitive functions with
844
+ nonpharmacological therapies. In comparison, the present
845
+ study on IAYT that combined both body and mind level
846
+ practices of self-management (lifestyle change) has shown
847
+ significant improvement in both frontal lobe and memory
848
+ functions for the first time through a nonpharmacological
849
+ intervention. A study on the interaction of HRT and physical
850
+ activity (PA) showed a beneficial relationship between PA and
851
+ cognitive performance in postmenopausal women irrespective
852
+ of HRT use.46 These studies tend to point out that the self-
853
+ corrective techniques that the person puts in by applying her
854
+ mind, be it a PA or IAYT, influences the cognitive functions.
855
+ Mechanism
856
+ SLCT measures the attention capacity, a frontal lobe function.
857
+ A self-control study on the effect of CM (that has been incor-
858
+ porated in the IAYT for the experimental group in the present
859
+ study) has shown significant increase in SLCT scores imme-
860
+ diately after CM, suggesting enhanced efficiency and shorter
861
+ time in cortical neural processing.47
862
+ Electrophysiological studies during cognitive functions of
863
+ the brain have reported that P300 (a specific positive wave
864
+ that occurs at the 300th millisecond in the tracing of evoked
865
+ potential) is generated from hippocampus and other associ-
866
+ ated areas.48 Estrogen receptors have been detected in the
867
+ pyramidal cells nuclei of the ventral hippocampus and other
868
+ specific brain areas that are involved in learning, memory and
869
+ cognition. Cyclic changes in synaptic genesis and spine den-
870
+ sity of the hippocampus have been shown to be induced by
871
+ estrogen,18 which gets depleted in this age; hence, memory
872
+ functions may undergo a declining change. However, con-
873
+ trary to our expectation, estrogen replacement therapy
874
+ (ERT) per se may not improve the cognitive functions.46 A
875
+ study on the effect of CM observed that there was reduction in
876
+ the peak latencies of P300 after CM compared with the prev-
877
+ alues that suggest enhanced efficiency and shorter time in
878
+ processing. Also, the P300 peak amplitudes after CM were
879
+ higher compared with the prevalues, suggesting an increased
880
+ in attentional resources.49 Thus, it may be hypothesised that
881
+ the improvement in the cognitive functions observed in this
882
+ study is due to the effect of yoga in bringing about better
883
+ information processing in the subtle layers of the frontal lobe.
884
+ This in turn could be due to the alertful rest that CM may
885
+ offer and may not be related to estrogen-mediated response.
886
+ CM developed on a subtle principle suggested by a rarely used
887
+ authentic scripture (Mandukya karika) that includes stimula-
888
+ tion–relaxation combination for achieving deeper degree of
889
+ rest. This principle is made practical by knitting yoga postures
890
+ interspersed with periods of supine relaxation and has been
891
+ shown to provide deeper degree of rest than simple supine
892
+ rest or the commonly used meditative techniques.50
893
+ Novelty, limitations and suggestions for
894
+ future work
895
+ This is the first RCT that has looked at cognitive functions
896
+ after yoga practice in climacteric. An objective measure, serum
897
+ FSH level, was used as the inclusion criterion rather than only
898
+ the subjective symptoms of menopausal rating scale. Control
899
+ group also had the supervised practices for the same duration
900
+ as the experimental group.
901
+ One limitation of the study with regard to external validity
902
+ was that because the tests were in English, the sample was
903
+ restricted to women with knowledge of the English language.
904
+ Thus, our sample should be taken to be fairly representative of
905
+ women in urban India.
906
+ Other limitations were that the estradiol levels were not
907
+ measured. Although we have used FSH levels as the only objec-
908
+ tive inclusion criterion,51 it will be interesting to see the effect of
909
+ long-term practice of IAYT on FSH and estradiol levels.
910
+ Suggestions for future work
911
+ Functional studies to look at the changes in neurohormonal
912
+ changes in the brain during IAYT in climacteric would throw
913
+ light on the mechanism.
914
+ Conclusions
915
+ Thus, the present study has shown that the practice of IAYT
916
+ for 8 weeks improves the cognitive functions like attention,
917
+ concentration, mental balance, verbal retention and recogni-
918
+ tion abilities in menopausal women compared with physical
919
+ exercises.
920
+ The control group practices that comprised of physical
921
+ exercises also showed improvement in many of the memory
922
+ functions similar to earlier studies on the efficacy of PA in
923
+ perimenopausal women.46 Thus, the present study shows the
924
+ superiority of yoga over PA in improving the cognitive func-
925
+ tions that could be attributed to emphasis on correctness in
926
+ breathing, synchronising breathing with body movements,
927
+ relaxation and mindful rest.
928
+ Funding
929
+ This study was funded by the parent institution: Swami
930
+ Vivekananda Yoga Research Foundation, Bangalore, India.
931
+ Contribution to authorship
932
+ R.C.: Involved in designing, conducting and writing the man-
933
+ uscript. R.N.: Regular supervision of the study in all phases
934
+ Chattha et al.
935
+ 998
936
+ ª 2008 Swami Vivekananda Yoga Anusandhana Samsthana Journal compilation ª RCOG 2008 BJOG An International Journal of Obstetrics and Gynaecology
937
+ including the manuscript writing. V.P.: Gynaecologist who
938
+ assessed the clients for recruitment, contributed in all phases
939
+ of the study by regular supervision and guidance. Inputs for
940
+ the manuscript writing. H.R.N.: Guidance and advice on the
941
+ yoga component of the design, training the therapists and
942
+ writing the manuscript.
943
+ Details of ethics approval
944
+ Formal approval was sanctioned in their letter SVYASA/
945
+ PHD/ETHICS/04-3011 dated 30 November 2004 by the insti-
946
+ tutional review board and ethical committee of the University
947
+ Swami Vivekananda Yoga Research Foundation, Bangalore.
948
+ Acknowledgements
949
+ We extend our gratitude to Dr Ravi Kulkarni, Biostatistician,
950
+ for helping in the statistical analysis of this study. We are
951
+ thankful to all the yoga teachers and physical trainers who
952
+ took the classes for this project. We are grateful to the Anand
953
+ Diagnostic Laboratory. We are thankful to the subjects for
954
+ their cooperation during the study. j
955
+ References
956
+ 1 Blake J. Menopause: evidence-based practice. Best Pract Res Clin
957
+ Obstet Gynaecol 2006;20:799–839.
958
+ 2 WHO (World Health Organization Scientific Group). The World Health
959
+ Report. Shaping the Future. Geneva, Switzerland: World Health Orga-
960
+ nization, 2003.
961
+ 3 Danilovich N, Harada N, Sairam MR, Maysinger D. Age-related neuro-
962
+ degenerative changes in the central nervous system of estrogen-deficient
963
+ follitropin receptor knockout mice. Exp Neurol 2003;183:559–72.
964
+ 4 Atwood CS, Meethal SV, Liu T, Wilson AC, Gallego M, Smith MA, et al.
965
+ Dysregulation of the hypothalamic-pituitary-gonadal axis with meno-
966
+ pause and andropause promotes neurodegenerative senescence.
967
+ J Neuropathol Exp Neurol 2005;64:93–103.
968
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subfolder_0/Effect of yoga program on executive functions of adolescents dwelling in an orphan home_ A randomized controlled study.txt ADDED
@@ -0,0 +1,862 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Original article
2
+ Effect of yoga program on executive functions of adolescents dwelling
3
+ in an orphan home: A randomized controlled study
4
+ Satya Prakash Purohit*, Balaram Pradhan a
5
+ Division of Yoga and Humanities, SVYASA Yoga University, #19, Eknath Bhavan, Gavipuram Circle, 560 019, Bengaluru, India
6
+ a r t i c l e i n f o
7
+ Article history:
8
+ Received 21 August 2015
9
+ Received in revised form
10
+ 15 February 2016
11
+ Accepted 21 March 2016
12
+ Available online 20 April 2016
13
+ Keywords:
14
+ Yoga
15
+ Orphans
16
+ Adolescents
17
+ Cognitive function
18
+ Executive function
19
+ a b s t r a c t
20
+ Executive function (EF) is important for physical and mental health of children. Studies have shown that
21
+ children with poverty and early life stress have reduced EF. The aim of the study was to evaluate the
22
+ effect of Yoga program on the EF of orphan adolescents. Seventy two apparently healthy orphan ado-
23
+ lescents
24
+ randomized
25
+ and
26
+ allocated
27
+ into
28
+ two
29
+ groups
30
+ as
31
+ Yoga
32
+ group
33
+ (n
34
+ ¼
35
+ 40;
36
+ 14
37
+ girls,
38
+ age ¼ 12.69 ± 1.35 yrs) and Wait List Control (WLC) group (n ¼ 32, 13 girls, age ¼ 12.58 ± 1.52 yrs). Yoga
39
+ group underwent three months of Yoga program in a schedule of 90 min per day, four days per week
40
+ whereas the WLC group followed the routine activities. They were assessed by Stroop Color-Word Task,
41
+ Digit Symbol Substitution Test (DSST), Digits Span Test and Trial Making Test (TMT) at the beginning and
42
+ end of the program.
43
+ The repeated measures ANOVA showed significant difference in time and group interactions (p < 0.05)
44
+ for all subtests of Stroop Color-Word Task and Digit Span Test and part-A of TMT whereas there were no
45
+ significant difference found in DSST and TMT (part-B).
46
+ The post-hoc test with Bonferroni adjustment also showed significant improvements (p < 0.001)
47
+ within the Yoga group in all test scores while in wrong score of DSST did not exhibit significant reduction.
48
+ Whereas the WLC group, showed significant improvement (p < 0.05) in Stroop Color, Color-Word score,
49
+ net score of DSST, Digit Span forward and Digit Span Total.
50
+ Three months Yoga program was found useful for the young orphan adolescents in improving their
51
+ executive functions.
52
+ Copyright © 2016, Center for Food and Biomolecules, National Taiwan University. Production and hosting
53
+ by Elsevier Taiwan LLC. This is an open access article under the CC BY-NC-ND license (http://
54
+ creativecommons.org/licenses/by-nc-nd/4.0/).
55
+ 1. Introduction
56
+ Globally two hundred million children failed to reach their po-
57
+ tential in cognitive development because of interrelated factors like
58
+ poverty, inadequate care and poor health.1 Orphans are among such
59
+ disadvantaged children living in the community with poverty, se-
60
+ vere grief and easily subjected to abuse, negligence and exploita-
61
+ tion.2 Prevalence of orphans was 143 million worldwide,3 72
62
+ million in South and East Asia,4 and 20 million in India.5
63
+ Adverse childhood events have a negative effect on latter life
64
+ cognitive performance.6 Socio-economic conditions of one's early
65
+ life or childhood are positively correlated with intelligence, aca-
66
+ demic achievement and other developmental outcomes in later
67
+ life.7,8 Previous studies with older Post Institutionalization (PI)
68
+ children have shown reduced performance on cognitive flexibility,9
69
+ working memory performance,9e11 and inhibitory control.11e13 It is
70
+ also reported that PI children have attention deficits and hyperac-
71
+ tivity symptoms, which persist into adolescence.14,15
72
+ The higher order of cognitive processes, such as cognitive flex-
73
+ ibility, working memory, and inhibition control which allow in-
74
+ dividuals to engage in planning, to be conscious and goal-directed
75
+ problem solving are called Executive Function (EF).16,17 In children,
76
+ EF is related to emotion regulation,18 conscience and moral devel-
77
+ opment,19 also math and literacy ability.20 EF is very important
78
+ factor for physical and mental health,21 making friendship,22 and
79
+ for success in school.23,24 Furthermore EF predicts school readi-
80
+ ness,20 later academic performance.25 Developments in such
81
+ cognitive functions are important in early life because deficiency in
82
+ these functions caused at childhood predict similar problems in the
83
+ * Corresponding author. Tel.: þ91 080 2263 9961, þ91 7676745174 (mobile).
84
+ E-mail addresses: [email protected] (S.P. Purohit), balaramp13@gmail.
85
+ com (B. Pradhan).
86
+ Peer review under responsibility of The Center for Food and Biomolecules,
87
+ National Taiwan University.
88
+ a Tel.: þ91 080 2263 9961, þ91 9483711185(mobile).
89
+ Contents lists available at ScienceDirect
90
+ Journal of Traditional and Complementary Medicine
91
+ journal homepage: http://www.elsevier.com/locate/jtcme
92
+ http://dx.doi.org/10.1016/j.jtcme.2016.03.001
93
+ 2225-4110/Copyright © 2016, Center for Food and Biomolecules, National Taiwan University. Production and hosting by Elsevier Taiwan LLC. This is an open access article
94
+ under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
95
+ Journal of Traditional and Complementary Medicine 7 (2017) 99e105
96
+ later years.21,26 It is believed that the higher order cognitive func-
97
+ tions may play an important role in balancing emotional arousal,
98
+ cognitive
99
+ processing,27
100
+ and reducing the impact of adverse
101
+ circumstances.28
102
+ Various activities are suggested to improve children's EF. The
103
+ best evidences exist are computer based training programs for
104
+ enhancing memory and reasoning,29,30 task-switching computer-
105
+ based training,31 traditional martial arts,32 aerobics,33 and Yoga.34
106
+ Yoga is an ancient Indian science and the way of life which in-
107
+ cludes practice of specific postures, breathing regulation, and
108
+ meditation.35 Earlier studies on Yoga including physical postures,
109
+ Yogic breathing, meditation and guided relaxation technique have
110
+ been shown its efficacy in improving delayed recall of spatial in-
111
+ formation and verbal memory,36 in reducing planning and execu-
112
+ tion time,34 and cognitive processes37 in adults. It is also proved
113
+ that there was an improvement in cognitive performance of 7e9
114
+ year-old school children from a socioeconomically disadvantaged
115
+ background in South India after three months of Yoga.38 Yogic life
116
+ style has also a positive impact in planning ability.39 There is also
117
+ evidence of the positive impact of Yoga on cognitive functions in
118
+ children with attention deficit and hyperactive disorder.40e43 In
119
+ addition, Yoga is an effective method to improve various cognitive
120
+ functions of remote memory, mental balance, attention, concen-
121
+ tration, attention span, processing speed, attention alternation
122
+ ability, delayed and immediate recall, executive functions, verbal
123
+ retention, and recognition tests in healthy young subjects.44,45
124
+ However, recent reviews stated that most of the Yoga studies on
125
+ children were open, unblinded, small sample sizes, short in-
126
+ terventions. Also many of the randomized studies have not
127
+ mentioned the process of randomization or have used inappro-
128
+ priate statistical analysis.46,47 Thus, understanding the effect of
129
+ Yoga on cognitive functions of orphans may be necessary in
130
+ providing avenues for promoting the mental strength to overcome
131
+ various tragedies in their upcoming life. In sum, the present study
132
+ was intended to evaluate the effect of Yoga on cognitive perfor-
133
+ mances of young orphan adolescents.
134
+ 2. Material and methods
135
+ 2.1. Participants
136
+ Out of 135 registrants, 80 were chosen for the study based on
137
+ the inclusion and exclusion criteria. Children were eligible for in-
138
+ clusion by following criteria: a) orphan(s) of any type, b) aged be-
139
+ tween 11 and 16 years, c) boys and girls, d) apparently healthy
140
+ without any chronic illness, physical, or mentally handicap. The
141
+ study was conducted between September 2014 and November
142
+ 2014 in an orphanage, within a suburban area of Bangalore.
143
+ 2.2. Ethical clearance
144
+ The study was approved (RES/IEC-SVYASA/32/204) by the
145
+ Institutional Ethics Committee of SVYASA (Swami Vivekananda
146
+ Yoga Anusandhana Samsthana) University. Both signed informed
147
+ consent from the institution head and signed informed assent from
148
+ all participants were obtained, upon explaining the study details.
149
+ 2.3. Design
150
+ It was a randomized wait-list controlled pre-post study. After
151
+ the initial process of screening, participants were randomized by a
152
+ statistician using a random number table from www.randomizer.
153
+ org and assigned into two groups: Yoga group and Wait List Con-
154
+ trol (WLC) group. The Yoga group underwent the Yoga program for
155
+ 3-months whereas the WLC group underwent routine activity.
156
+ 2.4. Blinding
157
+ The statistician (who did the randomization and analyzed the
158
+ data) and the researchers (who carried out the allocation & as-
159
+ sessments) were blinded.
160
+ 2.5. Intervention
161
+ The Yoga group received a combined approach of Yoga activities
162
+ of 90 min, 4 days per week, for 3-months. Later the same inter-
163
+ vention was served to WLC for the same duration. The Yoga pro-
164
+ gram was conducted by two certified Yoga teachers from SVYASA
165
+ (one with a master's degree in Yoga and other with a post-
166
+ graduation diploma in Yoga therapy). The principle and concept
167
+ of an integrated approach of the Yoga program was based on the
168
+ research works of SVYASA.48 The details of the intervention (Yoga
169
+ program) are given in Table 1.
170
+ 2.6. Assessments
171
+ The socio-demographic data was collected from the office of the
172
+ orphan home as it was collected as a routine documentation by
173
+ them. The final demographic data after post assessment in Yoga
174
+ group was taken on 40 participants where the males were 14(35%),
175
+ female were 26(65%), whereas in WLC male were 13 (40.6%), female
176
+ were 19 (59.4%) out of 32 participants. The cognitive functions tests
177
+ (Table 2) were collected by the research staffs of SVYASA during the
178
+ prior and following weeks adjacent to the intervention period for
179
+ all recruited participants. The investigators were available to clear
180
+ all possible doubts and provide unbiased guidance during the
181
+ assessment. There were four executive function tests, included in
182
+ the study, as detailed below.
183
+ 2.6.1. Stroop color and word test49
184
+ The children's version Stroop test measures the EF, which
185
+ involves in both word and color naming responses. The test was
186
+ in the form of a booklet containing three pages of word and
187
+ color conditions. The first page tests how fast the participant can
188
+ read words; name the colors in the second page; name which
189
+ color the words were printed in, ignoring the name of the word
190
+ in the third page. The test extracts three basic scores, namely
191
+ Stroop Word (STROOP_W) score, Stroop Color (STROOP_C) score
192
+ and
193
+ Stroop Color-Word (STROOP_CW) score.
194
+ The task was
195
+ administered individually and test instructions were explained
196
+ before starting the test. Errors of the participants were indicated
197
+ and asked to be corrected by the examiner before continuing.
198
+ The participants were given 45 s for each page and the
199
+ time taken to complete the task was recorded by using a stop
200
+ watch.
201
+ 2.6.2. Trial making test (TMT)50
202
+ This test was used to access the visual search, scanning, pro-
203
+ cessing speed, mental flexibility, and EF. It has two parts, part-A
204
+ (TMT_A) and part-B (TMT_B). In TMT_A, participants have to
205
+ draw lines sequentially connecting 25 encircled numbers distrib-
206
+ uted on a sheet of paper; And in TMT_B the task is similar except
207
+ the participant must alternate the sequence between numbers and
208
+ letters (e.g.1, A, 2, B, 3, C, etc.). The score on each part represents the
209
+ amount of time required to complete the task. Participants were
210
+ administered part A and B of the TMT and Total time in seconds for
211
+ both part A and B was recorded.
212
+ 2.6.3. Wechsler intelligence scale for children51
213
+ It was used in order to assess working memory and mental
214
+ tracking processes. Both forward and backward spans were
215
+ S.P. Purohit, B. Pradhan / Journal of Traditional and Complementary Medicine 7 (2017) 99e105
216
+ 100
217
+ calculated. For Digits Span Forward (DS_F), the participant was
218
+ supposed to repeat digits of the strings exactly as read by the
219
+ examiner. Two trials were administered of each string length. In
220
+ Digits Span Backward (DS_B), the procedures are identical to DS_F
221
+ except that the participant was required to repeat the string of
222
+ digits in a reverse order. Scoring for each correctly reproduce digit
223
+ span was scored as “one” and otherwise as “zero”. The total score
224
+ (DS_T) was calculated in addition of the DS_F and DS_B scores.
225
+ 2.6.4. Digit Symbol Substitution Test (DSST)51
226
+ DSST was used in order to access various cognitive components
227
+ as scanning, matching, switching, and writing operations which are
228
+ reflective of several higher cognitive functions such as perception,
229
+ encoding and retrieval processes, transformation of information
230
+ stored in active memory and decision making.52 It has a worksheet
231
+ with a specified row of six different symbols matched with six
232
+ different digits with pairs, which were to be canceled and had a
233
+ working section consisting of different pairs arrange randomly in
234
+ 22 rows and 14 columns. Participants were asked to cancel the
235
+ correct pairs as much as possible in 90 s with any possible strategy.
236
+ The total number of canceled pairs in the test (DSST_T), wrong
237
+ targets (DSST_W) and net scores (DSST_N) (total attempted-
238
+ wrongly attempted) was calculated for the analysis.
239
+ 2.7. Data analysis
240
+ Data were analyzed using the Statistical Package for Social Sci-
241
+ ence (Version 18.0). Gender categorical variables were analyzed
242
+ Table 1
243
+ List of practices in the yoga program.
244
+ Order no.
245
+ Intervention components
246
+ No. of rounds
247
+ Approx. time
248
+ (Total 90 min)
249
+ Schedule
250
+ 1
251
+ Yogic prayer, Session on basic concepts of yoga and
252
+ instructions for the class
253
+ 10 min
254
+ 4 days/week (Wednesday, Thursday,
255
+ Saturday and Sunday)
256
+ 2
257
+ Preparatory practices:
258
+ a) Warm up: jogging, jumping, hopping, forward &
259
+ backward bending, side bending, twisting
260
+ b) Loosening: for toes, ankle, knee, hips, fingers,
261
+ wrist, elbow and neck
262
+ c) Stretching with breathing exercises: hands in and out,
263
+ hands stretch, ankle stretch, hip stretch, backstretch, tiger
264
+ stretch (spinal ups- down), supine straight leg raising, cycling,
265
+ lumber stretch, rocking and rolling
266
+ One each
267
+ 10 min
268
+ 4 days/week (Wednesday, Thursday,
269
+ Saturday and Sunday)
270
+ 3
271
+ Sun salutation (Suryanamaskar)
272
+ 10e12
273
+ 10 min
274
+ 4 days/week (Wednesday, Thursday,
275
+ Saturday and Sunday)
276
+ 4
277
+ Asana (Postures):
278
+ A. Standing postures
279
+ a) Half waist rotation posture (Ardhakati Chakrasana)
280
+ b) Foot palm posture (Padahastasan)
281
+ c) Half wheel posture (Ardha chakrasana)
282
+ d) Triangle posture (Trikonasana)
283
+ e) Tree posture (Vrikshana)
284
+ f) Eagle posture (Gasudasana)
285
+ B. Sitting postures
286
+ a) Diamond (Vajrasana)
287
+ b) Rabbit posture (Shasahankasana)
288
+ c) Sleeping diamond posture (Suptavajrasana)
289
+ d) Camel posture (Ustrasana)
290
+ e) Posterior stretch (Paschimotasana)
291
+ f) Spinal twist posture (Ardhamatsyendrasana)
292
+ g) Cow face posture (Gomukhasana)
293
+ C. Prone posture:
294
+ a) Cobra posture (Bhujangasana)
295
+ b) Grasshopper posture (Salabhasana)
296
+ c) Bow posture (Dhanurasana)
297
+ d) Shoulder stand (Sarvangasana)
298
+ e) Plow posture (Halasana)
299
+ D. Supine postures
300
+ a) Fish posture (Matsyasana)
301
+ b) Boat posture (Naukasana)
302
+ 1 each
303
+ 20 min (around 1 min
304
+ each posture)
305
+ 4 days/week (Wednesday, Thursday,
306
+ Saturday and Sunday)
307
+ 5
308
+ Deep relaxation technique (DRT)
309
+ 1
310
+ 10 min
311
+ 4 days/week (Wednesday, Thursday,
312
+ Saturday and Sunday)
313
+ 6
314
+ Pranayama (voluntary regulation of breath):
315
+ a) Breathing with forceful exhalation with
316
+ passive inhalation (Kapalabhati-3 types)
317
+ b) Breathing with rapid inhalation & exhalation (Bhastrika)
318
+ c) Slow & rhythmic alternate nostril breathing (Nadisodhana)
319
+ d) Exhalation, with a honey bee sound (Bharamari)
320
+ e) Ujjayi (Hissing in thought while exhaling)
321
+ 1 each
322
+ 15 min
323
+ 4 days (Wednesday, Thursday,
324
+ Saturday and Sunday)
325
+ 7
326
+ Concentration Techniques:
327
+ a) Eye exercises (Netra shakti vikasana)
328
+ b) Practice to improve collective motivation (Dhruti shakti vikashaka)
329
+ c) Activity to improve intellect (Dhi shakti vikasaka)
330
+ d) Trataka
331
+ e) Palming
332
+ 1 each
333
+ 15 min
334
+ 2 days/week (Wednesday and Saturday)
335
+ 8
336
+ Yogic games (games for memory, awareness and creativity)
337
+ 15 min
338
+ 2 days/week (Thursday and Sunday)
339
+ S.P. Purohit, B. Pradhan / Journal of Traditional and Complementary Medicine 7 (2017) 99e105
340
+ 101
341
+ using Chi squared test. The Independent Sample ‘t’ test was used to
342
+ check the difference between groups for demographic measures.
343
+ Analysis of repeated measure followed by Bonferroni post-hoc was
344
+ performed for all the cognitive functions and Anthropometric
345
+ outcome measures.
346
+ 3. Results
347
+ The trial profile of the study is shown in Fig. 1. There were no
348
+ dropouts from Yoga group but eight from WLC. Among eight, two
349
+ were sick, two were suspended during the post assessment due to
350
+ their behavioral issues and other four were not willing to complete
351
+ the task. There were 40 data from Yoga group and 32 from the WLC
352
+ were available for the final analysis. The baseline mean age be-
353
+ tween groups was matched (p ¼ 0.78, Independent ‘t’ test). The
354
+ distribution of gender (p ¼ 0.624, Chi2 test) was not significantly
355
+ different between the two groups.
356
+ Repeated measures of ANOVA showed that there were no sig-
357
+ nificant differences between the groups mean score of baseline
358
+ (p > 0.05) for all the cognitive functions tests except Stroop_CW,
359
+ DS_F and DS_T.
360
+ There were significant difference (p < 0.001) found in times
361
+ (pre-post) score for STROOP_C [F (1,70) ¼ 39.165, p < 0.001],
362
+ STROOP_W [F (1,70) ¼ 32.540, p < 0.001], STROOP_CW [F
363
+ (1,70) ¼ 16.880, p < 0.001]; DSST_T [F (1,70) ¼ 17.968, p < 0.001],
364
+ DSST_N F (1,70) ¼ 19.366, p < 0.001]; DS_F [F (1,70) ¼ 44.796,
365
+ p < 0.001], DS_B [F (1,70) ¼ 29.228, p < 0.001], DS_T [F
366
+ (1,70) ¼ 64.221, p < 0.001]; TMT_A [F (1,70) ¼ 5.113, p < 0.001] and
367
+ TMT_B [F (1,70) ¼ 15.100, p < 0.001].
368
+ The group by time interaction showed (Table 2) significant dif-
369
+ ferences (p < 0.05) in STROOP_C, STROOP_W, STROOP_CW; DS_F,
370
+ DS_B, DS_T; TMT_A. This suggests performance of the Yoga group is
371
+ better than WLC, whereas there were no significant differences
372
+ found in, DSST_T, DSST_W, DSST_N, and TMT_B.
373
+ Within the Yoga group, post-hoc test with Bonferroni adjust-
374
+ ment showed (Table 2) significant improvements (p < 0.001) in
375
+ score for STROOP_C (12.95%), STROOP_W (17.69%), STROOP_CW
376
+ (19.98), DSST_T (15.02%), DSST_N, (16.89%), DS_F (33.81%), DS_B
377
+ (43.51 %), DS_T (37.86 %), TMT_A, (19.52%) and TMT_B (19.43%).
378
+ There was no significant improvement in DSST_W (12.94 %).
379
+ Within WLC group, post-hoc test with Bonferroni adjustment
380
+ showed (Table 2) significant improvement in STROOP_C (p < 0.05,
381
+ 5.14%), STROOP_CW (p < 0.01, 5.24%); DSST_N (p < 0.05, 10.91%),
382
+ DS_F (p < 0.05, 9.92 %), DS_T (p < 0.01, 11.50 %), whereas there were
383
+ no significant improvement in STROOP_W (3.78 %), DSST_T (8.18 %),
384
+ DSST_W (23.64 %), DS_B (14.04 %), TMT_A (5.98 %), TMT_B (9.73 %).
385
+ 4. Discussion
386
+ The present study was intended to study the effect of three
387
+ months of Yoga as compared to a WLC group on the CF of orphan
388
+ adolescents. The effect of the Yoga program provides evidence on
389
+ improving cognitive functions in orphan adolescents. The result
390
+ showed that the EF of the yoga group improved significantly
391
+ (p < 0.05) in the following domains; STROOP_W, STROOP_C,
392
+ STROOP_CW, DS_F, DS_B, DS_T, TMT_A, and TMT_B whereas WLC
393
+ group exhibited improvement STROOP_C, DSST_N, DS_F, DS_T as
394
+ compared to their baseline. The group by time interaction analysis
395
+ showed significant differences (p < 0.05) in STROOP_C, STROOP_W,
396
+ STROOP_CW; DS_F, DS_B, DS_T; TMT_A. This suggests performance
397
+ of the Yoga group is better than WLC.
398
+ Present study demonstrated that yoga has moderate effect
399
+ (g ¼ 0.29) on overall cognition, executive functions (g ¼ 0. 27),
400
+ attention and processing speed measures (g ¼ 0.34). These effect
401
+ sizes are comparable with a recent meta-analysis study of ran-
402
+ domized controlled trials on Yoga,53 where the overall observed
403
+ effect size of Yoga on cognition was (g ¼ 0.33), executive function
404
+ (g ¼ 0.27), attention and processing speed (g ¼ 0.29).
405
+ Earlier findings of studies on Yoga were aligned with the present
406
+ study in Stroop,54 DSST,55 DSF and DSB,56e59 TMT.45,58 Two recent
407
+ studies have demonstrated 12 weeks of yoga sessions were posi-
408
+ tively associated with acute increase in thalamic GABA levels,
409
+ improvement in mood and anxiety scales,60 and reduction in
410
+ depressive symptoms.61 When yoga postures performed with a gap
411
+ in between, provides relaxation to body, then ultimately enhances
412
+ cognition. Previous studies on yoga techniques which consisted of
413
+ sequence of yoga postures interspersed with relaxation techniques,
414
+ found improvement in selective attention,62 and inhibition of the
415
+ cortical region.63 Suryanamakara, an important part of intervention
416
+ given,
417
+ performed
418
+ with
419
+ rhythmic
420
+ breathing
421
+ develop
422
+ internal
423
+ awareness which might have influenced the cognitive outcome
424
+ measures in the present study.
425
+ Yoga breathing techniques have influence on brain cortex area.
426
+ For example, high frequency yoga breathing practice (Kapalabhati)
427
+ enhances blood flow to pre frontal cortex,64 and cortical electrical
428
+ activity measured through electroencephalogram.65 Pre-frontal
429
+ Table 2
430
+ Comparison of the tests executive functions of yoga and wait-list control group.
431
+ Yoga (n ¼ 40)
432
+ WLC (n ¼ 32)
433
+ Group*time
434
+ interaction
435
+ Pre
436
+ Post
437
+ Pre
438
+ Post
439
+ Mean ± SD
440
+ 95% C.I.
441
+ (LB to UB)
442
+ Mean ± SD
443
+ 95% C.I.
444
+ (LB to UB)
445
+ Mean ± SD
446
+ 95% C.I.
447
+ (LB to UB)
448
+ Mean ± SD
449
+ 95% C.I. (LB to UB)
450
+ STROOP_W
451
+ 62.18 ± 22.36
452
+ 54.95 to 69.40
453
+ 73.18 ± 21.67***
454
+ 65.84 to 80.51
455
+ 69.44 ± 23.59
456
+ 61.36 to 77.52
457
+ 72.06 ± 25.13
458
+ 63.86 to 80.27
459
+ .001
460
+ STROOP_C
461
+ 48.65 ± 10.57
462
+ 45.20 to 52.10
463
+ 54.95 ± 11.86***
464
+ 51.13 to 58.77
465
+ 53.47 ± 11.38
466
+ 49.61 to 57.33
467
+ 56.22 ± 12.44*
468
+ 51.95 to 60.49
469
+ .017
470
+ STROOP_CW
471
+ 27.90 ± 7.12
472
+ 25.67 to 30.13
473
+ 33.43 ± 8.71***
474
+ 30.75 to 36.10
475
+ 32.78 ± 6.99
476
+ 30.29 to 35.27
477
+ 34.50 ± 8.20**
478
+ 31.51 to 37.49
479
+ .034
480
+ DSST_T
481
+ 33.95 ± 8.40
482
+ 31.31 to 36.59
483
+ 39.05 ± 8.42***
484
+ 36.20 to 41.90
485
+ 33.22 ± 8.37
486
+ 30.26 to 36.18
487
+ 35.94 ± 9.77
488
+ 32.75 to 39.13
489
+ .201
490
+ DSST_W
491
+ 2.13 ± 2.03
492
+ 1.53 to 2.72
493
+ 1.85 ± 2.62
494
+ 1.17 to 2.53
495
+ 1.72 ± 1.69
496
+ 1.05 to 2.38
497
+ 1.31 ± 1.42
498
+ 0.55 to 2.08
499
+ .843
500
+ DSST_N
501
+ 31.83 ± 8.52
502
+ 29.16 to 34.49
503
+ 37.20 ± 8.94***
504
+ 34.20 to 40.20
505
+ 31.22 ± 8.38
506
+ 28.24 to 34.20
507
+ 34.63 ± 10.22*
508
+ 31.27 to 37.98
509
+ .327
510
+ DS_F
511
+ 7.03 ± 1.51
512
+ 6.58 to 7.47
513
+ 9.40 ± 2.05***
514
+ 8.82 to 9.98
515
+ 8.19 ± 1.31
516
+ 7.69 to 8.69
517
+ 9.00 ± 1.50*
518
+ 8.36 to 9.64
519
+ .002
520
+ DS_B
521
+ 3.28 ± 1.18
522
+ 2.86 to 3.69
523
+ 4.70 ± 1.57***
524
+ 4.24 to 5.16
525
+ 3.56 ± 1.46
526
+ 3.10 to 4.02
527
+ 4.06 ± 1.32
528
+ 3.55 to 4.58
529
+ .011
530
+ DS_T
531
+ 10.30 ± 2.20
532
+ 9.60 to 11.00
533
+ 14.20 ± 3.05***
534
+ 13.34 to 15.06
535
+ 11.69 ± 2.28
536
+ 10.90 to 12.48
537
+ 13.03 ± 2.25**
538
+ 12.07 to 13.99
539
+ .000
540
+ TMT_A
541
+ 46.28 ± 15.27
542
+ 41.81 to 50.75
543
+ 37.25 ± 10.40***
544
+ 33.23 to 41.26
545
+ 41.45 ± 12.69
546
+ 36.44 to 46.45
547
+ 43.92 ± 15.18
548
+ 39.43 to 48.42
549
+ .000
550
+ TMT_B
551
+ 89.98 ± 32.80
552
+ 78.66 to 101.30
553
+ 72.50 ± 21.10***
554
+ 63.99 to 81.00
555
+ 95.99 ± 39.45
556
+ 83.33 to 108.65
557
+ 86.65 ± 32.90
558
+ 77.14 to 96.16
559
+ .242
560
+ STROOP_W ¼ Stroop Word, STROOP_C ¼ Stroop Color, STROOP_CW ¼ Stroop Color Word, DSST_T ¼ Digit Symbol Substitution Total Score, DSST_W ¼ Digit Symbol Sub-
561
+ stitution Wrong Score, DSST_N ¼ Digit Symbol Substitution Net Score, DS_F ¼ Digit Span Forward, DS_B ¼ Digit Span Backward, DS_T ¼ Digit Span Total, TMT_A ¼ Trial Making
562
+ Test A, TMT_B ¼ Trial Making Test B, YG ¼ Yoga Group, WLC ¼ Wait-List Control Group.
563
+ *p < 0.05, **p < 0.01, ***p < 0.001; pre compared with post.
564
+ S.P. Purohit, B. Pradhan / Journal of Traditional and Complementary Medicine 7 (2017) 99e105
565
+ 102
566
+ cortex is associated with memory, attention, and EF.66,67 Yoga
567
+ breathing (Pranayama) regulated the autonomic functions by
568
+ dominating sympathetic68e70 or parasympathetic tone71,72 based
569
+ on the types of techniques. Different yoga breathing techniques
570
+ were found to be important contributors for significant improve-
571
+ ment in various cognitive domains.57,73,74 Kapalabhati and Bhastrika
572
+ Pranayama had influence on auditory working memory, and central
573
+ neural processing and sensory-motor performance.75 Bhramari
574
+ Pranayama may enhance inhibition response and cognitive control
575
+ in healthy participants.76
576
+ Trataka is a yogic technique in which a person practices focusing
577
+ and defocusing on a chosen object.48 This improves the concen-
578
+ tration of mental thought process which channelizes action toward
579
+ given task/test. A recent study on Trataka for one month showed
580
+ there were beneficial effects by enhancing cognitive functions tests
581
+ and TMT_B in elderly participants.58 The mechanisms in Trataka
582
+ practice involve Dharana (focusing) and Dhyana (defocusing) which
583
+ also contributes in enhancing cognitive measures.
584
+ Strengths of the study arise from randomized design with use of
585
+ well-validated measures of EF while the raters and statistician were
586
+ blinded and the main limitation of the study includes, it was con-
587
+ ducted on adolescents belonging to one orphanage and the results
588
+ were not able to rule out the effect of diet and other school
589
+ activities. Improvement observed in WLC group may be due to test-
590
+ retest effect, uncontrolled physical activities in schools, time and
591
+ growth effect.
592
+ The study can be improvised in design by further reducing the
593
+ age range of participants, developing a Yoga Module especially for
594
+ orphans and also comparing the Yoga intervention with other kinds
595
+ of complementary alternative therapies such as Ayurveda, Natu-
596
+ ropathy for promotion of positive health for orphans.
597
+ 5. Conclusion
598
+ Evidence for the effectiveness of three months yoga on EF was
599
+ demonstrated in this study, which may be a useful tool for the
600
+ young orphans, to be practiced for cognitive health on a daily basis.
601
+ The sustained effect of Yoga on EF seen in the present study may
602
+ have potential implications on learning, classroom behavior and in
603
+ handling the adverse circumstances and stand as a preventive
604
+ measure for mental health problems.
605
+ Conflict of interest
606
+ None declared.
607
+ 3 months day to
608
+ day activities
609
+ Participants enrolled for the
610
+ study (n=135)
611
+ Excluded (n=55)
612
+ Based on the inclusion
613
+ and exclusion criteria
614
+ Participants recruited (n= 80)
615
+ Allocation
616
+ Randomization
617
+ Yoga group (n=40)
618
+ Wait–list controlled
619
+ group (n=40)
620
+ Retained (n=40)
621
+ No dropouts
622
+ Retained (n=32)
623
+ Dropout due to various reasons
624
+ (n=8)
625
+ 3 months Yoga
626
+ Program
627
+ Retained (n=40)
628
+ Retained (n=32)
629
+ Analysis
630
+ Fig. 1. Trial profile.
631
+ S.P. Purohit, B. Pradhan / Journal of Traditional and Complementary Medicine 7 (2017) 99e105
632
+ 103
633
+ Sources of support
634
+ Not funded.
635
+ Acknowledgment
636
+ We are thankful to the department of Psychology, SVYASA Yoga
637
+ University, Bangalore for providing the necessary support needed
638
+ for the research. We also thank Dr. Rajashree and Ms. Soubhagya
639
+ Laxmi and Ms. Jinsook, who helped me during various phases of the
640
+ work. We also would like to thank all the participants involved in
641
+ this project.
642
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643
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+ promotion of self-regulation as a means of preventing school failure. Dev
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724
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727
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728
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731
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734
+ 29. Bergman Nutley S. Development and Training of Higher Order Cognitive Functions
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736
+ xmlui/handle/10616/40459.
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+ 30. Holmes J, Gathercole SE, Dunning DL. Adaptive training leads to sustained
738
+ enhancement of poor working memory in children. Dev Sci. 2009;12:F9eF15.
739
+ 31. Karbach J, Kray J. How useful is executive control training? Age differences in
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+ near and far transfer of task-switching training. Dev Sci. 2009;12:978e990.
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742
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+ and fine arts camps for school children. Indian J Physiol Pharmacol. 2004;48:
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+ 353e356.
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+ 37. Sarang SP, Telles S. Changes in p300 following two yoga-based relaxation
754
+ techniques. Int J Neurosci. 2006;116:1419e1430.
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+ 38. Chaya MS, Nagendra H, Selvam S, Kurpad A, Srinivasan K. Effect of yoga on
756
+ cognitive abilities in schoolchildren from a socioeconomically disadvantaged
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+ background: a randomized controlled study. J Altern Complement Med.
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+ 2012;18:1e7.
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+ 39. Rangan R, Nagendra HR, Bhat GR. Planning ability improves in a yogic educa-
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+ tion system compared to a modern. Int J Yoga. 2008;1:60e65.
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+ 40. Krisanaprakornkit T, Ngamjarus C, Witoonchart C, Piyavhatkul N. Meditation
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+ therapies for attention-deficit/hyperactivity disorder (ADHD). Cochrane data-
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+ base Syst Rev. 2010. CD006507.
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+ 41. Harrison LJ. Sahaja yoga meditation as a family treatment programme for
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+ children with attention deficit-hyperactivity disorder. Clin Child Psychol Psy-
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+ chiatry. 2004;9:479e497.
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+ 42. Diamond A. Activities and programs that improve children's executive func-
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+ tions. Curr Dir Psychol Sci. 2012;21:335e341.
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+ 43. Jensen PS, Kenny DT. The effects of yoga on the attention and behavior of boys
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+ with Attention-Deficit/hyperactivity Disorder (ADHD). J Atten Disord. 2004;7:
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+ 205e216.
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+ 44. Chattha R, Nagarathna R, Padmalatha V, Nagendra HR. Effect of yoga on
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+ cognitive functions in climacteric syndrome: a randomised control study. BJOG.
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+ 2008;115:991e1000.
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+ 45. Prakash R, Dubey I, Abhishek P, Gupta SK, Rastogi P, Siddiqui SV. Long-term
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+ 2010;110(3 Pt 2):1139e1148.
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+ 46. Galantino ML, Galbavy R, Quinn L. Therapeutic effects of yoga for children: a
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+ systematic review of the literature. Pediatr Phys Ther. 2008;20:66e80.
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+ 47. Birdee GS, Yeh GY, Wayne PM, Phillips RS, Davis RB, Gardiner P. Clinical ap-
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+ plications of yoga for the pediatric population: a systematic review. Acad
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+ Pediatr. 2009;9:212e220.
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+ 48. Nagarathna R, Nagendra H. Integrated Approach of Yoga Therapy for Positive
784
+ Health. 3rd ed. Bangalore: Swami Vivekananda Yoga Prakashan; 2006.
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+ 49. Golden CJ, Freshwater SM, Zarabeth G, University NS. Stroop Color and Word
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+ Test Children's Version for Ages 5e14: A Manual for Clinical and Experimental
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+ Uses. Stoelting; 2003.
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+ 50. Lezak M, Howieson D, Loring D. Neuropsychological Assessment. Vol 5th Ed. New
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+ York: Oxford University Press; 2012.
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+ 51. Wechsler D. Wechsler Intelligence Scale for Children® e Fourth Edition (WISC®-
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+ IV). 2012.
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+ 52. Salthouse TA. The processing-speed theory of adult age differences in cogni-
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+ tion. Psychol Rev. 1996;103:403e428.
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+ 53. Gothe NP, Mc Auley E. Yoga and cognition: a meta-analysis of chronic and
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+ acute effects. Psychosom Med. 2015;77:784e797.
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+ 54. Telles S, Singh N, Bhardwaj AK, Kumar A, Balkrishna A. Effect of yoga or
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+ physical exercise on physical, cognitive and emotional measures in chil-
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+ dren: a randomized controlled trial. Child Adolesc Psychiatry Ment Health.
799
+ 2013;7:37.
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+ 55. Raghavendra BR, Telles S. Performance in attentional tasks following medita-
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+ tive focusing and focusing without meditation. Anc Sci Life. 2012;32:49e53.
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+ 56. Thakur GS, Kulkarni DD, Pant G. Immediate effect of nostril breathing on
803
+ memory performance. Indian J Physiol Pharmacol. 2011;55:89e93.
804
+ 57. Joshi M, Telles S. Immediate effects of right and left nostril breathing on verbal
805
+ and spatial scores. Indian J Physiol Pharmacol. 2008;52:197e200.
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+ 58. Talwadkar S, Jagannathan A, Raghuram N. Effect of trataka on cognitive func-
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+ tions in the elderly. Int J Yoga. 2014;7:96e103.
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+ S.P. Purohit, B. Pradhan / Journal of Traditional and Complementary Medicine 7 (2017) 99e105
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+ 104
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+ 59. Chandla SS, Sood S, Dogra R, Das S, Shukla SK, Gupta S. Effect of short-term
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+ practice of pranayamic breathing exercises on cognition, anxiety, general
812
+ well being and heart rate variability. J Indian Med Assoc. 2013;111:662e665.
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+ 60. Streeter CC, Whitfield TH, Owen L, et al. Effects of yoga versus walking on
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+ mood, anxiety, and brain GABA levels: a randomized controlled MRS study.
815
+ J Altern Complement Med. 2010;16:1145e1152.
816
+ 61. Streeter CC, Gerbarg P, Saper R. Yoga therapy associated with increased
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+ brain GABA levels and decreased depressive symptoms in subjects with
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+ major depressive disorder: a pilot study. BMC Complement Altern Med.
819
+ 2012;12:31.
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+ 62. Sarang SP, Telles S. Immediate effect of two yoga-based relaxation techniques
821
+ on performance in a letter-cancellation task. Percept Mot Ski. 2007;105:
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+ 379e385.
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+ 63. Subramanya P, Telles S. Changes in midlatency auditory evoked potentials
824
+ following two yoga-based relaxation techniques. Clin EEG Neurosci. 2009;40:
825
+ 190e195.
826
+ 64. Bhargav H, Nagendra HR, Gangadhar BN, Nagarathna R. Frontal hemodynamic
827
+ responses to high frequency yoga breathing in schizophrenia: a functional
828
+ near-infrared spectroscopy study. Front Psychiatry. 2014;5:29.
829
+ 65. Stancak A, Alghamdi J, Nurmikko TJ. Cortical activation changes during
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+ repeated laser stimulation: a magnetoencephalographic study. PLoS One.
831
+ 2011;6:e19744.
832
+ 66. Gray JR, Braver TS, Raichle ME. Integration of emotion and cognition in the
833
+ lateral prefrontal cortex. Proc Natl Acad Sci U S A. 2002;99:4115e4120.
834
+ 67. West RL. An application of prefrontal cortex function theory to cognitive aging.
835
+ Psychol Bull. 1996;120:272e292.
836
+ 68. Telles S, Singh N, Balkrishna A. Heart rate variability changes during high
837
+ frequency yoga breathing and breath awareness. Biopsychosoc Med. 2011;5:
838
+ 4.
839
+ 69. Raghuraj P, Ramakrishnan AG, Nagendra HR, Telles S. Effect of two selected
840
+ yogic breathing techniques of heart rate variability. Indian J Physiol Pharmacol.
841
+ 1998;42:467e472.
842
+ 70. Veerabhadrappa SG, Baljoshi VS, Khanapure S, et al. Effect of yogic bellows on
843
+ cardiovascular autonomic reactivity. J Cardiovasc Dis Res. 2011;2:223e227.
844
+ 71. Pramanik T, Pudasaini B, Prajapati R. Immediate effect of a slow pace breathing
845
+ exercise Bhramari pranayama on blood pressure and heart rate. Nepal Med Coll
846
+ J. 2010;12:154e157.
847
+ 72. Raghuraj P, Telles S. Immediate effect of specific nostril manipulating yoga
848
+ breathing practices on autonomic and respiratory variables. Appl Psychophysiol
849
+ Biofeedback. 2008;33:65e75.
850
+ 73. Bhavanani AB, Madanmohan, Udupa K. Acute effect of Mukh bhastrika (a yogic
851
+ bellows type breathing) on reaction time. Indian J Physiol Pharmacol. 2003;47:
852
+ 297e300.
853
+ 74. Telles S, Raghuraj P, Maharana S, Nagendra HR. Immediate effect of three yoga
854
+ breathing techniques on performance on a letter-cancellation task. Percept Mot
855
+ Ski. 2007;104(3 Pt 2):1289e1296.
856
+ 75. Sharma VK, M R, S V, et al. Effect of fast and slow pranayama practice on
857
+ cognitive functions in healthy volunteers. J Clin Diagn Res. 2014;8:10e13.
858
+ 76. Rajesh SK, Ilavarasu JV, Srinivasan TM. Effect of Bhramari Pranayama on
859
+ response inhibition: evidence from the stop signal task. Int J Yoga. 2014;7:
860
+ 138e141.
861
+ S.P. Purohit, B. Pradhan / Journal of Traditional and Complementary Medicine 7 (2017) 99e105
862
+ 105
subfolder_0/Effect of yoga therapy on facial emotion recognition deficits, symptoms and functioning in patients with schizophrenia.txt ADDED
@@ -0,0 +1,766 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Effect of yoga therapy on facial emotion
2
+ recognition deficits, symptoms and
3
+ functioning in patients with schizophrenia
4
+ Behere RV, Arasappa R, Jagannathan A, Varambally S,
5
+ Venkatasubramanian G, Thirthalli J, Subbakrishna DK, Nagendra HR,
6
+ Gangadhar BN. Effect of yoga therapy on facial emotion recognition
7
+ deficits, symptoms and functioning in patients with schizophrenia.
8
+ Objective: Facial emotion recognition deficits have been consistently
9
+ demonstrated in schizophrenia and can impair socio-occupational
10
+ functioning in these patients. Treatments to improve these deficits in
11
+ antipsychotic-stabilized patients have not been well studied. Yoga
12
+ therapy has been described to improve functioning in various domains
13
+ in schizophrenia; however, its effect on FERD is not known.
14
+ Method: Antipsychotic-stabilized patients randomized to receive Yoga
15
+ (n = 27), Exercise (n = 17) or Waitlist group (n = 22) were assessed
16
+ at baseline, 2nd month, and 4th month of follow-up by raters blind to
17
+ group status. Assessments included Positive and Negative Syndrome
18
+ Scale (PANSS), Socio-Occupational Functioning Scale (SOFS), and
19
+ Tool for Recognition of Emotions in Neuropsychiatric DisorderS
20
+ (TRENDS).
21
+ Results: There was a significant positive correlation between baseline
22
+ FERD and socio-occupational functioning (r = 0.3, P = 0.01).
23
+ Paired samples t test showed significant improvement in positive and
24
+ negative symptoms, socio-occupational functioning and performance
25
+ on TRENDS (P < 0.05) in the Yoga group, but not in the other two
26
+ groups. Maximum improvement occurred at the end of 2 months, and
27
+ improvement in positive and negative symptoms persisted at the end of
28
+ 4 months.
29
+ Conclusion: Yoga therapy can be a useful add-on treatment to improve
30
+ psychopathology, FERD, and socio-occupational functioning in
31
+ antipsychotic-stabilized patients with schizophrenia.
32
+ R. V. Behere1, R. Arasappa1,
33
+ A. Jagannathan2, S. Varambally1,
34
+ G. Venkatasubramanian1, J.
35
+ Thirthalli1, D. K. Subbakrishna3,
36
+ H. R. Nagendra4, B. N. Gangadhar1
37
+ Departments of 1Psychiatry, 2Psychiatric Social Work,
38
+ 3Biostatistics, National Institute of Mental Health and
39
+ Neurosciences, Bangalore and 4Swami Vivekananda
40
+ Yoga Anusandhana Samsthana (SVYASA) University,
41
+ Bangalore, India
42
+ Key words: schizophrenia; treatment; outcome
43
+ B. N. Gangadhar, Professor, Department of Psychiatry,
44
+ National Institute of Mental Health and Neurosciences,
45
+ Bangalore-560029, India.
46
+ E-mail: [email protected]
47
+ Accepted for publication August 20, 2010
48
+ Significant outcomes
49
+ • Yoga as an add-on therapy improved psychopathology, emotion recognition deficits, and socio-
50
+ occupational functioning in antipsychotic-stabilized patients with schizophrenia in comparison with
51
+ Physical Exercise and Waitlist groups.
52
+ • The maximum change in variables occurred at the end of 2nd month of follow-up in the Yoga group
53
+ and the benefits obtained persisted at the end of 4th month of follow-up.
54
+ • Facial emotion recognition deficits were associated with poorer socio-occupational functioning at
55
+ baseline.
56
+ Acta Psychiatr Scand 2011: 123: 147–153
57
+ All rights reserved
58
+ DOI: 10.1111/j.1600-0447.2010.01605.x
59
+  2010 John Wiley & Sons A/S
60
+ ACTA PSYCHIATRICA
61
+ SCANDINAVICA
62
+ 147
63
+ Introduction
64
+ Schizophrenia is a clinical syndrome characterized
65
+ by abnormalities in cognition, perception and
66
+ behaviour. Recently, deficits in the sphere of
67
+ social cognition are being increasingly recognized
68
+ in schizophrenia (1). Facial emotion recognition
69
+ deficits (FERD) are an important component of
70
+ impairment in social cognition (2). FERD have
71
+ been consistently demonstrated in patients with
72
+ schizophrenia (3, 4). These deficits have been
73
+ demonstrated for negative emotions of fear and
74
+ anger (5, 6).
75
+ Facial emotion recognition deficits can lead to
76
+ impairment in interpersonal communication and
77
+ may underlie difficulties in social adjustment (7).
78
+ These deficits are also associated with poor work
79
+ and global functioning, suggesting that affect
80
+ recognition is an important aspect of psychosocial
81
+ and occupational functioning in stable out-patients
82
+ (8). Hence, interventions to improve FERD can
83
+ enhance the socio-occupational functioning in
84
+ schizophrenia.
85
+ Studies
86
+ have
87
+ shown
88
+ that
89
+ FERD
90
+ could
91
+ be
92
+ improved by behavioural interventions like cogni-
93
+ tive
94
+ enhancement
95
+ training
96
+ (9).
97
+ Recently,
98
+ we
99
+ reported that risperidone treatment can improve
100
+ FERD in drug-naı¨ve subjects
101
+ (10). However,
102
+ FERD have been described as a residual deficit in
103
+ schizophrenia and have been documented in anti-
104
+ psychotic-stabilized patients (11). The scope of the
105
+ current conventional treatments for residual defi-
106
+ cits is limited. Yoga is a traditional Indian system
107
+ used in alternative and complementary medicine.
108
+ In a randomized controlled trial, it has been found
109
+ to improve negative symptoms and functioning in
110
+ antipsychotic-stabilized patients with schizophre-
111
+ nia (12).
112
+ To date, there have been no studies on the effect
113
+ of yoga as an add-on treatment for FERD.
114
+ Aims of the study
115
+ To study the effect of yoga as an add-on treatment
116
+ on emotion recognition deficits, psychopathology,
117
+ and socio-occupational functioning in antipsy-
118
+ chotic-stabilized patients with schizophrenia.
119
+ Material and methods
120
+ Sample
121
+ Patients with a diagnosis of schizophrenia (DSM
122
+ IV), who were on regular follow-up and willing to
123
+ give consent for the study, were recruited from the
124
+ Outpatient services of the Department of Psychi-
125
+ atry, NIMHANS. A qualified psychiatrist con-
126
+ firmed
127
+ the
128
+ diagnosis
129
+ independently
130
+ based
131
+ on
132
+ clinical interview, information obtained from care-
133
+ givers, and supportive information from case
134
+ records. A total of 91 patients were included in
135
+ the study with their age ranging from 18 to
136
+ 60 years and Clinical Global Impression (CGI)
137
+ score £3 (as assessed by the treating psychiatrist).
138
+ These patients were on stabilized antipsychotic
139
+ medications for 6 weeks or longer, as decided by
140
+ the treating psychiatrist, before being recruited
141
+ into the study and continued the same medication
142
+ until the completion of the study. Patients with
143
+ comorbid psychiatric disorders, medical or neuro-
144
+ logical illness
145
+ were excluded. The study was
146
+ approved by the ethics committee of the institute.
147
+ Procedure
148
+ Using computer-generated random numbers, 91
149
+ patients were allocated to three treatment groups:
150
+ Yoga (n = 34), Exercise (n = 31), and Waitlist
151
+ (n = 26). The numbers were not necessarily equal.
152
+ The variations in these numbers were not signifi-
153
+ cantly different from chance. The randomization
154
+ was performed by one of the authors in the study
155
+ (Dr JT). The raters were blind to the status, and
156
+ the raters were not involved in imparting yoga
157
+ therapy or exercise.
158
+ Yoga and Exercise groups received the yoga and
159
+ exercise training respectively from a trained yoga
160
+ instructor for a period of a month. For the next
161
+ 2 months, they practiced yoga or exercise at home.
162
+ The patients caregivers were instructed to monitor
163
+ the yoga therapy at home and keep a log of the
164
+ yoga sessions practiced. Patients in the Waitlist
165
+ group did not receive any add-on intervention.
166
+ Patients in all the three groups continued to receive
167
+ stable dose of antipsychotic medications until the
168
+ end of the study. As per study protocol, only those
169
+ Limitations
170
+ • Baseline matching of Waitlist and Yoga groups on parameters such as negative symptoms and Tool
171
+ for Recognition of Emotions in Neuropsychiatric DisorderS Accuracy Score may have improved the
172
+ methodology of the study.
173
+ • A longer duration of supervised yoga therapy by the trained yoga therapist may have produced more
174
+ robust results.
175
+ • The findings need to be replicated in a larger sample of patients.
176
+ Behere et al.
177
+ 148
178
+ patients who completed all assessments at the end
179
+ of the study duration were included in the final
180
+ data analysis. Those patients who dropped out or
181
+ those who required a change in dosage of antipsy-
182
+ chotics
183
+ during
184
+ the
185
+ study
186
+ duration
187
+ were
188
+ not
189
+ included. During follow-up assessments, number
190
+ of drop-outs was 7 in Yoga group, 14 in Exercise
191
+ group, and 4 in Waitlist group. Hence, the number
192
+ of patients who completed the study and included
193
+ in the final analysis was 27 in Yoga group, 17 in
194
+ Exercise group, and 22 in Waitlist group. The
195
+ drop-outs were not significantly different from the
196
+ final study sample in their baseline clinical and
197
+ demographic characteristics. The patients who
198
+ dropped out either had not practiced yoga at
199
+ home or did not come for follow-up assessments
200
+ because of logistical reasons. It is interesting to
201
+ note that none of the patients were excluded from
202
+ the initial sample for reason of change in dosage of
203
+ antipsychotic medication.
204
+ The yoga module developed by Swami Viveka-
205
+ nanda Yoga Anusandhana Samsthana (SVYASA)
206
+ was used. The techniques have been reported in an
207
+ earlier study (12); briefly, it consisted of loosening
208
+ exercises, breathing practices,
209
+ suryanamaskara,
210
+ sitting, supine, and prone posture asanas along
211
+ with pranayama and relaxation techniques. Med-
212
+ itation was not included in the module. The
213
+ exercises were adapted from the National Fitness
214
+ Corps – Handbook for Middle High and Higher
215
+ Secondary Schools. It consisted of brisk walking,
216
+ jogging, and exercises in standing and sitting
217
+ postures and relaxation. For further details regard-
218
+ ing the yoga and exercise techniques, please see
219
+ Appendix 1.
220
+ Patients socio-demographic data were collected
221
+ using semistructured data sheet. Their psychopa-
222
+ thology was assessed by Positive and Negative
223
+ Syndrome Scale (PANSS) (13). Socio-occupational
224
+ functioning was assessed by Socio-Occupational
225
+ Functioning Scale (SOFS) (14). Their emotion
226
+ recognition abilities were assessed using Tool for
227
+ Recognition
228
+ of
229
+ Emotions
230
+ in
231
+ Neuropsychiatric
232
+ DisorderS (TRENDS) (15). This is a culturally
233
+ sensitive, ecologically valid tool, consisting of 52
234
+ static (still) and 28 dynamic (video clip) images (i.e.
235
+ totally 80 images) of six basic emotions – happy,
236
+ sad, fear, anger, surprise, disgust, and a neutral
237
+ expression emoted by four experienced actors (one
238
+ young man, one young woman, one older man,
239
+ and one older woman). The performance on
240
+ TRENDS was assessed by calculating the total
241
+ number of images that were correctly indentified
242
+ out of a maximum of 80 and termed the TRENDS
243
+ Accuracy Score (TRACS). Patients were assessed
244
+ at the baseline, 2nd and 4th month of follow-up.
245
+ All assessments were made by raters who were
246
+ blind to the group status.
247
+ Statistical analysis
248
+ One-way anova was used to assess differences in
249
+ baseline clinical and demographic variables among
250
+ the three groups. The paired-samples t test was
251
+ used to assess the change in variables after the
252
+ study period in the individual groups. Pearsons
253
+ correlation analysis was performed to look at the
254
+ association between the clinical variables.
255
+ Results
256
+ On one-way anova, the subjects in all three groups
257
+ were comparable on age, sex, and duration of
258
+ illness. The three groups differed significantly on
259
+ baseline negative symptoms (F = 4.8, P = 0.01)
260
+ and baseline TRACS (F = 3.2, P = 0.05) with the
261
+ Yoga group having greater negative symptom
262
+ score and lower TRACS (Table 1).
263
+ Change in variables between baseline and 2nd
264
+ month follow-up and baseline and 4th month
265
+ follow-up in the individual groups was examined
266
+ using paired-samples t test (Table 2). In the Yoga
267
+ group, there was significant change in positive and
268
+ negative symptoms and TRACS. The improvement
269
+ continued to remain significant even after the 4th
270
+ month assessments. The improvement in positive
271
+ and negative symptoms and SOFS score remained
272
+ significant after applying Bonferroni correction for
273
+ multiple comparisons. There were no significant
274
+ changes in variables in either the Exercise or the
275
+ Waitlist groups. The maximum change in variables
276
+ occurred at the 2nd month of follow-up. On
277
+ correlation analysis, it was observed that lower
278
+ baseline scores on TRACS correlated with poorer
279
+ Table 1. One-way anova ⁄ chi-square analysis of baseline clinical and demographic variables in patient groups
280
+ Variable
281
+ Yoga (Mean € SD)
282
+ Exercise (Mean € SD)
283
+ Waitlist (Mean € SD)
284
+ F ⁄ (v2)
285
+ P
286
+ Age (years)
287
+ 31.3 € 9.3
288
+ 30.2 € 8.0
289
+ 33.6 € 9.9
290
+ 0.74
291
+ 0.5
292
+ Duration of illness (months)
293
+ 126.2 € 101.6
294
+ 86.6 € 93.1
295
+ 121.6 € 108.6
296
+ 0.82
297
+ 0.4
298
+ Sex (M : F)
299
+ 18 : 9
300
+ 14 : 3
301
+ 15 : 7
302
+ 1.4
303
+ 0.5
304
+ Mean dosage of antipsychotic and
305
+ [range] (CPZ equivalents in mg ⁄ day)
306
+ 335.0 € 205.3 [400]
307
+ 297.9 € 150.9 [300]
308
+ 340.0 € 172.4 [675]
309
+ 0.21
310
+ 0.8
311
+ Effect of yoga therapy on patients with schizophrenia
312
+ 149
313
+ socio-occupational functioning as measured by
314
+ SOFS (r = 0.3, P = 0.01). There was no signifi-
315
+ cant correlation between TRACS and positive or
316
+ negative symptoms. There was no significant cor-
317
+ relation between change in negative symptoms and
318
+ change in TRACS.
319
+ Discussion
320
+ This is the first study to explore the effect of yoga
321
+ therapy on FERD. The results of this study show
322
+ that yoga therapy as an add-on to antipsychotic
323
+ treatment can be beneficial in improving positive
324
+ symptoms, negative symptoms, FERD, and socio-
325
+ occupational functioning. The results of this study
326
+ support the findings of an earlier study that
327
+ demonstrated yoga as an add-on therapy to benefit
328
+ several dimensions of outcome in schizophrenia (12).
329
+ Although there was a significant difference in
330
+ negative symptoms and TRACS between groups at
331
+ baseline,
332
+ there
333
+ was
334
+ no
335
+ significant
336
+ correlation
337
+ between
338
+ change
339
+ in
340
+ negative
341
+ symptoms
342
+ and
343
+ change in TRACS, suggesting that change in
344
+ negative symptoms alone might not have resulted
345
+ in improvement in emotion recognition scores. In
346
+ the Exercise and Waitlist groups, the negative
347
+ symptoms and FERD did not improve, supporting
348
+ the current understanding that these are residual
349
+ deficits in schizophrenia. The possibility of anti-
350
+ psychotic medication confounding the results was
351
+ minimized by ensuring stable antipsychotic dos-
352
+ ages for 6–8 weeks prior to study and throughout
353
+ the study duration. Hence, the finding of signifi-
354
+ cant improvement in these parameters in antipsy-
355
+ chotic-stabilized patients is of important clinical
356
+ relevance.
357
+ The correlation between FERD and socio-occu-
358
+ pational functioning supports findings of earlier
359
+ studies (7). Impairment in facial emotion recogni-
360
+ tion abilities can impair the ability to interact in
361
+ social
362
+ situations and
363
+ hence
364
+ can
365
+ affect
366
+ socio-
367
+ occupational functioning (16). However, interven-
368
+ tions to improve these deficits are limited. We
369
+ recently reported risperidone to improve FERD in
370
+ antipsychotic-naı¨ve schizophrenia (10). Structured
371
+ interventions such as cognitive enhancement ther-
372
+ apy have also been described to improve these
373
+ deficits (9). However, these interventions can be
374
+ time-intensive, requiring trained mental health
375
+ professionals. Yoga therapy is a popular alterna-
376
+ tive system of medicine, and resources to obtain
377
+ this training are widely available in a developing
378
+ country like India, where mental health resources
379
+ are sparse. After an initial training period, patients
380
+ can continue practice at home, which can reduce
381
+ dependence on mental health resources. Interest-
382
+ ingly, benefits of yoga therapy that occurred at the
383
+ 2nd month of follow-up continued to persist even
384
+ at the 4th month. One genuine concern is the
385
+ monitoring of yoga practice at home. Although
386
+ patients and caregivers were instructed to maintain
387
+ a logbook of yoga practice, many of the patients
388
+ did not maintain the logbook as per our expecta-
389
+ tion. A longer duration of supervised yoga therapy
390
+ by the trained yoga therapist may have produced
391
+ more robust results.
392
+ Integration of conventional psychiatric treat-
393
+ ments with mind body practices is an emerging
394
+ field. An example of this is the recent study that
395
+ integrated yoga breath intervention with exposure
396
+ therapy in post-traumatic stress disorder and
397
+ depression in survivors of Tsunami (17). Hence, it
398
+ is important that yoga therapists should receive
399
+ training in mental health disorders to sensitize
400
+ them to the needs of the psychiatric population.
401
+ The mental health professionals should work in
402
+ close association with the yoga therapists, so that
403
+ they are readily available to handle the needs of the
404
+ patients, if they may arise. In this context, it is
405
+ interesting to note that in our study, none of the
406
+ Table 2. Paired–samples t test comparing change in variables from baseline to 2nd month$ and 4th month# of follow-up in individual patient groups
407
+ Group
408
+ Variables
409
+ Baseline
410
+ 2nd month
411
+ 4th month
412
+ t$ value
413
+ P$ value
414
+ t# value
415
+ P# value
416
+ Yoga
417
+ Positive symptoms
418
+ 15.1 € 11.7
419
+ 11.9 € 4.7
420
+ 12.1 € 5.4
421
+ 3.5
422
+ 0.002*
423
+ 2.8
424
+ 0.008*
425
+ Negative symptoms
426
+ 17.8 € 4.9
427
+ 14.7 € 3.9
428
+ 14.7 € 3.8
429
+ 5.1
430
+ <0.001*
431
+ 3.5
432
+ 0.002*
433
+ TRACS
434
+ 49.4 € 11.4
435
+ 54.1 € 11.7
436
+ 54.6 € 14.4
437
+ 2.3
438
+ 0.03*
439
+ 1.8
440
+ 0.09
441
+ SOFS score
442
+ 30.8 € 7.4
443
+ 25.1 € 6.4
444
+ 25.7 € 7.9
445
+ 4.4
446
+ <0.001*
447
+ 0.38
448
+ 0.7
449
+ Exercise group
450
+ Positive symptoms
451
+ 14.9 € 4.3
452
+ 13.5 € 4.7
453
+ 14.1 € 5.4
454
+ 1.5
455
+ 0.2
456
+ 0.6
457
+ 0.6
458
+ Negative symptoms
459
+ 14.8 € 3.9
460
+ 13.9 € 3.3
461
+ 13.5 € 4.4
462
+ 0.94
463
+ 0.4
464
+ 1.5
465
+ 0.2
466
+ TRACS
467
+ 51.3 € 10.7
468
+ 51.2 € 10.7
469
+ 52.8 € 10.4
470
+ 0.03
471
+ 0.9
472
+ 0.65
473
+ 0.5
474
+ SOFS score
475
+ 26.2 € 5.1
476
+ 23.9 € 4.7
477
+ 22.0 € 6.8
478
+ 1.9
479
+ 0.07
480
+ 1.3
481
+ 0.2
482
+ Waitlist group
483
+ Positive symptoms
484
+ 14.7 € 6.3
485
+ 12.9 € 5.2
486
+ 11.8 € 5.6
487
+ 1.7
488
+ 0.1
489
+ 2.02
490
+ 0.06
491
+ Negative symptoms
492
+ 14.3 € 3.7
493
+ 13.7 € 3.7
494
+ 13.7 € 3.6
495
+ 0.61
496
+ 0.6
497
+ 0.65
498
+ 0.52
499
+ TRACS
500
+ 56.9 € 9.4
501
+ 58.4 € 8.9
502
+ 53.4 € 16.4
503
+ 0.74
504
+ 0.5
505
+ 0.99
506
+ 0.3
507
+ SOFS score
508
+ 27.1 € 6.6
509
+ 24.9 € 6.1
510
+ 25.2 € 5.4
511
+ 2.1
512
+ 0.05*
513
+ 0.27
514
+ 0.8
515
+ SOFS, Socio-Occupational Functioning Scale; TRACS, TRENDS Accuracy Score; TRENDS, Tool for Recognition of Emotions in Neuropsychiatric Disorders.
516
+ *Significance at P < 0.05.
517
+ Behere et al.
518
+ 150
519
+ patients had worsening of positive symptoms
520
+ during the duration of yoga therapy. Further,
521
+ none of the patients required increase in dose of
522
+ antipsychotics. This probably suggests that yogas-
523
+ anas and breathing techniques can be practiced by
524
+ patients with schizophrenia without worsening of
525
+ psychotic experiences.
526
+ In conclusion, yoga as an add-on treatment
527
+ improves positive and negative symptoms, and
528
+ emotion
529
+ recognition
530
+ abilities
531
+ in
532
+ antipsychotic-
533
+ stabilized patients with schizophrenia, which in
534
+ turn might improve their socio-occupational func-
535
+ tioning. Further systematic studies are needed to
536
+ study the beneficial effects of yoga in patients with
537
+ schizophrenia and their potential neurobiological
538
+ mechanisms.
539
+ Acknowledgement
540
+ This study was supported by AYUSH grant awarded to Dr BN
541
+ Gangadhar vide letter no. Z.31018/1/2006-Y&N/R&P(Ay)/
542
+ EMR. The authors thank the anonymous reviewers for the
543
+ thorough review of the manuscript that has helped immensely
544
+ in improving the quality of the manuscript.
545
+ Declaration of interest
546
+ There is no conflict of interest to declare by any of the authors
547
+ in relation to this manuscript. None of the authors are
548
+ associated with any pharmaceutical companies by way of
549
+ being on speakers list of pharmaceutical companies, receiving
550
+ grants from industry or being members of pharmaceutical
551
+ advisory boards.
552
+ References
553
+ 1. Brune M. Emotion recognition, theory of mind, and social
554
+ behavior in schizophrenia. Psychiatry Res 2005;133:135–
555
+ 147.
556
+ 2. Grady CL, Keightley ML. Studies of altered social cogni-
557
+ tion in neuropsychiatric disorders using functional neu-
558
+ roimaging. Can J Psychiatry 2002;47:327–336.
559
+ 3. Mandal MK, Pandey R, Prasad AB. Facial expressions of
560
+ emotions and schizophrenia: a review. Schizophr Bull
561
+ 1998;24:399–412.
562
+ 4. Bediou B, Krolak-Salmon P, Saoud M et al. Facial expres-
563
+ sion and sex recognition in schizophrenia and depression.
564
+ Can J Psychiatry 2005;50:525–533.
565
+ 5. Kohler CG, Turner TH, Bilker WB et al. Facial emotion
566
+ recognition in schizophrenia: intensity effects and error
567
+ pattern. Am J Psychiatry 2003;160:1768–1774.
568
+ 6. Mandal MK, Jain A, Haque-Nizamie S, Weiss U, Schneider F.
569
+ Generality and specificity of emotion-recognition deficit in
570
+ schizophrenic patients with positive and negative symp-
571
+ toms. Psychiatry Res 1999;87:39–46.
572
+ 7. Kee KS, Green MF, Mintz J, Brekke JS. Is emotion pro-
573
+ cessing a predictor of functional outcome in schizophrenia?
574
+ Schizophr Bull 2003;29:487–497.
575
+ 8. Hofer A, Benecke C, Edlinger M et al. Facial emotion
576
+ recognition and its relationship to symptomatic, subjective,
577
+ and functional outcomes in outpatients with chronic
578
+ schizophrenia. Eur Psychiatry 2009;24:27–32.
579
+ 9. Hogarty GE, Flesher S. Practice principles of cognitive
580
+ enhancement therapy for schizophrenia. Schizophr Bull
581
+ 1999;25:693–708.
582
+ 10. Behere RV, Venkatasubramanian G, Arasappa R, Reddy N,
583
+ Gangadhar BN. Effect of risperidone on emotion recog-
584
+ nition deficits in antipsychotic-naive schizophrenia: a
585
+ short-term follow-up study. Schizophr Res 2009;113:72–
586
+ 76.
587
+ 11. Kucharska-Pietura K, David AS, Masiak M, Phillips ML.
588
+ Perception of facial and vocal affect by people with
589
+ schizophrenia in early and late stages of illness. Br J Psy-
590
+ chiatry 2005;187:523–528.
591
+ 12. Duraiswamy G, Thirthalli J, Nagendra HR, Gangadhar BN.
592
+ Yoga therapy as an add-on treatment in the management
593
+ of patients with schizophrenia–a randomized controlled
594
+ trial. Acta Psychiatr Scand 2007;116:226–232.
595
+ 13. Kay SR, Opler LA, Lindenmayer JP. The Positive and
596
+ Negative Syndrome Scale (PANSS): rationale and stan-
597
+ dardisation. Br J Psychiatry Suppl 1989;7:59–67.
598
+ 14. Saraswat N, Rao K, Subbakrishna DK, Gangadhar BN. The
599
+ Social Occupational Functioning Scale (SOFS): a brief
600
+ measure of functional status in persons with schizophrenia.
601
+ Schizophr Res 2006;81:301–309.
602
+ 15. Behere RV, Raghunandan VN, Venkatasubramanian G,
603
+ Subbakrishna
604
+ DK,
605
+ Jayakumar
606
+ PN,
607
+ Gangadhar
608
+ BN.
609
+ TRENDS: a Tool for Recogniton of Emotions in Neuro-
610
+ psychiatric DisorderS. Indian J Psychol Med 2008;30:
611
+ 32–38.
612
+ 16. Hooker C, Park S. Emotion processing and its relationship
613
+ to social functioning in schizophrenia patients. Psychiatry
614
+ Res 2002;112:41–50.
615
+ 17. Descilo T, Vedamurtachar A, Gerbarg PL et al. Effects of a
616
+ yoga breath intervention alone and in combination with an
617
+ exposure therapy for post-traumatic stress disorder and
618
+ depression in survivors of the 2004 South-East Asia tsu-
619
+ nami. Acta Psychiatr Scand 2010;121:289–300.
620
+ Appendix: Yoga therapy and physical exercise modules
621
+ Appendix A: The integrated yoga therapy module; duration: 1 h
622
+ I. Shithileekarana vyayama (loosening exercises)
623
+ (1) Jogging-2 min
624
+ (2) Mukha dhouti (cleansing through a single blast breath)
625
+ 30 s
626
+ (3) Twisting – 1 min
627
+ (4) Hand stretch breathing – 2 min
628
+ (5) Forward and backward bending – 1 min
629
+ (6) Tiger Breathing: nine rounds 1 min
630
+ (7) Cycling – 1 min
631
+ (8) Sashankasana (moon posture) breathing – 1 min
632
+ (9) Dandasana (staffposture) – 30 s
633
+ II Asanas:
634
+ II A. Suryanamaskar (sun salutation) (12 rounds) – 6 min
635
+ Effect of yoga therapy on patients with schizophrenia
636
+ 151
637
+ II B. Instant relaxation technique (IRT) 1 min
638
+ Shavasana (corpse posture) – this involves progressively
639
+ tensing all the muscles of the body in 15 s, relaxing all of
640
+ them instantaneously and staying relaxed for 45 s
641
+ II C. Sitting posture asanas:
642
+ II C.1. Vakrasana (twist posture) – 30 s
643
+ II C.2. Prasarita pada paschimatanasana (stretching of back
644
+ with stretched legs) – 1 min
645
+ II C.3. Ustrasana (camel posture) – 1 min
646
+ II D. Prone posture asanas:
647
+ II D.1. Bhujangasana (cobra posture) – 1 min
648
+ II D.2. Shalabhasana (locust posture) – 1 min
649
+ II D.3. Dhanurasana (bow posture) – 1 min
650
+ II E. Supine posture asanas:
651
+ II E.1. Sarvangasana (shoulder stand) – 3 min
652
+ II E.2. Matsyasana (fish posture) – 1 min
653
+ III Breathing exercises:
654
+ III A. Kapalabhati (cleansing breath exercise): 60–80 rounds –
655
+ 2 min
656
+ III B. Sectional (abdominal, thoracic, clavicular, and full
657
+ yogic) breathing: each five rounds – 4 min
658
+ III C.
659
+ Nadi-shuddi
660
+ pranayama
661
+ (balancing
662
+ breath):
663
+ nine
664
+ rounds – 2 min
665
+ III D. Nadanusandhana (feeling of inner sound while chanting
666
+ A, U, M) each nine rounds – 10 min
667
+ IV Quick relaxation technique (QRT) – 3 min. This involves
668
+ adopting
669
+ Shavasana
670
+ and
671
+ three
672
+ phases
673
+ of
674
+ observing
675
+ abdominal movements, synchronizing them with deep
676
+ breathing, and feeling of energy and collapsing all the
677
+ muscles
678
+ Appendix B: Physical exercises: adopted from the National
679
+ Fitness Corps – Handbook for Middle High and Higher Secondary
680
+ Schools (29); duration: 1 h*
681
+ I Brisk walking – 10 min
682
+ II Jogging – 5 min
683
+ III Exercise in standing posture – 20 min
684
+ III A. Position: attention
685
+ (1) Raising the arms forward to the shoulder level palms facing
686
+ each other, fingers together
687
+ (2) Bending arms, bringing fists in the armpits with elbows
688
+ pushed backward
689
+ (3) Returning to position one
690
+ (4) Returning to position of attention
691
+ Yoga therapy for the management of patients with schizo-
692
+ phrenia
693
+ III B. Position: attention
694
+ (1) Raising the arms forward to the shoulder level, fingers
695
+ together
696
+ (2) Flinging arms sideward to the shoulder level, palms facing
697
+ the ground heel raise
698
+ (3) Returning to position one
699
+ (4) Returning to position of attention
700
+ III C. Position: attention
701
+ (1) Stepping the left leg forward and raising the arms forward,
702
+ palms are kept facing each other and fingers are kept
703
+ together
704
+ (2) Flinging arms sideward at the shoulder level, palms facing
705
+ the ground and lounging left leg forward
706
+ (3) Returning to position one
707
+ (4) Returning to position of attention
708
+ III D. Position: attention
709
+ (1) Raising arms forward to the shoulder level palms facing
710
+ each other with the fingers together
711
+ (2) Raising the arms upward, palms facing each other and with
712
+ fingers together heels are raised
713
+ (3) Returning to position one
714
+ (4) Returning to position of attention
715
+ III E. Position: attention
716
+ (1) Raising arms sideward, shoulder level, palms facing the
717
+ ground, fingers together
718
+ (2) Squatting on toes, flinging arms upwards, palms facing
719
+ each other
720
+ (3) Returning to position one
721
+ (4) Returning to position of attention
722
+ III F. Position: attention
723
+ (1) Jumping feet astride, raising arms sideward, palms facing
724
+ the ground
725
+ (2) Flinging arms upward above head with a clap and jumping
726
+ feet together
727
+ Behere et al.
728
+ 152
729
+ (3) Returning to position one
730
+ (4) Returning to position of attention
731
+ III G. Position: attention
732
+ (1) Hands forward upward rise to shoulder level, palms facing
733
+ each other, heels raise
734
+ (2) Half squat, chest firm (hands bent at elbows) palm
735
+ downward, middle fingers1 ⁄ 2¢¢ distance from each other
736
+ (3) Hands sideward raise, knees straight
737
+ III H. Position: attention
738
+ (1) Hands forward raised, half-knee bent (no gap between
739
+ knees)
740
+ (2) Back to position
741
+ (3) Hands sideward raised, half-knee bent
742
+ (4) Back to position.
743
+ IV. Sitting posture exercises – 20 min
744
+ IV A. Position: cross-legged sitting, hands slanting
745
+ (1) Hands rise over had slowly without bending at elbows,
746
+ palms touching each other, fingers extended upward
747
+ (2) Elbows bend, palms touching head
748
+ (3) Same as 1
749
+ (4) Back to position
750
+ IV B. Position: cross-legged sitting, hands slanting
751
+ (1) Hands sideward, upward, elbows bend, palms touch the
752
+ head
753
+ (2) Trunk bend, head downward
754
+ (3) Same as 1
755
+ (4) Back to position
756
+ IV C. Position: cross-legged sitting, hands slanting
757
+ Chest firm (i.e. elbow bent palms downward and in front of
758
+ the chest)
759
+ (1) Elbows backward press (chest expanding action)
760
+ (2) Hands forward sideward backward press
761
+ IV D. Position: cross-legged sitting, hands sideward slanting.
762
+ 1–3: hands upward, downward swing, clap over head
763
+ *The therapist would give 2 min time in between the different
764
+ exercises with a non-specific instruction, just relax now.
765
+ Effect of yoga therapy on patients with schizophrenia
766
+ 153
subfolder_0/Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes_ An Exploratory Study.txt ADDED
@@ -0,0 +1,256 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ 1/27/2021
2
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
3
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
4
+ 1/11
5
+ Int J Yoga. 2017 Sep-Dec; 10(3): 167–170.
6
+ doi: 10.4103/0973-6131.213471: 10.4103/0973-6131.213471
7
+ PMCID: PMC5793012
8
+ PMID: 29422748
9
+ Effectiveness of Music Therapy on Focused Attention, Working
10
+ Memory and Stress in Type 2 Diabetes: An Exploratory Study
11
+ Indira Tumuluri, Shantala Hegde, and HR Nagendra
12
+ Division of Humanities, Swami Vivekananda Yoga Anusandhana Samsthana University, Bengaluru, Karnataka,
13
+ India
14
+ Department of Clinical Psychology, Neuropsychology Unit, NIMHANS, Bengaluru, Karnataka, India
15
+ Address for correspondence: Dr. Shantala Hegde, Department of Clinical Psychology, National Institute of
16
+ Mental Health and Neurosciences-Deemed University, Bengaluru - 560 029, Karnataka, India. E-mail:
17
18
+ Received 2016 Jul; Accepted 2016 Nov.
19
+ Copyright : © 2017 International Journal of Yoga
20
+ This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-
21
+ ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as
22
+ the author is credited and the new creations are licensed under the identical terms.
23
+ Abstract
24
+ Cognitive deficits are reported in diabetes mellitus type 2 (DM2). Previous research has shown that music-
25
+ based intervention can not only reduce hyperglycemia but also target cognitive functions as well as stress.
26
+ The aim of this exploratory study was to understand the effect of active participation in music therapy
27
+ (MT) on the cognitive deficits of DM2 patients. MT of twenty sessions was carried out with three
28
+ participants with DM2. Serum cortisol, perceived stress, Color Trail Test (1 and 2), and verbal n-back (1
29
+ and 2) tests were used to measure the outcomes. Feedback was taken for the subjective ratings and
30
+ satisfaction of the participants. Stress and cortisol reduced and focused attention and working memory
31
+ improved in varying degrees. Subjectively, participants reported having benefitted from the intervention.
32
+ This is the first attempt to investigate the effect of music-based intervention on cognitive function in DM2
33
+ patients using case study approach.
34
+ Keywords: Cortisol, focused attention, music therapy, perceived stress, working memory
35
+ Introduction
36
+ Type 2 diabetes (T2D) is a complex metabolic disorder leading to cognitive deficits and increased risk for
37
+ multiple clinical conditions such as dementia and stroke and several other micro- and macro-vascular
38
+ diseases.[1] High levels of psychological stress are also considered as one of the causal and maintaining
39
+ factors of this condition.[2] There is growing evidence of the effectiveness of music not only to improve
40
+ cognitive functions in conditions such as traumatic brain injuries,[3] stroke,[4] and dementia[5] but also in
41
+ the reduction of stress,[6,7] anxiety,[8] and cortisol production,[9] and increase in dopamine levels.[10]
42
+ With lifelong dependency on medication and likely physical side effects, there is a need to explore
43
+ intervention methods that can facilitate not only reduction of stress but also target cognitive dysfunction in
44
+ 1
45
+ 1
46
+ 1/27/2021
47
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
48
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
49
+ 2/11
50
+ T2D. Research on the effects of music therapy (MT) on stress has been reported. MT has reduced stress in
51
+ the students caused by a stressor[7] and anxiety and stress of T2D patients.[8] It is in the recent times with
52
+ evidence from neuro-musicology and music cognition that active as well as passive engagement in music
53
+ has shown to have positive effects on cognitive functions. There is no study hitherto examining the effects
54
+ of MT on not only stress but also cognitive functions. The aim of the present study was to examine the
55
+ effect of active participation in MT on the cognitive functioning of diabetes mellitus type 2 (DM2)
56
+ patients. In the first place, we sought to understand the influence of active participation in MT on memory
57
+ and focused attention, second, on cortisol and perceived stress, and finally on the subjective rating and
58
+ satisfaction. It is found that active music therapy (AMT) is more beneficial than passive listening.[11]
59
+ Singing improved the executive function of the children.[12] AMT is actively participating in MT by
60
+ singing or chanting or reciting. The objective of this exploratory study was to examine the effect of using
61
+ case series study design with pre-post evaluation.
62
+ Methods
63
+ The present study included three participants diagnosed with DM2 confirmed with the HbA1c levels.
64
+ Sociodemographic details of the participants are provided in Table 1. Written informed consent was taken
65
+ from the participants after the study was approved by the Institutional Ethics Committee, Swami
66
+ Vivekananda Yoga Anusandhana Samsthana, Bengaluru, Karnataka, India. MT was administered in
67
+ addition to their treatment as usual, i.e., regular medication for DM2. Levels of stress were measured
68
+ objectively by measuring serum cortisol, and the subjective evaluation of stress was measured using
69
+ Cohen's perceived stress scale (PSS). Each item was rated on a 5-point scale ranging from never (0) to
70
+ almost always (4). Positively worded items were reverse scored, and the ratings were summed, with higher
71
+ scores indicating more perceived stress. PSS-10 scores were obtained by reversing the scores on the four
72
+ positive items: For example, 0 = 4, 1 = 3, and 2 = 2, and then summing across all 10 items. Items 4, 5, 7,
73
+ and 8 are the positively stated items. Rensis's 10-point Likert scale was used to understand the rate of
74
+ satisfaction. Verbal working memory and focused attention were measured using verbal n-back 1 and 2
75
+ tasks (Rao et al., 2004) and Color Trail Tests (CTT) 1 and 2 (D’Elia and Satz). In n-back 1, the participant
76
+ responds to the repeated (9) consonants from thirty randomly ordered consonants common to multiple
77
+ Indian languages. In n-back 2, the participant responds whenever a consonant is repeated after an
78
+ intervening consonant. In CTT-1, the participant points out the randomly spread numbers from 1 to 25, odd
79
+ numbers in pink circles and even numbers in yellow ones in ascending order. In CTT-2, the participant
80
+ points out in ascending order the randomly arranged numbers from 1 to 25, leaving number 1, others
81
+ repeated once in pink and once in yellow circles. The main measure in this test is the time necessary to
82
+ complete the task. A semi-structured interview was carried out to know the participants’ experience with
83
+ the intervention. The interviews were video recorded. The serum tests were done by the National
84
+ Accreditation Board for Testing and Calibration Laboratories-accredited laboratory, Metropolis Health
85
+ Care Ltd. All measurements were administered pre- and post-intervention. Serum cortisol was measured
86
+ both the times (pre and post) in between 4.30 and 5 p.m. The experiment was carried out daily (excluding
87
+ Saturdays and Sundays) for 45 min. The protocol of MT is given in Table 2.
88
+ Detailed protocol of music therapy
89
+ The devotional songs were set for each day of the week. Every week, the same devotional songs were
90
+ repeated for familiarity. The participants’ individual songs were not repeated. The same piece of flute
91
+ music was played for all the sessions. There were total 20 sessions.
92
+ Results
93
+ The number of sessions attended by the participants were 16, 14, and 10 by cases 1, 2, and 3, respectively.
94
+ The period between the pre- and post-test is 1 month, weekly five sessions.
95
+ 1/27/2021
96
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
97
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
98
+ 3/11
99
+ In all the three cases, the cortisol level reduced after the therapy. PSS showed improvement in two cases
100
+ and no improvement in other case [Table 3]. Focused attention as assessed using the Color Trails Test 1
101
+ nominally improved in one case and deteriorated in two cases at postintervention. The performance
102
+ improved in two cases and showed no improvement in the other case in CTT2. In verbal n-back test 1, the
103
+ performance improved in two cases and did not improve in the other case. Performance on the verbal n-
104
+ back 2 did not improve in any case [Refer to Table 4a and b]. All the three patients enjoyed the
105
+ intervention and rated it as 9.5 satisfactory on 10-point Likert scale [Table 3]. Video interviews provided
106
+ the report of the benefits of active participation of the participants in MT.
107
+ Discussion
108
+ The present study aimed at exploring the effects of AMT on cognitive functions and perceived levels of
109
+ stress. In this study, all the three participants showed significant cognitive impairments in the domains of
110
+ focused attention and verbal working memory compared to age, education, and gender-matched Indian
111
+ norms[13] The 15 percentile score (1 standard deviation below the mean) was taken as the cutoff score.
112
+ [14] In the critical review study of, “Is Type II Diabetes Associated with an Increased Risk of Cognitive
113
+ Dysfunction?,” it was observed that patients with T2D had moderate degrees of cognitive impairment in
114
+ verbal memory. It was reported that a study which evaluated 28 T2D patients aged <55 years showed
115
+ poorer performance on the measures of memory and attention.[15] These deficits are due to neural slowing
116
+ and increased cortical atrophy,[16] with higher levels of HbA1c in the present study. As a result, the
117
+ cognitive task completion required greater time and had difficulty for the participants compared to the
118
+ normative performance expected for the Indian males in this group. The participants differed in the way
119
+ they responded to active music participation. Not all the three participants had consistent improvement on
120
+ all cognitive tasks. The group singing in lead and follow manner may have improved the verbal working
121
+ memory as group singing enhanced the mood of patients with chronic pain[17] and improved the mental
122
+ health and well-being of the participants of singing.[18] The inconsistent improvement in this study may
123
+ be due to the subjective emotional state at the time of measurement, or the cognitive functions perhaps
124
+ require much more focused intervention, or the intensity and duration of the present intervention was not
125
+ sufficient to bring about significant changes in the cognitive functions. However, the reduction in the
126
+ cortisol level shows that AMT is feasible to relieve stress as listening to music reduced cortisol
127
+ production[9] and relieved stress.[6,7] The interviews also provided the following subjective positive
128
+ responses to the AMT.
129
+ The video interviews were taken after 12 sessions
130
+ Interviews were transcribed
131
+ The gist of the interviews are provided below.
132
+ Case 1
133
+ It is a very good experience. I am feeling relaxed. The sessions are enjoyable. The therapy is very useful.
134
+ My singing improved. I love relaxation with flute music. I like the interactive sessions most. This therapy
135
+ should be spread. I feel the difference after the therapy.
136
+ Case 2
137
+ I am very happy to participate. The sessions are very interesting. I like the sequence of the songs. I enjoy
138
+ group singing. I feel calm after the session. It helps me to sleep. The songs are well coordinated. Nirvana
139
+ Shatakam singing is the most liked part for me. It makes me deeply relaxed and calm.
140
+ Case 3
141
+ th
142
+ 1/27/2021
143
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
144
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
145
+ 4/11
146
+ I feel much more relaxed. Blood sugar (fasting) reduced from 400 to 270. I like the singing and interaction
147
+ part.
148
+ The satisfaction of the participants and their willingness to attend AMT in future give support to the
149
+ administration of MT to other DM2 patients. The subjective reports and the PSS scores show that active
150
+ participation in music is a mood-elevating strategy which can enhance positive feelings. To substantiate its
151
+ role in cognitive functions, there is a need for long-term follow-up of cases with more focused intervention
152
+ with selected chants and musical content.
153
+ Conclusion
154
+ This is an exploratory study dealing with three cases
155
+ The results are inconsistent
156
+ In spite of poor cognitive performance, the positive subjective response and reduced PSS scores
157
+ provide a support to continue MT further
158
+ The lower level of cognitive functions may be due to higher levels of HbA1c
159
+ A randomized controlled trial study with larger cohort will be required to establish the findings
160
+ further.
161
+ Financial support and sponsorship
162
+ Liability release.
163
+ Conflicts of interest
164
+ There are no conflicts of interest.
165
+ References
166
+ 1. McCrimmon RJ, Ryan CM, Frier BM. Diabetes and cognitive dysfunction. Lancet. 2012;379:2291–9.
167
+ [PubMed: 22683129]
168
+ 2. Mooy JM, de Vries H, Grootenhuis PA, Bouter LM, Heine RJ. Major stressful life events in relation to
169
+ prevalence of undetected type 2 diabetes: The Hoorn study. Diabetes Care. 2000;23:197–201. [PubMed:
170
+ 10868831]
171
+ 3. Thaut MH, Gardiner JC, Holmberg D, Horwitz J, Kent L, Andrews G, et al. Neurologic music therapy
172
+ improves executive function and emotional adjustment in traumatic brain injury rehabilitation. Ann N Y
173
+ Acad Sci. 2009;1169:406–16. [PubMed: 19673815]
174
+ 4. Särkämö T, Tervaniemi M, Laitinen S, Forsblom A, Soinila S, Mikkonen M, et al. Music listening
175
+ enhances cognitive recovery and mood after middle cerebral artery stroke. Brain. 2008;131(Pt 3):866–76.
176
+ [PubMed: 18287122]
177
+ 5. Sakamoto M, Ando H, Tsutou A. Comparing the effects of different individualized music interventions
178
+ for elderly individuals with severe dementia. Int Psychogeriatr. 2013;25:775–84. [PMCID: PMC3605862]
179
+ [PubMed: 23298693]
180
+ 6. Thoma MV, La Marca R, Brönnimann R, Finkel L, Ehlert U, Nater UM. The effect of music on the
181
+ human stress response. PLoS One. 2013;8:e70156. [PMCID: PMC3734071] [PubMed: 23940541]
182
+ 7. Labbé E, Schmidt N, Babin J, Pharr M. Coping with stress: The effectiveness of different types of
183
+ music. Appl Psychophysiol Biofeedback. 2007;32:163–8. [PubMed: 17965934]
184
+ 1/27/2021
185
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
186
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
187
+ 5/11
188
+ 8. Mandel SE, Davis BA, Secic M. Effects of music therapy and music-assisted relaxation and imagery on
189
+ health-related outcomes in diabetes education: A feasibility study. Diabetes Educ. 2013;39:568–81.
190
+ [PubMed: 23771840]
191
+ 9. Khalfa S, Bella SD, Roy M, Peretz I, Lupien SJ. Effects of relaxing music on salivary cortisol level after
192
+ psychological stress. Ann N Y Acad Sci. 2003;999:374–6. [PubMed: 14681158]
193
+ 10. Ashby FG, Isen AM, Turken AU. A neuropsychological theory of positive affect and its influence on
194
+ cognition. Psychol Rev. 1999;106:529–50. [PubMed: 10467897]
195
+ 11. Rao TI, Nagendra HR. The effect of active and silent music interventions on patients with type 2
196
+ diabetes measured with electron photonic imaging technique. Int J Humanit Soc Sci. 2014;3:7–14.
197
+ 12. Moreno S, Bialystok E, Barac R, Schellenberg EG, Cepeda NJ, Chau T. Short-term music training
198
+ enhances verbal intelligence and executive function. Psychol Sci. 2011;22:1425–33.
199
+ [PMCID: PMC3449320] [PubMed: 21969312]
200
+ 13. Rao SL, Subbakrishna DK, Gopukumar K. NIMHANS Neuropsychology Battery-2004. Bangalore:
201
+ NIMHANS; 2004.
202
+ 14. Heaton RK, Grant I, Butters N, White DA, Kirson D, Atkinson JH, et al. The HNRC 500 –
203
+ Neuropsychology of HIV infection at different disease stages. HIV Neurobehavioral Research Center. J Int
204
+ Neuropsychol Soc. 1995;1:231–51. [PubMed: 9375218]
205
+ 15. Strachan MW, Deary IJ, Ewing FM, Frier BM. Is type II diabetes associated with an increased risk of
206
+ cognitive dysfunction? A critical review of published studies. Diabetes Care. 1997;20:438–45. [PubMed:
207
+ 9051402]
208
+ 16. McEwen BS. Stress and hippocampal plasticity. Annu Rev Neurosci. 1999;22:105–22. [PubMed:
209
+ 10202533]
210
+ 17. Kenny DT, Faunce G. The impact of group singing on mood, coping, and perceived pain in chronic
211
+ pain patients attending a multidisciplinary pain clinic. J Music Ther. 2004;41:241–58. [PubMed:
212
+ 15327342]
213
+ 18. Clift S, Nicol J, Raisbeck M, Whitmore C, Morrison I. Group singing, wellbeing and health: A
214
+ systematic mapping of research evidence. [Last cited on 2010 Oct 01];Univ Melb Refereed E J. 2010 2:1–
215
+ 15. Available from: http://www.education.unimelb.edu.au/__data/assets/pdf_file/0007/1105927/clift-
216
+ paper.pdf .
217
+ Figures and Tables
218
+ 1/27/2021
219
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
220
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
221
+ 6/11
222
+ Table 1
223
+ Details of the participants
224
+ 1/27/2021
225
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
226
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
227
+ 7/11
228
+ Table 2
229
+ Daily practice
230
+ Open in a separate window
231
+ 1/27/2021
232
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
233
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
234
+ 8/11
235
+ Table 3
236
+ Pre-and post-scores on the perceived stress scale, cortisol, and visual analog scale
237
+ 1/27/2021
238
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
239
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
240
+ 9/11
241
+ Table 4
242
+ Raw scores of verbal n-back 1 and 2 tests
243
+ 1/27/2021
244
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
245
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
246
+ 10/11
247
+ Table 4a
248
+ Raw scores of Color Trails Tests
249
+ 1/27/2021
250
+ Effectiveness of Music Therapy on Focused Attention, Working Memory and Stress in Type 2 Diabetes: An Exploratory Study
251
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793012/?report=printable
252
+ 11/11
253
+ Table 4b
254
+ Pre-and post-intervention percentile scores on the cognitive tests
255
+ Articles from International Journal of Yoga are provided here courtesy of Wolters Kluwer -- Medknow
256
+ Publications
subfolder_0/Effects of a Holistic Yoga Program on Endocrine Parameters in Adolescents with Polycystic.txt ADDED
@@ -0,0 +1,698 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ International Journal of Yoga  Vol. 5  Jul-Dec-2012
2
+ 112
3
+ depression and anxiety. Indeed, it has a significant effect
4
+ on adult women, resulting in diminished quality of life,
5
+ altered feminine identity, and dysfunction in the family
6
+ and work environment.[4‑6] Further, the risk of adolescents
7
+ with PCOS, who are at the height of identity development
8
+ and awareness of body image, having a more significant
9
+ disturbance in quality of life, cannot be overlooked.
10
+ Studies prove that PCOS women show high prevalence of
11
+ anxiety.[7] Kerchner et al.,[8] documented a prevalence of
12
+ 11.6% of anxiety syndromes in PCOS women. Also, there
13
+ is evidence to support the concept that anxiety is a risk
14
+ factor for the development of depressive disorders[9,10] and
15
+ suicide attempts[10,11] which have an increased prevalence
16
+ in PCOS patients.[12] Therefore, it is necessary to include
17
+ assessment of anxiety symptoms while diagnosing
18
+ adolescents with PCOS.
19
+ Lifestyle interventions are the first‑line effective treatment
20
+ for PCOS. Small changes in lifestyle are known to improve
21
+ INTRODUCTION
22
+ Polycystic ovarian syndrome (PCOS) is the most prevalent
23
+ female endocrine disorder with estimates ranging from
24
+ 2.2% to as high as 26%.[1,2] In a recent survey, we have
25
+ found a 9.13% prevalence of PCOS in south Indian
26
+ adolescent girls.[3]
27
+ Patients with PCOS face challenges to their feminine
28
+ identity including irregular menstrual cycles, hirsutism,
29
+ acne, acanthosis nigricans, obesity, and infertility all likely
30
+ to impact quality of life and mood and potentially precipitate
31
+ Context: Yoga techniques practiced for varying durations have been shown to reduce state anxiety. This was never assessed
32
+ in adolescents with polycystic ovarian syndrome (PCOS).
33
+ Aims: To compare the effect of a holistic yoga program with the conventional exercise program on anxiety level in adolescents
34
+ with PCOS.
35
+ Settings and Design: Ninety adolescent (15‑18 years) girls from a residential college in Andhra Pradesh, who satisfied the
36
+ Rotterdam criteria, were randomized into two groups.
37
+ Materials and Methods: Anxiety levels were assessed at inclusion and after 12 weeks of intervention wherein yoga group
38
+ practiced a holistic yoga module while the control group practiced a matching set of physical exercises (1 h/day, for 12 weeks).
39
+ Statistical Analysis Used: Mann‑Whitney U test was used to compare difference scores (delta change) between the two groups
40
+ Results: Changes in state anxiety after the intervention were nonsignificantly different between the two groups (P=0.243),
41
+ while changes after the intervention were significantly different between the two groups (P=0.002) for trait anxiety.
42
+ Conclusions: Twelve weeks of a holistic yoga program in adolescents with PCOS is significantly better than physical exercise
43
+ program in reducing anxiety symptoms.
44
+ Key words: Anxiety; polycystic ovarian syndrome; yoga.
45
+ Abstract
46
+ Effect of holistic yoga program on anxiety symptoms in
47
+ adolescent girls with polycystic ovarian syndrome:
48
+ A randomized control trial
49
+ Ram Nidhi, Venkatram Padmalatha1, Raghuram Nagarathna, Ram Amritanshu
50
+ Divison of Yoga and Life science, SVYASA University, 1Consultant Obstetrician and Gynecologist, Rangadore Memorial Hospital, Bengaluru, India
51
+ Addrses for correpondence: Ms. Nidhi Ram,
52
+ #19, Eknath Bhavan, Gavipuram Circle, Kempegowda Nagar, Bangalore ‑ 560 019, India.
53
+ E‑mail: [email protected]
54
+ Original Article
55
+ Access this article online
56
+ Website:
57
+ www.ijoy.org.in
58
+ Quick Response Code
59
+ DOI:
60
+ 10.4103/0973-6131.98223
61
+ 113
62
+ International Journal of Yoga  Vol. 5  Jul-Dec-2012
63
+ Nidhi, et al.: Effect of yoga on anxiety in adolescents with PCOS: RCT
64
+ symptoms and psychological well being. Two studies
65
+ have investigated the effect of exercise on psychological
66
+ outcomes in PCOS. A small, non‑randomized study in
67
+ overweight and obese women with PCOS reported that a
68
+ six‑month, self‑directed brisk walking program improved
69
+ body image distress scores.[13] Recently, Thomson et al.,[14]
70
+ observed improvements in quality of life and depression
71
+ in overweight women with PCOS after 20  weeks
72
+ following an energy‑restricted diet with and without
73
+ exercise  (aerobic  only or combined aerobic‑resistance
74
+ exercise).
75
+ Yogic life style, a form of holistic mind‑body medicine,
76
+ developed thousands of years ago, is simple and
77
+ can be practiced by all. There is mounting evidence
78
+ that Yoga reduces anxiety symptoms. A study on
79
+ cyclic meditation on healthy male volunteers shows
80
+ reduction in state anxiety as assessed by Spielberger’s
81
+ inventory.[15] Also, a two‑month (90 min twice a week)
82
+ yoga intervention showed a significant decrease in
83
+ state and trait anxiety in women suffering from anxiety
84
+ disorders.[16] However, till date, the effects of a yoga
85
+ practice have not been assessed in adolescents with
86
+ PCOS. The present study was planned to assess the
87
+ effect of yoga on anxiety level in adolescent girls with
88
+ PCOS.
89
+ MATERIALS AND METHODS
90
+ Participants
91
+ The study was carried out on adolescent girls aged 15 to
92
+ 18 years from a residential college in Anantapur, Andhra
93
+ Pradesh, India. Those who satisfied the Rotterdam
94
+ criterion (2/3 of the features) for PCOS were included in
95
+ the study. The following were the definitions of the three
96
+ features.
97
+ Oligo/amenorrhea: Absence of menstruation for 45 days or
98
+ more and/or less than eight menses per year.[17]
99
+ Clinical hyperandrogenism: Modified Ferriman and
100
+ Gallway (mFG) score of 6 or higher.[1] Biochemical
101
+ hyperandrogenism: Serum testosterone level of >82 ng/dl
102
+ in the absence of other causes of hyperandrogenism.
103
+ Poly cystic ovaries: Presence of >10 cysts, 2‑8 mm in
104
+ diameter, usually combined with increased ovarian
105
+ volume of >10 cm3, and an echo‑dense stroma in pelvic
106
+ ultrasound scan.[18]
107
+ Exclusion criteria were use of oral contraceptives/hormone
108
+ treatment/insulin‑sensitizing agents within previous
109
+ six weeks, smoking, hyperprolactinemia, thyroid
110
+ abnormalities, non‑classic adrenal hyperplasia, prior
111
+ experience of yoga and those who did not consent for the
112
+ study.
113
+ The study was approved by the Institutional Ethical
114
+ Committee of Swami Vivekananda Yoga Anusandhana
115
+ Samsthana (SVYASA) University. Signed informed consent
116
+ was obtained from the college authorities, the students and
117
+ one of the parents.
118
+ Power calculation
119
+ Effect size of 0.61 was obtained by using the post
120
+ intervention mean difference between the two groups
121
+ from the study by Tang et  al. on obese PCOS women
122
+ that compared six months of metformin and lifestyle
123
+ modification with a placebo, as there were studies on yoga
124
+ for PCOS.[19] A sample size of 86 with 43 subjects in each
125
+ arm was calculated keeping this effect size of 0.61, with
126
+ Type 1 error at 0.05 powered at 0.8.
127
+ Design
128
+ This was a prospective, randomized, active interventional
129
+ controlled trial in which 90 participants were randomly
130
+ divided into two study arms: One arm practiced yoga and
131
+ the other arm practiced conventional physical exercises
132
+ for the same duration.
133
+ Methods
134
+ All women students of standard 11 and 12 attended an
135
+ interactive introductory lecture where the purpose and
136
+ design of the study were elucidated. They were asked to
137
+ report one week later after obtaining the signed consent
138
+ from their parents. After obtaining the written consent,
139
+ a clinical examination was performed. All girls with
140
+ oligomenorrhea and/or hirsutism (as per the above said
141
+ definitions) were asked to come for the ultrasound scan
142
+ and blood tests. Those who satisfied the Rotterdam’s
143
+ criteria for PCOS were then randomly assigned to two
144
+ groups using a computer‑generated random number table
145
+ by the pre labeled sealed envelope method. Based on
146
+ random number table, participants were assigned to two
147
+ interventions. Anthropometric measurements (BMI, waist
148
+ and hip circumference), details of menstrual frequency
149
+ and anxiety levels were documented.
150
+ Two different halls in the college premises were allotted
151
+ for yoga and control group practices. Both groups practiced
152
+ their respective set of practices, 1 h daily, 7 days a week
153
+ for 12 weeks (total 90 sessions), under the supervision of
154
+ trained instructors. The daily routine in the class consisted
155
+ of lecture (5 min) followed by physical practices (40 min),
156
+ pranayama (5 min) and relaxation (10 min). The instructors
157
+ maintained the register of daily attendance and the reason
158
+ for absence if any.
159
+ International Journal of Yoga  Vol. 5  Jul-Dec-2012
160
+ 114
161
+ Nidhi, et al.: Effect of yoga on anxiety in adolescents with PCOS: RCT
162
+ Blinding and masking
163
+ Double blinding was not possible as this was an
164
+ interventional study. The medical officer, ultrasonologist
165
+ and the laboratory staff were blind to the groups. Also
166
+ the statistician who did the randomization and the final
167
+ analysis was blind to the source of the data.
168
+ Assessments
169
+ Abdominal ultrasound scanning of the pelvis with
170
+ special attention on ovaries was carried out by a certified
171
+ postgraduate medical ultrasonologist using Philips HD
172
+ 11XE ultrasound system. Vaginal ultrasound scanning was
173
+ not acceptable to the girls or the parents.
174
+ Fasting sample of venous blood (10 ml) was analyzed at
175
+ certified laboratories.
176
+ Hormone estimates including total testosterone (TT)
177
+ and prolactin (PRL) were done by fully automated
178
+ bidirectionally interfaced chemiluminescent immunoassay.
179
+ Thyroid stimulating hormone (TSH) was measured by ultra
180
+ sensitive sandwich chemiluminescent immunoassay. The
181
+ intra‑ and inter‑assay coefficients of variation were 4.0 and
182
+ 5.6% for testosterone.
183
+ The state‑trait anxiety inventory (STAI) is the most widely
184
+ used, cross‑cultural anxiety measure. It was originally
185
+ developed as a research instrument to investigate anxiety
186
+ in normal adults and has also been successfully used to
187
+ measure anxiety in junior and senior high school students.
188
+ The STAI is comprised of separate self‑report scales for
189
+ measuring two distinct anxiety concepts: It consists
190
+ of 2  forms (Y1 and Y2) each comprising of 20  items
191
+ rated on a 4 point scale.[20]
192
+ Form Y1 assesses state anxiety, defined as ‘a transitory
193
+ emotional state that varies in intensity, fluctuates over
194
+ time and is characterized by feelings of tension and
195
+ apprehension and by heightened activity of the autonomic
196
+ nervous system’. It evaluates how the respondents
197
+ feel right now at this moment. Form Y2 evaluates
198
+ trait anxiety, which is ‘a relatively stable individual
199
+ predisposition  to  respond to situations perceived as
200
+ threatening’.
201
+ The overall median alpha co‑efficient is 0.92 and the
202
+ tool has adequate concurrent, convergent, divergent and
203
+ construct validity.[20]
204
+ Intervention
205
+ The specific modules of intervention were developed by a
206
+ team of experts that included a physiatrist, a gynecologist
207
+ and yoga therapy physician. Care was taken to match
208
+ the lectures, practical classes and the type of relaxation
209
+ technique used in the two modules.
210
+ Yoga intervention
211
+ The concepts for the intervention were taken from
212
+ traditional yoga scriptures (Patanjali yoga sutras,
213
+ Upanishads and Yoga Vasishtha) that highlight a holistic
214
+ approach to health management.[21] The practices
215
+ consisted of asanas (yoga postures), pranayama, relaxation
216
+ techniques, meditation, and lectures on yogic lifestyle
217
+ and stress management through yogic counseling. All
218
+ girls received at least one session (about 1 h each) of
219
+ individualized counseling that was aimed at cognitive
220
+ restructuring based on yoga philosophy.
221
+ Control intervention
222
+ Table  1 shows the hour‑long module of practices for
223
+ the control group that consisted of a set of physical
224
+ movements, non‑yogic safe breathing exercises followed
225
+ by supine rest (without instructions) that were matched
226
+ with the yoga module. One session of counseling was
227
+ ensured for the students in the control group also. Care
228
+ was taken by the counselors not to introduce any of the
229
+ yogic concepts during these sessions [Table 1].
230
+ Data analysis
231
+ All statistical analyses were performed using SPSS
232
+ version 17.0. Kolmogorov–Smirnov test was used to check
233
+ for normal distribution. As our objective was to compare
234
+ the changes after yoga with that of exercise and the data
235
+ was not normally distributed, non‑parametric analysis was
236
+ done by using Mann‑Whitney U test to compare difference
237
+ scores (delta change) between the two groups wherein
238
+ difference score was calculated by subtracting pre from
239
+ post values for each variable.
240
+ RESULTS
241
+ Figure 1 describes the trial profile. The recruitment was
242
+ carried out between December 2009 and January 2011. Of
243
+ 986 girls who agreed for clinical examination, 154 girls
244
+ with oligomenorrhea and/or hirsutism (as per the above
245
+ said definitions) were asked to come for ultrasound and
246
+ hormonal investigations. After the laboratory evaluations,
247
+ 90 girls who satisfied Rotterdam criteria of PCOS were
248
+ randomized into two groups. Of these, there were total
249
+ 18 dropouts, 8 in the yoga group and 10 in the control
250
+ group because of less than 75% attendance. The reasons
251
+ (not confirmed) given for withdrawal were (a) sick leave
252
+ and (b) unexpected events in the family. The final analysis
253
+ was done on 72 participants, 37 in the yoga group and 35
254
+ in the control group.
255
+ 115
256
+ International Journal of Yoga  Vol. 5  Jul-Dec-2012
257
+ Nidhi, et al.: Effect of yoga on anxiety in adolescents with PCOS: RCT
258
+ Table  2 shows the demographic data. Of the 90  girls
259
+ recruited, 82.2% (74/90) were of normal weight (BMI=18.5
260
+ to 23) and only 17.78% (16/90) were overweight (BMI>
261
+ 23) and 31.11% (28/90) had mFG score ≥6. Maximum
262
+ 66.67% (60/90) numbers of the girls had their menstrual
263
+ cycle length between 60 and 90 days.
264
+ Mann‑Whitney U test on difference score showed that
265
+ the changes in state anxiety after the intervention were
266
+ non‑significantly different between the two groups
267
+ (P=0.243), although yoga group (‑12.27) observed a greater
268
+ reduction than the exercise group (‑8.55) [Table 3, Figure 2].
269
+ 
270
+ 
271
+ 
272
+ 
273
+ 
274
+ 
275
+ 
276
+ 
277
+ 
278
+ ([HUFLVH
279
+ <RJD
280
+ 3UH
281
+ 3RVW
282
+ Figure 2: State anxiety
283
+ Table  1: Matched practices between yoga and control
284
+ groups
285
+ Yoga group
286
+ Time
287
+ Control group
288
+ Time
289
+ Group lecture
290
+ Lectures, in the form of
291
+ cognitive restructuring
292
+ based on the spiritual
293
+ philosophy underlying
294
+ yogic concepts
295
+ 8 min
296
+ Group lecture
297
+ Lectures on
298
+ conventional modern
299
+ medical concepts
300
+ about a healthy
301
+ lifestyle including
302
+ diet, exercise
303
+ 15 min
304
+ Surya namaskara (sun
305
+ salutation)
306
+ 10 min Brisk walk
307
+ 15 min
308
+ Prone asanas
309
+ Prone exercises
310
+ Cobra pose
311
+ (bhujangasana)
312
+ 1 min
313
+ Prone head lift
314
+ 1 min
315
+ Locust pose (salabhasana)
316
+ 1 min
317
+ Prone leg rising
318
+ 1 min
319
+ Bow pose (dhanurasana)
320
+ 1 min
321
+ Tiger leg stretch
322
+ 1 min
323
+ Standing asanas
324
+ Standing exercises
325
+ Triangle pose
326
+ (trikonasana)
327
+ 1 min
328
+ Spread leg side
329
+ bending
330
+ 1 min
331
+ Twisted angle pose
332
+ (parsva ‑konasana)
333
+ 1 min
334
+ Spread leg twisted
335
+ bending
336
+ 1 min
337
+ Spread leg intense stretch
338
+ (prasarita padottanasana)
339
+ 1 min
340
+ Spread leg forward
341
+ bend
342
+ 1 min
343
+ Supine asanas
344
+ Supine exercises
345
+ Inverted pose (viparita
346
+ karni)
347
+ 1 min
348
+ Straight leg raising
349
+ 1 min
350
+ Shoulder stand
351
+ (sarvangasana)
352
+ 1 min
353
+ Straight leg supine
354
+ twist
355
+ 1 min
356
+ Plough pose (halasana)
357
+ 1 min
358
+ Cycling ‑ bended
359
+ knee crunches
360
+ 1 min
361
+ Sitting asanas
362
+ Sitting exercises
363
+ Sitting forward stretch
364
+ (paschimottanasana)
365
+ 1 min
366
+ Spread leg forward
367
+ bend
368
+ 1 min
369
+ Fixed angle pose
370
+ (baddha‑ konasana)
371
+ 1 min
372
+ Spread leg alternate
373
+ toe touching
374
+ 1 min
375
+ Garland pose (malasana)
376
+ 1 min
377
+ Squat pose
378
+ 1 min
379
+ Guided relaxation
380
+ (savasana)
381
+ 10 min Supine rest
382
+ 10 min
383
+ Breathing techniques
384
+ (pranayama)
385
+ Normal breathing
386
+ 8 min
387
+ Sectional breathing
388
+ (vibhagiya‑ pranayama)
389
+ 4 min
390
+ Forceful exhalation
391
+ (kapala bhati)
392
+ 2 min
393
+ Right nostril breathing
394
+ (suryanuloma viloma)
395
+ 2 min
396
+ Alternate nostril breathing
397
+ (nadi suddhi)
398
+ 2 min
399
+ OM meditation (OM
400
+ dhyana)
401
+ 10 min
402
+ Figure 1: Trial profile
403
+ 6FUHHQHG Q 
404
+ 
405
+ 8QVXLWDEOH Q 
406
+ 
407
+ 5DQGRPL]HG Q 
408
+ &RQWURO Q 
409
+ 
410
+ <RJD Q 
411
+ FRPSOHWHG Q 
412
+ FRPSOHWHG Q 
413
+ 'URS2XW
414
+  Q 
415
+ 
416
+ 'URS2XW Q 
417
+ 
418
+ 
419
+ ([FOXGHG Q 
420
+ 
421
+ 3UHVHQFHRI&OLQLFDO6\PSWRPV Q 
422
+ 
423
+ 
424
+ 
425
+ &OLQLFDO([DPLQDWLRQ
426
+ 
427
+ /DERUDWRU\(YDOXDWLRQ
428
+ 
429
+ Table  2: Demography
430
+ Variables
431
+ Yoga (n=42)
432
+ Control (n=43)
433
+ Age, years (mean±S.D.)
434
+ 16.22 ± 1.13
435
+ 16.22 ± 0.93
436
+ Height, m (mean±S.D.)
437
+ 1.54 ± 0.06
438
+ 1.56 ± 0.05
439
+ Weight, kg (mean±S.D.)
440
+ 47.92 ± 6.20
441
+ 51.14 ± 7.39
442
+ BMI, kg/m² (mean±S.D.)
443
+ 20.30 ± 1.92
444
+ 21.22 ± 2.99
445
+ No. of girls with BMI≤23
446
+ No. of girls with BMI>23
447
+ 37
448
+ 5
449
+ 34
450
+ 9
451
+ mFG score
452
+ No. of girls with mFG score <6
453
+ No. of girls with mFG score ≥6
454
+ 4.60 ± 2.02
455
+ 30
456
+ 15
457
+ 4.20 ± 2.13
458
+ 32
459
+ 13
460
+ Menstrual frequency in months
461
+ (mean±S.D)
462
+ 1.41 ± 0.8
463
+ 1.47 ± 0.87
464
+ No. of girls with cycle length of
465
+ 45 to <60 days
466
+ No. of girls with cycle length of
467
+ 60 to <90 days
468
+ No. of girls with cycle length of
469
+ ≥90 days
470
+ 9
471
+ 14
472
+ 19
473
+ 9
474
+ 16
475
+ 18
476
+ Mann‑Whitney U test on difference scores of trait
477
+ anxiety showed that changes after the intervention were
478
+ significantly different between the two groups (P=0.002;
479
+ Figure 3) with yoga group (‑14.97) observing a higher
480
+ reduction than the exercise group (‑7.42).
481
+ DISCUSSION
482
+ This is the first randomized controlled trial comparing
483
+ the effect of a holistic yoga program with physical
484
+ exercise on state and trait anxiety in adolescents with
485
+ PCOS.
486
+ International Journal of Yoga  Vol. 5  Jul-Dec-2012
487
+ 116
488
+ Nidhi, et al.: Effect of yoga on anxiety in adolescents with PCOS: RCT
489
+ Present study observed higher values for state and trait
490
+ anxiety as compared to Spielberger‘s[20] normative data on
491
+ 377 high school juniors (190 males, 187 females) at Long
492
+ Beach, New York, Senior High School. These normal female
493
+ students had a mean±SD of 37.57±11.76 with an α of
494
+ 0.92 for A‑state while in the present study mean±SD was
495
+ 55.67±10.85. The mean±SD for A‑trait was 41.61±11.29
496
+ with an α 0.92 while in the present study mean±SD was
497
+ 58.00±8.09.
498
+ The baseline scores in our study were higher than healthy
499
+ Indian girls who had A‑trait score of 22.5±5.6 (our PCOS
500
+ girls=41.61±11.29) as reported by Deb et al.,[22] in their
501
+ study on 240 healthy adolescent girls from Kolkata city,
502
+ West Bengal, India.
503
+ The values reported by Spielberg et al. and Deb et al. are
504
+ from normal high school girls, whereas the data presented
505
+ by this study are girls from the same age group with PCOS
506
+ and hence have higher anxiety levels.
507
+ The changes in trait anxiety were significantly different
508
+ between the two groups after 12 weeks of intervention and
509
+ 5 days of detraining, wherein yoga group (−14.97) observed
510
+ a higher reduction than the exercise group (−7.42).
511
+ The results observed in this study may have occurred
512
+ because of the calmness of mind achieved after the yoga
513
+ practice. There are evidences proving efficacy of yoga
514
+ in reducing stress arousal by modulating sympathetic
515
+ nerve activity[23] and reducing anxiety levels.[24] Also, the
516
+ mental silence facilitates greater awareness by altering
517
+ the individual’s cognitive appraisal and perceived
518
+ self‑efficacy with regard to stressors and thus reduces
519
+ anxiety symptoms.[25] The cognitive‑behavioral effects are
520
+ thought to result from the yogic practitioner’s increased
521
+ awareness of how thoughts and emotions arise in response
522
+ to various environmental events, thereby allowing them to
523
+ achieve more clear perception, reduced negative emotions,
524
+ and improved vitality and coping.[26]
525
+ Yoga not only reduces trait anxiety in adolescents with
526
+ PCOS but also may prevent the long‑term sequelae such as
527
+ CVD, diabetes etc. Further, yoga as a self corrective therapy
528
+ is potentially more cost‑effective and enduring. Hence we
529
+ recommend yoga as both a primary intervention and/or as
530
+ adjunct to standard medical care.
531
+ This study was performed on a captive adolescent
532
+ population with a highly selective age group, which raises
533
+ the question of generalizability of the conclusions of this
534
+ study. However, the fact that this was a randomized control
535
+ trial with a large sample participating in each arm provides
536
+ evidence for this intervention being effective.
537
+ CONCLUSION
538
+ Twelve weeks of a holistic yoga program in adolescents
539
+ with PCOS is significantly better than physical exercise
540
+ program in reducing anxiety symptoms. Thus, we
541
+ recommend yoga to be incorporated as complimentary in
542
+ management of adolescents with PCOS as this may help
543
+ in reducing the progression of the disease.
544
+ ACKNOWLEDGMENTS
545
+ We are thankful to the Central Council for Research in Yoga and
546
+ Naturopathy (C.C.R.Y.N.), Ministry of Health, Government of
547
+ India, New Delhi for funding this project.
548
+ We would like to place on record our gratitude for the support
549
+ provided by the Vice Chancellor, SVYASA University. We gratefully
550
+ acknowledge the co‑operation of the staff and administration of Sri
551
+ Sai College in recruiting the students and carrying out the study.
552
+ Ethical approval
553
+ The study was approved by the Institutional Ethical Committee
554
+ of Swami Vivekananda Yoga Anusandhana Samsthana (SVYASA)
555
+ University (vide project # SVYASA0012/08).
556
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557
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558
+ Chen X, Yang D, Mo Y, Li L, Chen Y, Huang Y. Prevalence of polycystic
559
+ ovary syndrome in unselected women from southern China. Eur J Obstet
560
+ Table 3: Changes in state and trait anxiety post intervention
561
+ Variable
562
+ Yoga (n=37)
563
+ Exercise (n=35)
564
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565
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566
+ (sig.)
567
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568
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569
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570
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571
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572
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576
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577
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578
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579
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581
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585
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586
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587
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588
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589
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590
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591
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592
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593
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594
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595
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596
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+ International Journal of Yoga  Vol. 5  Jul-Dec-2012
598
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+ Sri Lanka. Am J Epidemiol 2008;168:321‑8.
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+ et  al. The genetic basis of polycystic ovary syndrome. Human
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+ Reproduction. 1997;12:2641‑8.
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+ syndrome. A randomized, placebo‑controlled, double‑blind multicentre study.
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+ 20. Spielberger CD, Gorsuch RL, Lushene RD. STAI: Manual for the State‑Trait
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+ Anxiety Inventory. Palo Alto, CA: Consulting Psychologists Press; 1970.
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+ 21. Nagendra HR, Nagarathna R. Breath‑the bridge‑Breathing Practices. In: R N,
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+ editor. Bangalore, India: Swami Vivekananda Yoga Prakashan; 2004.
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+ 22. Deb S, Chatterjee P, Walsh K. Anxiety among high school students in India:
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+ quality time with parents. Aust J Educ Dev Psychol 2010;10:18-31.
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+ 23. Vempati RP, Telles S. Yoga‑based guided relaxation reduces sympathetic
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+ activity judged from baseline levels. Psychol Rep 2002;90:487‑94.
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+ 24. Telles S, Gaur V, Balkrishna A. Effect of a yoga practice session and a yoga
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+ theory session on state anxiety.Percept Mot Skill. 2009;109:924-30.
672
+ 25. Smith JC. Meditation, biofeedback, and the relaxation controversy.
673
+ A cognitive‑behavioral perspective. Am Psychol 1986;41:1007‑9.
674
+ 26. Grossman P, Niemann L, Schmidt S, Walach H. Mindfulness‑based
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+ stress reduction and health benefits: A meta‑analysis. J Psychosom Res
676
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677
+ How to cite this article: Ram N, Padmalatha V, Nagarathna R,
678
+ Amritanshu R. Effect of holistic yoga program on anxiety symptoms
679
+ in adolescent girls with polycystic ovarian syndrome: A randomized
680
+ control trial. Int J Yoga 2012;5:112-7.
681
+ Source of Support: Central Council for Research in Yoga and
682
+ Naturopathy (C.C.R.Y.N.), Ministry of health, Government of India, New
683
+ Delhi for funding this project, Conflict of Interest: It is declared that none
684
+ of the authors involved in this study have any conflict of interest and that
685
+ all authors of this article have contributed to their fullest capacities
686
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+ www.ijoy.org.in/rssfeed.asp as one of the feeds.
subfolder_0/Efficacy of a validated yoga protocol on dyslipidemia in diabetes patients NMB-2017 India trial.txt ADDED
@@ -0,0 +1,756 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ medicines
2
+ Article
3
+ Efficacy of a Validated Yoga Protocol on Dyslipidemia
4
+ in Diabetes Patients: NMB-2017 India Trial
5
+ Raghuram Nagarathna 1,*,†, Rahul Tyagi 2,†, Gurkeerat Kaur 2, Vetri Vendan 1,
6
+ Ishwara N. Acharya 3, Akshay Anand 2,*, Amit Singh 1 and Hongasandra R. Nagendra 1
7
+ 1
8
+ Swami Vivekananda Yoga Research Foundation, Bengaluru 560105, India; [email protected] (V.V.);
9
10
+ 2
11
+ Neuroscience Research Lab, Department of Neurology, Postgraduate Institute of Medical Education and
12
+ Research, Chandigarh 160012, India; [email protected] (R.T.); [email protected] (G.K.)
13
+ 3
14
+ Central Council for Research in Yoga & Naturopathy (CCRYN), Delhi 110058, India;
15
16
+ *
17
+ Correspondence: [email protected] (R.N.); akshay1anand@rediffmail.com (A.A.)
18
+
19
+ These authors contribute equally to the article.
20
+ Received: 15 August 2019; Accepted: 8 October 2019; Published: 11 October 2019
21
+ 
22
+ 
23
+ Abstract: Background: Dyslipidemia is considered a risk factor in Type 2 diabetes mellitus (T2DM)
24
+ resulting in cardio-vascular complications. Yoga practices have shown promising results in alleviating
25
+ Type 2 Diabetes pathology. Method: In this stratified trial on a Yoga based lifestyle program in
26
+ cases with Type 2 diabetes, in the rural and urban population from all zones of India, a total of
27
+ 17,012 adults (>20 years) of both genders were screened for lipid profile and sugar levels. Those who
28
+ satisfied the selection criteria were taught the Diabetes Yoga Protocol (DYP) for three months and
29
+ the data were analyzed. Results: Among those with Diabetes, 29.1% had elevated total cholesterol
30
+ (TC > 200 mg/dL) levels that were higher in urban (69%) than rural (31%) Diabetes patients. There was
31
+ a positive correlation (p = 0.048) between HbA1c and total cholesterol levels. DYP intervention
32
+ helped in reducing TC from 232.34 ± 31.48 mg/dL to 189.38 ± 40.23 mg/dL with significant pre post
33
+ difference (p < 0.001). Conversion rate from high TC (>200 mg/dL) to normal TC (<200 mg/dL) was
34
+ observed in 60.3% of cases with Type 2 Diabetes Mellitus (T2DM); from high LDL (>130 mg/dL) to
35
+ normal LDL (<130 mg/dL) in 73.7%; from high triglyceride (>200 mg/dL) to normal triglyceride level
36
+ (<200 mg/dL) in 63%; from low HDL (<45 mg/dL) to normal HDL (>45 mg/dL) in 43.7% of T2DM
37
+ patients after three months of DYP. Conclusions: A Yoga lifestyle program designed specifically to
38
+ manage Diabetes helps in reducing the co-morbidity of dyslipidemia in cases of patients with T2DM.
39
+ Keywords: diabetic yoga protocol; DYP; dyslipidemia; T2DM; diabetes mellitus
40
+ 1. Introduction
41
+ 1.1. Prevalence, Burden of Type 2 Diabetes Mellitus and Dyslipidemia
42
+ Type 2 diabetes mellitus (T2DM) is a chronic hyperglycemic metabolic disorder that occurs due
43
+ to a complex interaction of several prevailing lifestyle factors including diet, obesity, and physical
44
+ inactivity against a background of genetic and epigenetic factors [1]. These contribute to insulin
45
+ resistance and relative insulin deficiency over time [2], resulting in complications such as cataracts,
46
+ retinopathy, neuropathy, and nephropathy [3].
47
+ Recent worldwide findings show that the prevalence of Diabetes in adults in developing countries
48
+ when compared to developed countries has increased from 4.3% to 9.0% in men and 5.0% to 7.9% in
49
+ women in the last 35 years [4]. In India, it has been estimated that around 66.8 million people have
50
+ diabetes [5]. As expected, not until very recently was the prevalence in the rural population known.
51
+ Medicines 2019, 6, 100; doi:10.3390/medicines6040100
52
+ www.mdpi.com/journal/medicines
53
+ Medicines 2019, 6, 100
54
+ 2 of 11
55
+ A recent study of rural dwelling reported that 8.03% of the recruited population from western Uttar
56
+ Pradesh was suffering from Diabetes and amongst them 9.91% were females and 6.79% were males [6].
57
+ Interestingly, a study assessed the mean expenditure in the management of T2DM and revealed the
58
+ Indian rupee 853.47 to be the estimated average monthly expenses per individual. This expenditure
59
+ increases with the duration of the disease and is concomitant with an increase in the complications
60
+ associated with it [7]. In light of the increased expenditure on screening, diagnosis, monitoring,
61
+ and management of T2DM, the combined health budget of developing countries is affected [5].
62
+ Diabetes and pre-diabetes together affects almost one fourth of the Indian population, which is clearly
63
+ traceable to the rapidly changing lifestyle [8,9].
64
+ Hypertension and hyperlipidemia are the most common co-morbidities associated with T2DM.
65
+ Both these co-morbidities hasten the occurrence of renal and cardiovascular complications at an alarming
66
+ rate [10]. Myocardial infarction remains the most common cause of death in T2DM patients [11,12] as
67
+ well as the prime cause of deaths worldwide [10,13]. Briefly, the factors responsible for an increase
68
+ in cardio-vascular diseases (CVD) are diabetes, hypertension, abnormal cholesterol and triglyceride
69
+ levels, high levels of low density lipoprotein (LDL), low levels of high density lipoprotein (HDL),
70
+ and obesity [14]. Murray and Lopez predicted that between 1990–2020, CVD will cause devastating
71
+ effects on human health and as expected, the diabetes population with dyslipidemia will be severely
72
+ affected [15]. A cross sectional study conducted on 297 Indian subjects reported a direct correlation
73
+ between the blood levels of glycated hemoglobin (HbA1c) and total cholesterol, LDL, and triglycerides
74
+ besides an inverse relation with HDL levels [16,17]. Furthermore, it was shown that T2DM associated
75
+ with decreased HDL and increased production of triglycerides, LDL, and very low lipoproteins (VLDL)
76
+ levels is presumably due to impaired catabolism [18].
77
+ 1.2. Lifestyle Interventions
78
+ Studies continue to reveal that even though T2DM is widely prevalent in India, there is a lack
79
+ of access to healthcare, awareness, counseling, and treatments.
80
+ Studies have recommended an
81
+ improvement in lifestyle for managing all modifiable risk factors for the secondary prevention of
82
+ complications in patients with T2DM [19].
83
+ 1.3. Why This Yoga Study
84
+ In pursuit of better and cost-effective intervention of T2DM, Yoga has emerged as a natural and
85
+ widely therapeutic option. Supporting evidence has shown that Yoga can positively impact T2DM
86
+ patients by reducing fasting blood glucose (FBG) and HbA1c levels, and helps in improving the
87
+ lipid profile and hypertension of T2DM patients [20]. It has been shown that Yoga has re-emerged
88
+ as an integrated approach and found to be effective in the prevention and treatment of T2DM and
89
+ dyslipidemia to the extent that it reduces overall healthcare costs by reducing future medications
90
+ and hospitalizations [21,22]. However, a standardized protocol based on a Yoga lifestyle research is
91
+ needed for effective community health translation [23,24]. Therefore, we examined the effect of the
92
+ Diabetes Yoga lifestyle protocol on the lipid profile of a large sample population of patients with T2DM
93
+ across India.
94
+ 2. Materials and Methods
95
+ 2.1. Study Design
96
+ This was a stratified translational research study in randomly selected cluster populations from
97
+ all zones of rural and urban India. Study was approved by the Institutional Ethics Committee of the
98
+ Indian Yoga Association (IYA) vide Res/IEC-IYA/001 dated 16 December 2016. The current study was
99
+ registered in the Clinical Trial Registry of India (CTRI) vide CTRI/2018/03/012804.
100
+ Medicines 2019, 6, 100
101
+ 3 of 11
102
+ 2.2. Screening and Recruitment of Participants
103
+ The study participants were recruited after obtaining signed informed consent as per the guidelines
104
+ outlined by the Institutional Ethical Committee of Indian IYA. Detailed methodology adopted has been
105
+ previously reported [25,26]. In brief, baseline assessment was carried out by a nationwide door to door
106
+ screening in urban and rural districts under the flagship of the Niyantrita Madhumeha Bh¯
107
+ arat (NMB)
108
+ Abhiy¯
109
+ an (Diabetes Control Program), funded by the Ministry of Health and Family Welfare, the ministry
110
+ of AYUSH, Government of India, New Delhi, and conducted by IYA. The Diabetes Yoga Protocol (DYP)
111
+ was validated by the Quality Council of India. Subjects were recruited based on the Indian Diabetic
112
+ Risk Score (IDRS). T2DM individuals and those with a high risk on the Indian diabetes risk score,
113
+ detected during screening at the randomly selected clusters of villages (rural) and census enumeration
114
+ blocks (urban), were recruited and enrolled. They adopted a three months Yoga lifestyle protocol under
115
+ the supervision of a trained Yoga teacher. Subjects adhered to five days a month for three months and
116
+ attendance was recorded. Compliance was also ensured by WhatsApp reminders for the Yoga sessions.
117
+ 2.3. Selection Criteria
118
+ All subjects who satisfied the selection criteria and signed the informed consent were included
119
+ in the study. Medication to T2DM was not considered to be exclusion criteria. However, detailed
120
+ medication records were not available. Known/self-reported/newly detected Diabetics or high risk
121
+ subjects of all genders between age ranges of 20–70 were selected for analysis. For newly detected
122
+ T2DM, the HbA1c level (6.5%) in high risk (>60 on IDRS) population was considered. Subjects with
123
+ other co-morbidities including cancer, serious cardiac illness, chronic liver, pulmonary, neurological,
124
+ renal diseases, lower back pain, and surgical interventions were excluded. Willingness to register in
125
+ the trial was mandatory for inclusion.
126
+ 2.4. Assessments
127
+ All assessments were carried out at the baseline and after three months of DYP intervention.
128
+ 2.5. Anthropometric Assessments
129
+ Anthropometric assessments included height, weight, waist circumference, and hip circumference
130
+ carried out at the time of screening of the subjects and at follow up.
131
+ 2.6. Biochemical Assessments
132
+ Biochemical assessments included fasting blood glucose, glycated hemoglobin (HbA1c),
133
+ total cholesterol, triglycerides, LDL, VLDL, and HDL. Assessments were carried out by accredidated
134
+ diagnostics lab using standard diagnostic tools and procedures acceptable for public utility.
135
+ 2.7. Intervention
136
+ DYP was designed by the Delphi method and focused group discussion by experts from Yoga
137
+ traditions of the Indian Yoga Association and researchers on Diabetes [26]. The practices were taught
138
+ by a certified Yoga instructor volunteers in nine day camps (2 h daily) in their respective villages or
139
+ wards. Subsequently, they were asked to continue the practices daily (one hour) at home, through
140
+ the use of DVDs. Weekly follow up classes were conducted at the same venues for three months.
141
+ The detailed methodology is provided in Supplementary Table S1.
142
+ 2.8. Statistical Analysis
143
+ The statistical analysis was carried out using SPSS 21.0 software (IBM Corp., Armonk, NY, USA).
144
+ The normality was tested by using the Kolmogorov–Smirnov test. The comparisons were made by
145
+ using paired samples t-test for normally distributed data. Significance level of various proportions
146
+ Medicines 2019, 6, 100
147
+ 4 of 11
148
+ were analyzed by the Chi square test. McNemar’s test was performed to assess the conversion. p value
149
+ < 0.05 was considered to test the level of significance.
150
+ 3. Results
151
+ In this nationwide study, a total of 17,012 participants with high risk on the IDRS (>60) and
152
+ known Diabetes were recruited. Out of the total, 5150 had HbA1c > 6.5%. Data was collected at
153
+ two time points (i.e., before and after the Yoga intervention). Out of the 5150 T2DM patients with
154
+ HbA1c >6.5%, 1745 individuals were found to have serum total cholesterol (TC) level > 200 mg/dL
155
+ (borderline and hypercholesterolemia range). Post data on cholesterol values were available for
156
+ analysis in 694 individuals after three months of a Yoga lifestyle regime. In the absence of medication
157
+ details, the comparisons were carried between ≥200 and <200 cases with T2DM. Detailed study profile
158
+ has been provided in Figure 1.
159
+ Medicines 2019, 6, x FOR PEER REVIEW
160
+ 4 of 11
161
+
162
+ 3. Results
163
+ In this nationwide study, a total of 17,012 participants with high risk on the IDRS (>60) and
164
+ known Diabetes were recruited. Out of the total, 5150 had HbA1c > 6.5%. Data was collected at two
165
+ time points (i.e., before and after the Yoga intervention). Out of the 5150 T2DM patients with HbA1c
166
+ >6.5%, 1745 individuals were found to have serum total cholesterol (TC) level > 200 mg/dL (borderline
167
+ and hypercholesterolemia range). Post data on cholesterol values were available for analysis in 694
168
+ individuals after three months of a Yoga lifestyle regime. In the absence of medication details, the
169
+ comparisons were carried between ≥200 and <200 cases with T2DM. Detailed study profile has been
170
+ provided in Figure 1.
171
+
172
+
173
+ Figure 1. Study profile.
174
+ 3.1. Effect of Diabetes Yoga Protocol on Diabetes Population with Dyslipidemia
175
+ The DYP reduced the TC levels in 4% of T2DM patients with TC > 200 mg/dL; TC reduced
176
+ significantly (p ≤ 0.001; t = 22.93) from 232.34 ± 31.48 (pre yoga intervention) to 189.38 ± 40.23 (post
177
+ yoga intervention). Other variables of lipid profile including triglycerides (Tg), LDL, and VLDL were
178
+ also found to be significantly reduced after Yoga intervention. Interestingly, the HDL increased
179
+ significantly in those with low (<45 mg/dL) baseline values and decreased significantly in those with
180
+ high (>45 mg/dL) baseline values (Table 1). Total cholesterol reduced significantly in all age groups.
181
+ Figure 1. Study profile.
182
+ 3.1. Effect of Diabetes Yoga Protocol on Diabetes Population with Dyslipidemia
183
+ The DYP reduced the TC levels in 4% of T2DM patients with TC > 200 mg/dL; TC reduced
184
+ significantly (p ≤0.001; t = 22.93) from 232.34 ± 31.48 (pre yoga intervention) to 189.38 ± 40.23 (post
185
+ yoga intervention). Other variables of lipid profile including triglycerides (Tg), LDL, and VLDL
186
+ were also found to be significantly reduced after Yoga intervention. Interestingly, the HDL increased
187
+ significantly in those with low (<45 mg/dL) baseline values and decreased significantly in those with
188
+ high (>45 mg/dL) baseline values (Table 1). Total cholesterol reduced significantly in all age groups.
189
+ Medicines 2019, 6, 100
190
+ 5 of 11
191
+ Table 1. Pre post changes in lipids in those with high Total Cholesterol in type 2 diabetes patients in different age groups.
192
+ MBG
193
+ TC
194
+ Tg
195
+ LDL
196
+ VLDL
197
+ HDL
198
+ <45 mg/dL
199
+ HDL
200
+ >45 mg/dL
201
+ Cho:HDL
202
+ Ratio
203
+ LDL:HDL
204
+ Ratio
205
+ Mean (SD)
206
+ Mean (SD)
207
+ Mean (SD)
208
+ Mean (SD)
209
+ Mean (SD)
210
+ Mean (SD)
211
+ Mean (SD)
212
+ Mean (SD)
213
+ Mean (SD)
214
+ Overall
215
+ pre
216
+ 152.3 (64.3)
217
+ 239.4 (31.6)
218
+ 201.0 (117.5)
219
+ 142.0 (31.3)
220
+ 35.7 (15.0)
221
+ 34.9 (4.92)
222
+ 55.1 (13.5)
223
+ 4.66 (1.35)
224
+ 2.91 (1.21)
225
+ post
226
+ 142.8 (52.7)
227
+ 189.8 (40.5)
228
+ 173.6 (98.8)
229
+ 108.4 (34.9)
230
+ 30.9 (14.9)
231
+ 44.2 (12.0)
232
+ 49.1 (11.8)
233
+ 4.03 (1.24)
234
+ 2.26 (0.94)
235
+ 20–30 years
236
+ pre
237
+ 143.87
238
+ (51.05)
239
+ 230.35
240
+ (27.04)
241
+ 204.90
242
+ (109.25)
243
+ 140.03
244
+ (28.33)
245
+ 35.95 (15.37)
246
+ 42.7 (10.7)
247
+ 61.0 (17.3)
248
+ 4.55 (1.44)
249
+ 2.80 (1.07)
250
+ post
251
+ 137.02
252
+ (50.06)
253
+ 175.57
254
+ (48.42)
255
+ 161.68
256
+ (74.36)
257
+ 98.44 (40.75)
258
+ 31.65 (15.02)
259
+ 49.1 (15.5)
260
+ 50.3 (10.1)
261
+ 3.73 (1.23)
262
+ 2.03 (0.93)
263
+ 31–40 years
264
+ pre
265
+ 147.41
266
+ (58.54)
267
+ 229.66
268
+ (29.48)
269
+ 189.97
270
+ (98.71)
271
+ 141.61
272
+ (31.29)
273
+ 36.37 (15.56)
274
+ 38.6 (4.48)
275
+ 58.7 (14.1)
276
+ 4.60 (1.31)
277
+ 2.89 (1.01)
278
+ post
279
+ 139.68
280
+ (53.35)
281
+ 189.60
282
+ (40.64)
283
+ 176.40
284
+ (94.97)
285
+ 107.72
286
+ (36.06)
287
+ 33.07 (15.60)
288
+ 46.1 (10.4)
289
+ 47.9 (10.8)
290
+ 4.18 (1.36)
291
+ 2.36 (1.00)
292
+ 41–50 years
293
+ pre
294
+ 150.18
295
+ (62.72)
296
+ 232.28
297
+ (29.28)
298
+ 207.05
299
+ (124.08)
300
+ 139.40
301
+ (29.82)
302
+ 36.54 (16.17)
303
+ 39.9 (4.44)
304
+ 57.4 (11.6)
305
+ 4.67 (1.28)
306
+ 2.87 (1.03)
307
+ post
308
+ 140.64
309
+ (50.94)
310
+ 185.62
311
+ (40.46)
312
+ 163.86
313
+ (89.86)
314
+ 105.81
315
+ (34.39)
316
+ 30.77 (13.70)
317
+ 45.3 (11.1)
318
+ 51.4 (12.5)
319
+ 3.98 (1.24)
320
+ 2.22 (0.90)
321
+ 51–60 years
322
+ pre
323
+ 151.55
324
+ (57.77)
325
+ 231.95
326
+ (28.19)
327
+ 204.57
328
+ (120.29)
329
+ 140.07
330
+ (27.82)
331
+ 36.38 (15.53)
332
+ 38.1 (5.64)
333
+ 61.2 (18.5)
334
+ 4.66 (1.48)
335
+ 2.92 (1.39)
336
+ post
337
+ 139.17
338
+ (52.35)
339
+ 189.24
340
+ (38.78)
341
+ 168.79
342
+ (96.36)
343
+ 106.40
344
+ (32.93)
345
+ 30.59 (13.13)
346
+ 45.9 (11.3)
347
+ 50.7 (12.0)
348
+ 3.99 (1.15)
349
+ 2.24 (0.94)
350
+ >60 years
351
+ pre
352
+ 145.31
353
+ (59.76)
354
+ 230.49
355
+ (26.58)
356
+ 199.30
357
+ (113.65)
358
+ 140.39
359
+ (29.50)
360
+ 35.40 (15.03)
361
+ 37.6 (6.3)
362
+ 59.0 (13.8)
363
+ 4.77 (1.26)
364
+ 3.03 (1.45)
365
+ post
366
+ 138.32
367
+ (46.60)
368
+ 182.81
369
+ (37.36)
370
+ 169.85
371
+ (96.50)
372
+ 103.92
373
+ (33.32)
374
+ 32.01 (15.88)
375
+ 47.5 (14.4)
376
+ 46.9 (11.3)
377
+ 4.11 (1.23)
378
+ 2.33 (0.93)
379
+ Medicines 2019, 6, 100
380
+ 6 of 11
381
+ 3.2. DYP Is Beneficial for TC in Diabetes of All HbA1c Categories in Both Genders of Urban and Rural
382
+ Population
383
+ 3.2.1. Dyslipidemia Higher in Rural Population
384
+ Total cholesterol values were >200 mg dL in 29.1%; of these TC was significantly higher in the rural
385
+ diabetes population (31%) than their urban counterparts (28%) (Supplementary Table S1). However,
386
+ after DYP intervention, the reduction in hyperlipidemia was significantly better (p < 0.001.) in the
387
+ rural diabetes population than in urban areas (5% vs. 3%, respectively).
388
+ 3.2.2. DYP Reduces Dyslipidemia Equally in Both Genders
389
+ The percentage of T2DM subjects with TC level >200 mg/dL was less when compared to those
390
+ with cholesterol levels <200 mg/dL in both genders. Mean TC level was found to be similar in both the
391
+ genders with T2DM (Supplementary Table S1).
392
+ 3.2.3. Hyperlipidemia Increases with Increasing HbA1c
393
+ The data showed that the levels of HbA1c and mean blood glucose levels were found to be
394
+ positively correlated (p = 0.048) with the TC levels. This reveals that, with the increase in HbA1c levels,
395
+ the percentage of T2DM subjects with cholesterol level > 200 mg/dl increased gradually (Figure 2).
396
+ Moreover, after yoga intervention, the cholesterol levels were significantly reduced in all HbA1c
397
+ categories (Supplementary Table S1).
398
+ Medicines 2019, 6, x FOR PEER REVIEW
399
+ 6 of 11
400
+
401
+ 3.2. DYP Is Beneficial for TC in Diabetes of All HbA1c Categories in Both Genders of Urban and Rural
402
+ Population
403
+ 3.2.1. Dyslipidemia Higher in Rural Population
404
+ Total cholesterol values were >200 mg dL in 29.1%; of these TC was significantly higher in the
405
+ rural diabetes population (31%) than their urban counterparts (28%) (Supplementary Table S1).
406
+ However, after DYP intervention, the reduction in hyperlipidemia was significantly better (p < 0.001.)
407
+ in the rural diabetes population than in urban areas (5% vs. 3%, respectively).
408
+ 3.2.2. DYP Reduces Dyslipidemia equally in Both Genders
409
+ The percentage of T2DM subjects with TC level > 200 mg/dL was less when compared to those
410
+ with cholesterol levels < 200 mg/dL in both genders. Mean TC level was found to be similar in both
411
+ the genders with T2DM (Supplementary Table S1).
412
+ 3.2.3. Hyperlipidemia Increases with Increasing HbA1c
413
+ The data showed that the levels of HbA1c and mean blood glucose levels were found to be
414
+ positively correlated (p = 0.048) with the TC levels. This reveals that, with the increase in HbA1c
415
+ levels, the percentage of T2DM subjects with cholesterol level > 200 mg/dl increased gradually (Figure
416
+ 2). Moreover, after yoga intervention, the cholesterol levels were significantly reduced in all HbA1c
417
+ categories (Supplementary Table S1).
418
+
419
+ Figure 2. Relationship of HbA1c and hyperlipidemia.
420
+ 3.2.4. Effect of DYP on the Conversion of Hyperlipidemia in Diabetes Patients (Table 2)
421
+ A highly significant percentage of patients with Diabetes who had abnormal lipid levels were
422
+ converted to normal levels after three months of yoga practice: 60.3% in total cholesterol, 73.7% in
423
+ LDL, 63% in triglycerides, and 43% in those with low HDL (45 mg/dL).
424
+ Figure 2. Relationship of HbA1c and hyperlipidemia.
425
+ 3.2.4. Effect of DYP on the Conversion of Hyperlipidemia in Diabetes Patients
426
+ A highly significant percentage of patients with Diabetes who had abnormal lipid levels were
427
+ converted to normal levels after three months of yoga practice: 60.3% in total cholesterol, 73.7% in
428
+ LDL, 63% in triglycerides, and 43% in those with low HDL (45 mg/dL) (Table 2).
429
+ Medicines 2019, 6, 100
430
+ 7 of 11
431
+ Table 2. Shift in those with high lipid levels after yoga in diabetes patients.
432
+ Pre
433
+ Post
434
+ Sig *
435
+ DM (A1c > 6.5%)
436
+ Above Normal Range
437
+ Below Normal Range
438
+ Variable
439
+ N
440
+ n
441
+ %
442
+ n
443
+ %
444
+ p
445
+ TC > 200 mg/dL
446
+ 642
447
+ 242
448
+ 37.7
449
+ 400
450
+ 60.3
451
+ <0.001
452
+ LDL >130 mg/dL
453
+ 392
454
+ 103
455
+ 26.3
456
+ 289
457
+ 73.7
458
+ <0.001
459
+ Tg > 200 mg/dL
460
+ 433
461
+ 160
462
+ 37.0
463
+ 273
464
+ 63.0
465
+ <0.001
466
+ HDL < 45 mg/dL
467
+ 835
468
+ 470
469
+ 56.3
470
+ 365
471
+ 43.7
472
+ <0.001
473
+ * McNemar’s test: p ≤0.001.
474
+ 4. Discussion
475
+ 4.1. Summary
476
+ We assessed the effect of a validated yoga lifestyle protocol on the lipid profile of 5150 patients with
477
+ T2DM. There was a positive correlation between cholesterol with HbA1c values. A higher proportion
478
+ of rural subjects, diabetic females with high A1c, and urban patients with high A1c were found to have
479
+ higher cholesterol levels at the baseline, indicating vulnerability to serious complications.
480
+ Exposure to DYP resulted in a significant reduction in total cholesterol, LDL, VLDL, and triglyceride
481
+ levels. However, HDL was the least affected in the rural region. DYP reduced the cholesterol levels,
482
+ better in males than females; and DYP was equally beneficial in all age groups in both the urban and
483
+ rural population in different ranges of HbA1c levels.
484
+ 4.2. Comparisons
485
+ Prior to the current study, Shantakumari et al. evaluated the impact of three months Yoga
486
+ intervention on the dyslipidemic profile in 100 T2DM subjects and found similar findings [27].
487
+ However, the sample size (n-100) was smaller and represented only a south Indian population whereas
488
+ the current pan-India study had a large sample size (5150) using a validated common yoga protocol.
489
+ The outcomes of this DYP study showed an improvement in overall lipid profile (i.e., decrease in
490
+ total cholesterol, triglycerides and LDL levels) among the T2DM subjects. Similarly, Mohammed
491
+ et al. reported reduced total cholesterol, triglycerides, and LDL cholesterol in 158 Yoga practicing
492
+ Type 2 Diabetes and dyslipidemia patients in comparison to the sulphonyl urea treatment group;
493
+ the mean TC of 240.36 mg/dL (High) was reduced to 214.11 mg/dL (borderline) after four months
494
+ of yoga intervention with a 10% reduction [28]. However, in our study, DYP intervention helped
495
+ hyperlipidemia subjects to attain normal levels (189.38 mg/dl) of cholesterol from the baseline levels
496
+ of 232.34 mg/dL with an 18% reduction. A recent systemic review of controlled Yoga trials on adult
497
+ Diabetics recommended additional high quality studies due to methodological limitations in previous
498
+ studies [29]. A recent meta-analysis reporting significant improvements in the lipid profile remained
499
+ limited to non DYP protocols [30], highlighting the importance of validated protocols to further our
500
+ deeper mechanistic understanding while retaining the reproducibility. Therefore, a specific Diabetes
501
+ Yoga Protocol was employed in this nationwide study focused on T2DM patients of all age groups
502
+ across India. We found a positive correlation (p < 0.05) between increasing levels of HbA1c and TC
503
+ (Figure 2). Earlier studies have also shown similar results with high HbA1c as an important predictor
504
+ of high serum lipid levels in T2DM subjects [17,31,32], warranting glycemic control as an important
505
+ factor needed to control dyslipidemia and prevent major cardiovascular events [33].
506
+ 4.3. Mechanism of action of Yoga
507
+ Yoga mediated reduction in the dyslipidemia has yet not been explored to the current scale in the
508
+ Diabetic subjects. We describe the underlying mechanism based on existing studies. Mechanistically,
509
+ Medicines 2019, 6, 100
510
+ 8 of 11
511
+ insulin resistant cells inhibit lipase activity, the enzyme that catabolizes the lipids resulting in increased
512
+ triglycerides, LDL, and cholesterol levels in the body [32]. In addition, the accumulation of lipids
513
+ increases the risk of other co-morbidities like atherosclerosis, cardiovascular, and coronary artery
514
+ diseases. Dyslipidemia also causes endothelial damage, which results in the loss of physiological
515
+ vasomotor activity [34]. Furthermore, factors like dyslipidemia also contribute to increased blood
516
+ pressure [35], which leads to the activation of the RAAS pathway where the aldosterone hormone is
517
+ secreted due to over activation of the HPA axis in T2DM subjects [36]. Available evidence shows that
518
+ Diabetes neuropathy affects the longest fiber of the parasympathetic system, leading to sympathetic
519
+ imbalance, thus leading to hypertension [37]. However, the existing evidence also indicates that there
520
+ is a persistent increase in the HPA (hypothalamus pituitary adrenal) axis activity in Diabetic patients
521
+ with Diabetes neuropathy [38]. A number of studies depict that there is mitochondrial dysfunction and
522
+ decreased activity of mitochondrial enzymes in T2DM subjects due to insulin resistance. Measurement
523
+ of oxidative phosphorylation in vivo by P-NMR has also shown impaired ATP synthesis in insulin
524
+ resistant subjects [39]. Furthermore, PPARδ (peroxisome proliferate activator receptor) is a lipid
525
+ activated nuclear factor that has an important role in the regulation of glucose, lipid, and lipoprotein
526
+ metabolism. Pre-clinical evidence has shown that PPAR can reduce or prevent obesity induced insulin
527
+ resistance and T2DM [40]. Moreover, PPAR agonists are believed to be potent activators of lipid
528
+ metabolism, thus explaining its beneficial actions on insulin sensitivity and adiposity [41]. Regardless
529
+ of this pharmacological context, it has also been described that Yoga improves the lipid profile in
530
+ T2DM subjects by increasing hepatic lipase and pancreatic lipase activity [27,42]. It has also been
531
+ described that Yoga helps to maintain a balance between sympathetic and parasympathetic balance [43].
532
+ Specifically, the Pranayama practices (as part of most of Yoga protocols), also included in the DYP,
533
+ are believed to decrease the blood sugar level by increasing the utilization and mechanism of glucose
534
+ in liver adipose tissue and peripheral organs [44]. Blood supply to muscles is also improved with
535
+ Pranayama, which enhances the insulin receptor expression in muscles and increases the glucose uptake
536
+ by cells, thus reducing the blood sugar levels [45]. We argue that asanas included in the DYP may
537
+ improve the accessibility of various enzymes to target and stimulate their substrates. This might
538
+ contribute toward the reduction of LDL and TG.
539
+ 4.4. Limitations
540
+ The study duration was one of the limitations as the analysis could not extend beyond three
541
+ months. Yet, the drop offrate in the study could be ascribed to challenges in adopting a Yoga lifestyle,
542
+ general laziness, inability to perform Yoga due to health limitations, and relative interest in other forms
543
+ of physical exercises. In certain places, climatic and political conditions also led to drop outs.
544
+ 4.5. Strengths
545
+ One of the strengths of this study was the inclusion of a large sample size and the use of a validated
546
+ Diabetes Yoga Protocol. Longitudinal studies may examine the long term effects of DYP.
547
+ 5. Conclusions
548
+ DYP significantly attenuated the hyperlipidemic state of T2DM patients. The potential of DYP
549
+ to halt the conversion of hyperlipidemic into CVD among Diabetics can be probed by a longitudinal
550
+ intervention study. There is not only a need to understand the mechanism governing the effects of DYP,
551
+ but also in scaling it into a public intervention national program. Although the available evidence
552
+ proves the significance of the beneficial impact of Yoga on the cholesterol levels, Tg, LDL, and VLDL,
553
+ a standardized approach may further alleviate the fatal consequences of Diabetes. This may reduce
554
+ vulnerability to heart diseases.
555
+ Supplementary Materials: The following are available online at http://www.mdpi.com/2305-6320/6/4/100/s1,
556
+ Table S1: Effect of Yoga intervention on the lipid profile in different ranges of HbA1c in urban and rural subjects.
557
+ Medicines 2019, 6, 100
558
+ 9 of 11
559
+ Author Contributions: R.N. and H.R.N. Conceptualization, R.N., V.V. and I.N.A. Data Curation and acquisition,
560
+ Funding Acquisition, Supervision R.N. and A.S. Formal Analysis, Investigation, Methodology, Validation and
561
+ Writing—review and editing. R.T. and G.K. Formal Analysis, Writing—Original draft, Writing-review and editing.
562
+ A.A. Writing- concept of manuscript and editing.
563
+ Funding: This research was funded by Central Council for Research in Yoga and Naturopathy (CCRYN) (Ref F.No.
564
+ 16-63/2016-17/CCRYN/RES/Y&D/MCT/ Dated: 15.12.2016).
565
+ Acknowledgments: We acknowledge the support of the Ministry of Health and Family Welfare and Ministry of
566
+ Ayurveda, Yoga & Naturopathy, Unani, Siddha, Sowa Rigpa and Homoeopathy (AYUSH), Government of India,
567
+ New Delhi, and CCRYN for funding this project. We thank the advisory research committee, senior research
568
+ fellows Subzar, Sanjay, Radhika, Sunanda Rathi, Yoga volunteers, and the President of Indian Yoga Association for
569
+ their contribution to this project. We also thank Kanupriya for her contributions in this manuscript.
570
+ Conflicts of Interest: The authors declare no conflict of interest.
571
+ Abbreviations
572
+ CCRYN
573
+ Central Council for Research in Yoga and Naturopathy
574
+ CTRI
575
+ Clinical Trial Registry of India
576
+ CVD
577
+ Cardio-vascular diseases
578
+ DYP
579
+ Diabetes yoga protocol
580
+ FBG
581
+ Fasting blood glucose
582
+ HbA1c
583
+ Glycated hemoglobin
584
+ HDL
585
+ High density lipoprotein
586
+ IDRS
587
+ Indian Diabetic Risk Score
588
+ LDL
589
+ Low density lipoprotein
590
+ NMB
591
+ Niyantrita Madhumeha Bh¯
592
+ arat
593
+ T2DM
594
+ Type 2 diabetes mellitus
595
+ TC
596
+ Total Cholesterol
597
+ Tg
598
+ Triglycerides
599
+ VLDL
600
+ Very Low Lipoproteins
601
+ References
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+ (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
subfolder_0/Examining Mediators and Moderators of Yoga for Women With Breast Cancer Undergoing Radiotherapy.txt ADDED
@@ -0,0 +1,1659 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Integrative Cancer Therapies
2
+ January-March 2016: 1­
3
+ –13
4
+ © The Author(s) 2016
5
+ Reprints and permissions:
6
+ sagepub.com/journalsPermissions.nav
7
+ DOI: 10.1177/1534735415624141
8
+ ict.sagepub.com
9
+ Creative Commons CC-BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial
10
+ 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and
11
+ distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages
12
+ (https://us.sagepub.com/en-us/nam/open-access-at-sage).
13
+ Research Articles
14
+ Introduction
15
+ Moderators of Mind-Body Interventions
16
+ Despite the large number of behavioral intervention studies
17
+ for individuals diagnosed with cancer, the overall efficacy of
18
+ these treatments in addressing patient symptom burden has
19
+ been heavily debated.1-5 Though an estimated 20%-40% of
20
+ cancer patients experience depression, the typical cancer
21
+ patient enrolled in psychosocial trials tends to be not
22
+ depressed.4,6 Thus, the frequently used “all-comers” approach
23
+ to patient recruitment may result in negligible treatment gains
24
+ for quality of life (QOL) indicators such as depression. In fact,
25
+ a recent meta-analysis of 61 trials demonstrated that
26
+ 624141 ICTXXX10.1177/1534735415624141Ratcliff et alIntegrative Cancer Therapies
27
+ research-article2016
28
+ 1Center for Innovations in Quality, Effectiveness and Safety, Michael E.
29
+ DeBakey VA Medical Center, Houston, TX, USA
30
+ 2Baylor College of Medicine, Houston, TX, USA
31
+ 3VA South Central Mental Illness Research, Education, and Clinical
32
+ Center, Houston, TX, USA
33
+ 4The University of Texas MD Anderson Cancer Center, Houston, TX,
34
+ USA
35
+ 5University of Rochester Medical School, Rochester, NY, USA
36
+ 6Swami Vivekananda Yoga Anusandhana Samsthana, Bengaluru, India
37
+ Corresponding Author:
38
+ Lorenzo Cohen, Integrative Medicine Program, The University of Texas
39
+ MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 460, Houston,
40
+ TX 77030, USA.
41
+ Email: [email protected].
42
+ Examining Mediators and
43
+ Moderators of Yoga for
44
+ Women With Breast
45
+ Cancer Undergoing Radiotherapy
46
+ Chelsea G. Ratcliff, PhD1,2,3, Kathrin Milbury, PhD4, Kavita D. Chandwani,
47
+ MD, MPH, DrPH5, Alejandro Chaoul, PhD4, George Perkins, MD4, Raghuram
48
+ Nagarathna, PhD6, Robin Haddad, MPH4, Hongasandra Ramarao Nagendra, PhD6,
49
+ N. V. Raghuram, BS6, Amy Spelman, PhD4, Banu Arun, MD4, Qi Wei, MS4, and
50
+ Lorenzo Cohen, PhD4
51
+ Abstract
52
+ Hypothesis. This study examines moderators and mediators of a yoga intervention targeting quality-of-life (QOL) outcomes in
53
+ women with breast cancer receiving radiotherapy.Methods. Women undergoing 6 weeks of radiotherapy were randomized
54
+ to a yoga (YG; n = 53) or stretching (ST; n = 56) intervention or a waitlist control group (WL; n = 54). Depressive symptoms
55
+ and sleep disturbances were measured at baseline. Mediator (posttraumatic stress symptoms, benefit finding, and cortisol
56
+ slope) and outcome (36-item Short Form [SF]-36 mental and physical component scales [MCS and PCS]) variables were
57
+ assessed at baseline, end-of-treatment, and 1-, 3-, and 6-months posttreatment. Results. Baseline depressive symptoms
58
+
59
+ (P = .03) and sleep disturbances (P < .01) moderated the Group × Time effect on MCS, but not PCS. Women with high
60
+ baseline depressive symptoms in YG reported marginally higher 3-month MCS than their counterparts in WL (P = .11).
61
+ Women with high baseline sleep disturbances in YG reported higher 3-months MCS than their counterparts in WL (P < .01)
62
+ and higher 6-month MCS than their counterparts in ST (P = .01). YG led to greater benefit finding than ST and WL across
63
+ the follow-up (P = .01). Three-month benefit finding partially mediated the effect of YG on 6-month PCS. Posttraumatic
64
+ stress symptoms and cortisol slope did not mediate treatment effect on QOL. Conclusion. Yoga may provide the greatest
65
+ mental-health–related QOL benefits for those experiencing pre-radiotherapy sleep disturbance and depressive symptoms.
66
+ Yoga may improve physical-health–related QOL by increasing ability to find benefit in the cancer experience.
67
+ Keywords
68
+ breast cancer, QOL, yoga, moderation, mediation
69
+ Submitted Date: 8 September 2015; Revised Date: 19 November 2015; Acceptance Date: 20 November 2015
70
+ at UNIV OF TX MD ANDERSON on April 11, 2016
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+ ict.sagepub.com
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+ Downloaded from
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+ 2
74
+ Integrative Cancer Therapies 
75
+ psychological distress moderated the efficacy of psychosocial
76
+ treatments regarding mood management for cancer patients.7
77
+ Furthermore, a meta-analysis of trials targeting depressed
78
+ cancer patients indicated that psychotherapeutic and pharma-
79
+ cological interventions are effective in reducing depressive
80
+ symptoms with sustained effects.8
81
+ Although these meta-analyses have been instrumental in
82
+ identifying the importance of examining moderators of treat-
83
+ ment efficacy, they have rarely included trials of complemen-
84
+ tary medicine interventions such as yoga and meditation.
85
+ Such exclusion is surprising in light of the rapid proliferation
86
+ of Eastern-influenced behavioral interventions in oncology
87
+ research and practice.9-17 Yoga in particular has gained popu-
88
+ larity in the cancer setting, and several systematic reviews
89
+ and meta-analyses have examined the QOL benefits associ-
90
+ ated with cancer patients’ and survivors’ yoga practice.14-17
91
+ For instance, a meta-analysis of 13 randomized controlled
92
+ trials (RCTs) of yoga in cancer patients and survivors revealed
93
+ large effects for psychological health; medium effects for
94
+ fatigue, general QOL, and psychosocial well-being; and
95
+ small effects for sleep disturbances and physical function.17 It
96
+ is important to note that the reviewed trials did not select for
97
+ elevated symptom burden (ie, used an “all-comer” approach).
98
+ Thus, yoga may lead to even greater grains in at-risk partici-
99
+ pants. However, with the exception of some limited evi-
100
+ dence,18 it is largely unknown if patients with elevated
101
+ distress derive greater QOL benefit from a yoga intervention
102
+ compared with their less-distressed counterparts.
103
+ The benefits of yoga are multifaceted, targeting not only
104
+ psychological but also physical and spiritual dimensions of
105
+ QOL.17 Thus, participant characteristics beyond psycho-
106
+ logical distress may moderate the efficacy of a yoga inter-
107
+ vention. Sleep disturbances, potentially caused by the
108
+ cancer process itself or cancer treatments, are commonly
109
+ experienced among women with breast cancer19-21 and are
110
+ associated with impaired QOL in cancer patients even when
111
+ controlling for depression and fatigue.20,22,23 Because yoga
112
+ is an effective treatment to improve sleep in cancer patients
113
+ and survivors,9,24,25 it may be particularly efficacious for
114
+ patients reporting high levels of sleep disturbances. In fact,
115
+ a multicenter RCT involving 410 survivors with moderate
116
+ to high sleep disturbances demonstrated that an 8-session
117
+ yoga intervention improved self-reported and actigraphy-
118
+ assessed sleep relative to standard care.9 However, to the
119
+ best of our knowledge, sleep disturbances have not yet been
120
+ examined as a yoga intervention moderator.
121
+ Mediators of Mind-Body Interventions
122
+ In addition to lacking a clear understanding of for whom
123
+ mind-body interventions are most helpful, no cohesive the-
124
+ oretical framework has been proposed to explain how and
125
+ why yoga interventions produce change.26,27 A recent sys-
126
+ tematic review reports that few potential mechanisms of
127
+ yoga have been explored to date, and no mechanisms of
128
+ yoga have been tested in cancer populations.28,29 The excep-
129
+ tion is one study on mindfulness-based stress reduction for
130
+ cancer patients, which includes some yoga. This study
131
+ found that increasing mindfulness partially mediated the
132
+ intervention’s beneficial effects on stress and posttraumatic
133
+ avoidance.30 However, in light of the growing RCTs exam-
134
+ ining yoga in cancer and the limited exploration of media-
135
+ tors of this intervention, further examination of yoga
136
+ mediators guided by a conceptual model is needed.
137
+ We propose a stress response model as a way to under-
138
+ stand how yoga produces change in cancer patients. A diag-
139
+ nosis of cancer and its treatment are typically experienced
140
+ as stressful, or even traumatic, events, and yoga interven-
141
+ tions are generally conceptualized within the framework of
142
+ a stress reduction program. Thus, practicing yoga may
143
+ improve health outcomes in cancer patients via modulating
144
+ the stress response.28 Put another way, yoga may affect
145
+ posttraumatic stress symptoms, such as cognitive interfer-
146
+ ence and avoidance, while also increasing posttraumatic
147
+ growth or benefit finding. Importantly, both constructs of
148
+ trauma response (ie, posttraumatic stress symptoms and
149
+ benefit finding) have been consistently and prospectively
150
+ associated with psychological and physical QOL outcomes
151
+ in various cancer samples.31-39
152
+ With this model in mind, we previously examined the
153
+ effects of yoga versus usual care on intrusive thoughts/
154
+ avoidance behaviors and benefit finding in a small pilot trial
155
+ in women with breast cancer undergoing radiotherapy.10
156
+ Differences between groups in benefit finding did not
157
+ emerge until the last 3-month assessment time point, pre-
158
+ cluding the examination of benefit finding as an interven-
159
+ tion mediator. Surprisingly, the yoga group reported
160
+ increased intrusive thoughts 1 month after the end of radio-
161
+ therapy compared with the women in the usual care group,
162
+ with subsequent reduction at the 3-month time point, and
163
+ nonsignificant
164
+ reductions
165
+ in
166
+ avoidance
167
+ behaviors.
168
+ Interestingly, intrusive thoughts at 1 month were positively
169
+ associated with benefit finding at 3 months. There is some
170
+ evidence to suggest that heightened levels of intrusive
171
+ thoughts experienced during the aftermath of a traumatic
172
+ event may help individuals more effectively adjust to the
173
+ stressor and ultimately to find benefit in the traumatic expe-
174
+ rience.40 Thus, the increase in intrusive thoughts associated
175
+ with yoga may have led to better, more mindful processing
176
+ of the cancer experience, ultimately fostering finding mean-
177
+ ing in the cancer experience.
178
+ Moreover, within a trauma response model, cortisol
179
+ rhythmicity may represent one biological pathway by which
180
+ mind-body interventions improve health and well-being.
181
+ Both types of trauma response (posttraumatic stress symp-
182
+ toms and benefit finding) are associated with hypothalamic-
183
+ pituitary-adrenal axis function in cancer patients, which in
184
+ turn is associated with behavioral symptoms (eg, fatigue,
185
+ at UNIV OF TX MD ANDERSON on April 11, 2016
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+ ict.sagepub.com
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+ Downloaded from
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+ Ratcliff et al
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+ 3
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+ sleep disturbance, and depression), making changes to cor-
191
+ tisol rhythmicity a potential mechanism of yoga.41-44
192
+ Although previous studies have shown group main effects
193
+ of a yoga intervention on diurnal cortisol and speculated a
194
+ mediating effect, no empirical evidence exists to date.28
195
+ The Present Study
196
+ The goal of the current study was to examine moderators
197
+ and mediators of a previously reported 3-arm yoga RCT for
198
+ women diagnosed with breast cancer undergoing radiother-
199
+ apy.45 We focused only on mediators and moderators of the
200
+ primary outcome variable: health-related QOL. First, we
201
+ hypothesized that, compared with active and waitlist con-
202
+ trol groups, the yoga program would be especially benefi-
203
+ cial at improving posttreatment QOL for women with
204
+ elevated pretreatment depressive symptoms and sleep dis-
205
+ turbance. Second, we hypothesized that the beneficial QOL
206
+ effects of the intervention would be mediated by improved
207
+ trauma responses (ie, short-term increases in intrusive
208
+ thoughts and reduction in avoidance behaviors and increased
209
+ benefit finding) as well as better stress hormone regulation
210
+ (ie, a steeper cortisol slope).
211
+ Method
212
+ Participants
213
+ Women were recruited prior to radiotherapy treatment
214
+ (XRT), with inclusion criteria being the following: ≥18
215
+ years old; ability to read, write, and speak English; diag-
216
+ nosed with stage 0 to III breast cancer; and scheduled to
217
+ undergo daily adjuvant XRT for 6 weeks at MD Anderson
218
+ Cancer Center. Patients with lymphedema, metastatic bone
219
+ disease, deep-vein thrombosis, documented diagnosis of a
220
+ formal thought disorder, and extreme mobility problems or
221
+ those who had practiced yoga in the year before diagnosis
222
+ were excluded. The protocol was approved by the institu-
223
+ tional review board.
224
+ Procedures
225
+ Details of the study procedures have been reported else-
226
+ where.45 Briefly, after receiving written informed consent,
227
+ self-report and saliva samples (for cortisol data) were col-
228
+ lected from participants at baseline before randomization,
229
+ during the last week of XRT, and 1, 3, and 6 months later.
230
+ Participants were randomly assigned to 1 of 3 groups:
231
+ (1) yoga (YG); (2) stretching control (ST); or waitlist con-
232
+ trol (WL) using a form of adaptive randomization,46 accord-
233
+ ing to age, stage of disease, time since diagnosis, type of
234
+ surgery, and chemotherapy (neoadjuvant or adjuvant).
235
+ Participants in the WL group received usual care, completed
236
+ all assessments on the same timeline as the active groups,
237
+ and were offered yoga classes at the end of their study par-
238
+ ticipation. All participants were asked to refrain from par-
239
+ ticipating in any other yoga classes while on study.
240
+ Participants in the YG and ST groups attended up to three
241
+ 60-minute classes per week during their 6 weeks of XRT.
242
+ Each participant received an audio CD and a written manual
243
+ of the program to encourage at-home practice.
244
+ The integrated yoga program, described previously,10
245
+ included the following: (1) preparatory warm-up synchro-
246
+ nized with breathing; (2) selected postures, or asanas (for-
247
+ ward-, backward-, and side-bending asanas in sitting and
248
+ standing positions, cobra posture, crocodile, and half-
249
+ shoulder-stand with support); (3) deep relaxation (supine
250
+ posture); (4) alternate-nostril breathing or pranayama; and
251
+ (5) meditation. The program was taught by Vivekananda
252
+ Yoga Anusandhana Samsthana–trained teachers with spe-
253
+ cific oncology training.
254
+ The stretching program included exercises recom-
255
+ mended specifically for women undergoing or recovering
256
+ from breast cancer treatment.47,48 The exercises approxi-
257
+ mated the gross movements of the yoga exercises and were
258
+ taught by cancer center physiotherapists.
259
+ Measures
260
+ Primary Intervention Outcome: Health-Related QOL.  Overall
261
+ QOL was assessed by the Medical Outcomes Study 36-item
262
+ Short Form survey (SF-36) and was the primary outcome of
263
+ the clinical trial published previously.45 The SF-36 assesses
264
+ physical functioning, physical impediments to role func-
265
+ tioning, bodily pain, general health perceptions, vitality,
266
+ social functioning, emotional impediments to role function-
267
+ ing, and mental health and includes an overall physical and
268
+ mental component scale (PCS and MCS).49,50 To reduce the
269
+ number of analyses, only the component scales are included
270
+ in outcome analyses. Higher scores reflect better QOL.
271
+ Proposed Moderators.  Depressive symptoms were assessed
272
+ using the Centers for Epidemiological Studies–Depression
273
+ measures (CES-D),51 a well-validated measure focusing on
274
+ affective components of depression. Lower scores reflect
275
+ fewer depressive symptoms. In this study sample, the inter-
276
+ nal reliability was high (Cronbach’s α = .89).
277
+ Sleep disturbances were assessed using the Pittsburgh
278
+ Sleep Quality Index (PSQI),52 a questionnaire that assesses
279
+ sleep disturbances over a 1-month period. We report on the
280
+ total score, with lower scores reflecting fewer sleep distur-
281
+ bances. Acceptable internal reliability was found in this
282
+ study sample (Cronbach’s α = .70).
283
+ Proposed Mediators: Posttraumatic Responses.  Posttraumatic
284
+ stress symptoms were measured by the Impact of Event
285
+ Scale (IES), a scale that assesses the 2 most common catego-
286
+ ries of responses to traumatic events: intrusion (intrusively
287
+ at UNIV OF TX MD ANDERSON on April 11, 2016
288
+ ict.sagepub.com
289
+ Downloaded from
290
+ 4
291
+ Integrative Cancer Therapies 
292
+ experienced ideas, images, feelings, or bad dreams) and
293
+ avoidance behaviors (conscious efforts to avoid certain
294
+ ideas, feelings, or situations).53 We report on the intrusive
295
+ thoughts and avoidance behaviors subscales and the total
296
+ score. Lower scores reflect fewer symptoms. Adequate
297
+ internal reliability was found for the total scale (Cronbach’s
298
+ α = .85) as well as intrusive (Cronbach’s α = .85) and avoid-
299
+ ance (Cronbach’s α = .79) subscales.
300
+ Participants’ ability to find benefit was measured by the
301
+ Benefit Finding Scale (BFS),54,55 a scale assessing accep-
302
+ tance of life’s imperfections, change in priorities, and devel-
303
+ opment of a sense of purpose in life as a result of having
304
+ been diagnosed with cancer. Higher scores reflect greater
305
+ benefit finding. In this study sample, the internal reliability
306
+ was high (Cronbach’s α = .94).
307
+ Cortisol Rhythmicity.  Cortisol was obtained via 5 saliva sam-
308
+ ples (waking, 45 minutes later, approximately 8 and 12
309
+ hours after waking, and at bedtime) for 3 consecutive days
310
+ at each assessment. Participants chewed on a cotton swab
311
+ (Salivette) and placed it in a plastic tube (Sarstedt), which
312
+ was then frozen at −80°C for later time-resolved immuno-
313
+ assay with fluorescence detection performed at the Univer-
314
+ sity of Dresden. Values <0.0001 and >70 nmol/L were
315
+ classified as missing. If patients missed a collection point,
316
+ they were told to leave the tube empty. Reliability for each
317
+ collection time point within a day across the 3 days and the
318
+ 5 assessment time points ranged from 0.20 to 0.87, with
319
+ only 6 out of 25 α values (5 samples a day at 5 time points)
320
+ dropping below 0.50. Reliability was directly related to the
321
+ sample size, which dropped off by the 6-month follow-up.
322
+ A steeper, more-negative cortisol slope indicates better cor-
323
+ tisol regulation.
324
+ Covariates.  Patients also completed basic demographic
325
+ information (eg, age, marital status, education). Medical
326
+ information was obtained from electronic medical records.
327
+ Data Analyses
328
+ Hypothesis 1: To evaluate whether the intervention was
329
+ more effective in regard to health-related QOL (SF-36
330
+ MCS and PCS) for participants with high depressive symp-
331
+ toms (Hypothesis 1A) or greater sleep disturbance
332
+ (Hypothesis 1B) at baseline, we used an ANCOVA frame-
333
+ work to first examine the Group × Baseline moderator
334
+ effect using PROC MIXED in SAS v9.2. This was fol-
335
+ lowed by a Group × Time × Baseline moderator ANCOVA
336
+ to see if the moderator effect varied by time. We controlled
337
+ for the respective baseline outcome as well as randomiza-
338
+ tion factors (age, stage of disease, time since diagnosis,
339
+ type of surgery, and chemotherapy type). We also con-
340
+ trolled for baseline SF-36 general health scores in all anal-
341
+ yses as a result of imbalances across groups. We treated
342
+ time as a categorical variable and the intercept as a random
343
+ effect. We specified an unstructured covariance structure.
344
+ For significant 3-way interactions, we decomposed the
345
+ interaction according to high and low (mean ± ½SD) base-
346
+ line depressive symptoms or sleep disturbance and com-
347
+ pared the least-squared means (LSM) for each group at
348
+ each time point using a general linear model analysis, con-
349
+ trolling for baseline levels of the outcome variable and
350
+ illustrating the interaction by plotting the LSM.
351
+ Hypothesis 2: We were interested in determining media-
352
+ tors of significant group effects on health-related QOL. The
353
+ original trial45 demonstrated group differences in SF-36
354
+ PCS at 1 and 3 months, and a subscale of the SF-36 PCS
355
+ (physical functioning) at those time points and 6 months.
356
+ We chose to examine mediators of SF-36 PCS at 1, 3, and 6
357
+ months, rather than the physical functioning subscale
358
+ because the SF-36 PCS is a more comprehensive index of
359
+ physical health–related QOL.
360
+ To determine the mediator variables, we regressed each
361
+ proposed mediator (ie, IES, BFS, and cortisol slope) on
362
+ group, time, and the Group × Time interaction using the
363
+ model and covariates described above. Where there was a
364
+ group or Group × Time effect on the proposed mediator
365
+ variable, we chose the time point associated with the largest
366
+ group or Group × Time effect as the mediator. If a proposed
367
+ mediator variable did not significantly differ by group, it
368
+ was not further examined. Only primary outcome variables
369
+ assessed after our chosen mediators were included as
370
+ dependent variables in the mediation models to enable a
371
+ predictive relationship between the mediator and the depen-
372
+ dent variable to be established.56
373
+ To test for mediation, we calculated indirect effects using
374
+ Hayes and Preacher’s bias-corrected bootstrap procedure
375
+ via the MEDIATE macro for SPSS, which is designed to
376
+ estimate indirect effects of multicategorical independent
377
+ variables.57 Indicator coding of the grouping variable was
378
+ used, with WL functioning as the reference group. D1 codes
379
+ the effect of YG compared with WL controlling for ST, and
380
+ D2 codes the effect of ST compared with WL controlling
381
+ for YG. Indirect effects were determined significant when
382
+ the mean of the indirect effect across all 5000 bootstrap
383
+ samples was associated with a bias-corrected confidence
384
+ interval that did not include 0.57
385
+ Results
386
+ Attrition and Adherence
387
+ Out of 294 eligible women approached, 191 consented to
388
+ participate; 13 dropped out before, and 15 after, randomiza-
389
+ tion, for a baseline sample size of 163 (YG = 53; ST = 56;
390
+ WL = 54). Measurements were obtained for 80% of the sam-
391
+ ple at 6 months (n = 131; YG = 43, ST = 42, WL =46; see
392
+ original clinical trial45 for CONSORT). Out of a maximum
393
+ at UNIV OF TX MD ANDERSON on April 11, 2016
394
+ ict.sagepub.com
395
+ Downloaded from
396
+ Ratcliff et al
397
+ 5
398
+ possible 18 classes, 87% of YG and 85% of ST participants
399
+ attended ≥12 classes (YG = 13.8; ST = 14.7). Only 3 patients
400
+ in each group attended fewer than half the classes. There
401
+ were no significant differences in demographic, medical, or
402
+ baseline self-report scores between those who attended
403
+ ≥75% of classes compared with those who did not. For the
404
+ YG group, self-reported practice outside of class was high
405
+ (≥twice per week) at 1 month posttreatment and then
406
+ declined at 3 and 6 months (71%, 55%, and 45%, respec-
407
+ tively). For the ST group, self-reported practice outside of
408
+ class (≥twice per week) was lower at 1 month and then
409
+ increased somewhat at 3 and 6 months (53%, 69%, and 60%,
410
+ respectively). WL participants were offered the YG program
411
+ after data collection was complete, but no data were col-
412
+ lected from the WL during or after yoga.
413
+ There were also no group, demographic, or baseline self-
414
+ report differences between those who completed the
415
+ 6-month follow-up assessment and those who did not (Ps >
416
+ .14), with the exception that older adults were more likely
417
+ to complete the 6-month assessment.
418
+ Baseline Sample Characteristics
419
+ The 3 groups were similar on all medical and demographic
420
+ variables (Table 1). There were no statistically significant
421
+ differences among the groups on any of the self-reported
422
+ variables at baseline, apart from the SF-36 general health
423
+ subscale. Women in YG reported lower baseline general
424
+ health compared with those in ST (P = .01). Depending on
425
+ the time point, 21% to 34% of participants did not provide
426
+ saliva samples. There were no differences between patients
427
+ providing samples and those who did not based on group
428
+ assignment, medical, demographic, or outcome measures.
429
+ We present the baseline and follow-up means of self-
430
+ reported variables in Table 2.
431
+ Hypothesis 1: Baseline Depressive Symptoms
432
+ and Sleep Disturbance as Moderators of
433
+ Intervention Outcomes
434
+ There were no significant Group × Baseline Depressive
435
+ Symptom (CES-D) interaction effects on mental health–
436
+ related QOL (SF-36 MCS). However, there was a signifi-
437
+ cant Group × Time × Baseline CES-D interaction effect on
438
+ SF-36 MCS (F(6, 324) = 2.40; P < .03), suggesting that the
439
+ effect varied by time. We decomposed the interaction
440
+ according to high and low (mean ± ½SD) baseline CES-D
441
+ scores. There were no statistically significant differences in
442
+ SF-36 MCS scores between groups for those with low or
443
+ high baseline depressive symptoms at any assessment point
444
+ (Figure 1A). However, women with high baseline depres-
445
+ sive symptoms in YG had a trend toward higher SF-36
446
+ MCS scores at 3 months compared with WL (P = .107), and
447
+ their 1-, 3-, and 6-month SF-36 MCS scores were no differ-
448
+ ent from those of women scoring low on baseline depres-
449
+ sive symptoms. There were no significant Group × Baseline
450
+ CES-D or Group × Time × Baseline CES-D interaction
451
+ effects on physical health–related QOL (SF-36 PCS).
452
+ There was no significant Group × Baseline sleep distur-
453
+ bance (PSQI) interaction effects on mental health–related
454
+ QOL (SF-36 MCS). However, there was a significant Group
455
+ × Time × Baseline PSQI interaction effect on SF-36 MCS
456
+ (F(6, 318) = 3.40, P < .01). We decomposed the interaction
457
+ according to high and low (mean ± ½SD) baseline PSQI
458
+ scores. There were no significant differences in SF-36 MCS
459
+ scores between groups for those with low baseline sleep
460
+ disturbances at any assessment point (Figure 1B). However,
461
+ among the women with high baseline sleep disturbances,
462
+ there was a significant Group × Time effect (F(6, 83) = 3.52;
463
+ P = .003). Specifically, women with high sleep disturbances
464
+ in YG reported higher 3-month SF-36 MCS scores than
465
+ their counterparts in WL (t(83) = 3.15; P = .002) and higher
466
+ 6-month SF-36 MCS scores than their counterparts in ST
467
+ (t(83) = 2.56; P = .012), and their SF-36 MCS scores at each
468
+ time point were no different from that of women reporting
469
+ low sleep disturbance at baseline. There were no significant
470
+ Group × Baseline sleep disturbance (PSQI) or Group ×
471
+ Time × Sleep disturbance (PSQI) interaction effects on
472
+ physical health–related QOL (SF-36 PCS).
473
+ Hypothesis 2: Mediators of Intervention Effect
474
+ on QOL
475
+ Posttraumatic Stress Symptoms.  Results revealed no signifi-
476
+ cant Group × Time interaction effect on IES total scale,
477
+ intrusive thoughts, or avoidance behaviors subscales scores
478
+ (Ps > .5). Additionally, there were no main effects of group
479
+ or time on the IES total scale or intrusive thoughts subscale
480
+ (Ps > .2). There was a main effect of group (F(2,132) = 3.17;
481
+ P = .05), but not time (P = .6), for the IES avoidance sub-
482
+ scale. Specifically, YG was associated with greater IES
483
+ avoidance scores (LSM = 11.31; SE = 0.82) compared with
484
+ WL (LSM = 8.52; SE = 0.76; P = .01). IES avoidance scores
485
+ did not differ between ST (LSM = 10.16; SE = 0.79) and
486
+ YG or WL (Ps > .1). Figure 2A presents LSMs of IES
487
+ avoidance for groups across time.
488
+ The time point at which groups differed most on IES
489
+ avoidance was at 6 months (F(2, 112) = 3.23; P = .04; Cohen’s
490
+
491
+ d = 0.40), with women in YG (LSM = 11.29; SE = 1.18;
492
+
493
+ P = .02) and ST (LSM = 10.14; SE = 1.19; P = .09) reporting
494
+ greater IES avoidance scores compared with women in WL
495
+ (LSM = 7.34; SE = 1.69). Using the 6-month time point for
496
+ the mediator does not enable examining a temporal relation-
497
+ ship between the mediator and outcome, and there were no
498
+ significant group differences at earlier time points, precluding
499
+ examination of IES avoidance as an intervention mediator.
500
+ at UNIV OF TX MD ANDERSON on April 11, 2016
501
+ ict.sagepub.com
502
+ Downloaded from
503
+ 6
504
+ Integrative Cancer Therapies 
505
+ Benefit Finding.  Results revealed no significant Group ×
506
+ Time interaction effect on BFS scores (P = .9). However,
507
+ there was a main effect of group (F(2,132) = 4.60; P = .01) and
508
+ a main effect of time (F(3,335) = 3.12; P = .03) on benefit
509
+ finding. Specifically, YG was associated with greater bene-
510
+ fit finding (LSM = 46.21; SE = 1.28) compared with ST
511
+ (LSM = 42.24; SE = 1.23; P = .03) and WL (LSM = 41.05;
512
+ SE = 1.19; P < .01). Benefit finding did not differ between
513
+ ST and WL (P = .5). Figure 2B presents LSMs of benefit
514
+ finding for groups across time.
515
+ Women in YG reported higher levels on benefit finding
516
+ relative to WL at 1, 3, and 6 months and relative to ST at 3
517
+ and 6 months (Ps < .05), with no differences between ST
518
+ and WL. Groups differed most on benefit finding at 3
519
+ months (F(2, 103) = 3.12; P = .05; Cohen’s d = 0.38), with
520
+ women in YG reporting greater benefit finding scores (LSM
521
+ = 46.32; SE = 1.85) compared with ST (LSM = 40.90; SE =
522
+ 1.78; P = .04) and WL (LSM = 40.57; SE = 1.69; P = .02).
523
+ Therefore, 3-month benefit finding was examined as a
524
+ mediator of group’s effects on physical health–related QOL
525
+ Table 1.  Baseline Characteristics of Study Participants, by Group.
526
+ Yoga
527
+ Stretch
528
+ Waitlist
529
+
530
+ n = 53 (33%)
531
+ n = 56 (34%)
532
+ n = 54 (33%)
533
+ Disease stage, n (%)
534
+   0
535
+ 5
536
+ 10
537
+ 6
538
+ 11
539
+ 7
540
+ 13
541
+   I
542
+ 16
543
+ 30
544
+ 18
545
+ 32
546
+ 17
547
+ 31
548
+   II
549
+ 15
550
+ 28
551
+ 14
552
+ 25
553
+ 15
554
+ 28
555
+   III
556
+ 17
557
+ 32
558
+ 18
559
+ 32
560
+ 15
561
+ 28
562
+ ER/PR status (n = 156), n (%)
563
+   ER+/PR+
564
+ 32
565
+ 62
566
+ 33
567
+ 62
568
+ 31
569
+ 61
570
+   ER+/PR−
571
+ 7
572
+ 13
573
+ 7
574
+ 13
575
+ 6
576
+ 12
577
+   ER−/PR+
578
+ 1
579
+ 2
580
+ 0
581
+ 0
582
+ 3
583
+ 6
584
+   ER−/PR−
585
+ 12
586
+ 23
587
+ 13
588
+ 25
589
+ 11
590
+ 21
591
+ Surgery, n (%)
592
+   Mastectomy (without reconstruction)
593
+ 12
594
+ 23
595
+ 17
596
+ 31
597
+ 12
598
+ 22
599
+   Mastectomy (with reconstruction)
600
+ 6
601
+ 11
602
+ 3
603
+ 5
604
+ 5
605
+ 9
606
+   Breast conserving
607
+ 35
608
+ 66
609
+ 36
610
+ 64
611
+ 37
612
+ 69
613
+ Chemotherapy, n (%)
614
+   Yes
615
+ 36
616
+ 68
617
+ 34
618
+ 61
619
+ 34
620
+ 63
621
+ Hormone treatment (n = 156), n (%)
622
+   Yes
623
+ 33
624
+ 62
625
+ 38
626
+ 70
627
+ 34
628
+ 67
629
+ Marital status (n = 151), n (%)
630
+   Married and living together
631
+ 31
632
+ 67
633
+ 37
634
+ 71
635
+ 34
636
+ 64
637
+   Not cohabiting
638
+ 15
639
+ 33
640
+ 15
641
+ 29
642
+ 19
643
+ 36
644
+ Ethnicity (n = 150), n (%)
645
+   Black/African American
646
+ 9
647
+ 19
648
+ 9
649
+ 17
650
+ 7
651
+ 13
652
+   White/Caucasian
653
+ 32
654
+ 68
655
+ 28
656
+ 55
657
+ 37
658
+ 71
659
+   Latino/Hispanic/Mexican
660
+ 4
661
+ 9
662
+ 8
663
+ 16
664
+ 5
665
+ 10
666
+   Asian/Oriental/Pacific Islander
667
+ 2
668
+ 4
669
+ 4
670
+ 8
671
+ 1
672
+ 2
673
+   Other
674
+ 0
675
+ 0
676
+ 2
677
+ 4
678
+ 2
679
+ 4
680
+ Employment status (n = 140), n (%)
681
+   Employed part-/full-time
682
+ 15
683
+ 33
684
+ 21
685
+ 43
686
+ 18
687
+ 39
688
+   Employed, taken time off
689
+ 11
690
+ 25
691
+ 10
692
+ 20
693
+ 5
694
+ 11
695
+   Not employed
696
+ 19
697
+ 42
698
+ 18
699
+ 37
700
+ 23
701
+ 50
702
+ Education (n = 152), n (%)
703
+   Some college or lower
704
+ 27
705
+ 57
706
+ 26
707
+ 50
708
+ 32
709
+ 60
710
+   College and higher education
711
+ 20
712
+ 43
713
+ 26
714
+ 50
715
+ 21
716
+ 40
717
+ Income (n = 149), n (%)
718
+   >$75 000
719
+ 31
720
+ 67
721
+ 26
722
+ 51
723
+ 26
724
+ 50
725
+   <$75 000
726
+ 15
727
+ 33
728
+ 25
729
+ 49
730
+ 26
731
+ 50
732
+ Age (mean, SE)
733
+ 52.38
734
+ 1.35
735
+ 51.14
736
+ 1.32
737
+ 52.11
738
+ 1.34
739
+ Abbreviations: ER = Estrogen receptor; PR = Progesterone receptor
740
+ at UNIV OF TX MD ANDERSON on April 11, 2016
741
+ ict.sagepub.com
742
+ Downloaded from
743
+ Ratcliff et al
744
+ 7
745
+ Table 2.  Raw Means and SDs of Measures at Baseline and Follow-up.a
746
+ Yoga
747
+ Stretch
748
+ Waitlist
749
+
750
+ Mean
751
+ SD
752
+ Mean
753
+ SD
754
+ Mean
755
+ SD
756
+ Primary outcome
757
+ variables
758
+ SF-36 PCS
759
+   Baseline
760
+ 41.9
761
+ 9.6
762
+ 43.4
763
+ 8.6
764
+ 44.5
765
+ 9.4
766
+   Post-XRT
767
+ 42.3
768
+ 9.2
769
+ 44.5
770
+ 8.1
771
+ 44.1
772
+ 8.4
773
+   1 Month
774
+ 47.0*
775
+ 8.1
776
+ 46.9
777
+ 9.1
778
+ 45.4**
779
+ 7.6
780
+   3 Months
781
+ 48.2*
782
+ 7.3
783
+ 47.6
784
+ 8.8
785
+ 45.8**
786
+ 7.8
787
+   6 Months
788
+ 46.9b
789
+ 9.3
790
+ 47.5
791
+ 8.6
792
+ 46.6
793
+ 7.5
794
+ SF-36 MCS
795
+   Baseline
796
+ 42.1
797
+ 12.4
798
+ 45.6
799
+ 10.3
800
+ 42.2
801
+ 12.9
802
+   Post-XRT
803
+ 47.2
804
+ 13.5
805
+ 49.7
806
+ 8.9
807
+ 46.8
808
+ 11.5
809
+   1 Month
810
+ 46.2
811
+ 13.1
812
+ 47.1
813
+ 11.2
814
+ 49.0
815
+ 10.1
816
+   3 Months
817
+ 46.5
818
+ 12.6
819
+ 49.8
820
+ 10.2
821
+ 46.9
822
+ 12.2
823
+   6 Months
824
+ 46.8
825
+ 12.7
826
+ 50.8
827
+ 9.5
828
+ 48.8
829
+ 9.9
830
+ Moderator variables
831
+ CES-D
832
+   Baseline
833
+ 15.5
834
+ 10.5
835
+ 11.9
836
+ 5.9
837
+ 14.9
838
+ 10.2
839
+   Post-XRT
840
+ 12.2
841
+ 9.7
842
+ 10.3
843
+ 7.5
844
+ 12.4
845
+ 9.6
846
+   1 Month
847
+ 13.1
848
+ 10.7
849
+ 11.6
850
+ 9.6
851
+ 12.3
852
+ 8.3
853
+   3 Months
854
+ 13.9
855
+ 10.8
856
+ 9.6
857
+ 8.8
858
+ 12.9
859
+ 10.5
860
+   6 Months
861
+ 13.9
862
+ 11.8
863
+ 10.4
864
+ 9.3
865
+ 11.5
866
+ 9.0
867
+ PSQI
868
+   Baseline
869
+ 8.3
870
+ 3.9
871
+ 8.5
872
+ 4.0
873
+ 8.2
874
+ 3.7
875
+   Post-XRT
876
+ 6.7
877
+ 3.1
878
+ 8.3
879
+ 4.0
880
+ 7.3
881
+ 3.7
882
+   1 Month
883
+ 7
884
+ 3.8
885
+ 7.5
886
+ 4.2
887
+ 5.9
888
+ 3.6
889
+   3 Months
890
+ 6.5
891
+ 3.1
892
+ 7.2
893
+ 3.3
894
+ 6.5
895
+ 3.8
896
+   6 Months
897
+ 7
898
+ 3.5
899
+ 7.2
900
+ 3.9
901
+ 6.4
902
+ 4.1
903
+ Mediator variables
904
+ IES total
905
+   Baseline
906
+ 22
907
+ 15.2
908
+ 20.1
909
+ 13.3
910
+ 20.4
911
+ 13.3
912
+   Post-XRT
913
+ 17.3
914
+ 13.9
915
+ 17.8
916
+ 15
917
+ 15.8
918
+ 12.1
919
+   1 Month
920
+ 17.1
921
+ 13.5
922
+ 16.9
923
+ 13
924
+ 14.4
925
+ 12.1
926
+   3 Months
927
+ 18.2
928
+ 13
929
+ 17.1
930
+ 15.7
931
+ 15.7
932
+ 13.7
933
+   6 Months
934
+ 18.7
935
+ 16.6
936
+ 16.4
937
+ 12.8
938
+ 11.9
939
+ 10.6
940
+ IES intrusive thoughts
941
+   Baseline
942
+ 10.4
943
+ 8.5
944
+ 8.9
945
+ 7.3
946
+ 8.7
947
+ 7.6
948
+   Post-XRT
949
+ 6.5
950
+ 6.3
951
+ 7.5
952
+ 7.2
953
+ 6.8
954
+ 6.4
955
+   1 Month
956
+ 5.8
957
+ 6.5
958
+ 6.9
959
+ 6.4
960
+ 5.8
961
+ 6.5
962
+   3 Months
963
+ 6.9
964
+ 6.3
965
+ 7.4
966
+ 8.7
967
+ 5.8
968
+ 5.9
969
+   6 Months
970
+ 7.2
971
+ 8.0
972
+ 6.8
973
+ 6.3
974
+ 4.6
975
+ 4.9
976
+ IES avoidance
977
+   Baseline
978
+ 11.6
979
+ 8.7
980
+ 11.2
981
+ 7.9
982
+ 11.8
983
+ 8.8
984
+   Post-XRT
985
+ 11.1
986
+ 8.9
987
+ 10.4
988
+ 9
989
+ 9
990
+ 7.6
991
+   1 Month
992
+ 11.3
993
+ 8.2
994
+ 10
995
+ 7.9
996
+ 8.6
997
+ 7.8
998
+   3 Months
999
+ 11.3
1000
+ 8.4
1001
+ 9.7
1002
+ 8.7
1003
+ 9.9
1004
+ 9.5
1005
+   6 Months
1006
+ 11.6*
1007
+ 10.4
1008
+ 9.7
1009
+ 8.4
1010
+ 7.3**
1011
+ 7.0
1012
+ BFS
1013
+   Baseline
1014
+ 42.5
1015
+ 13.4
1016
+ 44.1
1017
+ 16
1018
+ 44.3
1019
+ 13.8
1020
+   Post-XRT
1021
+ 46.3
1022
+ 14.1
1023
+ 45.9
1024
+ 16.7
1025
+ 42.9
1026
+ 15.1
1027
+   1 Month
1028
+ 44.4*
1029
+ 16.1
1030
+ 43.8
1031
+ 17.2
1032
+ 41.6**
1033
+ 13.7
1034
+   3 Months
1035
+ 43.9*
1036
+ 17.7
1037
+ 42.7**
1038
+ 18.1
1039
+ 40.8**
1040
+ 16.3
1041
+   6 Months
1042
+ 41.8*
1043
+ 16.9
1044
+ 42.1**
1045
+ 17.4
1046
+ 38**
1047
+ 16.4
1048
+ Cortisol slope
1049
+   Baseline
1050
+ −0.104
1051
+ 0.04
1052
+ −0.118
1053
+ 0.04
1054
+ −0.113
1055
+ 0.04
1056
+   Post-XRT
1057
+ −0.104*
1058
+ 0.04
1059
+ −0.084**
1060
+ 0.05
1061
+ −0.084**
1062
+ 0.05
1063
+   1 Month
1064
+ −0.098*
1065
+ 0.04
1066
+ −0.090
1067
+ 0.05
1068
+ −0.065**
1069
+ 0.05
1070
+   3 Months
1071
+ −0.086
1072
+ 0.06
1073
+ −0.091
1074
+ 0.04
1075
+ −0.078
1076
+ 0.05
1077
+   6 Months
1078
+ −0.090
1079
+ 0.06
1080
+ −0.095
1081
+ 0.04
1082
+ −0.099
1083
+ 0.04
1084
+ Abbreviations: SF-36, 36-item Short Form; PCS, physical component scale; MCS, mental component scale; XRT, radiotherapy treatment; CES-D, Centers for Epidemiological
1085
+ Studies–Depression; PSQI, Pittsburgh Sleep Quality Index; IES, Impact of Event Scale; BFS, Benefit Finding Scale.
1086
+ aMeans with asterisk and double asterisk differ at P < .05 based on multilevel modeling analyses.
1087
+ bThough groups did not differ significantly on physical health–related quality of life (SF-36 PCS) at 6 months, the original trial found that women in the yoga group reported
1088
+ significantly higher scores on the physical functioning subscale of the SF-36 PCS at 6 months compared with the waitlist control group.
1089
+ at UNIV OF TX MD ANDERSON on April 11, 2016
1090
+ ict.sagepub.com
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+ Downloaded from
1092
+ 8
1093
+ Integrative Cancer Therapies 
1094
+ Figure 2.  Group differences on posttraumatic response
1095
+ across time: these figures represent the least-squared means
1096
+ (adjusted for the baseline level of the outcome variable, baseline
1097
+ SF-36 general health subscale, and randomization factors) of a
1098
+ multilevel modeling analysis for each of the mediators over time.
1099
+ Abbreviations: SF-36, 36-item Short Form; IES, Impact of Event
1100
+ Scale; XRT, radiotherapy treatment.
1101
+ (SF-36 PCS) at 6 months because the physical health sub-
1102
+ scale of the SF-36 PCS was the only outcome associated
1103
+ with group differences assessed after 3 months.
1104
+ Hayes and Preacher’s bias-corrected bootstrap test of
1105
+ indirect effect57 revealed that group did indirectly affect
1106
+ physical health–related QOL (SF-36 PCS) at 6 months via
1107
+ benefit finding at 3 months (Figure 3). First, YG resulted in
1108
+ higher 3-month benefit finding compared with WL (the a1
1109
+ pathway; P = .04), whereas ST and WL did not differ in
1110
+ 3-month benefit finding (the a2 pathway; P = .84). Second,
1111
+ holding group constant, those who reported higher benefit
1112
+ finding at 3 months reported higher 6-month physical
1113
+ health–related QOL (the b pathway, P = .04). Third, relative
1114
+ to WL, women in YG reported higher 6-month physical
1115
+ health–related QOL in part because of the positive effect of
1116
+ YG on 3-month benefit finding. Indeed, a bootstrap esti-
1117
+ mate of the indirect effect of YG compared with WL on
1118
+ 6-month physical health–related QOL via 3-month benefit
1119
+ finding revealed a 95% bias-corrected and accelerated
1120
+ (BCa) confidence interval that did not cross zero (B = 0.77;
1121
+ SE = 0.58; CI = 0.01 and 2.58). Thus, 3-month benefit find-
1122
+ ing partially mediated the effect of YG on 6-month physical
1123
+ health–related QOL. Conversely, the BCa confidence inter-
1124
+ val for the indirect effect of ST compared with WL did cross
1125
+ zero and was, therefore, not significant (B = 0.07;
1126
+
1127
+ SE = 0.43; CI = −0.84 and 0.88). Thus, the effect of ST on
1128
+ 6-month physical health–related QOL was not mediated by
1129
+ 3-month benefit finding.
1130
+ Cortisol.  Results revealed no significant group or time effect
1131
+ on cortisol slope (P > .3). There was a trend for a Group ×
1132
+ Time interaction effect (F(6,189) = 1.83; P = .096). Specifi-
1133
+ cally, YG was associated with a steeper cortisol slope
1134
+ Figure 1.  The least-squared means of mental health–related
1135
+ QOL (SF-36 MCS) are from a multilevel modeling analyses
1136
+ controlling for baseline MCS score, baseline SF-36 general
1137
+ health subscale, and randomization factors. Figures illustrate
1138
+ a Group × Time interaction for those with (A) high and low
1139
+ baseline depressive symptoms (mean ± ½SD) on the Center
1140
+ for Epidemiologic Studies (CES-D) and (B) high and low baseline
1141
+ sleep disturbances (mean ± ½SD) on the Pittsburgh Sleep
1142
+ Quality Index (PSQI). Higher SF-36 MCS scores represent
1143
+ greater QOL.
1144
+ Abbreviations: CES-D, Centers for Epidemiological Studies–
1145
+ Depression; QOL, quality of life; SF-36, 36-item Short Form;
1146
+ MCS, mental component scale; YG, yoga group; ST, stretching
1147
+ control group; WL, or waitlist control group; XRT, radiotherapy
1148
+ treatment; PSQI, Pittsburgh Sleep Quality Index.
1149
+ at UNIV OF TX MD ANDERSON on April 11, 2016
1150
+ ict.sagepub.com
1151
+ Downloaded from
1152
+ Ratcliff et al
1153
+ 9
1154
+ compared with ST and WL (Ps < .03) immediately after
1155
+ radiotherapy (post-XRT), and YG was associated with a
1156
+ steeper cortisol slope compared with WL at 1 month (P =
1157
+ .02). Figure 2C represents LSMs of cortisol slope for groups
1158
+ at each time point. Because the effects of group and Group
1159
+ × Time on cortisol slope did not reach significance, it was
1160
+ not examined as a mediator.
1161
+ Exploratory Analyses: Changes in IES and
1162
+ Outcomes
1163
+ Because women in WL reported unexpectedly lower IES
1164
+ avoidance scores over time compared with women in YG,
1165
+ we explored the association between changes in IES avoid-
1166
+ ance and QOL outcomes by regressing group, change in
1167
+ IES avoidance at 6 months (the time point associated with
1168
+ significant group differences), and the interaction on QOL
1169
+ outcome variables (physical and mental health–related
1170
+ QOL (SF-36 PCS and MCS), depressive symptoms (CES-
1171
+ D), and sleep disturbance (PSQI)) at the final follow-up
1172
+ time point (ie, 6 months). There were significant interaction
1173
+ effects for mental health–related QOL (P = .05) and depres-
1174
+ sive symptoms (P = .04). Pearson correlations within each
1175
+ group revealed no association between change in IES avoid-
1176
+ ance scores and 6-month mental health–related QOL or
1177
+ depressive symptoms for YG or ST, whereas a greater
1178
+ increase in IES avoidance scores was associated with worse
1179
+ 6-month mental health–related QOL (r = −0.31; P = .03)
1180
+ and higher depressive symptoms (r = 0.42; P < .01) for the
1181
+ WL group.
1182
+ Discussion
1183
+ The present study hypothesized that participating in a yoga
1184
+ intervention during radiotherapy would be particularly ben-
1185
+ eficial for women with high baseline depressive symptoms
1186
+ and sleep disturbances on posttreatment QOL compared
1187
+ with their counterparts participating in stretching or waitlist
1188
+ control groups. We also hypothesized that trauma responses
1189
+ (ie, change in posttraumatic stress symptoms and increased
1190
+ benefit finding) and better stress hormone regulation (ie,
1191
+ steeper cortisol slope) would mediate the effect of yoga on
1192
+ primary outcomes. Results partially supported each of the
1193
+ hypotheses.
1194
+ Consistent with previous research suggesting that cancer
1195
+ patients with higher distress derive greater benefit from
1196
+ psychosocial interventions,18,58-61 the yoga intervention pro-
1197
+ vided the greatest mental health–related benefits for women
1198
+ with elevated sleep disturbance and, to a lesser extent,
1199
+ depressive symptoms prior to the start of radiotherapy. This
1200
+ effect varied by time, with differences emerging especially
1201
+ 3 and 6 months after radiotherapy. Thus, yoga was espe-
1202
+ cially helpful for those women with disturbed sleep and
1203
+ depressive symptoms at the start of radiotherapy. In fact, the
1204
+ women in the yoga group who had sleep disturbances at
1205
+ study entry had mental health scores at 3 and 6 months after
1206
+ Figure 3.  Yoga indirectly affects physical health–related QOL (SF-36 PCS) at the 6-month follow-up via increased benefit finding
1207
+ (BFS) at 3 months. Values on each path are unstandardized path coefficients taken from bootstrapping analyses controlling for age,
1208
+ stage of disease, time since diagnosis, type of surgery, chemotherapy type, and baseline benefit finding (BFS), physical health–related
1209
+ QOL (SF-36 PCS), and the SF-36 general health subscale. The a1 and a2 paths correspond to the mean differences in 3-month BFS
1210
+ between YG relative to WL and ST relative to WL, respectively. Thus, YG resulted in 3-month BFS scores that were a1 = 5.55 units
1211
+ higher than WL (P = .04), and ST resulted in BFS that were a2 = 0.54 points higher than WL (P = .84). The b pathway corresponds to
1212
+ the relation between 3-month BFS and 6-month SF-36 PCS when group is held constant. Thus, for every 1 point increase in 3-month
1213
+ BFS, individuals reported an average b = 0.14-point increase in 6-month SF-36 PCS (P = .04). The relative indirect effects of group can
1214
+ be determined by multiplying the a and b paths. Thus, relative to WL, YG resulted in SF-36 PCS scores that were a1b = 0.77 units
1215
+ higher as a result of the positive effect of YG on BFS, which corresponds to a significant indirect effect of YG versus WL on 6-month
1216
+ SF-36 PCS via 3-month BFS (B = 0.77; SE = 0.58; 95% bias-corrected and accelerated [BCa] CI = 0.01 and 2.58). Conversely, there was
1217
+ no significant indirect effect of ST versus WL on 6-month SF-36 PCS via 3-month BFS (B = 0.07; SE = 0.43; BCa CI = −0.84 and 0.88).
1218
+ Abbreviations: QOL, quality of life; SF-36, 36-item Short Form; PCS, physical component scale; BFS, Benefit Finding Scale; YG, yoga
1219
+ group; ST, stretching control group; WL, or waitlist control group.
1220
+ *P < .05.
1221
+ at UNIV OF TX MD ANDERSON on April 11, 2016
1222
+ ict.sagepub.com
1223
+ Downloaded from
1224
+ 10
1225
+ Integrative Cancer Therapies 
1226
+ radiotherapy equivalent to those of women who did not
1227
+ have sleep disturbances at study entry. A similar pattern was
1228
+ seen for the benefits of yoga for those with high depressive
1229
+ symptoms at baseline.
1230
+ Regarding our mediation hypotheses, yoga led to
1231
+ increased benefit finding across the follow-up period rela-
1232
+ tive to the stretching and waitlist control groups, where
1233
+ there was consistent decrease over time. Importantly, we
1234
+ found that yoga indirectly affected physical health–related
1235
+ QOL assessed 6 months after radiotherapy via increased
1236
+ benefit finding reported 3 months after radiotherapy. In
1237
+ other words, part of the effect of yoga on physical health–
1238
+ related QOL at the long-term follow-up can be attributed to
1239
+ the increased benefit finding experienced by yoga partici-
1240
+ pants midway through the follow-up period. Of note, the
1241
+ longitudinal nature of the data enabled the time-lagged
1242
+ mediation analyses, which are critical for determining
1243
+ mechanisms of effect. This is a particular strength of the
1244
+ present article because such mediation analyses are often
1245
+ lacking in intervention study designs.
1246
+ Surprisingly, women in the waitlist group reported less
1247
+ avoidance behaviors (eg, “I tried not to think about it;” “I
1248
+ stayed away from reminders about it”) 6 months following
1249
+ radiotherapy compared with women in the yoga group, who
1250
+ reported little change in avoidance behaviors from baseline,
1251
+ and there was no evidence of a decrease in intrusive thoughts
1252
+ over time for any group. This finding was counter to our
1253
+ hypotheses and that of other studies, which have found
1254
+ mind-body practices in general, and yoga in particular, to be
1255
+ associated with reductions in avoidance-related coping.62,63
1256
+ However, exploratory analyses suggested that the typical
1257
+ deleterious effect of avoidance behaviors on QOL64,65 was
1258
+ not found for those in either of the active groups (yoga or
1259
+ stretching) but remained for those in the waitlist group. This
1260
+ finding was somewhat consistent with our previous pilot
1261
+ trial, in which the yoga group reported short-term increases
1262
+ in intrusive thoughts relative to the waitlist control group.10
1263
+ Furthermore, a meta-analysis by Helgeson et al66 found that
1264
+ increased intrusive or avoidant thoughts about a stressor
1265
+ were associated with increase in benefit finding, which was
1266
+ in turn associated with greater well-being. Thus, it could be
1267
+ that yoga may not reduce posttraumatic stress symptoms (ie,
1268
+ cognitive interference or avoidance) in the acute phase, but
1269
+ this in turn may facilitate improved long-term adjustment.
1270
+ There are several limitations to recognize in this study.
1271
+ The majority of participants were white, non-Hispanic,
1272
+ married, and highly educated. Thus, future research is
1273
+ needed to test the generalizability of these findings to more
1274
+ diverse populations. Participants also were not blinded to
1275
+ study condition, and no measure of treatment expectation
1276
+ was collected, which could have biased the findings because
1277
+ of the subjective nature of the outcomes. In addition,
1278
+ although these data suggest that women with elevated lev-
1279
+ els of depressive symptoms and sleep disturbances show a
1280
+ greater treatment response, these findings need to be inter-
1281
+ preted with caution because the patients were not selected
1282
+ based on pretreatment symptomatology. The study may
1283
+ have also been underpowered for the mediation analyses. In
1284
+ a study of empirical power simulations, Fritz and
1285
+ MacKinnon67 indicated that very large sample sizes are
1286
+ required for tests of mediation to be conducted with at least
1287
+ 80% power. Thus, the sample size of the present study
1288
+ likely limits our ability to determine mediators with full
1289
+ power, and the same limitation may be true for moderation
1290
+ analyses. Additionally, the reduced reliability of cortisol
1291
+ slopes assessed at later follow-up points (because of a
1292
+ smaller sample size) may have limited our power to detect
1293
+ the effects of cortisol slopes as a mediator in particular.
1294
+ Finally, we followed participants for only a 6-month period,
1295
+ so the long-term effectiveness of yoga in patients with
1296
+ breast cancer remains to be determined. To address these
1297
+ limitations, we are conducting an ongoing yoga trial using a
1298
+ quasi-double-blinded design, with patients not knowing the
1299
+ details of the intervention groups at baseline and then only
1300
+ knowing the specifics of their assigned group. Additionally,
1301
+ assessors are blind to group assignment. Treatment expecta-
1302
+ tions are also being measured, and patients complete a
1303
+ 1-year follow-up assessment.
1304
+ In conclusion, the current study provides a greater under-
1305
+ standing of who will benefit most from a yoga intervention
1306
+ and how a yoga intervention produces change. These results
1307
+ suggest that future studies of the effect of yoga on cancer
1308
+ patients may benefit from screening for participants who
1309
+ report poor sleep or depressive symptoms because yoga may
1310
+ buffer the negative effect of poor sleep or low mood on men-
1311
+ tal health–related QOL indices in the months following
1312
+ treatment for cancer. Additionally, these findings imply that
1313
+ yoga may improve physical health–related QOL by increas-
1314
+ ing one’s ability to find benefit in the cancer experience.
1315
+ Finally, yoga appears to increase women’s endorsement of
1316
+ symptoms typically associated with posttraumatic stress (ie,
1317
+ intrusive thoughts and/or avoidance behaviors) but disasso-
1318
+ ciates the typically harmful link between these symptoms
1319
+ and QOL. Based on these results, we recommend that future
1320
+ research continues to identify pretreatment psychosocial
1321
+ factors that predict intervention response, seeks mechanisms
1322
+ by which interventions work, and begins implementing tar-
1323
+ geted, tailored, evidence-based mind-body interventions to
1324
+ optimize recovery and QOL in patients affected by cancer.
1325
+ Authors’ Note
1326
+ Chelsea G. Ratcliff and Kathrin Milbury contributed equally to the
1327
+ article and are both considered first authors.
1328
+ Declaration of Conflicting Interests
1329
+ The author(s) declared no potential conflicts of interest with
1330
+ respect to the research, authorship, and/or publication of this
1331
+ article.
1332
+ at UNIV OF TX MD ANDERSON on April 11, 2016
1333
+ ict.sagepub.com
1334
+ Downloaded from
1335
+ Ratcliff et al
1336
+ 11
1337
+ Funding
1338
+ The author(s) disclosed receipt of the following financial support
1339
+ for the research, authorship, and/or publication of this article: This
1340
+ work was supported by the National Cancer Institute (Grant
1341
+ Numbers R21CA102385, R01CA138800, R25CA10618), the
1342
+ National Cancer Institute Cancer Center Support (Grant Number
1343
+ A016672), the National Center for Complementary and Integrative
1344
+ Health (Grant Number 5 K01 AT007559-02), a National Cancer
1345
+ Institute cancer prevention fellowship for Chelsea G. Ratcliff
1346
+ (Grant Number R25T CA057730), the South Central Mental
1347
+ Illness, Research, Education, and Clinical Center, and philan-
1348
+ thropic support.
1349
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1350
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+ Downloaded from
subfolder_0/Gas Discharge Visualization Characteristics of an Indian Diabetes Population.txt ADDED
@@ -0,0 +1,24 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ GAS DISCHARGE VISUALIZATION CHARACTERISTICS OF AN INDIAN DIABETES
2
+ POPULATION
3
+ Bhawna Sharma, Alex Hankey, and Hongasandra Ramarao Nagendra
4
+
5
+ Abstract
6
+ Instruments measuring subtle energy levels in human subjects are becoming increasingly
7
+ popular in complementary medicine. Gas Discharge Visualization is an instrument measuring
8
+ fingertip electron emission, variations in which correspond to changing health levels in
9
+ different organs and organ systems. Its characteristics in diabetes have not previously been
10
+ determined. The purpose of this study is to compare Gas Discharge Visualization parameters
11
+ of diabetes patients those of healthy individuals. ds: Data taken from 138 diabetes patients,
12
+ divided into three groups according to duration of patholgy, was compared with data from 84
13
+ healthy subjects. Three GDV subscales were analysed: GDV Screening, Diagram, and Right Left
14
+ Symmetry. Significant differences were observed between the two groups in the
15
+ cardiovascular, endocrine, immune and urogenital systems. Dividing the diabetes group
16
+ according pathology duration revealed systematic increases in values in all organs and organ
17
+ systems. Also, our Bangalore based subjects seemed to have different norms from those
18
+ originally used to calibrate the instrument. Differences between diabetic and healthy groups
19
+ increase with increasing duration of the disease. Population norms require further
20
+ investigation.
21
+ Keywords: gas discharge, visualization, characteristics of diabetes, population
22
+
23
+
24
+
subfolder_0/Health Perceptions and Adopted Lifestyle Behaviors During the COVID-19 Pandemic Cross-National Survey..txt ADDED
@@ -0,0 +1,1550 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Original Paper
2
+ Health Perceptions and Adopted Lifestyle Behaviors During the
3
+ COVID-19 Pandemic: Cross-National Survey
4
+ Nandi Krishnamurthy Manjunath1, PhD; Vijaya Majumdar1, PhD; Antonietta Rozzi2, MA; Wang Huiru3, PhD; Avinash
5
+ Mishra4, PhD; Keishin Kimura5; Raghuram Nagarathna1, MD; Hongasandra Ramarao Nagendra1, PhD
6
+ 1Swami Vivekananda Yoga Anusandhana Samsthana University, Bengaluru, India
7
+ 2Sarva Yoga International, Sarzana SP, Italy
8
+ 3Shanghai Jiao Tong University, Shanghai, China
9
+ 4Vivekananda Yoga China, Shanghai, China
10
+ 5Japan Yoga Therapy Society, Yonago City, Japan
11
+ Corresponding Author:
12
+ Vijaya Majumdar, PhD
13
+ Swami Vivekananda Yoga Anusandhana Samsthana University
14
+ #19, Eknath Bhavan, Gavipuram Circle
15
+ KG Naga
16
+ Bengaluru, 560019
17
+ India
18
+ Phone: 91 08026995163
19
20
+ Abstract
21
+ Background: Social isolation measures are requisites to control viral spread during the COVID-19 pandemic. However, if these
22
+ measures are implemented for a long period of time, they can result in adverse modification of people’s health perceptions and
23
+ lifestyle behaviors.
24
+ Objective: The aim of this cross-national survey was to address the lack of adequate real-time data on the public response to
25
+ changes in lifestyle behavior during the crisis of the COVID-19 pandemic.
26
+ Methods: A cross-national web-based survey was administered using Google Forms during the month of April 2020. The
27
+ settings were China, Japan, Italy, and India. There were two primary outcomes: (1) response to the health scale, defined as
28
+ perceived health status, a combined score of health-related survey items; and (2) adoption of healthy lifestyle choices, defined
29
+ as the engagement of the respondent in any two of three healthy lifestyle choices (healthy eating habits, engagement in physical
30
+ activity or exercise, and reduced substance use). Statistical associations were assessed with linear and logistic regression analyses.
31
+ Results: We received 3371 responses; 1342 were from India (39.8%), 983 from China (29.2%), 669 from Italy (19.8%), and
32
+ 377 (11.2%) from Japan. A differential countrywise response was observed toward perceived health status; the highest scores
33
+ were obtained for Indian respondents (9.43, SD 2.43), and the lowest were obtained for Japanese respondents (6.81, SD 3.44).
34
+ Similarly, countrywise differences in the magnitude of the influence of perceptions on health status were observed; perception
35
+ of interpersonal relationships was most pronounced in the comparatively old Italian and Japanese respondents (β=.68 and .60,
36
+ respectively), and the fear response was most pronounced in Chinese respondents (β=.71). Overall, 78.4% of the respondents
37
+ adopted at least two healthy lifestyle choices amid the COVID-19 pandemic. Unlike health status, the influence of perception of
38
+ interpersonal relationships on the adoption of lifestyle choices was not unanimous, and it was absent in the Italian respondents
39
+ (odds ratio 1.93, 95% CI 0.65-5.79). The influence of perceived health status was a significant predictor of lifestyle change across
40
+ all the countries, most prominently by approximately 6-fold in China and Italy.
41
+ Conclusions: The overall consistent positive influence of increased interpersonal relationships on health perceptions and adopted
42
+ lifestyle behaviors during the pandemic is the key real-time finding of the survey. Favorable behavioral changes should be bolstered
43
+ through regular virtual interpersonal interactions, particularly in countries with an overall middle-aged or older population. Further,
44
+ controlling the fear response of the public through counseling could also help improve health perceptions and lifestyle behavior.
45
+ However, the observed human behavior needs to be viewed within the purview of cultural disparities, self-perceptions, demographic
46
+ variances, and the influence of countrywise phase variations of the pandemic. The observations derived from a short lockdown
47
+ period are preliminary, and real insight could only be obtained from a longer follow-up.
48
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 1
49
+ https://formative.jmir.org/2021/6/e23630
50
+ (page number not for citation purposes)
51
+ Manjunath et al
52
+ JMIR FORMATIVE RESEARCH
53
+ XSL•FO
54
+ RenderX
55
+ (JMIR Form Res 2021;5(6):e23630) doi: 10.2196/23630
56
+ KEYWORDS
57
+ health behavior; self-report; cross-national survey; COVID-19; behavior; perception; lifestyle; nutrition; real-time
58
+ Introduction
59
+ The World Health Organization (WHO) declared the outbreak
60
+ of COVID-19 a pandemic on March 11, 2020 [1]. As of March
61
+ 24, 2020, the most affected regions in the world were the
62
+ Western Pacific region (China, the Republic of Korea, Japan,
63
+ etc), with a total of 96,580 reported confirmed cases, and the
64
+ European region (Italy, Spain, Germany, the United Kingdom,
65
+ etc), which accounted for a total of 195,511 positive cases [2].
66
+ There was a global panic due to the shifting of the COVID-19
67
+ epicenters from China to Europe, mainly Italy, which reported
68
+ the worst outcomes up to March 25, 2020 (69,176 reported cases
69
+ and the maximum number of COVID-19 deaths of 6820) [2].
70
+ Global disease outbreaks impact varied aspects of physical and
71
+ mental health, even suicidality [3-5]. As observed in the
72
+ infectious disease epidemic of severe acute respiratory syndrome
73
+ (SARS) in 2003, exposure to new pathogens can manifest as a
74
+ qualitatively distinct mental impact [6]. Social isolation
75
+ measures
76
+ (large-scale
77
+ quarantines,
78
+ long-term
79
+ home
80
+ confinements, and nationwide lockdowns) [7-11], although
81
+ essential for controlling viral spread, go against the inherent
82
+ human instinct of social relationships [12,13]. If these measures
83
+ are implemented for a long duration, they can be detrimental
84
+ to mental health, as observed in recent reports from China and
85
+ Vietnam [14-17], and they are expected to result in modification
86
+ of people’s lifestyle behaviors, such as increased adoption of
87
+ unhealthy dietary habits and sedentary behavior. These changes
88
+ can exacerbate the burden of the “pandemics” of behavioral and
89
+ cardiovascular diseases that already prevail in modern societies
90
+ [18,19]. The latest trends of re-emergences of such infectious
91
+ disease outbreaks merit timely preparedness involving
92
+ community engagement and focus on healthy lifestyle behaviors
93
+ [20,21]. Although the mental impact of the COVID-19 pandemic
94
+ is being addressed in a timely fashion [22,23], the associated
95
+ real-time influences on people’s health perceptions and lifestyle
96
+ choices remain underresearched [24,25]. Careful consideration
97
+ of the demographic and cultural impact of tailored public health
98
+ intervention strategies on human behavior is also greatly needed
99
+ when designing such strategies. Here, we report the findings of
100
+ a cross-national survey that aimed to generate rapid perspectives
101
+ on the status of health-related perceptions and their influence
102
+ on the likelihood of adoption of healthy lifestyle choices during
103
+ the COVID-19 pandemic. The settings were China and Japan,
104
+ two nations in the Western Pacific region that were greatly
105
+ impacted by COVID-19; Italy, from the European region; and
106
+ India, a highly populous South Asian country that was a
107
+ potential threat region at the time of the survey [2,7-9,11].
108
+ Methods
109
+ Sampling and Data Collection
110
+ Given the restricted mobility restrictions and confinement due
111
+ to
112
+ the
113
+ COVID-19
114
+ lockdown,
115
+ we
116
+ conducted
117
+ a
118
+ cross-sectional survey using a web-based platform. We
119
+ disseminated the survey through the circulation of a Google
120
+ Form via institutional websites and private social media
121
+ networks, such as Facebook and WhatsApp. We also used the
122
+ group email lists of a few social organizations, universities,
123
+ academic institutions, and their interconnections to share the
124
+ questionnaire links, which further facilitated the snowball
125
+ sampling. The respondents were residents of China, Japan, Italy,
126
+ and India who were aged 18 years or older. We anonymized
127
+ the data to preserve and protect confidentiality. The study was
128
+ approved by the institutional review boards and institutional
129
+ ethics committees of the respective nations: Swami Vivekananda
130
+ Yoga Anusandhana Samsthana (SVYASA), India; Sarva Yoga
131
+ International, Italy; Shanghai Jiao Tong University, China; and
132
+ Japan Yoga Therapy Society, Japan. Respondents were informed
133
+ about the objectives of the survey and the anonymity of their
134
+ responses. Informed consent was obtained through a declaration
135
+ of the participants of their voluntary participation, the
136
+ confidentiality of the data, and the use of the collected
137
+ information for research purposes only. The survey period was
138
+ April 3-28, 2020. Once submitted, the responses were directly
139
+ used for the analysis, and revisions of the responses were not
140
+ allowed.
141
+ Questionnaire Structure
142
+ We chose a short format for the questionnaire, with 19 questions
143
+ to facilitate rapid administration. The first set of questions
144
+ (Q1-Q5) were related to the respondents’ demographic details:
145
+ age, gender, country of residence, working status, and the
146
+ presence of any chronic illness or disability diagnosed by a
147
+ physician. The next set (Q6-Q14) contained perception-related
148
+ questions on self-rated physical and mental health, sleep quality,
149
+ coping ability, energy status (a psychological state defined as
150
+ an individual's potential to perform mental and physical activity
151
+ [26,27]), coping flexibility, and perceptions related to
152
+ interpersonal relationships as well as the fear of the pandemic.
153
+ The questions were phrased as statements, with responses
154
+ recorded on 3- or 5-point scales. For example, the respondents
155
+ were requested to self-rate their mental and physical health
156
+ status with the questions “How do you rate your physical health
157
+ at present as” and “How do rate your mental health at present
158
+ as” with answer modalities of (1) excellent, (2) very good, (3)
159
+ good, (4) average, and (5) poor. These single-item self-health
160
+ assessment questions are validated tools used in national surveys
161
+ and epidemiological studies to assess health perceptions among
162
+ individuals, strongly related to various morbidities, and
163
+ mortality, and they have been validated across various ethnicities
164
+ [28-33]. A further set of questions (Q15-Q19) focused on items
165
+ related to the respondents’ recent lifestyle behavior choices:
166
+ eating habits, engagement in physical activity or exercise, and
167
+ substance use. Permitted responses for these behavior-related
168
+ questions were either yes or no. For eating habits, the
169
+ respondents provided self-rated scores for their time of eating;
170
+ nourishment related to intake of vegetables and fibers; and daily
171
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 2
172
+ https://formative.jmir.org/2021/6/e23630
173
+ (page number not for citation purposes)
174
+ Manjunath et al
175
+ JMIR FORMATIVE RESEARCH
176
+ XSL•FO
177
+ RenderX
178
+ intake of “junk food” (described as packaged and processed
179
+ sweets or salty snacks); the combined scores were dichotomized
180
+ into “good” (score ≥3) and “poor” (score ≤2).
181
+ Data Analysis
182
+ An exploratory factor analysis using the principal axis factoring
183
+ and varimax rotation suggested that three factors were present
184
+ in the data. Items related to health perceptions were used to
185
+ form a scale for perceived health status (the health scale); the
186
+ scores were represented as mean (SD). For the remaining two
187
+ factors, we could not form scales, as they scored Cronbach α
188
+ values <.6; instead, we used the most relevant single item to
189
+ represent the factor. The two primary outcomes of the study
190
+ were the health scale and the adoption of healthy lifestyle
191
+ choices. The health scale was derived as mentioned above;
192
+ further health scale scores were categorized based on tertile
193
+ distribution into low (poor), middle (average), and high (good)
194
+ scores. Adoption of healthy lifestyle choices was defined as the
195
+ engagement of the respondent in any two of three healthy
196
+ lifestyle choices (eating habits, substance use, and exercise).
197
+ Multivariate linear and logistic regression analyses were used
198
+ to test the influence of the perceptions and the personal variables
199
+ on the primary outcomes. Most of the items in the survey were
200
+ recorded as 3-point responses. Hence, to achieve homogeneity
201
+ in the analyses of the survey items, the 5-point Likert responses
202
+ of the self-rated health items, excellent, very good, good,
203
+ average, and poor, were collapsed into three categories: (1) very
204
+ good/excellent, (2) good, and (3) average/poor. Analysis of
205
+ variance was used to assess comparisons between continuous
206
+ variables, and P<.05 was considered significant. Chi-square
207
+ analysis was used for cross-country comparisons for categorical
208
+ variables.
209
+ Results
210
+ The aim of this survey was to understand the cross-national
211
+ psychosocial and behavioral impact of the lockdowns and social
212
+ isolations imposed due to the COVID-19 pandemic. We received
213
+ 3370 responses: 1342 from India (39.8%), 983 from China
214
+ (29.2%), 669 from Italy (19.8%), and 377 from Japan (11.2%).
215
+ The demographic profiles of the respondents are presented in
216
+ Table 1.
217
+ Table 1. Countrywise representation of the personal characteristics of the survey participants.
218
+ P valuea
219
+ Italy (n=669)
220
+ Japan (n=377)
221
+ China (n=983)
222
+ India (n=1342)
223
+ Overall (N=3371)
224
+ Variable
225
+ <.001
226
+ 48.43 (13.65)
227
+ 53.49 (9.35)
228
+ 29.77 (11.98)
229
+ 29.42 (12.29)
230
+ 36.04 (15.54)
231
+ Age (years), mean (SD)
232
+ <.001
233
+ Age group (years), n (%)
234
+ 31 (4.7)
235
+ 1 (0.3)
236
+ 490 (49.8)
237
+ 685 (51.0)
238
+ 1200 (35.6)
239
+ 18-24
240
+ 84 (12.5)
241
+ 4 (1.1)
242
+ 152 (15.5)
243
+ 267 (19.9)
244
+ 503 (14.9)
245
+ 25-34
246
+ 309 (46.2)
247
+ 217 (57.5)
248
+ 314 (32.0)
249
+ 330 (24.6)
250
+ 1176 (34.9)
251
+ 35-54
252
+ 169 (25.2)
253
+ 98 (26.0)
254
+ 21 (2.1)
255
+ 40 (3.0)
256
+ 330 (9.8)
257
+ 55-64
258
+ 76 (11.4)
259
+ 57 (15.1)
260
+ 6 (0.6)
261
+ 20 (1.5)
262
+ 162 (4.8)
263
+ >65
264
+ <.001
265
+ 506 (75.6)
266
+ 348 (92.0)
267
+ 802 (81.6)
268
+ 880 (65.6)
269
+ 2535 (75.2)
270
+ Female gender, n (%)
271
+ <.001
272
+ 395 (59.0)
273
+ 335 (89.0)
274
+ 406 (41.3)
275
+ 582 (43.4)
276
+ 1709 (50.7)
277
+ Working, n (%)
278
+ <.001
279
+ 314 (46.9)
280
+ 151 (40.0)
281
+ 84 (8.5)
282
+ 169 (12.6)
283
+ 647 (19.2)
284
+ Has a chronic illness, n (%)
285
+ aCross-country comparisons for categorical variables were conducted using chi-square analysis. Analysis of variance was conducted to assess comparisons
286
+ among the continuous variable of age. A P value <.05 was considered significant.
287
+ The mean age of the respondents was 36.04 years (SD 15.54)
288
+ (Table 1); the average age of the Indian and Chinese respondents
289
+ (29.42 years, SD 12.29, and 29.77 years, SD 11.98, respectively)
290
+ was lower than that of the Japanese and Italian respondents
291
+ (53.49 years, SD 9.35, and 48.43 years, SD 3.65, respectively).
292
+ Overall, there was a higher representation of the female gender
293
+ (2535/3371, 75.2%). Japan had the highest representation of
294
+ women (348/377, 92.0%) and working people (335/377, 89.0%)
295
+ (Table 1). Italy and Japan had the highest representations of
296
+ respondents with a known status of chronic illness (314/669,
297
+ 46.9%, and 151/377, 40.0%, respectively).
298
+ Table 2 shows the countrywise status of the perceptions of health
299
+ and psychosocial factors reported in response to the ongoing
300
+ outbreak of COVID-19. The health status score was highest for
301
+ Indian respondents (9.43, SD 2.43) and lowest for Japanese
302
+ respondents (6.81, SD 3.44). Overall, 846/3371 (25.1%) of the
303
+ respondents had good health status; Japanese and Chinese
304
+ respondents had the highest representation of low health status
305
+ (236/377, 62.6%, and 562/983, 57.2%, respectively). Sleep
306
+ quality was perceived well by the majority of Indians (917/1342,
307
+ 68.3%), and the majority of Japanese and Chinese respondents
308
+ perceived their sleep quality as average/poor (264/377, 70%,
309
+ and 554/983, 56.3%, respectively). Italian respondents had
310
+ almost equal representations of good and average sleep qualities.
311
+ Coping abilities during social isolation were perceived as good
312
+ by 1264/3371 (37.5%) of the overall population, with the
313
+ countrywise trend of India (672/1342, 50.1%) > Italy (283/669,
314
+ 42.3%) > Japan (131/377, 34.8%) > China (178/983, 18.1%).
315
+ Fear response was almost equally distributed in positive or
316
+ intermediate categories for most of the country respondents,
317
+ except for Italians, among whom the intermediate or partial fear
318
+ response was the most evident (469/669, 70.1%). Coping
319
+ flexibility responses were very similar across all the countries
320
+ except Japan, wherein the majority of respondents (317/377,
321
+ 84.1%) reported experiencing little challenging response to
322
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 3
323
+ https://formative.jmir.org/2021/6/e23630
324
+ (page number not for citation purposes)
325
+ Manjunath et al
326
+ JMIR FORMATIVE RESEARCH
327
+ XSL•FO
328
+ RenderX
329
+ sudden changes in living norms. Responses to interpersonal
330
+ relationships followed the trend of India (733/1342, 54.6%) >
331
+ Japan (183/377, 48.5%) > Italy (287/669, 42.9%) > China
332
+ (337/983, 34.3%). Adopted lifestyle behavior yielded the trend
333
+ of India (1129/1342, 83.9%) > Italy (361/669, 54.0%) > China
334
+ (436/983, 44.4%) > Japan (137/377, 36.2%).
335
+ Based on the regression analysis on the perceived health status,
336
+ female respondents had a 0.14 lower score compared to male
337
+ respondents (Table 3). Participants with a positive history of
338
+ chronic illness and those who were not working also had lower
339
+ health status scores, by 0.11 and 0.04, respectively, compared
340
+ to their counterparts. Increased personal relationships and
341
+ positive fear response were associated with increases in health
342
+ status across all the countries, particularly Japan, which showed
343
+ the highest value of β (.60). For Indian respondents, an increase
344
+ in age was significantly associated with increase in health status
345
+ by a score of 0.12.
346
+ Increased interpersonal relationships was a significant predictor
347
+ of adoption of health lifestyle choices across the respondents
348
+ in all the countries except for Italy (adjusted OR 1.93, 95% CI
349
+ 0.65-5.79) (Table 4). Positive perception of fear was
350
+ significantly associated with likelihood of adoption of healthy
351
+ lifestyle choices only in Indian respondents (adjusted OR 2.41,
352
+ 95% CI 1.18-4.96). Perceived health status categories were
353
+ significantly associated with the likelihood of adoption of
354
+ healthy lifestyle choices across all the countries; most
355
+ prominently, high health status increased adoption of healthy
356
+ lifestyle choices by approximately 6-fold in China and Italy.
357
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 4
358
+ https://formative.jmir.org/2021/6/e23630
359
+ (page number not for citation purposes)
360
+ Manjunath et al
361
+ JMIR FORMATIVE RESEARCH
362
+ XSL•FO
363
+ RenderX
364
+ Table 2. Countrywise representation of perceptions and behavioral changes among the survey respondents related to the COVID-19 outbreak.
365
+ P valuea
366
+ Italy (n=669)
367
+ Japan (n=377)
368
+ China (n=983)
369
+ India (n=1342)
370
+ Overall
371
+ (N=3371)
372
+ Perception or behavior and response
373
+ First factorb
374
+ .01
375
+ 8.43 (2.56)
376
+ 6.81 (3.44)
377
+ 7.09 ( 2.92)
378
+ 9.43 (2.43)
379
+ 8.26 (3.36)
380
+ Health status, mean (SD)
381
+ 150 (22.4)
382
+ 69 (18.3)
383
+ 71 (7.2)
384
+ 556 (41.4)
385
+ 846 (25.1)
386
+ High, n (%)
387
+ Medium, n (%)
388
+ 225 (33.6)
389
+ 72 (19.1)
390
+ 350 (35.6)
391
+ 413 (30.8)
392
+ 1062 (31.5)
393
+ 294 (43.9)
394
+ 236 (62.6)
395
+ 562 (57.2)
396
+ 413 (30.8)
397
+ 1463 (43.4)
398
+ Low, n (%)
399
+ <.001
400
+ Self-rated physical health, n (%)
401
+ 173 (25.9)
402
+ 88 (23.3)
403
+ 467 (47.5)
404
+ 629 (46.9)
405
+ 1357 (40.2)
406
+ Excellent/very good
407
+ 375 (56.0)
408
+ 135 (35.8)
409
+ 200 (20.3)
410
+ 573 (42.7)
411
+ 1283 (38.1)
412
+ Good
413
+ 121 (18.1)
414
+ 154 (40.8)
415
+ 316 (32.1)
416
+ 140 (10.4)
417
+ 731 (21.7)
418
+ Poor/average
419
+ <.001
420
+ Self-rated mental health, n (%)
421
+ 206 (30.8)
422
+ 93 (24.7)
423
+ 0 (0)
424
+ 645 (48.1)
425
+ 944 (28.0)
426
+ Excellent/very good
427
+ 371 (55.4)
428
+ 122 (32.4)
429
+ 642 (65.3)
430
+ 535 (39.9)
431
+ 1670
432
+ (49.5)
433
+ Good
434
+ 92 (13.8)
435
+ 162 (43.0)
436
+ 341 (34.7)
437
+ 162 (12.1)
438
+ 757 (22.5)
439
+ Poor/average
440
+ <.001
441
+ Self-rated sleep quality, n (%)
442
+ 328 (49.0)
443
+ 113 (29.9)
444
+ 429 (43.6)
445
+ 917 (68.3)
446
+ 1787 (53.0)
447
+ Good
448
+ 240 (35.9)
449
+ 234 (62.1)
450
+ 477 (48.5)
451
+ 354 (26.4)
452
+ 1305
453
+ (38.7)
454
+ Average
455
+ 101 (15.1)
456
+ 30 (8.0)
457
+ 77 (7.8)
458
+ 71 (5.3)
459
+ 279
460
+ (8.3)
461
+ Poor
462
+ <.001
463
+ Self-rated coping abilities, n (%)
464
+ 283 (42.3)
465
+ 131 (34.8)
466
+ 178 (18.1)
467
+ 672 (50.1)
468
+ 1264 (37.5)
469
+ Good
470
+ 298 (44.5)
471
+ 139 (36.8)
472
+ 516 (52.5)
473
+ 539 (40.1)
474
+ 1492 (44.3)
475
+ Average
476
+ 88 (13.2)
477
+ 107 (28.5)
478
+ 289 (29.4)
479
+ 131 (9.8)
480
+ 615 (18.2)
481
+ Poor
482
+ Second factor , n (%)
483
+ <.001
484
+ Fear/anxiety related to COVID-19c
485
+ 125 (18.7)
486
+ 157 (41.6)
487
+ 470 (47.8)
488
+ 628 (46.8)
489
+ 1380 (40.9)
490
+ Not at all (positive)
491
+ 469 (70.1)
492
+ 213 (56.5)
493
+ 485 (49.3)
494
+ 662 (49.3)
495
+ 1829 (54.3)
496
+ Partially (intermediate)
497
+ 75 (11.2)
498
+ 7 (1.9)
499
+ 28 (2.8)
500
+ 52 (3.9)
501
+ 162 (4.8)
502
+ Extremely (negative)
503
+ <.001
504
+ Self-perception of low energy
505
+ 261 (39.0)
506
+ 239 (63.4)
507
+ 282 (28.7)
508
+ 667 (49.7)
509
+ 1449 (43.0)
510
+ Never
511
+ 390 (58.3)
512
+ 132 (35.0)
513
+ 672 (68.4)
514
+ 641 (47.8)
515
+ 1835 (54.5)
516
+ Sometimes
517
+ 18 (2.7)
518
+ 6 (1.6)
519
+ 29 (3.0)
520
+ 34 (2.5)
521
+ 87 (2.6)
522
+ All the time
523
+ <.001
524
+ Challenging response to sudden changes in living norms (coping flexibility)
525
+ 144 (21.5)
526
+ 44 (11.7)
527
+ 221 (22.5)
528
+ 436 (32.5)
529
+ 845 (25.1)
530
+ Least/not at all/little
531
+ 309 (46.2)
532
+ 317 (84.1)
533
+ 411 (41.8)
534
+ 417 (31.1)
535
+ 1454 (43.1)
536
+ Little
537
+ 216 (32.3)
538
+ 16 (4.2)
539
+ 351 (35.7)
540
+ 489 (36.4)
541
+ 1072 (31.8)
542
+ Extremely/somewhat
543
+ Third factor, n (%)
544
+ <.001
545
+ Interpersonal relationshipsc
546
+ 287 (42.9)
547
+ 183 (48.5)
548
+ 337 (34.3)
549
+ 733 (54.6)
550
+ 1540 (45.7)
551
+ Increased
552
+ 310 (46.3)
553
+ 179 (47.5)
554
+ 550 (56.0)
555
+ 533 (39.7)
556
+ 1572 (46.6)
557
+ Not changed
558
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 5
559
+ https://formative.jmir.org/2021/6/e23630
560
+ (page number not for citation purposes)
561
+ Manjunath et al
562
+ JMIR FORMATIVE RESEARCH
563
+ XSL•FO
564
+ RenderX
565
+ P valuea
566
+ Italy (n=669)
567
+ Japan (n=377)
568
+ China (n=983)
569
+ India (n=1342)
570
+ Overall
571
+ (N=3371)
572
+ Perception or behavior and response
573
+ 72 (10.8)
574
+ 15 (4.0)
575
+ 96 (9.8)
576
+ 76 (5.7)
577
+ 259 (7.7)
578
+ Reduced
579
+ <.001
580
+ Motivating influence of COVID-19 on lifestyle
581
+ 221 (33.0)
582
+ 132 (35.0)
583
+ 217 (22.1)
584
+ 605 (45.1)
585
+ 1175 (34.8)
586
+ Completely
587
+ 360 (53.8)
588
+ 223 (59.2)
589
+ 695 (70.7)
590
+ 641 (47.8)
591
+ 1919 (57.0)
592
+ Partially
593
+ 88 (13.2)
594
+ 22 (5.8)
595
+ 71 (7.2)
596
+ 96 (7.1)
597
+ 277 (8.2)
598
+ Not at all
599
+ <.001
600
+ 485 (72.5)
601
+ 283 (75.1)
602
+ 750 (76.3)
603
+ 1126 (83.9)
604
+ 2643 (78.4)
605
+ Adoption of ≥2 healthy lifestyle choices
606
+ <.001
607
+ 361 (54.0)
608
+ 137 (36.3)
609
+ 436 (44.4)
610
+ 867 (64.6)
611
+ 1801 (53.4)
612
+ Adoption of healthy eating behavior
613
+ <.001
614
+ 623 (93.1)
615
+ 355 (94.1)
616
+ 918 (93.4)
617
+ 1277 (95.2)
618
+ 3173 (94.1)
619
+ Decreased dependency on and use
620
+ of tobacco, alcohol, or any other
621
+ substances
622
+ <.001
623
+ 426 (63.7)
624
+ 272 (72.1)
625
+ 672 (68.4)
626
+ 910 (67.8)
627
+ 2280 (67.6)
628
+ Increased engagement in exercise
629
+ or similar activities
630
+ aCross-country comparisons for categorical variables were conducted using chi-square analysis; all the P values were significant.
631
+ bAn exploratory factor analysis using principal axis factoring and varimax rotation suggested that there were 3 factors present in the data. The first
632
+ factor consisted of health-related perceptions; composite scores for perceived health were generated as summative scores of the included items.
633
+ cFor the remaining 2 factors, scales could not be formed; rather, the single items that were thought to best summarize the respective factors were
634
+ considered for further association analyses.
635
+ Table 3. Multivariate linear regression analysis (β coefficients, standard errors, and t and P values) of the association between health status, personal
636
+ variables, and perceptions.
637
+ Italy
638
+ Japan
639
+ China
640
+ India
641
+ Overall
642
+ Predic-
643
+ tors
644
+ P
645
+ t
646
+ SE
647
+ β
648
+ P
649
+ t
650
+ SE
651
+ β
652
+ P
653
+ t
654
+ SE
655
+ β
656
+ P
657
+ t
658
+ SE
659
+ β
660
+ P
661
+ t
662
+ SE
663
+ β
664
+ Demographic variables
665
+ .51
666
+ –0.66
667
+ 0.02
668
+ –.07
669
+ 0.12
670
+ 1.55
671
+ 0.02
672
+ .08
673
+ .07
674
+ 1.79
675
+ 0.01
676
+ .07
677
+ <.001
678
+ 3.74
679
+ 0.01
680
+ .12
681
+ <.001
682
+ 5.12
683
+ 0.01
684
+ .14
685
+ Age
686
+ Gender (reference: male)
687
+ .97
688
+ –0.03
689
+ 0.52
690
+ <.001
691
+ 0.77
692
+ –0.30
693
+ 0.64
694
+ .01
695
+ .72
696
+ –0.35
697
+ 0.23
698
+ –.01
699
+ <.001
700
+ –3.24
701
+ 0.14
702
+ –.09
703
+ <.001
704
+ –7.51
705
+ 0.12
706
+ –.14
707
+ Fe-
708
+ male
709
+ Working status (reference: working)
710
+ .72
711
+ –0.36
712
+ 0.55
713
+ –.03
714
+ 0.48
715
+ –0.71
716
+ 0.56
717
+ –.04
718
+ .59
719
+ –0.54
720
+ 0.23
721
+ –.02
722
+ .75
723
+ –0.32
724
+ 0.15
725
+ –.01
726
+ .04
727
+ –2.04
728
+ 0.13
729
+ –.04
730
+ Not
731
+ work-
732
+ ing
733
+ Chronic illness (reference: no)
734
+ .34
735
+ –0.96
736
+ 0.47
737
+ –.09
738
+ 0.01
739
+ –2.81
740
+ 0.35
741
+ –.14
742
+ .04
743
+ –2.04
744
+ 0.31
745
+ –.06
746
+ <.001
747
+ –6.12
748
+ 0.20
749
+ –.16
750
+ <.001
751
+ –5.63
752
+ 0.15
753
+ –.11
754
+ Yes
755
+ Perceptions
756
+ Interpersonal relationships (reference: decreased)
757
+ .03
758
+ 2.17
759
+ 0.68
760
+ .27
761
+ <.001
762
+ 4.86
763
+ 0.85
764
+ .60
765
+ <.001
766
+ 4.12
767
+ 0.31
768
+ .21
769
+ <.001
770
+ 6.48
771
+ 0.28
772
+ .38
773
+ <.001
774
+ 10.76
775
+ 0.21
776
+ .37
777
+ In-
778
+ creased
779
+ .12
780
+ 1.56
781
+ 0.66
782
+ 019
783
+ 0.01
784
+ 2.66
785
+ 0.84
786
+ .33
787
+ .28
788
+ 1.08
789
+ 0.29
790
+ .05
791
+ <.001
792
+ 3.71
793
+ 0.29
794
+ .21
795
+ <.001
796
+ 4.15
797
+ 0.21
798
+ .14
799
+ No
800
+ change
801
+ Fear response (reference: poor)
802
+ <.001
803
+ 3.03
804
+ 1.02
805
+ .50
806
+ 0.01
807
+ 2.72
808
+ 1.38
809
+ .54
810
+ <.001
811
+ 8.02
812
+ 0.52
813
+ .71
814
+ <.001
815
+ 8.69
816
+ 0.33
817
+ .59
818
+ <.001
819
+ 10.84
820
+ 0.30
821
+ .54
822
+ Posi-
823
+ tive
824
+ .08
825
+ 1.77
826
+ 0.97
827
+ .30
828
+ 0.20
829
+ 1.30
830
+ 1.37
831
+ .26
832
+ <.001
833
+ 4.35
834
+ 0.51
835
+ .38
836
+ <.001
837
+ 5.22
838
+ 0.33
839
+ .35
840
+ <.001
841
+ 5.82
842
+ 0.30
843
+ .29
844
+ Fair
845
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 6
846
+ https://formative.jmir.org/2021/6/e23630
847
+ (page number not for citation purposes)
848
+ Manjunath et al
849
+ JMIR FORMATIVE RESEARCH
850
+ XSL•FO
851
+ RenderX
852
+ Table 4. Role of perceptions in the adoption of healthy lifestyle choices.
853
+ Italy
854
+ Japan
855
+ China
856
+ India
857
+ Overall
858
+ Perception
859
+ Adjusted OR
860
+ (95% CI)
861
+ OR
862
+ (95% CI)
863
+ Adjusted OR
864
+ (95% CI)
865
+ OR
866
+ (95% CI)
867
+ Adjusted OR
868
+ (95% CI)
869
+ OR
870
+ (95% CI)
871
+ Adjusted OR
872
+ (95% CI)
873
+ OR
874
+ (95% CI)
875
+ AdjustedbOR
876
+ (95% CI)
877
+ ORa
878
+ (95% CI)
879
+ Health status (reference: low)
880
+ 6.22
881
+ (1.90- 20.40)
882
+ 3.33
883
+ (2.01-
884
+ 5.51)
885
+ 2.83
886
+ (1.18-6.77)
887
+ 3.64
888
+ (1.59-
889
+ 8.37)
890
+ 5.83
891
+ (2.30-4.79)
892
+ 6.02
893
+ (2.38-
894
+ 15.20)
895
+ 2.62
896
+ (1.75-3.92)
897
+ 2.98
898
+ (2.07-
899
+ 4.28)
900
+ 3.42
901
+ (2.51-4.64)
902
+ 3.67
903
+ (2.87-
904
+ 4.68)
905
+ High
906
+ 2.46
907
+ (1.03-5.83)
908
+ 2.10
909
+ (1.42-
910
+ 3.12)
911
+ 1.06
912
+ (0.54-2.08)
913
+ 1.33
914
+ (0.72-
915
+ 2.45)
916
+ 2.43
917
+ (1.72-3.45)
918
+ 2.61
919
+ (1.85-
920
+ 3.69)
921
+ 1.57
922
+ (1.07-2.31)
923
+ 1.76
924
+ (1.24-
925
+ 2.50)
926
+ 2.00
927
+ (1.59-2.50)
928
+ 2.09
929
+ (1.72-
930
+ 2.54)
931
+ Medium
932
+ Interpersonal relationshipsc (reference: decreased)
933
+ 1.93
934
+ (0.65-5.79)
935
+ 1.86
936
+ (1.07-
937
+ 3.22)
938
+ 5.25
939
+ (1.46-8.92)
940
+ 4.43
941
+ (1.49-
942
+ 13.15)
943
+ 1.77
944
+ (1.03-3.05)
945
+ 2.01
946
+ (1.18-
947
+ 3.41)
948
+ 2.16
949
+ (1.15-4.08)
950
+ 1.86
951
+ (1.03-
952
+ 3.37)
953
+ 2.42
954
+ (1.70-3.45)
955
+ 2.21
956
+ (1.64-
957
+ 2.98)
958
+ In-
959
+ creased
960
+ 1.40
961
+ (0.50-3.96)
962
+ 1.59
963
+ (0.93-
964
+ 2.73)
965
+ 1.88
966
+ (0.54-6.52)
967
+ 1.87
968
+ (0.65-
969
+ 5.42)
970
+ 0.99
971
+ (0.61-1.62)
972
+ 1.03
973
+ (0.64-
974
+ 1.68)
975
+ 1.18
976
+ (0.63-2.21)
977
+ 1.09
978
+ (0.60-
979
+ 1.97)
980
+ 1.18
981
+ (0.84-1.66)
982
+ 1.25
983
+ (0.94-1.7)
984
+ Not
985
+ changed
986
+ Fear responsec (reference: poor)
987
+ 2.20
988
+ (0.41-11.71)
989
+ 1.62
990
+ (0.86-
991
+ 3.04)
992
+ 4.85
993
+ (0.73-32.19)
994
+ 1.84
995
+ (0.34-
996
+ 9.99)
997
+ 2.18
998
+ (0.96-4.94)
999
+ 2.38
1000
+ (1.06-
1001
+ 5.33)
1002
+ 2.41
1003
+ (1.18-4.96)
1004
+ 2.72
1005
+ (1.38-
1006
+ 5.36)
1007
+ 2.50
1008
+ (1.54-4.05)
1009
+ 2.43
1010
+ (1.69-
1011
+ 3.50)
1012
+ Positive
1013
+ 1.25
1014
+ (0.27-5.80)
1015
+ 1.34
1016
+ (0.80-
1017
+ 2.27)
1018
+ 1.97
1019
+ (0.31-12.55)
1020
+ 0.93
1021
+ (0.18-
1022
+ 4.93)
1023
+ 1.32
1024
+ (0.59-2.96)
1025
+ 1.46
1026
+ (0.66-
1027
+ 3.23)
1028
+ 1.32
1029
+ (0.65-2.65)
1030
+ 1.37
1031
+ (0.71-
1032
+ 2.65)
1033
+ 1.33
1034
+ (0.83-2.14)
1035
+ 1.36
1036
+ (0.95-
1037
+ 1.93)
1038
+ Fair
1039
+ aOR: odds ratio.
1040
+ bAdjusted for sex, age, work status, and history of chronic illness.
1041
+ cFactor represented by a single item that was thought to best represent the underlying notion.
1042
+ Discussion
1043
+ The aims of this short cross-national behavioral survey study
1044
+ were to generate rapid ideas regarding perspectives on health
1045
+ and lifestyle behavior and to provide initial insights into
1046
+ designing global but culturally tailored public health policies.
1047
+ Health Perceptions: Countrywise Status
1048
+ A differential countrywise response was observed toward
1049
+ perceived health status across the survey participants; Indians
1050
+ had a better representation of high health status (41.4%)
1051
+ compared to respondents from other countries (China, 7.2%,
1052
+ Japan, 18.2%, and Italy, 22.5%). Despite the inconsistencies in
1053
+ health perceptions, there was a consistent influence of social
1054
+ support measured by perceptions of interpersonal relationships
1055
+ and fear of perceived health status. However, there were
1056
+ countrywise differences in the magnitude of the impact of
1057
+ perceptions on health status; perception of interpersonal
1058
+ relationships was most pronounced in the comparatively older
1059
+ Italian and Japanese respondents (β=.68 and .60, respectively)
1060
+ and that of fear in the Chinese respondents (β=.71). These
1061
+ findings favor the implementation of regularized virtual
1062
+ interpersonal interactions toward combating the adverse health
1063
+ impact of the pandemic, particularly in countries with a higher
1064
+ proportion of older people [34]. Controlling the fear response
1065
+ through counseling would also aid the improvement of health
1066
+ outcomes in populations affected by pandemics. The findings
1067
+ of this survey related to the influence of gender on health
1068
+ perceptions (the health status score of female respondents was
1069
+ lower by 0.14 units compared to that of male respondents) are
1070
+ in line with the global trend of poorer health perception in
1071
+ women than in their male counterparts [35]. These real-time
1072
+ findings observed during the pandemic also relate with reports
1073
+ documented before the COVID-19 pandemic, with a generally
1074
+ higher prevalence of adverse mental health symptoms in women
1075
+ compared to men [36]. Overall, there seemed to be a differential
1076
+ influence of demographic variables on health perceptions across
1077
+ the global population during the pandemic.
1078
+ The comparatively high scores of the perceived health status in
1079
+ Indian respondents could be underlined by an early phase of
1080
+ the pandemic with slower progression in India during the survey
1081
+ period [11]. The younger age of the Indian respondents (mean
1082
+ age 29.42 years, SD 12.29) seemed to further facilitate
1083
+ interpersonal relationships (54.6%) during the lockdown, which
1084
+ also explains their better health status (β=.38) [34,37]. Younger
1085
+ age identity has been associated with well-being and better
1086
+ perceptions of health [38]. However, in this survey, an
1087
+ unexpectedly positive linear relationship was observed between
1088
+ increasing age and better perception of health status (β=.12) in
1089
+ young Indian respondents. This finding can be attributed to the
1090
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 7
1091
+ https://formative.jmir.org/2021/6/e23630
1092
+ (page number not for citation purposes)
1093
+ Manjunath et al
1094
+ JMIR FORMATIVE RESEARCH
1095
+ XSL•FO
1096
+ RenderX
1097
+ compounding effect of the COVID-19 pandemic on already
1098
+ existing emotional distress among young adults (related to their
1099
+ examinations, uncertainties, social relationships, etc) [39].
1100
+ Unfortunately, in line with previous reports [14,15], we could
1101
+ also observe a continued/posttraumatic impact of the pandemic
1102
+ in Chinese respondents, reflected in their comparatively low
1103
+ perception of health status (poor health status was reported by
1104
+ 57.2% of these respondents). We believe the poor health
1105
+ perceptions in the Chinese respondents is due to the underlying
1106
+ influence of fear perceptions (β=.71). Further, since the country
1107
+ had successfully emerged from the first wave of the pandemic
1108
+ during the survey, and social norms had also almost returned
1109
+ to normal, with fewer imposed lockdowns, the moderate increase
1110
+ in interpersonal relationships (34.3%) may not be sufficient to
1111
+ facilitate health status.
1112
+ The observed low status of perceived health in the Japanese
1113
+ respondents (low health status, 62.6%) is in accord with a health
1114
+ paradox in that country, which is a tendency to perceive health
1115
+ poorly despite the advanced economy [40,41]. Although this
1116
+ influence is not direct, an indirect influence of the comparatively
1117
+ old, middle-aged demographic profile of the Japanese
1118
+ respondents along with the mediatory impact of chronic diseases
1119
+ on health status (β=–.14) could also underlie the lower health
1120
+ perceptions of the Japanese respondents [42]. The perception
1121
+ of poor sleep quality in the Japanese respondents also needs
1122
+ attention, as this finding is in line with reports of the suicidal
1123
+ tendencies in this country [43].
1124
+ On a positive note, amid the aggravated pandemic at the time
1125
+ of the survey, the majority of the Italian respondents who were
1126
+ middle-aged perceived only partial fear of the pandemic (70.1%
1127
+ response), and they reported better health perceptions (health
1128
+ status score 8.43, SD 2.56) than Japanese respondents (health
1129
+ status score 6.81, SD 3.44) and Chinese respondents (health
1130
+ status score 7.09, SD 2.92). Approximately 55% of the responses
1131
+ for self-rated physical and mental health were in the
1132
+ moderate/fair tier, which is in accord with the reported tendency
1133
+ of Italian people toward intermediate categories of health
1134
+ perception [44]. The lack of negative influence of middle age
1135
+ and chronic illness on health perception can be attributed to the
1136
+ highly efficient medical care and adequate access to social
1137
+ support provided in Italy during the lockdown (improved
1138
+ interpersonal relationships were reported by 42.9% of Italian
1139
+ respondents).
1140
+ Role of Perceptions in the Adoption of Lifestyle
1141
+ Choices: Countrywise Comparisons
1142
+ Despite the imposed social isolation and home confinement and
1143
+ the prevailing fear during the COVID-19 pandemic, we observed
1144
+ a positive behavioral response toward lifestyle. Overall, 78.4%
1145
+ of the respondents adopted at least 2 healthy lifestyle choices
1146
+ during the COVID-19 pandemic. The majority of the
1147
+ respondents (67.6%) reported increased engagement in physical
1148
+ activity or exercise as opposed to the expected sedentary
1149
+ behavior due to home confinement. This favorable although
1150
+ unexpected outcome can be attributed to the timely release of
1151
+ the advisory recommendations made by various global and
1152
+ government agencies, including the WHO, on home-based or
1153
+ other easy‐to‐perform exercises under physical restrictions
1154
+ [45,46]. One of the crucial affirmative responses observed in
1155
+ this survey was the overwhelming response toward substance
1156
+ use (94.1%), which is more justifiable by lack of availability
1157
+ [47] than motivational influence. Along similar lines, in a recent
1158
+ survey on the immediate response to COVID-19, a 3% reduction
1159
+ in smoking was reported in Italians, which was attributed to the
1160
+ fear of increased risk of respiratory distress or mortality [48].
1161
+ To this end, we suggest the implementation of internet-based
1162
+ and cost-effective behavioral therapies, particularly cognitive
1163
+ behavioral therapy, which may aid the successful alleviation of
1164
+ maladaptive coping tendencies, thereby reducing the risk of
1165
+ future health catastrophes in the post–COVID-19 era [49,50].
1166
+ Social connectedness is an important dimension that controls
1167
+ population health and healthy lifestyle behavior [51]. In this
1168
+ cross-national survey, perception of increased social support
1169
+ and capital, manifested through enhanced interactions among
1170
+ close friends and family members (measured as interpersonal
1171
+ relationships in the survey), seemed to fill the void of missing
1172
+ social connectedness and encouraged the adoption of healthy
1173
+ lifestyle choices (adjusted OR 2.42, 95% CI 1.70-3.45). The
1174
+ substantial representation of the adoption of healthy lifestyle
1175
+ choices in Chinese and Japanese respondents (~75%),
1176
+ irrespective of their overall poor health perceptions, could be
1177
+ related to reverse causality. In the Japanese respondents (who
1178
+ had an older, middle-aged demographic profile), their working
1179
+ status (OR 4.37, 95% CI 1.19-16.02) (Table S1, Multimedia
1180
+ Appendix 1) and interpersonal relationships (OR for the
1181
+ adoption of healthy lifestyle choices 5.25, 95% CI 1.46-18.92)
1182
+ also seemed to contribute significantly to the adoption of healthy
1183
+ lifestyle behavior.
1184
+ The influence of interpersonal relationships on the adoption of
1185
+ healthy lifestyle choices was not consistent across different
1186
+ countries and was absent in the Italian respondents. However,
1187
+ this finding aligns with the previously reported relationship
1188
+ between a healthy lifestyle and self-perceived health in the
1189
+ European population [52]. Perception of good health was a
1190
+ prominent predictor of adoption of a healthy lifestyle (adjusted
1191
+ OR 6.22, 95% CI 1.90-20.40) in the middle-aged Italian
1192
+ respondents, with a 36.6% proportion of older individuals (>55
1193
+ years). Even intermediate scores of health perceptions (health
1194
+ status) also significantly predicted the likelihood of the adoption
1195
+ of healthy lifestyle choices (OR 2.43, 95% CI 1.72-3.45) in the
1196
+ Chinese respondents compared to the respondents from other
1197
+ countries, explained by their demographic characteristic of
1198
+ younger age. These countrywise differential cultural influences
1199
+ of perceptions on health and health behaviors during pandemics
1200
+ indicate that endorsement of the same, such as family support
1201
+ and togetherness, should consider existing disparities, especially
1202
+ for western countries [13].
1203
+ The findings of this report, particularly those regarding varied
1204
+ health perceptions and their differential influence on the
1205
+ likelihood of adopting healthy lifestyle choices, should be
1206
+ considered within the purview of the survey period with
1207
+ countrywise phase variations of the pandemic. Chinese
1208
+ respondents displayed the continued impact of the pandemic,
1209
+ as they had already witnessed one phase of the pandemic [2].
1210
+ Younger Indian respondents scored better for their health- and
1211
+ behavior-related perceptions due to the stable and early phase
1212
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 8
1213
+ https://formative.jmir.org/2021/6/e23630
1214
+ (page number not for citation purposes)
1215
+ Manjunath et al
1216
+ JMIR FORMATIVE RESEARCH
1217
+ XSL•FO
1218
+ RenderX
1219
+ of the pandemic (as of April 22, there was a comparatively
1220
+ steady expansion of COVID-19 cases in India compared to other
1221
+ countries, with 18,985 confirmed cases [11]). However, the
1222
+ responses of Japanese and Italian respondents related to their
1223
+ older age; these countries were also witnessing rising waves of
1224
+ COVID-19 at the time of the survey [7,53]. Japan was under
1225
+ an extended state of national emergency, as the number of
1226
+ “untraceable” cases was soaring [7]. Italy was also under an
1227
+ extended period of lockdown and was one of the hardest-hit
1228
+ nations, with an apparent mortality rate of approximately 13%
1229
+ [53,54].
1230
+ The observed predominantly female participation in the survey
1231
+ indicates a lack of stringent sampling but also highlights the
1232
+ active involvement of women, who are considered to be at high
1233
+ risk of socioeconomic vulnerability toward disease outbreaks
1234
+ such as the COVID-19 pandemic. The positive response for
1235
+ self-care in women is also a sign of improving gender equity
1236
+ toward health awareness. The observed overwhelmingly female
1237
+ participation level (75.2%) could not be ascribed to the gender
1238
+ representation of countries such as India and China [55] but
1239
+ could be ascribed to the high readiness of the female population
1240
+ to interactively use the internet, in particular to research
1241
+ health-related information and programs, as observed in recent
1242
+ reports [56-58].
1243
+ The study is limited by the lack of inclusion of perceptions of
1244
+ preventive behaviors and did not compare the respondents’
1245
+ views on precautionary measures, such as the use of face masks
1246
+ [59]. In a recent cross-country comparison between Polish and
1247
+ Chinese respondents, higher use of face masks in Chinese
1248
+ respondents (Polish respondents, 35.0%; Chinese respondents,
1249
+ 96.8%; P<.001) was found to be associated with better physical
1250
+ and mental impact of the COVID-19 pandemic [59]. Further,
1251
+ the observations of the adopted lifestyle choices presented here
1252
+ are derived from a short lockdown period during the COVID-19
1253
+ pandemic and are preliminary, influenced mostly by
1254
+ self-perception; demographic and cultural differences and
1255
+ realistic insight could only be obtained from a longer follow-up.
1256
+ Due to the self-reported nature of the observations, positive
1257
+ behavioral responses toward lifestyle are likely to be inflated.
1258
+ Good perceived health was associated with improved
1259
+ interpersonal relationships. Older respondents were least likely
1260
+ to report a positive relationship change, as observed in the
1261
+ responses of Italian and Japanese survey participants. However,
1262
+ there was a strong influence of improved interpersonal
1263
+ relationships on perceived health as well as adoption of healthy
1264
+ lifestyle choices in Japanese respondents. These findings
1265
+ indicate the potential of regularized virtual interpersonal
1266
+ interactions to attenuate the adverse psychosocial impact of
1267
+ such pandemics.
1268
+ In conclusion, the key finding of the survey is that the consistent
1269
+ positive influence of increased interpersonal relationships and
1270
+ good perceptions of health were found to have a significant
1271
+ influence on adopted lifestyle behaviors during the adverse time
1272
+ course of the COVID-19 pandemic. These favorable behavioral
1273
+ perceptions should be bolstered through enhanced health
1274
+ awareness, and regularized virtual interpersonal interactions,
1275
+ particularly in countries with an overall middle-aged or older
1276
+ population. Simultaneously, controlling the fear response
1277
+ through counseling would also help improve health outcomes
1278
+ in nations affected by pandemics. However, the observed human
1279
+ behavior has cultural influences, and it may not be globally
1280
+ generalizable.
1281
+ Data Availability Statement
1282
+ The data that support the findings of this study are available on
1283
+ request from the corresponding author.
1284
+ Acknowledgments
1285
+ The authors gratefully acknowledge the contributions of Dr Ravi Kulkarni and Dr Kousthubha for facilitating the data processing
1286
+ and providing technical support for preparing Google Forms, etc. There was no funding source for this study.
1287
+ Authors' Contributions
1288
+ MNK conceptualized the survey, performed the literature search, collected data from public sources, and contributed to the
1289
+ manuscript writing. VM wrote the manuscript and performed the literature search and statistical analyses. NR conceptualized the
1290
+ study and revised the manuscript. HR reviewed the manuscript. MNK and VM finalized the manuscript. The corresponding author
1291
+ had full access to all the data in the study and had final responsibility for the decision to submit for publication.
1292
+ Conflicts of Interest
1293
+ None declared.
1294
+ Multimedia Appendix 1
1295
+ Supplementary table.
1296
+ [DOCX File , 20 KB-Multimedia Appendix 1]
1297
+ References
1298
+ 1.
1299
+ Listings of WHO’s response to COVID-19. World Health Organization. URL: https://www.who.int/news-room/detail/
1300
+ 29-06-2020-covidtimeline [accessed 2021-05-10]
1301
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 9
1302
+ https://formative.jmir.org/2021/6/e23630
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+ (page number not for citation purposes)
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+ JMIR FORMATIVE RESEARCH
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+ RenderX
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+ 2.
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+ Srivastava N, Baxi P, Ratho R, Saxena S. Global trends in epidemiology of coronavirus disease 2019 (COVID-19). In:
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+ Saxena S, editor. Coronavirus Disease 2019 (COVID-19). Medical Virology: From Pathogenesis to Disease Control.
1311
+ Singapore: Springer; Apr 03, 2020.
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1525
+ Abbreviations
1526
+ SARS: severe acute respiratory syndrome
1527
+ SVYASA: Swami Vivekananda Yoga Anusandhana Samsthana
1528
+ WHO: World Health Organization
1529
+ Edited by G Eysenbach; submitted 18.08.20; peer-reviewed by P Mathur, R Ho, A Videira-Silva; comments to author 26.10.20; revised
1530
+ version received 03.12.20; accepted 11.04.21; published 01.06.21
1531
+ Please cite as:
1532
+ Manjunath NK, Majumdar V, Rozzi A, Huiru W, Mishra A, Kimura K, Nagarathna R, Nagendra HR
1533
+ Health Perceptions and Adopted Lifestyle Behaviors During the COVID-19 Pandemic: Cross-National Survey
1534
+ JMIR Form Res 2021;5(6):e23630
1535
+ URL: https://formative.jmir.org/2021/6/e23630
1536
+ doi: 10.2196/23630
1537
+ PMID: 33900928
1538
+ ©Nandi Krishnamurthy Manjunath, Vijaya Majumdar, Antonietta Rozzi, Wang Huiru, Avinash Mishra, Keishin Kimura, Raghuram
1539
+ Nagarathna, Hongasandra Ramarao Nagendra. Originally published in JMIR Formative Research (https://formative.jmir.org),
1540
+ 01.06.2021. This is an open-access article distributed under the terms of the Creative Commons Attribution License
1541
+ (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium,
1542
+ provided the original work, first published in JMIR Formative Research, is properly cited. The complete bibliographic information,
1543
+ a link to the original publication on https://formative.jmir.org, as well as this copyright and license information must be included.
1544
+ JMIR Form Res 2021 | vol. 5 | iss. 6 | e23630 | p. 12
1545
+ https://formative.jmir.org/2021/6/e23630
1546
+ (page number not for citation purposes)
1547
+ Manjunath et al
1548
+ JMIR FORMATIVE RESEARCH
1549
+ XSL•FO
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+ RenderX
subfolder_0/Holistic Approach for Prevention of Heart Disease and Diabetes.txt ADDED
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1
+ Holistic Approach for Prevention of Heart Disease and Diabetes
2
+
3
+ Gundu H. R. Rao1, and H. R. Nagendra2.
4
+ Emeritus Professor1, Laboratory Medicine and Pathology, University of Minnesota,
5
+ Rajiv Gandhi University of Health Sciences. Vice Chancellor2, Chairman, Swami
6
+ Vivekananda Yoga Anusandhana Samsthana, Bangalore.
7
+
8
+
9
+ Abstract
10
+
11
+ South Asians have a very high incidence of hypertension, metabolic syndrome,
12
+ Coronary Artery Disease (CAD) and Type-2 Diabetes (T2D). Currently, there are
13
+ approximately 60 million diabetics in India. According to a World Health
14
+ Organization (WHO) estimate, T2D will increase by 200% in India, in the next two
15
+ decades. Once this disorder is diagnosed, there is no better alternative than, to
16
+ effectively mange the risk factors. Those recognized with this disorder, will have to
17
+ take medication life long. This puts a tremendous economic burden, as well as great
18
+ burden on the liver. Therefore, it is essential to develop early diagnosis and better
19
+ management, of these metabolic disorders. Many studies done in the west, have
20
+ demonstrated that life style management is as effective, as medical management for
21
+ this disease. In view of these findings, in South Asian Countries, greater emphasis
22
+ should be given to the holistic management of those who are “at risk”, for
23
+ developing hypertension, obesity, metabolic syndrome, heart disease and type-2
24
+ diabetes. Life style management should include; smoking cessation, Yoga, exercise
25
+ and change in the diet. Preliminary studies done at Isha foundation, Coimbatore
26
+ and Swami Vievekananda Yoga Anusandhana Samsthana, Bangalore, suggest Yoga,
27
+ sathwik diet or a well balanced diet, effectively reduces the diabetes burden.
28
+ However, these studies have to be confirmed by appropriately designed randomized
29
+ clinical trials. There is a great need to develop alternative therapies, to reduce the
30
+ use of large doses of modern medicine. We have initiated a survey, to find out, as to
31
+ what other traditional therapies (Unani/Siddha) have been found to be beneficial, in
32
+ the effective management of these diseases. Results of these surveys and validation
33
+ of those therapies, that are found to be effective including yoga, diet etc., will
34
+ provide us with holistic, alternate or complementary therapies for the management
35
+ of heart disease and T2D.
36
+
37
+ Introduction
38
+
39
+ According to practitioners of Traditional Medicine, Modern Medicine as we know today,
40
+ has failed to prevent chronic non-communicable diseases such as hypertension, obesity,
41
+ metabolic syndrome, type-2 diabetes, heart disease and stroke On the other hand,
42
+ complementary and alternative medicine (CAM), practitioners claim, that their approach
43
+ to the management of these diseases are superior to modern medicine, as their approach
44
+ to therapy is holistic. Irrespective of who is right or wrong, we have to come with an
45
+ integrated, comprehensive management of these diseases. Recent studies in the third
46
+ world countries show, that these diseases are increasing rapidly to epidemic proportions.
47
+ China for example, has over 90 million diabetics, whereas in India there are
48
+ approximately 60 million and the incidence of this disease is rising rapidly. Furthermore,
49
+ in these countries, there is probably equal number of individuals with pre-diabetic state.
50
+ More than 36 million people die each year from Non Communicable Diseases (NCDs),
51
+ this constitutes 63 per cent of global deaths, including nine million, who die before the
52
+ age of 60. More than 90 per cent of these early deaths are in developing countries and
53
+ most could be prevented. Heart disease causes the most NCD deaths (17 million per
54
+ year). Need of the hour therefore, is to come up with some novel ideas, to combat these
55
+ metabolic diseases with accessible, acceptable and affordable therapeutic management
56
+ strategies.
57
+ Role of South Asian Society on Atherosclerosis and Thrombosis
58
+
59
+ South Asians (Indians, Pakistanis, Bangladeshis and Sri Lankans) have the highest
60
+ incidence of hypertension, metabolic syndrome, type-2 diabetes and coronary artery
61
+ disease, compared to any other ethnic group in the world (1, 2). In addition, according to
62
+ WHO, India ranks number one in the list of countries, with highest incidence of type-2
63
+ diabetes (3). To create awareness, develop educational and preventive programs, we
64
+ started a society (South Asian Society on Atherosclerosis and Thrombosis:
65
+ www.sasat.org) in 1993. SASAT is not only organizing conferences in India, publishing
66
+ books on these subjects in India, but also working proactively in developing prevention
67
+ strategies. SASAT is affiliated with the North American Thrombosis Forum (USA) and
68
+ the International Union of Angiology (IUA). Now it is extending an invitation for the
69
+ American College of Cardiology ACC) to work with us in India, on creating awareness
70
+ about NCDs, developing early diagnosis of risks for NCDs, education, research and
71
+ prevention projects. According to our vision and mission, all acute vascular events are
72
+ preventable. Early detection of the risks that promote these complex diseases and better
73
+ management of the NCD risks with the traditional therapies including holistic practices,
74
+ seem to be the most cost effective solution we have at this time, for significantly reducing
75
+ health care burden of these cardio-metabolic disorders.
76
+
77
+
78
+ In the early nineties, we the members of SASAT, presented to the WHO panel, a
79
+ comprehensive, integrated approach, for the prevention of these disease. Our main
80
+ emphasis was, that we should treat all CVD prevention and treatment efforts, across the
81
+ Globe equally. Having said that, we feel that we should start the prevention program at
82
+ the earliest possible stage in the development of human life. Seminal studies at the
83
+ Holdsworth Memorial Mission Hospital Mysore, India, have demonstrated that 30% of
84
+ the children born in India are of low birth weight (LBW). This hospital has kept detailed
85
+ records of every child born since 1934. Based on the available data, Medical Research
86
+ Council (MRC) of UK (www.mrc.soton.ac.uk/index.asp?/page-97) under the leadership
87
+ of Prof Caroline Fall of Southampton, has conducted a series of studies. In summary,
88
+ these studies have shown that the children with LBW are predisposed to develop,
89
+ significantly more risk for obesity, hypertension, metabolic syndrome, type-2 diabetes
90
+ and CVDs than those children born with normal weight (4-7).
91
+
92
+
93
+ According to recent survey, greater than 30% of children in New Delhi Schools in India
94
+ are obese. This survey also observed that the parents of these children also had unhealthy
95
+ life style (personal communication). Studies from the St. Paul Heart Institute, Minnesota
96
+ (www.stphc.com), have demonstrated that obese children develop endothelial
97
+ dysfunction, the earliest signs of vascular disease. These studies further demonstrate that
98
+ changes in life style and healthy diet significantly altered the blood flow dynamics in
99
+ these children in favor of normalcy. There is a great need for developing an indigenous
100
+ hand-held device, to monitor endothelial dysfunction in school children, so that we could
101
+ initiate large-scale study, to detect and manage the early signs of vascular disease. Our
102
+ mission should be, to find the disease of the vessel at the earliest and treat the disease of
103
+ the artery, than to focus on the management or risk factors for the prevention of these
104
+ diseases (8).
105
+
106
+ SASAT initiated few years ago, a “21 State” survey under the leadership of Dr Rajeev
107
+ Gupta of Jaipur, called "India Heart Watch", to explore the role of life style on the
108
+ incidence of various risks for these complex diseases. SASAT is also working with India
109
+ Heart Alliance, another NGO, which is concentrating on “Workforce Wellness” program,
110
+ as a means for developing risk reduction strategies. Several studies in the USA have
111
+ demonstrated that a well-organized work place wellness program reduces the cost of
112
+ health care for the workers by at least 30%. According to the employee insurance scheme
113
+ (EIS) of India, it costs more than 2400 Crores of rupees to provide health care for the 40
114
+ million employees. If we can initiate and implement a robust workplace wellness
115
+ program with the EIS of India, we could achieve a 30% savings ($800 Crores).
116
+
117
+ Definition of the Terminologies:
118
+
119
+ Before going into the discussions on the management of chronic disorders by holistic
120
+ approach, we will have to define the term holistic and shed some light on areas that are
121
+ pertinent this topic. What is holistic approach? According to Hippocrates, the scholar and
122
+ philosopher, "The physician treats, but nature heals." Therefore, “holistic” means in
123
+ terms of therapy, treating the whole body, mind, spirit and all the external and
124
+ environmental influences, that is associated with day-to-day living. Whereas, if one asks
125
+ a wellness expert, he or she will say that absence of disease is not wellness and describes
126
+ optimal health as a state of being, that includes: Spiritual Wellness, Emotional Wellness,
127
+ Social Wellness and Intellectual Wellness. In modern medicine, symptoms are viewed as
128
+ disease, and treatments are aimed at suppressing rather than eliminating those
129
+ symptoms. In the holistic view, symptoms are regarded as the body's expression of
130
+ imbalance (Eg: Ayurvedic Concept of Tri-Doshas) and appropriate attempts are made to
131
+ achieve normal homeostasis.
132
+
133
+ Continuing our discussions on definitions, let us look at the terms; alternate medicine,
134
+ complementary medicine, integrated medicine etc. An alternate therapy used in place of
135
+ the current modern medicine or biomedicine, is termed “Alternate Medicine”. Any
136
+ therapy that can be used in addition to, or along with modern medicine is called,
137
+ “Complementary Medicine”. If a combination of traditional therapy and modern
138
+ medicine are used, then it is called “Integrative Medicine”. Not all therapeutic modalities
139
+ of complementary and alternate medicine (CAM) are holistic in their approach. This is
140
+ true of the modern biomedicine also. Let us consider for example the management of
141
+ heart disease or diabetes and look at the approach of an allopathic doctor or a traditional
142
+ therapist. Allopath based on the symptoms manifested, will diagnose the risk factors
143
+ associated with these symptoms or disorders, such as diet, physical inactivity, blood
144
+ pressure, altered lipid or blood glucose levels and try to manage these risk factors. If we
145
+ consider the approach of a Vaidya, he or she will look at the physiological imbalances,
146
+ Dosha’s (Vata Pitta, and Kafa) associated with the individual, recommend panchakarma
147
+ procedure, to cleanse the body and try to restore the balance of the doshas with dietary
148
+ changes and herbal medicines (rasayanas). Similarly, a Yoga therapist, will recommend
149
+ an integrated approach, to the management that may include, physical exercises like
150
+ asanas, breathing practices (pranayama), various kriyas, meditation and sathwik diet.
151
+ What is wrong with this approach? In spite of the fact that these traditional therapies are
152
+ in existence for thousands of years, they do not have documented evidence about their
153
+ efficacy and safety. Since they are ancient therapeutic practices that we have inherited
154
+ over centuries, there is a strong feeling that they do not need any evidence-based
155
+ scientific proof. In view of this deficiency or lack of documentation of clinical data, on
156
+ the efficacy and patient safety of traditional medicine, regulatory agencies of European
157
+ Union and USA have banned the marketing of herbal medicine in Europe and USA.
158
+
159
+ Holistic Approach to Common Disorders
160
+
161
+ Let us consider the holistic approach for the management of the most common disorders
162
+ in India such as hypertension, obesity, metabolic syndrome and coronary artery disease.
163
+ According to studies done at the Holdsworth Memorial Mission Hospital, Mysore and
164
+ KEM Hospital in Pune, 30% of children born in India, are of low birth weight (LBW).
165
+ Children born with low birth weight have been followed for their predisposition, to the
166
+ above-mentioned disorders, with the “Mysore Cohort”. Results of these studies have
167
+ demonstrated, that LBW children develop metabolic disease, at much higher frequency
168
+ than those born with normal weight. If we want to develop preventive strategies using
169
+ holistic approach, we should start intervention, even before the conception of a child. We
170
+ should pay attention to the maternal nutrition, both micro and macronutrients. We also
171
+ have to develop a robust nutritional program for the neonatal babies as well as infants (9).
172
+
173
+ Risk Factors for Cardio-metabolic Disorders
174
+
175
+ Framingham studies initiated in the USA over 50 years ago identified risk factors that are
176
+ associated with the promotion of atherosclerosis, thrombosis and stroke. They include,
177
+ smoking, high blood pressure, altered blood lipids such as increased triglycerides,
178
+ cholesterol and decreased high-density lipoproteins and elevated blood glucose (10).
179
+ Since then several other risk promoters, have been added to this growing list of risk
180
+ factors. Based on this information, drug manufacturers developed a variety of drugs that
181
+ modulate the levels of these risk factors. Currently there is an on going debate, about the
182
+ superiority or otherwise of risk factor management, versus management of the vessel wall
183
+ disease. This debate becomes more relevant when one considers, that in spite of the drug-
184
+ induced tight management of known risk factors, significant number of individuals
185
+ experience acute vascular events. This is true of even much publicized interventions such
186
+ as, use of coronary stents, for the management of blocked arteries. Therefore, we the
187
+ members of SASAT strongly believe in the benefits of developing better prevention
188
+ strategies than just management of the risk factors or disease of the vessel.
189
+
190
+ Factors that Influence Life Style Disorders
191
+ Use of Tobacco and Tobacco Products
192
+ Number one public health problem related to life style is, smoking or use of any kind of
193
+ tobacco product. According to Global Public Health estimates, by 2030, 80 percent of
194
+ more than eight million tobacco-related deaths projected annually, will occur in low-and
195
+ middle-income countries. The enormity of this health care burden reflects in not just
196
+ steady population growth, but also the tobacco industry's aggressive efforts to target and
197
+ market to vulnerable populations. To reduce health disparities in a single act, the United
198
+ States should join the global community in ratifying the first international public health
199
+ treaty, the World Health Organization (WHO) Framework Convention on Tobacco
200
+ Control (FCTC). Tobacco addiction, the leading cause of preventable premature deaths in
201
+ the world, will claim as many as a billion lives in this century. To counter this human
202
+ catastrophe, 153 countries, including India and other neighboring countries, have ratified
203
+ the FCTC since 2003. The fact that even the so-called most advanced country, the USA,
204
+ has not joined the FCTC indicates, the enormity of such public health issues and the
205
+ powerful influence of industries. We have to establish a robust awareness program to
206
+ educate the public about the health consequences of using tobacco and its products.
207
+
208
+ Excess Salt Consumption
209
+ Cardiovascular diseases are the leading causes of death and disability worldwide.
210
+ Elevated blood pressure (BP), cholesterol and smoking, are the major risk factors.
211
+ Among these, raised BP is the most important cause, accounting for 62% of strokes and
212
+ 49% of coronary heart disease. This observed risk is throughout the range of BP, starting
213
+ at systolic 115 mm Hg. There is strong published evidence, that our current consumption
214
+ of salt in excess, is the major factor increasing BP and thereby CAD. In addition, a high
215
+ salt diet may have direct harmful effects, independent of its effect on BP, for example,
216
+ increasing the risk of stroke, left ventricular hypertrophy and renal disease. The American
217
+ Heart Association (www.aha.org) recommends consuming less than 1500 mg of sodium
218
+ a day. Several countries have initiated salt reduction programs. We should create an
219
+ awareness program regarding the health consequences of excess consumption of salt.
220
+ Excess Sugar Consumption
221
+ The third most important lifestyle related risky habit is, excess consumption of sugar.
222
+ Consumption of sugar, which is helping to drive the obesity crisis and causing millions of
223
+ deaths worldwide each year, should be controlled like other threats to public health. The
224
+ researchers and experts in the field of endocrinology, sociology, and public health, argue
225
+ that the quantities of sugar consumed by most are sufficient to alter metabolism, raise
226
+ blood pressure, muddy the signaling of hormones, alter glucose metabolism, increase the
227
+ incidence of type-2 diabetes, significantly damage the liver. Worldwide consumption of
228
+ sugar has tripled in the last five decades and helped fuel the obesity, metabolic syndrome;
229
+ which can lead to diabetes, heart disease, and stroke. It is important to remember that
230
+ every type of carbohydrate that you eat is eventually converted into a simple form of
231
+ sugar known as glucose either directly in the gut or after it passes through the liver.
232
+ Simple truth is, all the rotis, bread, pasta, cereal, rice, wheat, ragi, jawar, sorghum,
233
+ potatoes, desserts, candies and soft drinks eventually end up as glucose.
234
+ Excess Carbohydrate Consumption
235
+ When we eat excess carbohydrates, the pancreas pumps out insulin, exactly as tailored by
236
+ our DNA blue print dictates. Hence, the individual variations exist in the metabolism of
237
+ nutrients (variations in the Doshas). If the liver and muscle cells are loaded with sugar,
238
+ these cells start to become resistant to the response of insulin. The insulin receptor
239
+ number on these cells starts to decrease. Since glucose cannot get into muscle or liver
240
+ cells, it remains in the blood stream. In view of this excess glucose in the blood, the
241
+ pancreas pumps more insulin and induces resistance in insulin receptor response. Both
242
+ excess sugar and insulin in blood is toxic. Bioinformatics reveal that the body expresses
243
+ hundreds of insulin dependent genes and produces a variety of proteins, modulatory
244
+ functions of which, is not clear at the time of this writing. Similarly, excess sugar
245
+ glycates variety of proteins, including hemoglobin and alters normal physiology of
246
+ vascular system. Although elevated glucose in the blood and the levels of HbA1c are the
247
+ gold standards, to monitor type-2 diabetes, exact role for glucose induced alterations in
248
+ the proteins and their effect on the progress of diabetes induced clinical complications are
249
+ not very well understood. Average Indian meal, has greater than 70% carbohydrates; we
250
+ should seriously work on creating an improved, balanced diet for healthy life style.
251
+ Excess Fat Consumption
252
+ Fat is one of the three major nutrients (along with proteins and carbohydrates), which
253
+ supply calories to the body. Fat provides essential fatty acids, which are not made by the
254
+ body and therefore, must be obtained from food. When you exercise, body uses up the
255
+ calories from carbohydrates in the first 20 minutes and then it begins to depend on fat for
256
+ source of energy. Eating too much saturated fat (in general the type of fat that solidifies at
257
+ room temperature; butter & ghee) is one of the major risk factors for heart disease. These
258
+ are the biggest dietary cause of high HDL cholesterol (bad cholesterol). When selecting a
259
+ fat or oil for cooking, limit saturated fat to less than 10% of calories. Foods made with
260
+ hydrogenated oils (Dalda, Crisco, Vanaspathi etc) should be avoided as they contain high
261
+ levels of trans fatty acids, which are linked to heart disease. Too much fat also increases
262
+ the risk of CAD, because of its high calorie content, which increases the chance of
263
+ becoming obese.
264
+
265
+ Excess Weight as Modulator of CVD Risk
266
+ Excess weight and obesity are also considered as leading causes of hypertension and
267
+ type-2 diabetes. According to population-based studies, two-thirds of obese people are at
268
+ risk for hypertension. A study conducted in Portugal, demonstrated a significant
269
+ correlation between excess body weight and blood pressure in children as well as
270
+ adolescent populations (11). They recommended using BMI and waist circumference as
271
+ test parameters for monitoring excess body weight. According to a CDC study waist
272
+ circumference and elevated triglyceride levels help identify people at risk for developing
273
+ metabolic syndrome. Obesity affects a number of hormonal functions including, renin-
274
+ angiotensin-aldosterone system. This system controls the level of sodium and water in
275
+ the body. Increased renal sodium re-absorption results in an altered blood pressure.
276
+ Several central and peripheral abnormalities lead to the development of high arterial
277
+ pressure in these individuals. Perturbation of vessel wall and blood cell integrity produce
278
+ an altered state of homeostasis and initiates endothelial dysfunction. Obesity as a leading
279
+ cause of hypertension can also be the initiator of endothelial dysfunction, metabolic
280
+ syndrome. This syndrome is a common cause for complex chronic disorders such as
281
+ dyslipidemia, hypertension, and insulin resistance.
282
+
283
+ Prevalence of Metabolic Syndrome
284
+
285
+ Metabolic Syndrome (MS) is basically the clustering of various altered metabolic
286
+ conditions such as insulin resistance, high triglycerides, dyslipidemia, high blood
287
+ pressure, abdominal obesity and impaired glucose metabolism (12). There is considerable
288
+ confusion about the definition of this syndrome proposed by various professional
289
+ organizations (NCEP-ATP111, IDF, WHO, CDC, etc) to identify who is at risk for
290
+ developing this syndrome and whether or not this syndrome is a risk factor for diabetes
291
+ and CVDs. Clinicians are encouraged to follow first the known classical risk factors and
292
+ then take into consideration the abdominal obesity and MS, and this combined risk is
293
+ defined as cardio metabolic risk. In a recent survey of school children in New Delhi,
294
+ India, the prevalence of overweight or obesity was greater than 35%. The prevalence of
295
+ MS in Indians was 23.2%, 18.3%, and 25.2% according to the WHO, ATP111, and IDF
296
+ definitions respectively. The prevalence of MS for the age group 60-69 was, WHO 47.9%,
297
+ ATP111 33.5%, and IDF 43.7% respectively. Subjects with diabetes and obesity seem to
298
+ have a much higher prevalence of MS >70%.
299
+
300
+ Prevalence of Type-2 Diabetes
301
+
302
+ Indians have a high incidence of type-2 diabetes and cardiovascular disease, despite a low
303
+ prevalence of obesity. Based on preliminary collaborative studies done in Chennai, India,
304
+ by the researchers at Madras Diabetes Research Foundation and the staff at the
305
+ University of Minnesota, a hypothesis was developed to explain excess burden of T2D in
306
+ this population. They hypothesized that the excess of risk may be due to a high
307
+ propensity towards the abdominal fat accumulation in the Asian subjects. They
308
+ compared waist measurements and BMI data from the CURES (Chennai Urban Rural
309
+ Epidemiological Study) survey of southern Indians, with those from three US ethnic
310
+ groups (Caucasians; 1809, African Americans; 1993 and Mexican Americans; 2116)
311
+ from NHANES III (Third National Health And Nutritional Examination Survey) data. A
312
+ total of 15,733 subjects from CURES ad 5,975 from NHANES111 met the inclusive
313
+ criteria (age 20-39, no diabetes). Mean waist measurements were 89.8cm for US men
314
+ 86.4cm for US women 78.4cm for Indian men and 77.6cm in Indian women. BMIs were
315
+ 25.9kg/m2 in US men 26.5kg/m2 in US women, 21.8kg/m2 in Indian men and 22.4kg/m2
316
+ in Indian women. To account for between-population differences in body size and
317
+ general adiposity, they divided the waist circumference by the BMI. The waist to BMI
318
+ ratio was significantly higher for Indian men and women compared to all US race/sex
319
+ groups. Results of these studies, demonstrate that the Indian population has excess
320
+ visceral fat deposits, relative to overall body distribution.
321
+
322
+ Goals of Medical Nutrition Therapy (MNT)
323
+
324
+ MNT for pre-diabetes emphasize the importance of lifestyle in decreasing the risk for
325
+ type- diabetes by increasing physical activity and promoting food choices that facilitate
326
+ moderate weight loss (13). Life style modifications reported to produce weight loss of
327
+ 10% or 10 -12 Kg over 3-6 months. Change in life style and the related loss can be
328
+ sustained for 2-4 years. However. One should keep in mind that for CVD fitness and to
329
+ reduce risk for CVD one need to work out a minimum of 30 minutes a day with moderate
330
+ physical activity. Sixty minutes per day of physical activity is needed for preventing
331
+ weight gain and sixty to 90 minutes to avoid gain after weight loss. There is no gold
332
+ standard when it comes to what is the correct diet for diabetics. Adults should balance
333
+ their diet and consume 45-65% as carbohydrates for their daily energy needs, 20-35%
334
+ from fat and 10-35 from proteins. Jus to give an example of how complex is the
335
+ management of diet; let us examine the fat intake and its benefits and ill effects. Alpha
336
+ linolenic acid has many health benefits especially in the inhibition of inflammatory
337
+ process associated with CVD, autoimmune disease, diabetes and bowl disease. It also
338
+ serves as precursor for the n-3 fatty acids, EPA and DHA. In reality all seafood are
339
+ beneficial with regard to Omega-3 fatty acid content. A high n-6 to n-3 ratio in daily diet
340
+ appears to promote inflammation and oxidation. Original focus of researchers in this
341
+ approach was related to beneficial effects on cardiovascular and endocrine systems.
342
+ However, recent studies in neurosciences is suggesting, that one consequence of such a
343
+ diet, is increased inflammation and this may have adverse effect on brain and nervous
344
+ system and increase mental illness. Average Americans consume a diet with n-6 to n-3
345
+ ratio as high as 17:1, which is pro-inflammatory. A beneficial ratio is close to 2:1(14).
346
+ Integrated Management of Life Style Disorders:
347
+ Life style disorders such as hypertension, obesity, metabolic syndrome, type-2
348
+ diabetes, heart disease and stroke are very complex diseases. Understanding the
349
+ risk factors, anticipating the clinical complications associated with these risk factors
350
+ and effective management of these risks involves a team of specialists, health care
351
+ workers, internists, endocrinologists, dieticians, and experts in various allied health
352
+ fields. Just take the example of diabetes-mediated complications, such as
353
+ vasculopathy, neuropathy, nephropathy and retinopathy, all leading to the end
354
+ organ failure. Hypertension, obesity, metabolic syndrome and thrombotic complications
355
+ are chronic, complex disorders, which have reached epidemic proportions in industrial
356
+ nations as well as developing countries. In order to manage these public health problems,
357
+ one has to understand the underlying causes, diagnose the risks that promote the progress
358
+ of these diseases and effectively manage the risks, to reduce or prevent acute vascular
359
+ events leading to mortality or morbidity. According to experts, 30% of the children born
360
+ in some of the developing countries are of low birth weight. This is real, unacceptable
361
+ and preventable. There are 1.3 billion obese people worldwide. This also is real,
362
+ unacceptable and preventable. Creating awareness, developing educational, diagnostic
363
+ and prevention strategies are the most cost effective and proven paths available. Just a
364
+ few years ago by creating awareness and developing effective advocacy programs, use of
365
+ palm oil in the US fast food industry was virtually eliminated. Similarly awareness
366
+ programs, and life style modifications drastically reduced CVD mortality and morbidity
367
+ in USA and Finland (16, 17). More and more countries have started preventive work at
368
+ local and national level. An Italian study with a sample size of 52,300 documented an
369
+ increase in the prevalence of excess weight in adults and a positive association between
370
+ weight gain and chronic disease. Authors conclude that to reduce the prevalence of
371
+ chronic disease, a policy promoting a healthier life style is desirable (17).
372
+ Comprehensive preventive measures, such as exercise, dietary interventions, body weight
373
+ control and pharmacotherapy are cheaper compared to the cost of treating and
374
+ management of consequences from these chronic conditions (17-22).
375
+
376
+ Sedentary Life VS. Physical Activity
377
+
378
+ Of all the risk promoters associated with these metabolic disorders, sedentary lifestyle is
379
+ one of the major contributors to the initiation and progress of these diseases. Physical
380
+ inactivity is now the fourth leading independent risk factor for death, caused by
381
+ non-communicable chronic disease. Physical activity has numerous positive effects
382
+ 
 on health of individuals. Regular to moderate-intensity physical activity reduces the risk
383
+ for acute vascular events significantly. The available data clearly indicates benefit effect
384
+ of physical exercise, Globally; across all countries, cultures, gender, age and ethnicity.
385
+ Physical activity is the most effective single therapy among all lifestyle interventions
386
+ including diet, various therapies, and psychosocial changes and practices. Studies of
387
+ short-term exercise program as well as long-term have shown improvement in endothelial
388
+ function, metabolic and cardiovascular parameters. For those who can afford, a robust
389
+ fitness program will be very useful. However, just brisk walking several times a week is
390
+ better than living a sedentary life (19-22).
391
+ Holistic Approach Through Integrated Yoga Therapy
392
+ Yoga practices of all kinds have been claimed to have positive effects on the health of an
393
+ individual (23-25). S-vyasa, the Yoga University (www.svyasa.org) in Bangalore, has
394
+ been participating in a National program called “Stop Diabetes”. They also have an
395
+ integrated yoga therapy that is customized for hypertensive subjects, obese individuals,
396
+ diabetics and post myocardial infarction (MI) and stroke patients. Two major studies
397
+ published widely of over 4000 patients have demonstrated patients randomized to
398
+ exercise-based cardiac rehabilitation post-MI, have a statistically significant all–cause
399
+ and cardiac mortality, compared to those receiving conventional therapy only. Similarly
400
+ the Isha Foundation (www.ishafoundation.org) near Vellaingiri Mountains in Coimbatore
401
+ District has special program for diabetics, “Isha-Yoga and Isha-Diet”. The diet at this
402
+ center is pretty close to a balanced diet and seems to be doing good for the followers of
403
+ this special diet. They have incorporated boiled peanuts as major source of protein,
404
+ reduced the fat and carbohydrate content, included sprouted legumes, fruits and
405
+ vegetables. Manchanda et al., at New Delhi, India demonstrated retardation of coronary
406
+ atherosclerosis with Yoga life style intervention. Based on the results of their study (n-
407
+ 42), they concluded that Yoga lifestyle intervention retards progression and increases
408
+ regression of coronary atherosclerosis in patients with severe coronary artery disease (23).
409
+ Yoga an ancient science of physical and mental activity, has gained popularity
410
+ throughout the world. In spite of this popularity, health care providers have been slow to
411
+ recognize the merits of this approach. In addition, there is lack of data from well thought
412
+ out randomized clinical studies with populations at high risk for hypertension, obesity,
413
+ metabolic syndrome, type-2 diabetes, heart disease and stroke. A review of Yoga
414
+ programs (1980-2007) for the four leading risk factors (overweight, high blood pressure,
415
+ high blood glucose and elevated blood cholesterol) of chronic diseases, concluded that
416
+ future studies should be designed and conducted, to identify programs best suited for
417
+ diverse populations as well as for specific chronic health conditions. They also
418
+ recommended that duration, intensity frequency and the types of yoga practices (asanas,
419
+ pranayama, kriyas and meditation) and their sequences, should be clearly described in the
420
+ clinical protocols. Authors also stressed the need to standardize and compare various
421
+ components of integrated yoga therapy programs for the research purpose (25).
422
+ Lifestyle Modifications
423
+ Lifestyle modifications address several CAD risk factors at once and in general free of
424
+ side effects. Vestfold Heartcare Study Group demonstrated the influence of life style
425
+ measures and five-year coronary risk by a comprehensive lifestyle intervention programs
426
+ in patients with coronary heart disease. The Diabetes Prevention Program Research
427
+ Group conducted one of the largest studies on the beneficial effects of lifestyle. In this
428
+ study, of the 3234 patients recruited, 1082 were placebo, 1073 took 850 Mg Metformin
429
+ twice a day and 1073 were administered intensive lifestyle intervention (Protocol of the
430
+ study: http://www.bsc.gwu.edu/dpp). Based on the results of their study, the authors
431
+ concluded that lifestyle changes and treatment with metformin, both reduced the
432
+ incidence of diabetes in persons at high risk. The lifestyle intervention was more effective
433
+ than metformin (15).
434
+ Designing, conducting and validating the beneficial effects of lifestyle interventions is
435
+ hard. Interventions that work in some societies may not work in the others, because of the
436
+ complexities that exist in the social, economic, cultural and dietary diversities that exist.
437
+ It is difficult to standardize each of the components of holistic and lifestyle interventions.
438
+ Since smoking, bad diet, excess weight, salt and sugar consumption are leading
439
+ promoters of risks associated with the development of hypertension, MS, T2D, and
440
+ vascular diseases, a concerted effort should be made, to develop strategies that can reduce
441
+ or prevent the development of these conditions at all stages in life, including during
442
+ intrauterine growth, in the nutrition of new born babies, young children, adolescents and
443
+ adults (15-18, 26-29).
444
+
445
+ Life style disorders such as hypertension, obesity, metabolic syndrome, heart disease and
446
+ stroke are complex diseases (28, 29). In a country like India, where the prevalence of
447
+ these diseases have reached epidemic proportions, providing modern health care to all
448
+ seems a herculean task. In addition, there is a growing disbelief in the role of modern
449
+ medicine in the area of prevention. Modern medicine by and large is based on the
450
+ management of symptoms and the risk factors associated with these symptoms. As such
451
+ concentrates heavily, on the risk factor management. Therefore, in order to provide
452
+ community at large, an easily accessible, acceptable and affordable health care, we need
453
+ to develop a fusion between what is best in the traditional Indian Medical System and the
454
+ modern medicine. For lack of a better terminology, we will call Indian Integrated
455
+ Medicine. In our enthusiasm to provide a holistic therapy, we should not ignore the fact,
456
+ that some of our traditional systems lack clinical data, to support their claims. For
457
+ instance the one of the best-cited study of Dean Ornish, used only 28 subject to show the
458
+ benefit of low fat diet (26, 27). We need to develop robust data on the benefits of holistic
459
+ approach. Till we have such an evidence-based data, it is our suggestion, that these
460
+ methods be used as complementary medicine and not as an alternate medicine.
461
+
462
+ Discussion
463
+ The goals and objectives in caring for patients with diabetes mellitus should be to
464
+ eliminate symptoms and prevent, or at least slow, the development of complications.
465
+ Micro-vascular (ie, eye and kidney disease) risk reduction could be accomplished,
466
+ through control of glycemia and blood pressure; macro-vascular (ie, coronary, cerebro-
467
+ vascular, peripheral vascular) risk reduction can be achieved through control of lipids,
468
+ hypertension, smoking cessation, and aspirin therapy; metabolic and neurologic risk
469
+ reduction, through control of glycemia. Pathogenesis of cardio-metabolic disorders are
470
+ modulated and promoted by a variety of altered metabolic pathways and effective
471
+ management of these disorders, requires appropriate goal setting, dietary and exercise
472
+ modifications, medications, appropriate self-monitoring of blood glucose, regular
473
+ monitoring for complications, and laboratory assessment. If we can manage this complex
474
+ treatment plan with our holistic approach, it is great, if not, we need to consider
475
+ integrated approach of using what is best in the modern medicine and the traditional
476
+ systems. Majority of CAM programs at the Academic Health Centers in the USA have
477
+ adopted this approach in the management of diseases.
478
+ For example, the Center for Spirituality and Healing at the University of Minnesota, has
479
+ been offering complementary healing techniques using Spiritual Healing Practices of East
480
+ and West. Although we have over hundred Medical Colleges in India, there are hardly
481
+ any colleges, which have a designated department for CAM programs and offer holistic
482
+ therapies as one of the choices. Since 1979, over 19, 000 individuals have completed the
483
+ 8-week mindfulness-based stress reduction (MBSR), at the Center for Mindfulness in
484
+ Medicine, at the University of Massachusetts. This center is one of the oldest and largest
485
+ Academic Medical-Center based stress reduction program in the world. Department of
486
+ AYUSH, Government of India, should take leadership in establishing post-graduate
487
+ education and research programs, similar to the post graduate programs in Biomedicine
488
+ established by the Indian Medical Council (AIIMs). The expert committee of the Rajiv
489
+ Gandhi University of Health Sciences (RGUHS), Karnataka, has recommended
490
+ establishment of such a platform in the State of Karnataka. We sincerely hope the
491
+ development of an Independent Institute for Complementary and Alternate Medicine, so
492
+ that the traditional healing therapies as well as holistic approaches to the management of
493
+ chronic diseases could be tested, standardized, promoted and implemented.
494
+ References:
495
+
496
+ 1. Rao GHR, Kakkar V. V: Coronary Artery Disease in South Asians: Epidemiology,
497
+ Risk Factors, and Prevention. JP Medical Publishers, India. 2001.
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+ 2. Rao GHR, Thanikachalam, S: Coronary Artery Disease: Risk Promoters,
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+ Pathophysiology and Prevention. JP Medical Publishers, India. 2005.
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+ 3. Rao, GHR, Mohan V: Type-2 Diabetes in South Asians: Epidemiology, Risk
501
+ Factors and Prevention. JP Medical Publishers, New Delhi, India. 2006
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+ 4. Veena SR, Geetha S, Leary et al: Relationship of maternal and paternal birth weight
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+ to features of the metabolic syndrome in the adult offspring: An intergenerational
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+ study in South India. Diabetologia 2007, 50(1): 43-54.
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+ 5. Victoria CG, Adair L, Fall C: Maternal and child under nutrition: Consequences for
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+ adult health and human capital. Lancet 2008, 371(9609): 340-57.
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+ 6. Fall C: Maternal Nutrition: effects of health in the next generation. Ind. J. Med.
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+ Res. 2009, 130 (5): 593-99.
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+ 7. Yagnik CS: Fetal Origins of health and disease: Commentary: Fetal Origins of
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+ Cardiovascular risk-nutritional and non-nutritional. Ind J. Epi. 2001, 30:57-59.
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+ 8. Divani AA, Luft AR, Flaherty JD, Rao GHR: Direct diagnosis is superior to risk
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+ prediction tools for management of vessel wall disease. Frontiers in Neurology
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+ 2012 (In Press).
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+ 9. Mohan KL, Escott-Stump S: Krausse’s Food and Nutrition. Saunders Elsevier
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+ 2008, St Louis MO.
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+ 10. www.framighmaheartstudy.org/risk/index/html
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+ 11. Souza MG, Rivera IR, Silva MA et al: Relationship of obesity with high blood
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+ pressure in children and adolescents. Arq Bras Cardiol. 2010 (Pub Med 20428712).
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+ 12. Ashner P: Metabolic syndrome as a risk factor for diabetes. Exp. Rev. Cardiovasc
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+ Ther. 2010, 8:407-12.
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+ 13. Franz M: Medical Nutrition Therapy for Diabetes Mellitus and Hypoglycemia of
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+ non-diabetic origin. In: Krausse’s Food and Nutrition, Saunders-Elsevier, 2008. St
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+ Louis MO.
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+ 14. Davis BC, Kris-Eitherton PM: Achieving essential acid status in vegetarians.
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+ Current knowledge and practical implications. Am. J. Clin. Nutr. 78:6405, 2003.
526
+ 15. Diabetes Prevention Program Research Group: Reduction in the incidence of
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+ Type-2 diabetes with lifestyle intervention or metformin. N Engl J. Med. 2002,
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+ 346:393-403.
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+ 16. Pax XR, Li GW, Hu YH et al: Effect of diet and exercise in preventing NIDDM
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+ in people with impaired glucose tolerance: the Da Qing IGT and Diabetes Study.
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+ Diabetes Care.1999, 22:623-34.
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+ 17. Tuomilchto J, Lindstrom J, Erikson JG et al: Prevention of type-2 diabetes
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+ mellitus by changes in life style among subjects with impaired glucose tolerance. N
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+ Engl J. Med. 2001, 344: 1990-92.
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+ 18. Blair SN, Kohl HW, Gordon NF et al: How much of physical activity is good
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+ enough? Ann Rev Pub Health. 1992, 13: 99-120.
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+ 19. Matherson GO, Khigl M, Dvorak et al: Responsibility of sport and exercise
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+ medicine in preventing and managing chronic disease: applying knowledge and
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+ skill overdue. Br J. Sports Med. 2011,45(16): 1272-82.
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+ 20. Roth FW, Gordon SE, Carlson CJ: Waging war on modern chronic disease:
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+ primary prevention through exercise biology. J. Appl Physiol 2000, 88(2): 774-82.
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+ 21. Sugathan TN: Prevention of non-communicable diseases (NCDs). 2010, 131: 14-
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+ 16.
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+ 22. Rastogi T, Vaz M, Spiegelman D. et al: Physical activity and risk for coronary
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+ artery disease in India. Ind. J. Med. 2004, 33:759-67.
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+ 23. Manchanda SC, Narang R, Reddy KS: Retardation of coronary atherosclerosis
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+ with yoga lifestyle intervention. Assoc. Phy. India. 2000, 48 (7): 687-94.
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+ 24. Joliffe JA, Rees K, Taylor RS: Exercise-based rehabilitation for coronary artery
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+ disease. Cochrane Database Rev. 2000, (4) CD001800.
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+ 25. Yang K: A review of yoga programs for four leading risk factors for chronic
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+ diseases. eCAM 2007, 4(4): 487-91.
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+ 26. CDC Report: Achievements in public health 1990-1999. Declines in death from
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+ heart disease and stroke. www.cdc.gov/mmwr/preview/mmwrhtm/mm4830al/htm
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+ 27. Puska P: Coronary artery disease and stroke in developing countries: time to act.
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+ Int. J. Epi. Assoc. 2001, 30:1493-94.
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+ 28. Calza S, Decark A, Ferraroni M et al: Obesity and prevalence of chronic disease
557
+ in the 1999-2000 Italian National Survey. MC Public Health 2008, 8:140-49.
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+ 29. Lee YH, Jeong HS, Kim NS et al: The effect of an exercise program on
559
+ anthropometric metabolic and cardiovascular parameters in obese children. Korean
560
+ Circ. 2010, 40:179-84.
561
+
562
+
563
+
564
+ Conflict of Interest: The authors do not have any conflicts of interest, financial or
565
+ otherwise.
566
+ Acknowledgements: This article is based on a series of invited lectures given to the
567
+ students of s-VAYSA, Bangalore, in the summer of 2009. First author, Dr Rao thanks
568
+ members of the SASAT family, Vice Chancellor s-VYASA, Vice Chancellor, RGUHS
569
+ and the University of Minnesota, for the support and encouragement of his activities.
subfolder_0/Immediate effect of Indian music on cardiac autonomic control and anxiety A comparative study.txt ADDED
@@ -0,0 +1,914 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ 93
2
+ © 2015 Heart India | Published by Wolters Kluwer - Medknow
3
+ Immediate Effect of Indian Music on Cardiac Autonomic
4
+ Control And Anxiety: A Comparative Study
5
+ Karuna Nagarajan, Thaiyar M. Srinivasan, Nagendra Hongasandra Rama Rao
6
+ Department of Research, Division of Yoga and Life Sciences, Swami Vivekananda Yoga Anusansadha Samsthana (S-VYASA) University,
7
+ Bangalore, Karnataka, India
8
+ A B S T RA CT
9
+ Background: Many studies have shown that music experience is the key to develop future therapies in order to
10
+ prevent the development of cardiovascular disorders. Aims: The present study aimed to evaluate the effects of
11
+ heart rate variability (HRV) on exposure to Indian raga Bhupali with that of two control groups of pop music and
12
+ no music or silence in a sample of healthy subjects. Materials and Methods: Autonomic functioning, anxiety level,
13
+ and subjective feeling were assessed in 28 healthy subjects, both male and female [group mean age ± standard
14
+ deviation (SD), 19.68 ± 2.57] during three sessions. The three sessions were the musical session intervention with
15
+ the Indian raga Bhupali, pop music with steady beats, and “no music session.” Assessments were made before
16
+ (5 min), during (10 min), and after (5 min) in each of the three states on 3 separate days. Results: During the Indian
17
+ raga, there was a significant decrease in the low frequency (LF) power (P < 0.01) and increase in the high frequency
18
+ (HF) power (P < 0.01) in the frequency domain analysis of the HRV spectrum. There was also a significant decrease
19
+ in the mean heart rate (HR) (P < 0.01) and a significant increase in the NN50 (P < 0.05) and RMSSD (P < 0.05) in
20
+ the time domain analysis of HRV. Both frequency and time domain measures are indicative of parasympathetic
21
+ activity. The anxiety level significantly (P < 0.001) decreased post the Indian raga session and significantly (P < 0.01)
22
+ increased post the pop session. The subjective assessment of perceived feeling using the visual analog scale
23
+ (VAS) comparing Indian raga with pop and silence sessions showed a significant difference of feeling positive (P
24
+ < 0.01). Conclusions: Exposure to the Indian raga Bhupali reduced sympathetic activity and/or increased vagal
25
+ modulation with reduced anxiety levels and subjective assessment of perceived feeling showed positive changes.
26
+ Key words: Aesthetic mood, Heart Rate Variability (HRV), Indian raga Bhupali
27
+ Address for correspondence:
28
+ Ms. Karuna Nagarajan, Division of Yoga and Life Sciences,
29
+ Swami Vivekananda Yoga Anusansadha Samsthana (S-VYASA)
30
+ University, # Ekanth Bhavan, Gavipuram Circle, KG Nagar,
31
+ Bangalore - 560 019, Karnataka, India.
32
+ E-mail: [email protected]
33
+ INTRODUCTION
34
+ Music powerfully modulates social, emotional processes,
35
+ cognitive status, and mood, thus contributing to healing.[1] The
36
+ Greeks, Hebrews, and Persians used music systematically as a
37
+ therapy.[2] Music therapy can be used effectively as a preventive
38
+ measure, and it can be used as a supplement to the main treatment
39
+ after the onset of the pathological condition. The appropriate
40
+ type of music, with specific tonal quality, played at a suitable
41
+ time helps to drive out negative feelings such as dependency
42
+ and loneliness. Music creates an atmosphere of harmony and
43
+ well-being.[3] Musical compositions are complex blends of
44
+ expressively organized sound consisting of five elements, viz.,
45
+ rhythm, melody, pitch, harmony, and interval. These five elements
46
+ Access this article online
47
+ Quick Response Code:
48
+ Website:
49
+ www.heartindia.net
50
+ DOI:
51
+ 10.4103/2321-449X.172350
52
+ This is an open access article distributed under the terms of the
53
+ Creative Commons Attribution-NonCommercial-ShareAlike 3.0
54
+ License, which allows others to remix, tweak, and build upon the
55
+ work non-commercially, as long as the author is credited and the
56
+ new creations are licensed under the identical terms.
57
+ For reprints contact: [email protected]
58
+ How to cite this article: Nagarajan K, Srinivasan TM, Rama Rao NH.
59
+ Immediate Effect of Indian Music on Cardiac Autonomic Control And
60
+ Anxiety: A Comparative Study. Heart India 2015;3:93-100.
61
+ O riginal Article
62
+ [Downloaded free from http://www.heartindia.net on Thursday, July 28, 2016, IP: 14.139.155.82]
63
+ Nagarajan, et al.: Autonomic variables with Indian melody
64
+ 94
65
+ Heart India, Vol 3 / Issue 4 / Oct-Dec 2015
66
+ to modify emotions, to let go emotions, to match their current
67
+ emotion, to rejoice or pacify themselves, and to relieve stress
68
+ and rejuvenate.[10]
69
+ It was reported that positive emotions are related to speeded-up
70
+ recovery from cardiovascular reactivity generated by negative
71
+ emotions for resilient individuals. Research has also shown that
72
+ positive emotions may have beneficial physical and psychological
73
+ health outcomes by serving a defensive role and thus, providing a
74
+ useful remedy to the problems associated with negative emotions
75
+ and illness.[11]
76
+ The Indian raga Bhupali, which belongs to Kalyan thaat, equivalent
77
+ to the Lydian mode[12] of Western music was used in our study. This
78
+ raga uses ri, dha teevra or sharp notes, which instill the shringara rasa
79
+ or aesthetic mood of love within the listener.[7] This raga is sung
80
+ in the evening. Listening to the right raga at the right time is said
81
+ to smoothen the natural transitions and attune the body and mind
82
+ to the circadian cycle.[2] Our proposal is that autonomic changes
83
+ observed in other studies in response to listening to music are
84
+ mainly elicited by changes in emotional and psychological states
85
+ and these states can be favorably changed by the combination of
86
+ notes or swaras used in the raga as mentioned above in the article.
87
+ The biological effects of Indian music, leading to its therapeutic
88
+ efficacy are not entirely known. In this study, we aimed at further
89
+ studying some biological correlate of listening to the particular
90
+ Indian raga, which instills a positive aesthetic mood within the
91
+ listener. Previous studies have demonstrated that the autonomic
92
+ nervous system may serve as a way by which music can be
93
+ effectively used for the therapeutic application. This is explored
94
+ by the assessment of heart rate variability (HRV). Therefore, the
95
+ objective of this study was to assess the effects of exposure to
96
+ the Indian raga Bhupali on HRV with that of two control groups
97
+ of pop music and no music or silence in a sample of healthy
98
+ subjects. Secondarily, we correlated autonomic responses to
99
+ musical stimuli with that of the state anxiety level before and
100
+ after each music style. No previous studies have investigated the
101
+ short-term effects of the Indian raga Bhupali and pop music on
102
+ HRV. The understanding of physiological responses induced by
103
+ music experience is a key to develop future therapies in order to
104
+ prevent the development of cardiovascular disorders.
105
+ Heart rate variability and emotions
106
+ HRV is a measure of the continuous interplay between
107
+ sympathetic and parasympathetic influences on the heart rate
108
+ (HR) that yields information about cardiac autonomic flexibility
109
+ and thereby represents the capacity for regulated emotional
110
+ responding.[13]
111
+ In one of the studies, it was documented by McCraty that anger
112
+ in a normal sample elicited an increase in the low frequency and
113
+ low frequency (LF)/high frequency (HF) ratio components of
114
+ HRV, suggesting disruption in sympathovagal discharge caused
115
+ are vital when selecting music to invoke both psychological and
116
+ physiological responses within the listener.[4]
117
+ Indian musicological analysis
118
+ Indian music therapy is about the correct intonation and
119
+ precise use of the basic elements such as nada (sound), shruti
120
+ (musical interval), swara (note), raga (melody) tala (beat), and
121
+ laya (rhythm).[3] The four elements noteworthy in this context
122
+ are swara or note, Indian raga or melody, rasa or aesthetic mood,
123
+ and thaat or mode.
124
+ Sa, ri, ga, ma, pa, dha, and ni are the seven notes or swaras of the
125
+ Indian musical scale. Each of the notes or swaras either lowered
126
+ or raised in pitch, are known as komal (flat note) or teevra (sharp
127
+ note). Shadja (Sa) and Panchama (Pa) are two steady or natural notes
128
+ having no distortion or displacement. Rishabha (ri), Gandhara (ga),
129
+ Madhyama (ma), Dhaivata (dha), and Nishada (ni) are accepted as
130
+ having two forms as stated above, namely, one high and one low.
131
+ It is total of 12 notes.[5]
132
+ Rasa or aesthetic mood is comprehended when an emotion is
133
+ awakened in such a manner that it has none of its cognitive
134
+ tendencies, and it is experienced in an impersonal contemplative
135
+ mood.[6] Raga is the sequence of selected notes (swaras) that lend
136
+ an appropriate rasa or aesthetic mood in a selective combination.
137
+ Depending on its tonal quality, a raga could induce or intensify joy
138
+ or sorrow, excitement or peace, and it is this quality, which forms
139
+ the foundation for therapeutic application.[6] Thaat or mode is a
140
+ certain array of the seven notes with a change in shuddha (pure),
141
+ komal (flat), and teevra (sharp). Every raga has a fixed number of
142
+ komal (soft) or teevra (sharp) notes, from which the thaat can be
143
+ identified.[7] The shringara rasa or aesthetic mood of love is able
144
+ to bring out the beauty and harmony that is present in everything
145
+ and every moment. It creates the frame of mind, which enables
146
+ us to focus on generating a lovely ambience within oneself and
147
+ with one’s friends and family.[8]
148
+ The ragas are classified according to the combination of shuddha
149
+ (natural), komal (flat), and teevra (sharp) notes or swaras used
150
+ and consequently the particular rasas or moods they are able
151
+ to produce. Ragas with shuddha or pure notes ri, ga, dha depict
152
+ the aesthetic mood or the rasa of love; komal or flat ri, dha create the
153
+ rasa of compassion and calmness; komal or flat ga, ni creates the
154
+ rasa of courage or self-assurance within the listener.[7] Listening to
155
+ Indian ragas, which depict the mood of love, compassion, peace,
156
+ and courage, may be used for dissolving negative thoughts and
157
+ thereby bringing balance in the mental and emotional states.[5]
158
+ The aesthetic mood of calmness is the culmination of other rasas
159
+ such as love, compassion, and courage and is transcendental in
160
+ nature.[6] The consolidation and evocation of rasa, then, represent
161
+ the function of all Indian fine arts, especially music and dance.[9]
162
+ Many studies have suggested that the most common purpose of
163
+ musical experiences is to persuade emotions: People use music
164
+ [Downloaded free from http://www.heartindia.net on Thursday, July 28, 2016, IP: 14.139.155.82]
165
+ Nagarajan, et al.: Autonomic variables with Indian melody
166
+ 95
167
+ Heart India, Vol 3 / Issue 4 / Oct-Dec 2015
168
+ by increase in the sympathetic contribution. Appreciation, on
169
+ the other hand, elicited an increase in the medium frequency
170
+ component and a slight increase in the LF component, suggesting
171
+ more parasympathetic than sympathetic activation during the
172
+ positive emotion.[14]
173
+ The activation of the sympathetic branch of the autonomic
174
+ nervous system (ANS) increases HR while the activation
175
+ of the parasympathetic branch, primarily intervened by the
176
+ vagus nerve, slackens it. Variation in the HR can be caused
177
+ by a variety of factors including breathing, emotions, and
178
+ various physical and behavioral changes. The HR changes
179
+ in response to internal body rhythms, many of which reveal
180
+ various homeostatic control systems. In general, high HRV
181
+ represents a flexible ANS that is responsive to both internal
182
+ and external stimuli and is associated with fast reactions and
183
+ adaptability. Diminished HRV, on the other hand, represents a
184
+ less transient, less flexible ANS that is less able to respond to
185
+ stimuli change. It follows that HRV may provide a promising
186
+ index of an athlete’s ability to respond to both physical and
187
+ emotional stress and thus, of the capacity to perform physically
188
+ at maximal levels.[13]
189
+ Hypothesis
190
+ We hypothesized that the participants who listened to Indian
191
+ raga Bhupali would be influenced by the aesthetic mood of the
192
+ song that depicts shringara rasa or love. This state of mind would
193
+ bring about relaxation. Further, that it would increase cardiac
194
+ parasympathetic activity, which is exclusively responsible for
195
+ the HF peak of the HR power spectrum. This would also be
196
+ correlated with lower scores of state anxiety. We also predicted
197
+ that pop music which is much liked by teenagers may be exciting
198
+ and cause an increase in cardiac sympathetic activity responsible
199
+ for the LF peak of the HR power spectrum. The study also
200
+ had another control condition of no music or silence which we
201
+ predicted may not help to silence or relax the mind.
202
+ MATERIALS AND METHODS
203
+ Subjects
204
+ Twenty-eight undergraduate college students, both male and
205
+ female, with age ranging from 18 years to 24 years (19.68 ±
206
+ 2.57 years) were recruited for the study. They were all students
207
+ of the Residential Yoga University. All of them were of normal
208
+ health based on routine case history and clinical examination.
209
+ All participants expressed their willingness to participate in the
210
+ experiment, and the project was approved by the institution’s
211
+ ethics committee. The study protocol was explained to the
212
+ subjects, and their signed consent was obtained.
213
+ Design
214
+ Each subject was assessed in three sessions, into which they
215
+ are randomly assigned. Two of them are musical sessions and
216
+ one session was without music. One musical session was an
217
+ intervention session with the Indian raga Bhupali, based on
218
+ popular composition. The second — control session — was with
219
+ pop music with steady beats. The third — control session was
220
+ silence or “no music session.” All the three sessions consisted
221
+ of three states, i.e., “pre” (5 min), “during” (10 min), and “post”
222
+ (5 min) for HRV. The allocation of participants to the three
223
+ sessions was random using a standard random number table.
224
+ The assessments were made on three different days for each
225
+ recording, not necessarily on consecutive days but at the same
226
+ time of the day (i.e., the self-as-control design). The design is
227
+ presented schematically in Figure 1.
228
+ Interventions
229
+ Baseline HRV was recorded for 5 min. Subsequently, HRV was
230
+ recorded for 10 min while the individual was exposed to the
231
+ Indian raga Bhupali and again it was recorded for 5 min post
232
+ exposure to music.
233
+ Indian raga
234
+ We used two pieces of melody in the raga Bhupali. The songs
235
+ are popular classical-based film music — a.Jyoti Kalash Jhalake
236
+ played in the confluence of three instruments, the sitar (Sunil
237
+ Das), flute (Rakesh Chaurasia), and santoor (Ulhas Bapat) and
238
+ b.Pankh Hoto Uda Aatire flute rendition by Praveen Gorkhindi.
239
+ Pop music
240
+ The term “pop” is originally derived from an abbreviation of
241
+ “popular.” It borrows elements from other preexisting musical
242
+ styles, which include urban, dance, Latin, rock, and country.[15] In
243
+ general, college students prefer them since it invokes the feeling
244
+ of excitement.
245
+ We used Electro pop beat — a. “Can’t Keep Me Away”
246
+ by Chinchilla Music Production and b. K-391 - Sky City 2013
247
+ by K-391. Both the pieces of music use synthesizers and various
248
+ electronic musical instruments.
249
+ Assessment
250
+ HRV was recorded by using Biopac MP 100 (Biopac Systems
251
+ Inc., 42 Aero Camino, Goleta, CA 93117, USA) and analyzed
252
+ by Kubios HRV 2.00 software (Biosignal Analysis and Medical
253
+ Imaging Group, University of Eastern Finland). The HRV
254
+ power spectrum was obtained using Fast Fourier Transform
255
+ (FFT) analysis. The energy in the HRV series in the following
256
+ Pre 5 min
257
+ During Indian raga 10 min
258
+ Post 5 min
259
+ D1 (5 min)
260
+ D2 (5 min)
261
+ Pre 5 min
262
+ During pop music 10 min
263
+ Post 5 min
264
+ D1 (5 min)
265
+ D2 (5 min)
266
+ Pre 5 min
267
+ During no music or silence 10 min
268
+ Post 5 min
269
+ D1 (5 min)
270
+ D2 (5 min)
271
+ Figure 1: Schematic representation of study design — D1 indicates
272
+ during1; D2 during 2
273
+ [Downloaded free from http://www.heartindia.net on Thursday, July 28, 2016, IP: 14.139.155.82]
274
+ Nagarajan, et al.: Autonomic variables with Indian melody
275
+ 96
276
+ Heart India, Vol 3 / Issue 4 / Oct-Dec 2015
277
+ specific frequency bands studied viz., low frequency (LF) band
278
+ (0.05-0.15 Hz) and high frequency (HF) band (0.15-1.50 Hz)
279
+ and the LF/HF ratio. The low frequency and high frequency
280
+ band values were expressed as normalized units. The following
281
+ components of time domain HRV were analyzed: (i) Mean
282
+ HR (average number of times your heart beats in one minute),
283
+ (ii) RMSSD (root mean square of successive differences) and
284
+ (iii) NN50 (the number of interval differences of successive
285
+ NN intervals greater than 50 ms). Secondarily, we correlated
286
+ autonomic responses to musical stimuli with the anxiety level
287
+ before and after each music style and also for “silence” or
288
+ “no music” session. The State and Trait Anxiety Inventory
289
+ (STAI) was used to assess anxiety.[16] The STAI consists of
290
+ 40 items divided into two components X1 and Y1, these
291
+ two components assess state and trait anxiety respectively in
292
+ both clinical and non clinical populations. We have used X1
293
+ component of STAI to assess state anxiety. Scores for both
294
+ scales range between 20 (low anxiety) and 80 (high anxiety).[17]
295
+ The perceived feeling was measured using the visual analog scale
296
+ (VAS). The VAS consists of a horizontal 10-cm line with one
297
+ end representing the maximum and the other end representing
298
+ the minimum of the variable to be measured.[18] The right
299
+ anchor of the scale was identified as “feeling very good” and
300
+ the left anchor was labeled “feeling not good” as in Figure 2.
301
+ Participants indicated their state of feeling by marking a point
302
+ after the experimentation.
303
+ Data analysis
304
+ Data were analyzed using SPSS for Windows, Version 16.0.
305
+ Chicago, SPSS Inc. Released 2007. There were separate repeated
306
+ measures of analyses of variance (ANOVAs) for each of the
307
+ assessments, with four within-subjects factors [i.e., states (before,
308
+ during 1, during 2, and after) and sessions (raga, pop, and silence)].
309
+ Post hoc analysis was with Bonferroni adjustment, comparing after
310
+ with before values.
311
+ RESULTS
312
+ Cardiac measures
313
+ The group mean values ± standard deviation (SD) and the
314
+ percentage change pre versus post for frequency domain
315
+ measures of HRV spectrum for LF, HF, and LF/HF, and time
316
+ domain measures of mean HR, RMSSD, and NN50 in three
317
+ sessions (raga, pop, and silence) in pre, during, and post states are
318
+ given in Tables 1 and 2, respectively. Figures 3 and 4 shows the
319
+ trend of percentage change shown in frequency domain measures
320
+ and time domain measures of HRV spectrum respectively,
321
+ recorded post the Indian raga session and two control sessions
322
+ of pop music and silence.
323
+ Analysis of variance
324
+ The significant changes in both frequency and time domain
325
+ measures in thre sessions are given in Table 3.
326
+ Post hoc analyses with bonferroni adjustment
327
+ Post hoc analyses with Bonferroni adjustment were performed
328
+ and all comparisons were made with the respective “pre” states
329
+ summarized in Table 4.
330
+ In summary, there was a significant decrease in LF (P < 0.01)
331
+ and mean HR (P < 0.01) after the raga session compared to the
332
+ preperiod. There was a significant increase in HF (P < 0.01), NN50
333
+ (P < 0.05), and RMSSD (P < 0.05) after the raga session compared
334
+ to the preperiod. There was a significant decrease in HF (P < 0.05)
335
+ and NN 50 (P < 0.05) during the pop session compared to the
336
+ prestates. The anxiety level significantly (P < 0.001) decreased post
337
+ the raga session as summarized in Table 5. There was a significant
338
+ increase in state anxiety level (P < 0.01) after the pop Session.
339
+ The subjective assessment of perceived feeling using the VAS
340
+ comparing raga with pop and silence sessions showed a significant
341
+ positive difference (P < 0.01) as summarized in Table 6.
342
+ Figure 3: The trend of percentage change shown in the frequency
343
+ domain measures of heart rate variability spectrum recorded post the
344
+ Indian raga session and two control sessions of pop music and silence
345
+ Figure 4: The trend in arrows and percentage change shown in time
346
+ domain measures of heart rate variability spectrum recorded post the
347
+ Indian raga session and two control sessions of pop music and silence
348
+ Figure 2: Visual analog scale
349
+ [Downloaded free from http://www.heartindia.net on Thursday, July 28, 2016, IP: 14.139.155.82]
350
+ Nagarajan, et al.: Autonomic variables with Indian melody
351
+ 97
352
+ Heart India, Vol 3 / Issue 4 / Oct-Dec 2015
353
+ Psychological stress measures
354
+ The anxiety level before and after the sessions of raga, pop, and
355
+ silence or no music was assessed using the STAI.
356
+ VAS — Visual analog scale
357
+ The perceived feeling was measured using VAS for all the
358
+ participants following raga, pop, and Silence. Repeated measures
359
+ of ANOVA were performed with one “within-subjects” factor,
360
+ i.e., raga, pop, and silence sessions.
361
+ DISCUSSION
362
+ The present study examined the changes in subjective and
363
+ psychophysiological responses to the Indian raga Bhupali, pop
364
+ music, and no music conditions. The perceived relaxation induced
365
+ by Indian raga was shown in both frequency domain and time
366
+ domain measures of HRV.
367
+ The LF (normalized units) component significantly decreased
368
+ and correspondingly HF component significantly increased
369
+ Table 2: Time domain measures for 3 sessions in 4 states for mean HR, RMSSD, and NN50, and the percentage
370
+ change (pre versus post)a
371
+ Measures
372
+ Sessions
373
+ Pre
374
+ During 1
375
+ During 2
376
+ Post
377
+ % change
378
+ Mean HR
379
+ Raga
380
+ 80.71±11.04
381
+ 79.789.99
382
+ 79.10±9.74
383
+ 77.68±9.86**
384
+ 3.76 ↓
385
+ Pop
386
+ 80.32±10.64
387
+ 80.61±10.65
388
+ 80.86±10.81
389
+ 79.54±11.50
390
+ 0.98 ↓
391
+ Silence
392
+ 79.89±8.65
393
+ 79.03±8.42
394
+ 78.61±8.46
395
+ 78.68±7.96
396
+ 1.52 ↓
397
+ RMSSD
398
+ Raga
399
+ 50.46±28.28
400
+ 54.61±31.30
401
+ 58.89±35.46
402
+ 59.89 ±29.36*
403
+ 18.68 ↑
404
+ Pop
405
+ 56.11±34.23
406
+ 49.50±28.41
407
+ 47.32±21.99
408
+ 47.5 23.39
409
+ 15.28 ↓
410
+ Silence
411
+ 51.36±34.51
412
+ 50.46 ±39.24
413
+ 50.89±35.35
414
+ 50.21±28.97
415
+ 2.22 ↓
416
+ NN50
417
+ Raga
418
+ 84.32±67.46
419
+ 98.25±73.26
420
+ 102.61±73.01
421
+ 108.28±69.29*
422
+ 28.41 ↑
423
+ Pop
424
+ 93.86±62.81
425
+ 78.86±62.45
426
+ 84.11±64.76*
427
+ 85.4359.92
428
+ 8.98 ↓
429
+ Silence
430
+ 92.61±68.70
431
+ 81.71±69.04
432
+ 91.96±63.16
433
+ 86.86±66.76
434
+ 6.2 ↓
435
+ SD: Standard deviation, HR: Heart rate, aValues are group mean ± SD, *P < 0.05, **P < 0.01, ***P < 0.001, ↑: Increase, ↓: Decrease
436
+ Table 3: Summary of ANOVA showing statistically significant results
437
+ Variables
438
+ Factor
439
+ F value
440
+ DF
441
+ Huynh-Feldt epsilon
442
+ Level of significance
443
+ HF
444
+ Session
445
+ 3.493
446
+ (2,54)
447
+ 1.000
448
+ P<0.05
449
+ HF
450
+ Sessions*states
451
+ 3.420
452
+ (4.99, 134.721)
453
+ 0.832
454
+ P<0.01
455
+ LF
456
+ Sessions
457
+ 3.579
458
+ (2,54)
459
+ 1.000
460
+ P<0.05
461
+ LF
462
+ Session*states
463
+ 3.792
464
+ (5.21,140.70)
465
+ 0.869
466
+ P<0.01
467
+ Mean HR
468
+ States
469
+ 7.922
470
+ (2.249, 60.719)
471
+ 0.750
472
+ P<0.01
473
+ Mean HR
474
+ Session*states
475
+ 2.461
476
+ (69.054, 131.368)
477
+ 0.811
478
+ P<0.01
479
+ NN50
480
+ Session*states
481
+ 3.795
482
+ (6,162)
483
+ 1.000
484
+ P<0.01
485
+ ANOVA: Analysis of variance, HF: High frequency, LF: Low frequency, HR: Heart rate
486
+ Table 4: Significant results of post hoc analysis where
487
+ the arrows show the direction of changes
488
+ Variable
489
+ Session
490
+ During 1
491
+ During 2
492
+ Post
493
+ LF
494
+ Raga
495
+ NS
496
+ NS
497
+ P>0.01 ↓
498
+ HF
499
+ Raga
500
+ NS
501
+ NS
502
+ P<0.01 ↑
503
+ HF
504
+ Pop
505
+ NS
506
+ P<0.05 ↓
507
+ NS
508
+ Mean HR
509
+ Raga
510
+ NS
511
+ NS
512
+ P< 0.01 ↓
513
+ NN 50
514
+ Raga
515
+ NS
516
+ NS
517
+ P<0.05 ↑
518
+ NN 50
519
+ Pop
520
+ NS
521
+ P>0.05 ↓
522
+ NS
523
+ RMSSD
524
+ Raga
525
+ NS
526
+ NS
527
+ P<0.05 ↑
528
+ NS: Not significant, ↑: Increase, ↓: Decrease, HF: High frequency,
529
+ LF: Low frequency
530
+ Table 1: Frequency domain measures for 3 sessions in 4 states for LF, HF, and LF/HF with a percentage change for
531
+ (pre versus post)a
532
+ Measures
533
+ Sessions
534
+ Pre
535
+ During 1
536
+ During 2
537
+ Post
538
+ % change
539
+ Low frequency
540
+ (LF) Power
541
+ (n.u.)
542
+ Raga
543
+ 50.29±19.95
544
+ 42.44±19.09
545
+ 43.60±16.0
546
+ 42.82±18.79**
547
+ 14.85 ↓
548
+ Pop
549
+ 47.11±19.50
550
+ 53.49±18.79
551
+ 54.62±17.65
552
+ 48.12±18.06
553
+ 2.13 ↑
554
+ Silence
555
+ 49.72±20.31
556
+ 50.81±21.46
557
+ 50.56±19.54
558
+ 54.20±19.81
559
+ 8.98 ↑
560
+ High frequency
561
+ (HF) Power
562
+ (n.u.)
563
+ Raga
564
+ 49.52±19.97
565
+ 57.34±19.13
566
+ 56.20±15.93
567
+ 57.06±18.81**
568
+ 15.21 ↑
569
+ Pop
570
+ 52.65±19.58
571
+ 48.35±19.04
572
+ 44.74±17.34*
573
+ 51.69±17.99
574
+ 1.82 ↓
575
+ Silence
576
+ 50.15±20.29
577
+ 48.89±21.39
578
+ 49.32±19.49
579
+ 45.41±19.53
580
+ 9.45 ↓
581
+ LF/HF Ratio
582
+ Raga
583
+ 1.57±1.99
584
+ .89±.83
585
+ .71±.60
586
+ .89±.99
587
+ 43.31 ↓
588
+ Pop
589
+ 2.46±7.03
590
+ 1.75±1.29
591
+ 1.89±2.35
592
+ 1.57±2.38
593
+ 36.18 ↓
594
+ Silence
595
+ 2.64 ±6.91
596
+ 3.1±8.32
597
+ 2.93±8.51
598
+ 2.54±5.94
599
+ 10.72 ↓
600
+ SD: Standard deviation, aValues are group mean ± SD, *P < 0.05, **P < 0.01, ***P < 0.001, ↑: Increase, ↓: Decrease
601
+ [Downloaded free from http://www.heartindia.net on Thursday, July 28, 2016, IP: 14.139.155.82]
602
+ Nagarajan, et al.: Autonomic variables with Indian melody
603
+ 98
604
+ Heart India, Vol 3 / Issue 4 / Oct-Dec 2015
605
+ immediately after listening to the Indian raga Bhupali. This was
606
+ indicative of reduced arousal and a shift in the autonomic balance
607
+ toward parasympathetic dominance. There was a decrease in
608
+ the LF/HF ratio, which was not statistically significant. The
609
+ LF/HF ratio is correlated with sympathovagal balance.[19] The
610
+ LF component of the HRV is mainly related to sympathetic
611
+ activation when expressed in normalized units,[20] whereas afferent
612
+ vagal activity is a major contributor to the HF component.
613
+ Apart from this, there was a significant decrease in the HF
614
+ component during pop music, indicative of an increase in cardiac
615
+ sympathetic activity.[21]
616
+ In the time domain measures, there was a significant increase in
617
+ RMSSD and NN50. These indices reflect short-term variation
618
+ and are correlated with the HF power or the parasympathetic
619
+ activity.[22] There was a significant decrease in the mean HR.
620
+ As described above, most of the changes immediately after
621
+ listening to Indian raga were indicative of reduced activity in the
622
+ different subdivisions of sympathetic nervous system though
623
+ some variables are regulated by several factors. The HR, for
624
+ example, is regulated by twofold innervations (sympathetic and
625
+ parasympathetic), as well as humoral factors.[23]
626
+ This makes the decrease in HR complex to interpret (i.e., it could
627
+ be due to increased vagal tone or due to sympathetic withdrawal).
628
+ This also applies to HRV components. On the contrary, there was
629
+ a significant decrease in NN50 of the frequency domain measure
630
+ during pop session, which reflects sympathetic activation.
631
+ Collectively, the results suggest that the immediate effect of
632
+ listening to Indian raga Bhupali is associated with changes in the
633
+ autonomic nervous system suggesting vagal control.
634
+ This was also correlated with significant reduction in the anxiety
635
+ level assessed using the STAI and subjective feeling of the
636
+ session. Cardiac vagal tone has been proposed as a stable
637
+ biological marker for the ability to sustain attention and regulate
638
+ emotion.[24]
639
+ Possible mechanism
640
+ Previous studies have demonstrated particular profiles of
641
+ autonomic responses on different styles of music. This has
642
+ prompted the need to explore the effects of Indian raga, which
643
+ has the effect of instilling positive emotions within the listener
644
+ before it can be proposed as an effective music therapy.
645
+ The factors which reflect an emotional and effective response
646
+ to music are soothing and relaxing music, urban factors such
647
+ Table 5: State Trait Anxiety (STAI) in conditions of Indian raga, pop music, and silencea
648
+ Variable
649
+ Indian Raga
650
+ Pop music
651
+ Silence
652
+ Pre
653
+ Post
654
+ % change
655
+ P value
656
+ Pre
657
+ Post
658
+ % change
659
+ P Value
660
+ Pre
661
+ Post
662
+ % change
663
+ P value
664
+ STAI 28
665
+ 34.00±10.50
666
+ 28.32±7.12
667
+ ↓16.71
668
+ 0.000***
669
+ 31.11±7.98
670
+ 35.43±8.66
671
+ 13.89↑
672
+ 0.003**
673
+ 33.39±9.16
674
+ 32.61±11.68
675
+ 2.34↓
676
+ 0.637
677
+ *P < 0.05, **P < 0.01, ***P < 0.001, ↑ = Increase, ↓: Decrease, SD: Standard deviation, aValues are group mean ± SD
678
+ Table 6: Scores on visual analog scale following raga,
679
+ pop, and silencea
680
+ Sessions
681
+ Raga
682
+ Pop
683
+ Silence
684
+ Mean±SD
685
+ 8.14±1.32
686
+ 6.46±2.20**
687
+ 6.64±1.98**
688
+ SD: Standard deviation, aValues are group mean ± SD
689
+ [Downloaded free from http://www.heartindia.net on Thursday, July 28, 2016, IP: 14.139.155.82]
690
+ Nagarajan, et al.: Autonomic variables with Indian melody
691
+ 99
692
+ Heart India, Vol 3 / Issue 4 / Oct-Dec 2015
693
+ as rhythm and percussion, sophisticated factors, which include
694
+ classical music, an intense factor such as loudness, forceful and
695
+ energetic music, and campestral factor comprising country
696
+ and folk songs.[25] We were confident that this stimulus had a
697
+ stress-reducing capacity independent of individual preferences
698
+ because of the combination of the notes, the aesthetic mood
699
+ it instills while listening, the slow tempo, and the popularity of
700
+ the piece of music we used. The point to be noted here is that
701
+ using researcher-selected music stimuli have been shown to have
702
+ greater effects on stress reduction than music stimuli selected by
703
+ the subjects themselves.[26]
704
+ In general, rock music is preferred by contemporary college
705
+ students and heavy metal is mostly preferred by adolescent boys.
706
+ Concerns have been raised regarding psychological, emotional,
707
+ behavioral, and physical effects associated with this music
708
+ preference.[27] Study taking self-report reasons for pop music
709
+ preference revealed that characteristics such as the melody, mood,
710
+ rhythm, and lyrics of a selection were the important reasons for
711
+ preference.[28] But the results in one of the studies indicated that
712
+ the dominant factor affecting emotional response was the music
713
+ type (either relaxing or stimulating) and not preference.[29] In one
714
+ of the studies, the stimulating music aroused feelings of vigor
715
+ and tension more than the calming music while sedative music
716
+ eased tension. Favorite music, regardless of music type, lowered
717
+ subjective tension. Physiological responses (HR, respiration,
718
+ and blood pressure) were greater during stimulating music than
719
+ during calming music. Music preference did not, however, affect
720
+ the physiological responses.[30]
721
+ Passive listening to music accelerates breathing rate and increases
722
+ blood pressure, HR, and the LF: HF ratio (thus suggesting
723
+ sympathetic activation) proportional to the tempo and perhaps
724
+ to the complexity of the rhythm.[31] Slow tempo with soothing
725
+ notes may have had helped in parasympathetic activation, which
726
+ is shown in our study. Pop music with steady beats may have
727
+ increased sympathetic activation.
728
+ Comparison with previous studies
729
+ of music and heart rate variability
730
+ There was a differential influence of music-listening on
731
+ autonomic activity; it was observed that music resulted in a faster
732
+ autonomic recovery after stress compared to the control groups.
733
+ [32] The results showed that acute exposure to classical baroque
734
+ music reduced the sympathetic tone of the heart while excitatory
735
+ heavy metal music decreased the variability of the HR.[33] The
736
+ techno music with steady beats was associated with a significant
737
+ increase in HR, systolic blood pressure, and significant changes
738
+ in self-rated emotional states.[29] The effect of trophotropic
739
+ (relaxing) music on HR and HRV was investigated. The results
740
+ showed that relaxing music (Bach, Vivaldi, and Mozart) resulted
741
+ in a significant reduction of HR. The significance of these
742
+ results might be relevant for the use of music in coronary heart
743
+ disease is also discussed.[34] Listening to soft music and inhaling
744
+ Citrus bergamia essential oil (aroma therapy) was found to be an
745
+ effective method of relaxation, as indicated by a shift of the
746
+ autonomic balance toward parasympathetic activity in young
747
+ healthy individuals.[35] In comparison, our results correlated with
748
+ previous studies where the soothing effect of Indian raga showed
749
+ similar effects as that of Vivaldi, Mozart, and Bach. Pop music
750
+ with steady beats increased sympathetic activation.
751
+ CONCLUSION
752
+ The present study results suggested the importance of the
753
+ aesthetic mood of music in altering autonomic responses and
754
+ reducing the anxiety levels. This has also helped in recognizing
755
+ the mechanism through which Indian music may affect the
756
+ physiological change by instilling a particular aesthetic mood
757
+ within the listener. The Indian raga Bhupali may be effectively
758
+ used in cardiac regulation and may also facilitate recovery
759
+ from poststress anxiety suggestive of applications in clinical
760
+ settings. In general, knowledge of musical elements will help
761
+ the participants to appreciate and willfully submit to the musical
762
+ composition. In our study, the participants were from different
763
+ ethnic groups and not all of them had musical training or the
764
+ knowledge of the elements of Indian music. In spite of this
765
+ factor, the musical stimulus has brought about positive changes.
766
+ The study may be extended to various other Indian ragas in
767
+ the above applied areas by identifying sensitive physiological
768
+ variables.
769
+ Respiratory rate is also influenced by the autonomic nervous
770
+ system but we did not measure the respiratory rate during the
771
+ sessions. This accounted for a limitation in our study.
772
+ Acknowledgements
773
+ The authors gratefully acknowledge Dr. Hariprasad V R, Dr.
774
+ Kashinath Metri and Dr Raghavendra Bhat for their guidance
775
+ and Dr. Balram Pradhan for his help in Statistical Analysis.
776
+ Financial support and sponsorship
777
+ Nil.
778
+ Conflicts of interest
779
+ There are no conflicts of interest.
780
+ REFERENCES
781
+ 1.
782
+ Perez-Lloret S, Diez J, Domé MN, Delvenne AA, Braidot N,
783
+ Cardinali DP, et al. Effects of different “relaxing” music styles on
784
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+ 2.
786
+ Christopher SC, Sharma H. Ayurvedic Healing: Contemporary
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+ Maharishi Ayurveda Medicine and Science. USA and UK: Singling
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+ Dragon and imprint of Jessica Kingsley Publishers; 2012. p. 291.
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+ 3.
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+ Sharma M. Special Education Music Therapy. New Delhi: S B Nangia
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+ for APH Publishing Corporation; 2007. p. 120.
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+ 4.
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+ Murrock CJ, Higgins PA. The theory of music, mood and movement
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+ Chaitanya DB. An Introduction to Indian Music. Government of
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+ India: Bigamudre Chaitanya Deva Publications Division, Ministry of
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+ Information and Broadcasting; 1973. p. 13, 24.
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+ 6.
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+ Karuna N, Srinivasan TM, Nagendra HR. Review of Rāgās and its
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+ Rasās in Indian music and its possible applications in therapy. Int J
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+ Yoga - Philosop Psychol Parapsychol 2013;1:21-8.
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+ Shobhana N. Bhatkhande’s Contribution to Music: A Historical
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+ Perspective. Bombay: Popular Prakashana; 1989. p. 159.
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+ 8.
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+ Marchand P, Johari H. The Yoga of the Nine Emotions: The Tantric
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+ Practice of Rasa Sadhana. India: Inner Traditions/Bear & Co.; 2006. p. 34.
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+ Radhakamal M. “Rasas” as Springs of Art in Indian Aesthetics. J
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+ Aesthet Art Crit 1965;24:91-6.
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+ Juslin PN, Västfjäll D. Emotional responses to music: The need to
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+ consider underlying mechanisms. Behav Brain Sci 2008;31:559-621.
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+ Tugade MM, Fredrickson BL, Barrett LF. Psychological resilience and
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+ Bec JH. Encyclopedia of Percussion. New York: Taylor & Francis
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+ Group; 2007. p. 184.
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+ Rojek C. Pop Music, Pop Culture. USA: Polity Press; 2011. p. 2.
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+ Laux L, Glanzmann P, Schaffner P, Spielberger CD. Das State-Trait-
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+ Angstinventar. Theoretische Grundlagen und Handanweisungen.
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+ Spielberger CD, Gorsuch RL, Lushene RE. STAI, Manual for the
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+ State-Trait-Anxiety-Inventory. Palo Alto: Consulting Psychologist
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+ 18.
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+ Wewers ME, Lowe NK. A critical review of visual analogue scales in the
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+ measurement of clinical phenomena. Res Nurs Health 1990;13:227-36.
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+ Malliani A, Pagani M, Lombardi F, Cerutti S. Cardiovascular
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+ neural regulation explore in the frequency domain. Circulation
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+ 1991;84:482-92.
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+ 20.
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+ Heart rate variability: Standards of measurement, physiological
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+ interpretation and clinical use. Task Force of the European Society
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+ of Cardiology and the North American Society of Pacing and
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+ Electrophysiology. Circulation 1996;93:1043-65.
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+ 21.
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+ Billman GE. The LF/HF ratio does not accurately measure cardiac
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+ sympatho-vagal balance. Front Physiol 2013;4:26.
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+ 22.
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+ Kim DH,  Lipsitz LA,  Ferrucci L, Varadhan R, Guralnik JM,
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+ Carlson  MC, et al. Association between reduced heart rate
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+ variability and cognitive impairment in older disabled women in
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+ the community: Women’s Health and Aging Study I. J Am Geriatr
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+ Soc 2006;54:1751-7.
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+ Andreassi JL. Psychophysiology: Human Behavior and Physiological
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+ Response. Mahwah, NJ: Lawrence Earl Baum Associates; 2007.
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+ physiological regulation of emotions. Monogr Soc Res Child Dev
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+ 1994;59:167-86.
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+ Rentfrow PJ, Goldberg LR, Levitin DJ. The structure of musical
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+ preference: A five-factor model. J Pers Soc Psychol 2011;100:1139-57.
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+ 26.
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+ Pelletier CL. The effect of music on decreasing arousal due to stress:
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+ A meta-analysis. J Music Ther 2014;41:192-214.
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+ 27.
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+ Milton EB, Michael WF, Chi-en H,  David M, Fleetwood KL,
880
+ Gregory TD. Schwab effects of listening to heavy metal music on
881
+ college women: A pilot study. Coll Stud J 2008;42:24-35.
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+ 28.
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+ Boyle JD, Hesterman HL, Ramsey DS. Factors influencing pop music
884
+ preferences of young people. J Res Music Educ 1981;29:47-55.
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+ 29.
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+ Gerra G, Zaimovic A, Franchini D, Palladino M, Giucastro G, Reali N,
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+ et al. Neuroendocrine responses of healthy volunteers to ‘techno-
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+ music’: Relationships with personality traits and emotional state. Int
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+ J Psychophysiol 1998;28:99-111.
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+ 30.
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+ Iwanaga M, Kobayashi A, Kawasaki C. Heart rate variability with
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+ repetitive exposure to music. Biol Psychol 2005;70:61-6.
893
+ 31.
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+ Bernardi L, Porta C, Sleight P. Cardiovascular, Cerebrovascular, and
895
+ respiratory changes induced by different types of music in musicians
896
+ and non-musicians: The importance of silence. Heart 2006;92:445-52.
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+ 32.
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+ Thoma MV, La Marca R, Brönnimann R, Finkel L, Ehlert U, Nater
899
+ UM. The effect of music on the human stress response. PLoS One
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+ 2013;8:e70156.
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+ da Silva SA, Guida HL, Dos Santos Antonio AM, de Abreu LC,
903
+ Monteiro CB, Ferreira C, et al. Acute auditory stimulation with
904
+ different styles of music influences cardiac autonomic regulation in
905
+ men. Int Cardiovasc Res J 2014;8:105-10.
906
+ 34.
907
+ Escher J, Evéquoz D. Music and heart rate variability. Study of the
908
+ effect of music on heart rate variability in healthy adolescents. Praxis
909
+ (Bern 1994) 1999;88:951-2.
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+ Peng SM, Koo M, Yu ZR. Effects of music and essential oil inhalation
912
+ on cardiac autonomic balance in healthy individuals. J Altern
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+ Complement Med 2009;15:53-7.
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+ [Downloaded free from http://www.heartindia.net on Thursday, July 28, 2016, IP: 14.139.155.82]
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1
+ Accepted Manuscript
2
+ Title: Immediate Effect of Hot Chest Pack on
3
+ Cardio-Respiratory Functions in Healthy Volunteers: A
4
+ Randomized Cross-Over Study
5
+ Author: Thoudam Manjuladevi A. Mooventhan N.K.
6
+ Manjunath
7
+ PII:
8
+ S2212-9588(17)30057-5
9
+ DOI:
10
+ https://doi.org/doi:10.1016/j.aimed.2017.12.006
11
+ Reference:
12
+ AIMED 140
13
+ To appear in:
14
+ Received date:
15
+ 16-6-2017
16
+ Revised date:
17
+ 28-12-2017
18
+ Accepted date:
19
+ 29-12-2017
20
+ Please cite this article as: Manjuladevi T, Mooventhan A, Manjunath NK,
21
+ Immediate
22
+ Effect
23
+ of
24
+ Hot
25
+ Chest
26
+ Pack
27
+ on
28
+ Cardio-Respiratory
29
+ Functions
30
+ in
31
+ Healthy Volunteers: A Randomized Cross-Over Study, Adv. Integr. Med. (2017),
32
+ https://doi.org/10.1016/j.aimed.2017.12.006
33
+ This is a PDF file of an unedited manuscript that has been accepted for publication.
34
+ As a service to our customers we are providing this early version of the manuscript.
35
+ The manuscript will undergo copyediting, typesetting, and review of the resulting proof
36
+ before it is published in its final form. Please note that during the production process
37
+ errors may be discovered which could affect the content, and all legal disclaimers that
38
+ apply to the journal pertain.
39
+ Page 1 of 22
40
+ Accepted Manuscript
41
+ 1
42
+
43
+ Immediate Effect of Hot Chest Pack on Cardio-Respiratory Functions in Healthy Volunteers: A
44
+ 1
45
+ Randomized Cross-Over Study
46
+ 2
47
+ Thoudam Manjuladevi,1 A. Mooventhan,2 NK Manjunath3
48
+ 3
49
+ 1Department of Yoga and Naturopathy, The School of Yoga and Naturopathic Medicine, S-
50
+ 4
51
+ VYASA University, Bengaluru, Karnataka, India
52
+ 5
53
+ 2Senior medical officer, Department of Yoga, Center for Integrative Medicine and Research
54
+ 6
55
+ (CIMR), All India Institute of Medical Sciences (AIIMS), New Delhi, India
56
+ 7
57
+ 3Professor, Division of Yoga and Life Sciences, and Head, Department of Research and
58
+ 8
59
+ Development, S-VYASA University, Bengaluru, Karnataka, India
60
+ 9
61
+ Corresponding Author:
62
+ 10
63
+ Dr. A. Mooventhan,
64
+
65
+ 11
66
+ Senior medical officer, Department of Yoga, Center for Integrative Medicine and Research
67
+ 12
68
+ (CIMR), All India Institute of Medical Sciences (AIIMS), New Delhi, India
69
+ 13
70
+ Mobile: +91 9844457496
71
+ 14
72
+ E-mail: [email protected]
73
+ 15
74
+ Number of words
75
+ 16
76
+ • Abstract
77
+ : 238
78
+ 17
79
+ • Text
80
+
81
+ :2304
82
+ 18
83
+ Figures
84
+
85
+ : 2
86
+ 19
87
+ Tables
88
+
89
+ : 2
90
+ 20
91
+
92
+ 21
93
+ Page 2 of 22
94
+ Accepted Manuscript
95
+ 2
96
+
97
+ Immediate effect of hot chest pack on cardio-respiratory functions in healthy volunteers: A
98
+ 1
99
+ randomized cross-over study
100
+ 2
101
+ ABSTRACT:
102
+ 3
103
+ Background: Chest pack is one of the common hydrotherapeutic procedures. Though hot chest
104
+ 4
105
+ pack (HCP) is commonly employed to improve various cardio-respiratory problems, there is no
106
+ 5
107
+ scientific report validating its effect on either cardiovascular or respiratory functions. The current
108
+ 6
109
+ study is first of its kind, conducted to evaluate the effect of cardio-respiratory functions in
110
+ 7
111
+ healthy volunteers.
112
+ 8
113
+ Materials and Methods: Thirty healthy female volunteers with the age range of 18-24 years
114
+ 9
115
+ were recruited and randomly divided into 2-groups. Subjects of both the groups underwent 20-
116
+ 10
117
+ minutes each of HCP (study session) and supine rest (control session) sessions in 2-different
118
+ 11
119
+ orders. In the first group, 15 subjects underwent HCP on day-1 and SR on day-2, while in the
120
+ 12
121
+ second group the order of intervention was reversed. Assessments were taken before and after
122
+ 13
123
+ each session. Statistical analysis was performed using statistical package for the social sciences,
124
+ 14
125
+ version 16.
126
+ 15
127
+ Results: A significant reduction in systolic blood pressure was observed both in study and
128
+ 16
129
+ control sessions. However, a significant reduction in diastolic blood pressure, mean arterial
130
+ 17
131
+ pressure, pulse rate, rate pressure product (RPP) and double product (Do-P) along with a
132
+ 18
133
+ significant improvement in peak expiratory flow rate was observed only in the study session
134
+ 19
135
+ unlike control session. Moreover, reduction in RPP and Do-P was better in study session than in
136
+ 20
137
+ the control session.
138
+ 21
139
+ Page 3 of 22
140
+ Accepted Manuscript
141
+ 3
142
+
143
+ Conclusion: Results of this study suggest that 20 minutes of HCP might be effective in
144
+ 1
145
+ improving cardio-respiratory functions of healthy volunteers.
146
+ 2
147
+ Keywords: Blood pressure; Cardiovascular functions; Chest Pack; Hydrotherapy; Naturopathy;
148
+ 3
149
+ Respiratory functions.
150
+ 4
151
+ BACKGROUND:
152
+ 5
153
+ Cardiovascular functions are controlled by neural factors as well as other factors like temperature
154
+ 6
155
+ and hormones. Of these, the autonomic nervous system (ANS) which is a part of neural factor
156
+ 7
157
+ plays a major role in maintaining and regulating cardiac functions, e.g. systolic blood pressure
158
+ 8
159
+ (SBP), diastolic blood pressure (DBP) and heart rate (HR). Imbalances in these lead to
160
+ 9
161
+ cardiovascular disorders such as hypertension, ischemia and infarction.[1] Cardiovascular
162
+ 10
163
+ diseases (CVD) are the main cause of mortality worldwide[2] and the leading cause of death for
164
+ 11
165
+ both men and women.[3] CVD is strongly associated with lifestyle, especially the use of tobacco,
166
+ 12
167
+ unhealthy diet habits, physical inactivity and psychosocial stress. The World Health
168
+ 13
169
+ Organization has stated that over three-quarters of the deaths from CVD could be prevented with
170
+ 14
171
+ adequate changes in lifestyle.[2] Thus, lifestyle modifications are important factors in the
172
+ 15
173
+ treatment, prevention and rehabilitation of cardiovascular disorders.[1]
174
+ 16
175
+ Naturopathy is a science of health and healthy living[4] emphasizing on the holistic approach as
176
+ 17
177
+ compared to the compartmental approach,[5] achieved by inculcating healthy lifestyle in
178
+ 18
179
+ accordance with the laws of Nature.[4] The said objective is achieved by proper use of different
180
+ 19
181
+ constituents of naturopathy like hydrotherapy, diet therapy, fasting therapy, mud therapy, helio
182
+ 20
183
+ therapy, and air therapy individually or in combination.[6] Various studies have evaluated the
184
+ 21
185
+ usefulness of Naturopathy intervention (alone or in combination with other therapies) for various
186
+ 22
187
+ Page 4 of 22
188
+ Accepted Manuscript
189
+ 4
190
+
191
+ diseases
192
+ including
193
+ bronchial
194
+ asthma,[5,7,8]
195
+ systemic
196
+ lupus
197
+ erythematosus,[9]
198
+ cervical
199
+ 1
200
+ spondylosis,[10] rheumatoid arthritis alone[11] and with type 2 diabetes and primary
201
+ 2
202
+ hypertension,[12]
203
+ type
204
+ 2
205
+ diabetes
206
+ mellitus,[13]
207
+ metabolic
208
+ syndrome,[14,15]
209
+ acquired
210
+ 3
211
+ immunodeficiency syndrome[16] etc.
212
+ 4
213
+ In hydrotherapy, water in any of its forms (like ice, water, and steam/hot air) is used
214
+ 5
215
+ externally/internally for the promotion of health or the treatment of various diseases.[6,17,18]
216
+ 6
217
+ Previous studies have reported ice application to head and spine in healthy individuals, resulting
218
+ 7
219
+ in a significant reduction in SBP, DBP, pulse pressure (PP), mean arterial pressure (MAP), rate
220
+ 8
221
+ pressure product (RPP), double product (Do-P)[18] and HR while significantly improving heart
222
+ 9
223
+ rate variability (HRV) towards vagal dominance.[6] Whereas, head-out warm water immersion
224
+ 10
225
+ was shown to increases HR and decreases SBP and DBP.[19] Likewise, Sauna therapy (hot air)
226
+ 11
227
+ was reported to produce increase in left ventricular ejection fraction, improvement in flow
228
+ 12
229
+ mediated dilation and increase in number of circulating CD34+ cells and reduction in plasma
230
+ 13
231
+ levels of nor-epinephrine and brain natriuretic peptide.[20] Also through sauna therapy increase in
232
+ 14
233
+ endothelial nitric oxide synthase activity and improve cardiac function in heart failure cases has
234
+ 15
235
+ been observed.[21] Sauna therapy was also reported to cause reduction in total and low density
236
+ 16
237
+ lipoprotein (LDL) cholesterol concentration while at the same time increasing high density
238
+ 17
239
+ lipoprotein (HDL) cholesterol.[22]
240
+ 18
241
+ Chest pack, a commonly employed hydrotherapeutic procedures, has been reported to be
242
+ 19
243
+ effective in relieving cough and expectoration through reducing pulmonary congestion by
244
+ 20
245
+ bringing the blood to the surface and its powerful action upon the pulmonary mucous
246
+ 21
247
+ membrane.[23] Though chest pack is commonly applied over both the lung and the heart,[23]
248
+ 22
249
+ previous study has reported the effect of cold chest pack mainly on lung functions[8] and not on
250
+ 23
251
+ Page 5 of 22
252
+ Accepted Manuscript
253
+ 5
254
+
255
+ cardiovascular functions. Though HCP was reported to be useful for various cardio-respiratory
256
+ 1
257
+ problems,[23] its physiology is not well understood and the findings need further validation
258
+ 2
259
+ through scientific studies. And, to the best of our knowledge, there is no known study reporting
260
+ 3
261
+ the effect of HCP on either cardiovascular or respiratory function. Hence, the present study was
262
+ 4
263
+ conducted to evaluate the effect of HCP on cardio-respiratory functions in healthy volunteers.
264
+ 5
265
+ MATERIALS AND METHODS:
266
+ 6
267
+ Study Design:
268
+ 7
269
+ The study used randomized cross over trail design. Thirty healthy female volunteers were
270
+ 8
271
+ recruited and randomly divided into 2 groups using computerized randomization. Subjects of
272
+ 9
273
+ both the groups underwent 20-minutes of HCP (study session) and supine rest (SR) (control
274
+ 10
275
+ session) in 2 different orders. In the first group, 15 subjects underwent HCP on day-1 and SR on
276
+ 11
277
+ day-2, while the order was reversed (SR on day-1 and HCP on day-2) in the second group.
278
+ 12
279
+ Baseline and post-test assessments were performed before and after each session (Figure 1).
280
+ 13
281
+ Subjects:
282
+ 14
283
+ Thirty healthy female volunteers between 18-24 years of age were recruited from a residential
284
+ 15
285
+ University in South India based on the following inclusion and exclusion criteria. Female
286
+ 16
287
+ subjects with the age range of 18-30 years and willing to participate in the study were included in
288
+ 17
289
+ the study. Subjects with the history of any systemic and mental illness, those that regularly use
290
+ 18
291
+ medication for a disease and those who underwent chest pack or any other hydrotherapy
292
+ 19
293
+ treatments in the past 1-week were excluded from the study. Study was conducted at Anvesana
294
+ 20
295
+ research laboratories, S-VYASA University, Bengaluru, India. The study was approved by the
296
+ 21
297
+ institutional ethics committee and written informed consent was obtained from all the subjects.
298
+ 22
299
+ Page 6 of 22
300
+ Accepted Manuscript
301
+ 6
302
+
303
+ Intervention:
304
+ 1
305
+ Study session: Subjects underwent HCP, a cotton cloth approximately 2.5-m long and 0.5 m
306
+ 2
307
+ wide was soaked in water at 40oC and wrung out completely. It was then wrapped over the chest,
308
+ 3
309
+ covering both front and back, followed by a wrapping of woolen flannel of the same dimensions
310
+ 4
311
+ and maintained for a duration of 20 minutes (Figure 2).[8]
312
+ 5
313
+ Control session: Subjects underwent supine rest for the duration of 20 minutes.
314
+ 6
315
+ Outcomes variables:
316
+ 7
317
+ The primary (cardiovascular functions) and secondary outcome (respiratory function) variables
318
+ 8
319
+ (mentioned below) were taken before and after each intervention session as mentioned below:
320
+ 9
321
+ Cardiovascular Variables: SBP and DBP were assessed using a sphygmomanometer (diamond
322
+ 10
323
+ BPMR-120 Mercurial BP Delux, Pune, India). Pulse rate (PR) was assessed by placing fingers
324
+ 11
325
+ over the radial artery of the left hand. Assessments such as PP, MAP, RPP, and Do‑P were
326
+ 12
327
+ derived using following formulas: PP was calculated as (SBP - DBP); MAP as (DBP + 1/3 PP);
328
+ 13
329
+ RPP as (HR × SBP/100); and Do‑P as (HR × MAP/100).[18]
330
+ 14
331
+ Respiratory Variable: Peak expiratory flow rate (PEFR) was recorded using the Mini-Wright
332
+ 15
333
+ (CE0120) peak flow meter (Clement Clarke International Limited, Edinburgh Way, UK) as per
334
+ 16
335
+ the standard method of Wright and Mckerrow.[24] Briefly, the subjects were instructed to take a
336
+ 17
337
+ maximal inspiration and blow into the mouth piece of the device rapidly and forcefully while
338
+ 18
339
+ standing. The values of PEFR achieved in 3 successive attempts were recorded and highest of the
340
+ 19
341
+ 3 values was taken for the analysis.[5,8] The investigator was kept blinded for the study and
342
+ 20
343
+ control sessions.
344
+ 21
345
+ Page 7 of 22
346
+ Accepted Manuscript
347
+ 7
348
+
349
+ Sample size:
350
+ 1
351
+ Thirty healthy female volunteers with the age varied from 18-24 years were recruited. Sample
352
+ 2
353
+ size was not calculated based on any previous study or pilot study which is one of the limitations
354
+ 3
355
+ of the study.
356
+ 4
357
+ Randomization:
358
+ 5
359
+ Subjects were randomly divided into 2 groups [i.e. 1) first group and 2) second group] using
360
+ 6
361
+ computerized randomization.
362
+ 7
363
+ Blinding/masking:
364
+ 8
365
+ Since the same subjects underwent both study and control sessions, it was not possible to blind
366
+ 9
367
+ the intervention from the participants. However, the investigator was blinded for the study and
368
+ 10
369
+ control sessions.
370
+ 11
371
+ Statistical Analysis:
372
+ 12
373
+ Data were checked for the normality using Kolmogorov-Smirnov test. Statistical analysis of
374
+ 13
375
+ within and between sessions was performed using students paired samples-t-test (when data that
376
+ 14
377
+ was normally distributed) and Wilcoxon signed ranks test (when data that was not normally
378
+ 15
379
+ distributed) with the use of Statistical Package for the Social Sciences (SPSS) for Windows,
380
+ 16
381
+ Version 16.0. Chicago, SPSS Inc. p-value<0.05 was considered as significant.
382
+ 17
383
+
384
+ 18
385
+
386
+ 19
387
+
388
+ 20
389
+ Page 8 of 22
390
+ Accepted Manuscript
391
+ 8
392
+
393
+ RESULTS:
394
+ 1
395
+ The demographic and baseline characteristics of the first and second groups were matching and
396
+ 2
397
+ no significant changes existed between the groups (Table 1). Results of the study showed a
398
+ 3
399
+ significant reduction in SBP both in study and control session. However, a significant reduction
400
+ 4
401
+ in PR, DBP, MAP, RPP and Do-P along with a significant improvement in PEFR was observed
402
+ 5
403
+ only in the study session, while no such significant changes were observed in the control session.
404
+ 6
405
+ Moreover, the reduction in RPP and Do-P was better in the study session than control session
406
+ 7
407
+ (Table 2). None of the subjects reported any serious adverse effects during the study period.
408
+ 8
409
+ DISCUSSION:
410
+ 9
411
+ Parameters such as SBP, DBP, PP and MAP are known as the best predictors of CVD risks.[25]
412
+ 10
413
+ PEFR has been used in many studies as one of the most important variables to evaluate the
414
+ 11
415
+ pulmonary functions.[5,8] Results of this study showed a significant reduction in SBP both in
416
+ 12
417
+ study and control sessions. It suggests that both 20 minutes of HCP and SR is effective in
418
+ 13
419
+ reducing SBP. Significant reduction in SBP followed by 20 minutes of HCP might be due to its
420
+ 14
421
+ effects on either baroreceptor reflex or reduction of HR/PR. Because, SBP = cardiac output (CO)
422
+ 15
423
+ × peripheral resistance, wherein CO = HR × stroke volume and thus HR forms one of the
424
+ 16
425
+ determinants of SBP.[1,18] However, the reduction in SBP followed by 20 minutes of SR is not
426
+ 17
427
+ clear since there was no significant reduction in HR and thus needs to be explored in the future
428
+ 18
429
+ studies.
430
+ 19
431
+ Results of this study also showed a significant reduction in PR, DBP, MAP, RPP and Do-P along
432
+ 20
433
+ with a significant improvement in PEFR only in the study session, while no such significant
434
+ 21
435
+ changes were observed in the control session when compared with its respective baseline,
436
+ 22
437
+ Page 9 of 22
438
+ Accepted Manuscript
439
+ 9
440
+
441
+ suggesting that 20 minutes of HCP was effective in improving various cardiorespiratory
442
+ 1
443
+ variables unlike SR. Significant reduction in DBP and MAP in HCP session, unlike in SR
444
+ 2
445
+ session, can be attributed to the reduction in centrally mediated peripheral resistance or
446
+ 3
447
+ vasodilatation through local thermal mechanisms. Also, Reduction in RPP and Do‑P seen in the
448
+ 4
449
+ study session might be due to the reduction in PR and BP. RPP and Do‑P are the important
450
+ 5
451
+ indirect indicators of myocardial oxygen consumption and load on the heart. Reduction of these
452
+ 6
453
+ variables in the study session suggests a strain lowering effects on the heart. Besides, when HR
454
+ 7
455
+ variability (HRV) analysis is not available, the RPP can be employed as a simple measure of
456
+ 8
457
+ overall HRV.[18,26] Hence, a significant reduction in both RPP and Do-P after 20 minutes of HCP
458
+ 9
459
+ application compared with SR again indicates its strain lowering effect and better autonomic
460
+ 10
461
+ regulation of the heart.
462
+ 11
463
+ Significant reduction in cardiovascular variables along with significant improvement in PEFR in
464
+ 12
465
+ the study session unlike control session, suggests that the 20 minutes of HCP was effective not
466
+ 13
467
+ only in improving cardiovascular functions but also effective in improving respiratory functions.
468
+ 14
469
+ The improvement in the respiratory functions might attribute through increasing the blood to the
470
+ 15
471
+ surface there by reducing the pulmonary congestions and/or through its powerful action upon the
472
+ 16
473
+ pulmonary mucous membrane as stated in a hydrotherapy text.[23]
474
+ 17
475
+ In a previous study, 30 minutes of cold chest pack was reported to increase the pulmonary
476
+ 18
477
+ function in patients with bronchial asthma by means of increasing PEFR.[8] Similarly, in the
478
+ 19
479
+ present study, 20 minutes of HCP has resulted in improving pulmonary functions (increased
480
+ 20
481
+ PEFR). Though the temperature of the water used for the chest pack was different in these
482
+ 21
483
+ studies, better improvement in pulmonary function was observed in both the studies. Hence, a
484
+ 22
485
+ Page 10 of 22
486
+ Accepted Manuscript
487
+ 10
488
+
489
+ comparative study on hot and cold chest pack is needed in future to address the efficacy of these
490
+ 1
491
+ treatments with one another.
492
+ 2
493
+ Acute myocardial infarction is thought to result from thrombosis or plaque rupture because of
494
+ 3
495
+ coronary artery spasm. Alternating heat exposure (sauna bath) followed by rapid cooling by cold
496
+ 4
497
+ water might induce vasospasm by stimulation of the alpha-adrenergic receptors in patients with
498
+ 5
499
+ coronary risk factors.[27] Hence, cold applications to chest, immediately after the prolong intense
500
+ 6
501
+ HCP, might cause adverse effects, which need to be studied in future. Thus it is not advisable to
502
+ 7
503
+ use very cold application immediately after prolong hot application to chest. Also, hot
504
+ 8
505
+ application in case of early pregnancy is a potential concern because of evidence suggesting that
506
+ 9
507
+ hyperthermia might be teratogenic.[28] Hence, very hot application for a prolong time should be
508
+ 10
509
+ avoided in pregnancy.
510
+ 11
511
+ Results of the present study suggest that the HCP can be given to healthy volunteers who would
512
+ 12
513
+ like to improve their cardio-respiratory functions and for the people who are at risk of
514
+ 13
515
+ developing cardiovascular and pulmonary diseases to prevent the occurrence of these diseases.
516
+ 14
517
+ Since the application of HCP improves various cardiovascular functions including reduction in
518
+ 15
519
+ BP and cardiac work load (as indicated by reduction in RPP and Do-P), it might be useful in
520
+ 16
521
+ people with high blood pressure, coronary artery disease and cardiac failure. Similarly,
522
+ 17
523
+ improvement in pulmonary function followed by the application of HCP suggests that it might be
524
+ 18
525
+ useful for the people with persistent cough due to pulmonary congestions, bronchial asthma,
526
+ 19
527
+ chronic obstructive pulmonary diseases etc. However, further studies (clinical trials) are required
528
+ 20
529
+ to warrant the beneficial effect of HCP on the above mentioned clinical conditions.
530
+ 21
531
+ Page 11 of 22
532
+ Accepted Manuscript
533
+ 11
534
+
535
+ Strength of the study: To our knowledge this is the first study to evaluate the effect of HCP on
536
+ 1
537
+ cardio-respiratory functions in healthy volunteers. None of the subjects reported any adverse
538
+ 2
539
+ effects during the intervention. Limitations of the study: Study was conducted on healthy female
540
+ 3
541
+ volunteers that limit the scope of this study in its application to healthy male subjects and in
542
+ 4
543
+ pathological conditions including cardio-respiratory problems considering the body composition
544
+ 5
545
+ and physiological changes of male and female as well as healthy and ill peoples are different.
546
+ 6
547
+ Missing sample size calculation and the small sample size utilized in the study can be construed
548
+ 7
549
+ as a limitation. Assessment of other cardio-respiratory parameters, namely slow and forced vital
550
+ 8
551
+ capacities, diffusion capacity, lung volumes, total lung capacity, HRV, peripheral arterial
552
+ 9
553
+ resistance, continuous BP monitoring, and baroreceptor sensitivity would have given a better
554
+ 10
555
+ understanding of the state of the pulmonary functions and the cardiovascular functions
556
+ 11
557
+ respectively. The present study assessed only the immediate effects of HCP on cardio-respiratory
558
+ 12
559
+ functions. Assessing HCP’s long-term application effects and its underling mechanisms could
560
+ 13
561
+ elevate this technique as a potential preventive and curative therapy. Hence, further studies are
562
+ 14
563
+ required (Randomized control trials) on a large sample size with longer duration and advanced
564
+ 15
565
+ techniques to evaluate its precise physiological and therapeutic effects with underlying
566
+ 16
567
+ mechanisms.
568
+ 17
569
+ CONCLUSION:
570
+ 18
571
+ Results of this study suggest that 20 minutes of HCP might be effective in improving cardio-
572
+ 19
573
+ respiratory functions of healthy volunteers.
574
+ 20
575
+ SOURCE OF FUNDING: Nil
576
+ 21
577
+ CONFLICT OF INTEREST: None declared
578
+ 22
579
+ Page 12 of 22
580
+ Accepted Manuscript
581
+ 12
582
+
583
+ ACKNOWLEDGEMENT: We thank for their help in editing the manuscript.
584
+ 1
585
+ REFERENCES:
586
+ 2
587
+ 1. Muralikrishnan K, Balakrishnan B, Balasubramanian K, Visnegarawla F. Measurement
588
+ 3
589
+ of the effect of Isha Yoga on cardiac autonomic nervous system using short-term heart
590
+ 4
591
+ rate variability. J Ayurveda Integr Med. 2012;3:91-6.
592
+ 5
593
+ 2. Naumann J, Sadaghiani C, Bureau N, Schmidt S, Huber R. Outcomes from a three-arm
594
+ 6
595
+ randomized controlled trial of frequent immersion in thermoneutral water on
596
+ 7
597
+ cardiovascular risk factors. BMC Complement Altern Med. 2016;16:250.
598
+ 8
599
+ 3. Chaddha A. Slow breathing and cardiovascular disease. Int J Yoga. 2015;8:142-3.
600
+ 9
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+ 4. Rajiv Rastogi. Current Approaches of Research in Naturopathy: How Far is its Evidence
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+ 10
603
+ Base?. J HomeopatAyurv Med 2010; 1: 107.
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+ 11
605
+ 5. Murthy SN, Rao NSN. Efficacy of Naturopathy and Yoga Treatment in Bronchial
606
+ 12
607
+ Asthma. Indian J Allergy Asthma Immunol 2009;23:37-42.
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+ 13
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+ 6. Mooventhan A, Nivethitha L. Effects of ice massage of the head and spine on heart rate
610
+ 14
611
+ variability in healthy volunteers. J Integr Med 2016;14:306-10.
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+ 15
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+ 7. Sathyaprabha TN, Murthy H, Murthy BT. Efficacy of Naturopathy and Yoga in
614
+ 16
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+ Bronchial Asthma-A self controlled matched scientific study. Ind J PhysiolPharmacol.
616
+ 17
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+ 2001;45:80-86.
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+ 18
619
+ 8. Manjunath NK, Shirley T. Therapeutic application of cold chest pack in bronchial
620
+ 19
621
+ asthma. W J Med Sci. 2006;1:18-20.
622
+ 20
623
+ Page 13 of 22
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+ Accepted Manuscript
625
+ 13
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+
627
+ 9. Mooventhan A, Nivethitha L. Effects of acupuncture and massage on pain, quality of
628
+ 1
629
+ sleep and health related quality of life in patient with systemic lupus erythematosus. J
630
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631
+ Ayurveda Integr Med. 2014;5(3):186-9.
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+ 3
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+ 10. Rastogi R, Bendore P. Effect Of Naturopathy Treatments And Yogic Practices On
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+ Cervical Spondylosis-A Case Report. Indian J PhysiolPharmacol. 2015;59(4):442-5.
636
+ 5
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+ 11. Shetty GB, Mooventhan A, Anagha N. Effect of electro-acupuncture, massage, mud, and
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+ 6
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+ sauna therapies in patient with rheumatoid arthritis. J Ayurveda Integr Med.
640
+ 7
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+ 2015;6(4):295-9.
642
+ 8
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+ 12. Mooventhan A, Shetty GB. Effect of Integrative Naturopathy and Yoga in a Patient with
644
+ 9
645
+ Rheumatoid Arthritis Associated with Type 2 Diabetes and Hypertension. AncSci Life.
646
+ 10
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+ 2017;36(3):163-166.
648
+ 11
649
+ 13. Bairy S, Kumar AM, Raju M, Achanta S, Naik B, Tripathy JP, et al. Is adjunctive
650
+ 12
651
+ naturopathy associated with improved glycaemic control and a reduction in need for
652
+ 13
653
+ medications among type 2 Diabetes patients? A prospective cohort study from India.
654
+ 14
655
+ BMC Complement Altern Med. 2016;16(1):290.
656
+ 15
657
+ 14. Mooventhan A, Shetty GB. Effect of integrative naturopathy and yoga therapies in
658
+ 16
659
+ patient with metabolic syndrome. Int J Health Allied Sci 2015;4:263-6.
660
+ 17
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+ 15. Gowda S, Mohanty S, Saoji A, Nagarathna R. Integrated Yoga and Naturopathy module
662
+ 18
663
+ in management of Metabolic Syndrome: A case report. J Ayurveda Integr Med.
664
+ 19
665
+ 2017;8(1):45-48.
666
+ 20
667
+ Page 14 of 22
668
+ Accepted Manuscript
669
+ 14
670
+
671
+ 16. Joseph B, Nair PM, Nanda A. Effects of naturopathy and yoga intervention on CD4 count
672
+ 1
673
+ of
674
+ the
675
+ individuals
676
+ receiving
677
+ antiretroviral
678
+ therapy-report
679
+ from
680
+ a
681
+ human
682
+ 2
683
+ immunodeficiency virus sanatorium, Pune. Int J Yoga. 2015;8(2):122-7.
684
+ 3
685
+ 17. Mooventhan A, Nivethitha L. Scientific evidence-based effects of hydrotherapy on
686
+ 4
687
+ various systems of the body. N Am J Med Sci. 2014 May;6(5):199-209.
688
+ 5
689
+ 18. Mooventhan A. Immediate effect of ice bag application to head and spine on
690
+ 6
691
+ cardiovascular changes in healthy volunteers. Int J Health Allied Sci 2016;5:53-6.
692
+ 7
693
+ 19. Digiesi V, Cerchiai G, Mannini L, Masi F, Nassi F. Hemorheologic and blood cell
694
+ 8
695
+ changes in humans during partial immersion with a therapeutic method, in 38 o C water.
696
+ 9
697
+ Minerva Med. 1986;77:1407–11.
698
+ 10
699
+ 20. Ohori T, Nozawa T, Ihori H, Shida T, Sobajima M, Matsuki A, et al. Effect of repeated
700
+ 11
701
+ sauna treatment on exercise tolerance and endothelial function in patients with chronic
702
+ 12
703
+ heart failure. Am J Cardiol. 2012;109:100–4.
704
+ 13
705
+ 21. Sobajima M, Nozawa T, Shida T, Ohori T, Suzuki T, Matsuki A, et al. Repeated sauna
706
+ 14
707
+ therapy attenuates ventricular remodeling after myocardial infarction in rats by increasing
708
+ 15
709
+ coronary vascularity of non-infarcted myocardium. Am J Physiol Heart Circ Physiol.
710
+ 16
711
+ 2011;301:H548–54.
712
+ 17
713
+ 22. Pilch W, Szyguła Z, Klimek AT, Pałka T, Cisoń T, Pilch P, et al. Changes in the lipid
714
+ 18
715
+ profile of blood serum in women taking sauna baths of various duration. Int J Occup Med
716
+ 19
717
+ Environ Health. 2010;23:167–74.
718
+ 20
719
+ Page 15 of 22
720
+ Accepted Manuscript
721
+ 15
722
+
723
+ 23. Kellogg JH. Rational Hydrotherapy. 2nd edition. Pune: National Institute of Naturopathy.
724
+ 1
725
+ 2005.
726
+ 2
727
+ 24. Wright, B.M. and C.B. Mckerrow, 1959. Maximum forced expiratory flow as a measure
728
+ 3
729
+ of ventilatory capacity. British Med J. 1959;2:1041-7.
730
+ 4
731
+ 25. Nivethitha L, Mooventhan A, Manjunath NK. A pilot study on evaluating cardiovascular
732
+ 5
733
+ functions during the practice of Bahir Kumbhaka (external breath retention). Advances in
734
+ 6
735
+ Integrative Medicine. 2017; 4: 7-9.
736
+ 7
737
+ 26. Bhavanani AB, Madanmohan, Sanjay Z. Immediate effect of chandranadi pranayama
738
+ 8
739
+ (left unilateral forced nostril breathing) on cardiovascular parameters in hypertensive
740
+ 9
741
+ patients. Int J Yoga 2012;5:108‑11.
742
+ 10
743
+ 27. Imai Y, Nobuoka S, Nagashima J, Awaya T, Aono J, Miyake F, et al. Acute myocardial
744
+ 11
745
+ infarction induced by alternating exposure to heat in a sauna and rapid cooling in cold
746
+ 12
747
+ water. Cardiology. 1998;90:299–301.
748
+ 13
749
+ 28. Crinnion WJ. Sauna as a valuable clinical tool for cardiovascular, autoimmune,
750
+ 14
751
+ toxicantinducedAnd other chronic health problems. Altern Med Rev. 2011;16:215–25.
752
+ 15
753
+
754
+ 16
755
+
756
+ 17
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+
758
+ 18
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+
760
+ 19
761
+
762
+ 20
763
+
764
+ 21
765
+ Page 16 of 22
766
+ Accepted Manuscript
767
+ 16
768
+
769
+ Figure 1: Trial Profile
770
+ 1
771
+
772
+ 2
773
+
774
+ 3
775
+
776
+ 4
777
+
778
+ 5
779
+
780
+ 6
781
+
782
+ 7
783
+
784
+ 8
785
+
786
+ 9
787
+
788
+ 10
789
+
790
+ 11
791
+
792
+ 12
793
+
794
+ 13
795
+
796
+ 14
797
+
798
+ 15
799
+
800
+ 16
801
+
802
+
803
+
804
+ 17
805
+
806
+ 18
807
+
808
+ 19
809
+
810
+ 20
811
+
812
+ 21
813
+
814
+ 22
815
+
816
+ 23
817
+
818
+ 24
819
+
820
+
821
+ 25
822
+ Assessed for Eligibility (n=41)
823
+ Recruited Subjects (n=30)
824
+ Exclusion (n=11): Did
825
+ not fulfill the criteria
826
+ Randomization (n=30)
827
+ First Order (n = 15)
828
+ Second Order (n=15)
829
+ Day 1
830
+ Day 2
831
+ Day 2
832
+ Day 1
833
+ Baseline
834
+ (n=15)
835
+ Baseline
836
+ (n=15)
837
+ Baseline
838
+ (n=15)
839
+ Baseline
840
+ (n=15)
841
+ HCP (n=15)
842
+ SR (n=15)
843
+ SR (n=15)
844
+ HCP (n=15)
845
+ Post-test
846
+ (n=15)
847
+ Post-test
848
+ (n=15)
849
+ Post-test
850
+ (n=15)
851
+ Post-test
852
+ (n=15)
853
+ Data Analysis (n=30)
854
+ Page 17 of 22
855
+ Accepted Manuscript
856
+ 17
857
+
858
+
859
+ 1
860
+ Note: HCP = Hot Chest Pack; SR = Supine Rest
861
+ 2
862
+
863
+ 3
864
+ Figure 2: Hot chest pack given to the study subjects (n = 30)
865
+ 4
866
+
867
+ 5
868
+
869
+ 6
870
+
871
+ 7
872
+
873
+ 8
874
+ Page 18 of 22
875
+ Accepted Manuscri
876
+ TABLES:
877
+ Table 1: Demographic Variables of the First Group (n = 15) and Second Group (n = 15)
878
+ Variables
879
+ First Group (n = 15)
880
+ Second Group (n = 15)
881
+ p value (Independent samples-t-test)
882
+ Age (years)
883
+ 20.60±1.50
884
+ 20.13±1.46
885
+ 0.395
886
+ Gender
887
+ Female (n = 15)
888
+ Female (n = 15)
889
+ _
890
+ Height (meter)
891
+ 1.61±0.07
892
+ 1.61±0.05
893
+ 0.816
894
+ Weight (kilogram)
895
+ 52.80±5.20
896
+ 52.00±4.86
897
+ 0.666
898
+ Body mass index (kilogram/meter2)
899
+ 20.43±1.38
900
+ 20.18±1.73
901
+ 0.665
902
+ Peak expiratory flow rate (l/min)
903
+ 302.00±64.28
904
+ 336.00±48.67
905
+ 0.114
906
+ Systolic blood pressure (mmHg)
907
+ 117.33±7.77
908
+ 113.33±7.43
909
+ 0.161
910
+ Diastolic blood pressure (mmHg)
911
+ 77.07±7.81
912
+ 73.47±9.75
913
+ 0.274
914
+ Pulse rate (beats/minute)
915
+ 77.20±7.09
916
+ 73.80±5.21
917
+ 0.146
918
+ Page 19 of 22
919
+ Accepted Manuscri
920
+ Pulse pressure (mmHg)
921
+ 40.27±7.55
922
+ 39.87±8.47
923
+ 0.892
924
+ Mean arterial pressure (mmHg)
925
+ 90.49±6.94
926
+ 86.76±8.12
927
+ 0.187
928
+ Rate pressure product
929
+ 90.76±11.87
930
+ 83.62±7.95
931
+ 0.063
932
+ Double product
933
+ 70.04±9.96
934
+ 64.07±7.89
935
+ 0.079
936
+ Note: First group = Subjects underwent hot chest pack on day-1 and supine rest on day-2; Second group = Subjects underwent supine
937
+ rest on day-1 and hot chest pack on day-2.
938
+
939
+
940
+
941
+
942
+
943
+
944
+
945
+
946
+
947
+ Page 20 of 22
948
+ Accepted Manuscri
949
+ Table 2: Baseline and Post-test Assessments of Study (Hot Chest Pack) and Control (Supine Rest) Sessions
950
+ Between SessionAnalysis
951
+ Variables
952
+ Assessment
953
+ Hot Chest Pack Session (n= 30)
954
+ with Within Group Analysis
955
+ Supine Rest Session (n= 30)
956
+ with Within Group Analysis
957
+ t/z value
958
+ p value
959
+ Baseline
960
+ 321.33±54.76
961
+ 324.33±50.97
962
+ -0.493
963
+ 0.626*
964
+ Post-test
965
+ 343.67±46.94
966
+ 334.00±55.12
967
+ 1.501
968
+ 0.144*
969
+ PEFR (l/mint)
970
+
971
+ t = -3.999
972
+ p < 0.001*
973
+ t = -1.607
974
+ p = 0.119*
975
+
976
+ Baseline
977
+ 113.73±8.05
978
+ 114.13±8.72
979
+ -0.251
980
+ 0.803*
981
+ Post-test
982
+ 109.33±9.00
983
+ 111.33±7.51
984
+ -1.246
985
+ 0.213¶
986
+ SBP (mmHg)
987
+
988
+ t = 4.199
989
+ p < 0.001*
990
+ z =-2.325
991
+ p = 0.020¶
992
+
993
+ Baseline
994
+ 76.20±8.21
995
+ 75.33±8.29
996
+ -0.599
997
+ 0.549¶
998
+ Post-test
999
+ 73.13±7.57
1000
+ 74.47±7.78
1001
+ -0.651
1002
+ 0.515¶
1003
+ DBP (mmHg)
1004
+
1005
+ z = -2.626
1006
+ p = 0.009¶
1007
+ z = -1.231
1008
+ p = 0.218¶
1009
+
1010
+ Page 21 of 22
1011
+ Accepted Manuscri
1012
+ Baseline
1013
+ 76.47±7.00
1014
+ 76.67±7.46
1015
+ -0.145
1016
+ 0.886*
1017
+ Post-test
1018
+ 74.13±7.24
1019
+ 76.57±6.34
1020
+ -1.610
1021
+ 0.118*
1022
+ PR
1023
+ (beats/mint)
1024
+
1025
+ t = 2.251
1026
+ p = 0.032*
1027
+ t = 0.080
1028
+ p = 0.937*
1029
+
1030
+ Baseline
1031
+ 37.53±7.50
1032
+ 38.80±9.61
1033
+ -0.622
1034
+ 0.539*
1035
+ Post-test
1036
+ 36.20±6.73
1037
+ 36.87±9.17
1038
+ -0.362
1039
+ 0.720*
1040
+ PP (mmHg)
1041
+
1042
+ t = 1.149
1043
+ p = 0.260*
1044
+ t = 1.540
1045
+ p = 0.134*
1046
+
1047
+ Baseline
1048
+ 88.71±7.35
1049
+ 88.27±7.12
1050
+ 0.328
1051
+ 0.745*
1052
+ Post-test
1053
+ 85.20±7.42
1054
+ 86.76±6.36
1055
+ -1.095
1056
+ 0.282*
1057
+ MAP (mmHg)
1058
+
1059
+ t = 4.017
1060
+ p < 0.001*
1061
+ t = 1.838
1062
+ p = 0.076*
1063
+
1064
+ Baseline
1065
+ 87.10±11.37
1066
+ 87.54±11.11
1067
+ -0.232
1068
+ 0.818*
1069
+ Post-test
1070
+ 81.02±10.50
1071
+ 85.32±9.81
1072
+ -2.026
1073
+ 0.043¶
1074
+ RPP
1075
+
1076
+ z = -3.644
1077
+ p < 0.001¶
1078
+ t = 1.319
1079
+ p = 0.197*
1080
+
1081
+ Page 22 of 22
1082
+ Accepted Manuscri
1083
+ Baseline
1084
+ 67.91±9.17
1085
+ 67.85±9.93
1086
+ 0.036
1087
+ 0.972*
1088
+ Post-test
1089
+ 63.12±8.21
1090
+ 66.50±7.89
1091
+ -2.151
1092
+ 0.040*
1093
+ Do-P
1094
+
1095
+ t = 4.273
1096
+ p < 0.001
1097
+ t = .957
1098
+ p = 0.347
1099
+
1100
+ Note: All values are in Mean ± Standard Deviation. *= Paired samples-t-test; ¶=Wilcoxon Signed Ranks Test. PEFR = Peak
1101
+ expiratory floe rate; SBP = Systolic blood pressure; DBP = Diastolic blood pressure; PR = Pulse rate; PP = Pulse pressure; MAP =
1102
+ Mean arterial pressure; RPP = Rate pressure product; Do-P = Double product.
1103
+
subfolder_0/Immediate effect of stimulation in comparison to relaxation in healthy volunteers.txt ADDED
@@ -0,0 +1,621 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Indian Journal of Traditional Knowledge
2
+ Vol. 9 (3), July 2010, pp 606-610
3
+
4
+
5
+
6
+
7
+
8
+
9
+ Immediate effect of stimulation in comparison to relaxation in healthy volunteers
10
+ Sushil SK*, Nagendra HR & Nagarathna R
11
+ Swami Vivekananda Yoga Anusandhana Samsthana, 19 Eknath Bhavan, Gavipuram Circle, Bangalore 560 019, Karnataka
12
+ E-mail: [email protected]
13
+ Received 14 March 2008; revised 20 October 2009
14
+ In this self-control, cross over study carried out over two consecutive days, 43 healthy male volunteers aged 20-45 yrs
15
+ practiced 20 minutes Kapalbhati and 20 minutes Breath Awareness. Subjects were assessed before and after both practices
16
+ for State Anxiety, sustained attention (Six Letter Cancellation and Digit Letter Substitution tests), and verbal and spatial
17
+ memory. After Kapalbhati, scores reduced significantly on State Anxiety, and increased on both sustained attention, and
18
+ verbal and spatial memory; statistical significance was high on all variables (p<0.001). After Breath Awareness, changes
19
+ were also significant (p<0.001) on all variables except State Anxiety (p>0.05).
20
+ Keywords: Yoga, Kapalbhati, Anxiety, Attention, Memory
21
+ IPC Int. Cl.8: A61P25/00
22
+ Modern business trends both reduce physical activity
23
+ and increase mental strain, making for life-styles
24
+ that are tamasic, yet hyperactive. Minimal physical
25
+ activity results in lethargy, yet rajasic influences of
26
+ ambition fueled by strong desire drive attached
27
+ modes of action. This combination creates stress and
28
+ fatigue. One solution is a two fold process of sadhana
29
+ contained in Mandukya Upanishad: laye sambodhayet
30
+ chittam (when the mind becomes lethargic, stimulate
31
+ and awaken it); and vikshiptam samyet punah
32
+ (when it speeds up and distractions set in, calm it).
33
+ A
34
+ pranayama
35
+ process
36
+ combining
37
+ Kapalbhati
38
+ (stimulating) and breath awareness (calming) can
39
+ achieve this, removing stress of all kinds, and
40
+ developing attention span and memory1. Studies
41
+ suggest that yoga breathing increases spatial rather
42
+ than verbal scores without a lateralized effect2. In
43
+ one study, the yoga group showed significant
44
+ increases in spatial memory test scores, while verbal
45
+ memory test scores remained the same in all
46
+ subjects3. Improvement in spatial memory scores
47
+ following yoga can be related to reduced anxiety,
48
+ which improves performance on memory tasks4.
49
+ Practicing yoga may help in memory development by
50
+ deepening
51
+ perception,
52
+ reducing
53
+ distractibility/
54
+ increasing the attention span, activating dormant areas
55
+ and sifting useful memories from useless ones for our
56
+ overall development. kapalbhati, breathing practices
57
+ and pranayama techniques are known to develop
58
+ and to improve memory5. Study of a student group
59
+ (mean age 20.7 yrs), showed that forced left
60
+ nostril breathing increased spatial performance on a
61
+ cognitive task6.
62
+ Kapalbhati is a pranayama technique, which
63
+ invigorates the entire brain and awakens dormant
64
+ centers responsible for subtle perception7. The Hath
65
+ Ratnavali defines it as fast rotation of the breath from
66
+ left to right / right to left, or exhalation and inhalation
67
+ through both nostrils together. Kapalbhati helps
68
+ eliminate CO2, cleans air passages, stimulates
69
+ abdominal organs, and improves autonomic balance8.
70
+ Increased blood circulation and O2 levels revitalize
71
+ and activate brain cells concerned with memory and
72
+ other functions, increasing concentration, improving
73
+ memory, and stimulating intellectual faculties9. Other
74
+ studies found unilateral forced nostril breathing to
75
+ improve spatial and verbal performance, and that
76
+ 30-45 seconds kapalbhati increases breath holding
77
+ time (important for yoga sadhana)10,11. For anxiety
78
+ and depression, alternating fast and slow breathing
79
+ practices for 20-30 minutes, starting with kapalbhati
80
+ (fast breathing) before pranayama (slower breathing),
81
+ stops persistent worry12. Relaxation with Guided
82
+ Imagery (RGI) script yields short term reduction in
83
+ State-Trait Anxiety Inventory (STAI) scores, as
84
+ shown in each of three tests on nursing students13.
85
+ A previous study has investigated the effect of
86
+ stimulants on psycho-motor performance. Subjects
87
+ ——————
88
+ * Corresponding author
89
+ SUSHIL et al.: EFFECT OF STIMULATION IN HEALTHY VOLUNTEERS
90
+
91
+
92
+ 607
93
+ were served either a hot drink without coffee or a hot
94
+ drink with coffee before taking the digit letter
95
+ substitution (DLS) or six letter cancellation (SLC)
96
+ tests. Results indicated significant increases in scores
97
+ on both tests following coffee administration,
98
+ confirming coffee's stimulating effects on psycho-
99
+ motor functions, and suggesting that that improved
100
+ test performance14. No previous study has assessed
101
+ kapalbhati on measures of anxiety, sustained
102
+ attention, or verbal and spatial memory, nor has it
103
+ been compared with breath awareness for its effects
104
+ on these variables. Hence, the reasons for this study
105
+ being carried out.
106
+
107
+ Methodology
108
+
109
+ Subjects
110
+ Forty three healthy males aged 20-45 yrs
111
+ (mean 28 yrs) volunteered from groups completing
112
+ SVYASA one month residential yoga courses. They
113
+ were divided into 2 groups labeled kapalbhati (KB)
114
+ and Breath Awareness (BA).
115
+
116
+ Inclusion Criteria
117
+ Subject health was verified by routine clinical
118
+ examination and general health questionnaire (GHQ)
119
+ scores (<4). None was taking medication. Aims and
120
+ methods of the study were explained to them; all gave
121
+ written informed consent.
122
+
123
+ Designs
124
+ This was a crossover self-control study. The KB
125
+ group did kapalbhati on the first day and breath
126
+ awareness the second day; for the BA group, the order
127
+ was reversed.
128
+
129
+ Assessments
130
+ Assessments were made before and after KB and
131
+ BA practice at the same time on two consecutive
132
+ days.
133
+
134
+ Instruments
135
+ STAI is a self-report instrument, for study of state
136
+ and trait anxiety. State anxiety (STAI A-State)
137
+ reflects transitory emotional states characterized
138
+ by subjectively perceived feelings of tension,
139
+ apprehension, and heightened ANS activity. Intensity
140
+ may fluctuate over time15. The test consists of a
141
+ worksheet with 4 statements describing different
142
+ states of anxiety, said to be the most common in
143
+ measuring present anxiety. Subjects select score
144
+ numbers against each statement indicating frequency
145
+ of occurrence of these states: almost never,
146
+ sometimes, often, and almost always. STAI-A scores
147
+ have a direct interpretation: high scores mean more
148
+ state anxiety; low scores mean less. The six letter
149
+ cancellation (SLC) test and digit letter substitution
150
+ (DLS) test require visual selectivity and repetitive
151
+ motor response. They assess selective, focused and
152
+ sustained attention, visual scanning and activation and
153
+ inhibition of rapid responses, helping isolate major
154
+ components
155
+ of
156
+ performance
157
+ like
158
+ detection,
159
+ perception, recognition, processing and integration.
160
+ Both have been standardized for Indian populations16.
161
+ They are valid for the study of immediate effects14.
162
+ The SLC test consists of a worksheet containing
163
+ 22 rows × 14 columns randomly arranged letters of
164
+ the alphabet, and specifying 6 target letters to be
165
+ canceled. Subjects strike out as many target letters as
166
+ possible in the specified time (90 seconds). The DLS
167
+ test consists of a worksheet containing 12 rows × 8
168
+ columns randomized digits, with a key specifying
169
+ pairings between digits 1-9 and Roman letters.
170
+ Subjects substitute as many target digits as possible
171
+ in the specified time of 90 seconds16. These 2 tests
172
+ are standard measures of attention span, hence
173
+ their selection. The verbal memory test consists of
174
+ 4 different sets of 10 nonsense syllables, e.g. ZOC
175
+ enough to be presented both pre and post the KB and
176
+ BA interventions. The spatial memory test consists
177
+ of 10 line drawings of easily described geometrical
178
+ or other shapes, that are simple and reproducible
179
+ (not square or circle). As for verbal memory, 4 similar
180
+ sets of drawings are used, one each, pre and post
181
+ KB and BA interventions3,17. Each test is projected
182
+ on a laptop for the subjects allowing 10 seconds
183
+ for each slide. Immediately after the slides, subjects
184
+ are shown a mathematical problem on the screen
185
+ (e.g. 3+5-2+4-2-5+6-3). Subjects are then asked to
186
+ recall and write down (or draw in the case of spatial
187
+ memory) as many of the 10 test items as they can
188
+ within 60 seconds.
189
+
190
+ Test Reliability and validity
191
+ Reliability refers to consistency of measurement,
192
+ reflected in score reproducibility. Validity concerns
193
+ how well a test measures what it purports to. The
194
+ STAI and sustained attention tests have been
195
+ evaluated for them based on standard criteria. A-State
196
+ anxiety scores have high degrees of internal
197
+ consistency15. Their point–biseral r (Pb) correlations
198
+ are 0.60 and 0.73, respectively15. For the SLC test,
199
+ reliability is ascertained based on temporal stability
200
+ and internal consistency18. In the first, the correlation
201
+ INDIAN J TRADITIONAL KNOWLEDGE, VOL 9, NO. 3, JULY 2010
202
+
203
+
204
+ 608
205
+ coefficient was calculated using unpublished pilot
206
+ data collected on 29 healthy male volunteers.
207
+ Spearman’s correlation coefficient was calculated
208
+ between data collected before and after a 23 min
209
+ non-specific intervention: subjects read a book of
210
+ their choice, while remaining seated. The net score
211
+ variable for which correlation was calculated
212
+ remained stable (r=.781, p=.002). As the SLC test
213
+ consists of one variable, internal consistency cannot
214
+ be calculated. Content validity of this test is adequate
215
+ for its intended purpose. Corresponding data on
216
+ the DLS test are unfortunately not available. The tests
217
+ of verbal and spatial memory developed at SVYASA
218
+ clearly test the intended variable and are valid;
219
+ their reliability is currently being more precisely
220
+ evaluated.
221
+
222
+ Interventions
223
+ Instructions were delivered by audiotape for the
224
+ 20 minutes performance of both practices; one minute
225
+ practice was followed by one minute relaxation,
226
+ repeated 10 times. Subjects sat with their spine
227
+ straight. For kapalbhati, instructions were as follows:
228
+ Sit straight keeping your head, neck, spine erect. Take
229
+ a deep inhalation, exhale forcibly, blast out the air
230
+ using abdominal muscle, inhale passively relaxing the
231
+ abdominal muscles, and repeat these movements as
232
+ quickly as possible starting with 60 strokes per
233
+ minutes and increasing gradually up to 80 strokes per
234
+ minute. There is no holding of breath. The rapid
235
+ active exhalation with passive effortless inhalation is
236
+ accomplished by flapping movement of the abdomen,
237
+ continued at a uniform speed of 80 strokes per
238
+ minute. It is continued for 1 minute, slowing down
239
+ gently at the end. Following each minute's KB
240
+ practice, relaxation instructions were given as
241
+ follows: Relax … relax …yourself. Allow your
242
+ abdominal muscles to relax; relax your whole body
243
+ and mind, enjoy the deep silence of the mind, relax…
244
+ relax…! Breath awareness practice was performed
245
+ similarly: one minute practice was followed by one
246
+ minute relaxation, repeated ten times. Instructions
247
+ were as follows: Sit comfortably, relax yourself,
248
+ become aware of your breathing, just observe your
249
+ breathing pattern, simply observe, do not manipulate,
250
+ just go on observing, maintain your awareness
251
+ towards breathing, just observe, now relax, relax
252
+ yourself totally from toes to head, allow relaxation
253
+ to continue all your body and mind..! The same
254
+ relaxation instructions were used as in the KB session.
255
+
256
+ Data analysis
257
+ Statistical analysis was done using SPSS (version
258
+ 10.0). Data were assessed for normality using the
259
+ Kolmogorov-Shapiro Test. Paired ’t’ tests and RM
260
+ ANOVA tests were used to assess significance within
261
+ and between groups, respectively.
262
+
263
+ Results
264
+ The Kolmogorov–Shapiro tests of normality
265
+ showed pre data of SAS, SLC and DLS tests were
266
+ normally distributed for both groups, while pre-data
267
+ of the two memory tests were not normally
268
+ distributed. The group means values, standard
269
+ deviation values, p values and percentage change
270
+ values of both groups, i.e. of kapalbhati and breath
271
+ awareness are given below (Table 1). The STAI
272
+ A-State (SAS) test of relatively labile state anxiety,
273
+ Table 1— Pre-post changes in measured variables
274
+ KB
275
+ BA
276
+ Test
277
+ N=43
278
+ Mean
279
+ ± SD
280
+ P-
281
+ value
282
+ Post-pre
283
+ % change
284
+ Mean
285
+ ± SD
286
+ P-value
287
+ Post-pre
288
+ % change
289
+ Pre
290
+ 8.16
291
+ 2.44
292
+ 7.79
293
+ 2.05
294
+ SAS
295
+ Post
296
+ 7.33
297
+ 2.01
298
+ 0.001
299
+ 11.32
300
+ 7.56
301
+ 2.11
302
+ 0.142
303
+ 3.04
304
+ Pre
305
+ 40.65
306
+ 9.93
307
+ 39.86
308
+ 11.27
309
+ SLC
310
+ Post
311
+ 50.28
312
+ 9.62
313
+ 0.001
314
+ 23.69
315
+ 45.77
316
+ 12.81
317
+ 0.001
318
+ 14.83
319
+ Pre
320
+ 56.53
321
+ 11.15
322
+ 54.67
323
+ 9.64
324
+ DLS
325
+ Post
326
+ 64.95
327
+ 12.1
328
+ 0.001
329
+ 14.89
330
+ 58.35
331
+ 9.77
332
+ 0.001
333
+ 6.73
334
+ Pre
335
+ 3.05
336
+ 1.84
337
+ 3.67
338
+ 2.04
339
+ MMR- VBL
340
+ Post
341
+ 4.07
342
+ 2.27
343
+ 0.001
344
+ 33.44
345
+ 2.33
346
+ 1.71
347
+ 0.001
348
+ -36.51
349
+ Pre
350
+ 4.56
351
+ 1.14
352
+ 4.81
353
+ 1.72
354
+ MMR- SP
355
+ Post
356
+ 6.12
357
+ 1.28
358
+ 0.001
359
+ 34.20
360
+ 4.00
361
+ 1.46
362
+ 0.001
363
+ -16.84
364
+ SAS-Stai A State, SLC-Six Letter Cancellation, DLS-Digit Letter Substitution, MMR VBL-Verbal, & MMR SP-Spatial Memory
365
+ Legend: Table 1 presents Pre-Post Mean ± Standard Deviations, significance p values and percentage changes in value for all measured
366
+ variables (state anxiety, sustained attention, and verbal and spatial memory) before and after Kapalbhati (KB) and Breath Awareness
367
+ (BA). The contrasting increase and decrease in memory scores are of great significance.
368
+ SUSHIL et al.: EFFECT OF STIMULATION IN HEALTHY VOLUNTEERS
369
+
370
+
371
+ 609
372
+ was significantly reduced after kapalbhati practice
373
+ (p<0.001), but the reduction after breath awareness
374
+ practice did not reach significance (p=0.142>0.05)
375
+ (Paired ’t’ test). Between groups results were
376
+ significantly different (p<0.02), as given in Table 2
377
+ below. Scores on the SLC and DLS tests of sustained
378
+ attention were significantly increased for both groups
379
+ (p<0.001) (Paired ’t’ test). In contrast, scores on both
380
+ the verbal (MMR VBL) and spatial memory (MMR
381
+ SP) tests showed significant but opposite changes. For
382
+ the kapalbhati group, both significantly increased
383
+ (p<0.001), but for the breath awareness group, both
384
+ significantly decreased (p<0.001) (Paired ’t’ test).
385
+
386
+ Discussion
387
+ It has previously been established that Kapalbhati
388
+ practice causes autonomic activation: increased
389
+ heart rate and systolic blood pressure were observed
390
+ as an immediate effect during 3 continuous kapalbhati
391
+ sessions of 5 minutes each19. This suggests that
392
+ practice
393
+ of
394
+ kapalbhati
395
+ increases
396
+ sympathetic
397
+ activity20. The study found reduction in anxiety score
398
+ after practice of kapalbhati (11.32%, p<0.001), but
399
+ the 3.04% reduction following breath awareness did
400
+ not reach significance (p=0.142). The difference in
401
+ anxiety reduction between kapalbhati and breath
402
+ awareness was significant (p<0.023). This result
403
+ therefore suggests that, although it temporarily
404
+ increases sympathetic activation, kapalbhati is more
405
+ effective than breath awareness in reducing subjects'
406
+ anxiety levels. This might be thought surprising,
407
+ because previous work suggests that yoga practice
408
+ reduces anxiety, because of its ability to reduce
409
+ psycho-physiological arousal21. This is clearly not the
410
+ reason in the study. However, a different study
411
+ supports the idea that practices producing arousal
412
+ may, in the end, be more beneficial: cyclic meditation,
413
+ which combines stimulating and calming techniques,
414
+ practiced with a background of relaxation and
415
+ awareness, in the end reduces physiological arousal
416
+ more effectively than supine rest in shavasana, which
417
+ is only calming22. For the SLC and DLS tasks, the
418
+ results suggest that kapalbhati augments attention,
419
+ both
420
+ enhancing
421
+ performance,
422
+ and
423
+ reducing
424
+ distraction. The study found increases in sustained
425
+ attention scores after practice of both kapalbhati
426
+ (23.69% & 14.89% for SLC & DLS tasks,
427
+ respectively) (both p<0.001), and breath awareness
428
+ (14.83% & 6.73% for SLC & DLS, respectively)
429
+ (both p<0.001), but, again, significantly more after
430
+ kapalbhati than breath awareness (both SLC & DLS
431
+ p<0.001). These results support the idea that
432
+ kapalbhati is more effective in increasing subjects'
433
+ sustained attention span than breath awareness.
434
+ Since Kapalbhati increases psycho-physiological
435
+ arousal, this finding is consistent with the study on
436
+ effects of drinking coffee, which suggested that
437
+ coffee's
438
+ stimulating
439
+ effects
440
+ on
441
+ psycho-motor
442
+ function, improve test performance14. With regard
443
+ to memory, one study of a group trained in yoga
444
+ found significant increase in spatial memory
445
+ test scores, while verbal memory test scores
446
+ remained the same3. Another study reported
447
+ effects on memory of 4 pranayama techniques:
448
+ right nostril breathing, left nostril breathing,
449
+ alternate nostril breathing and breath awareness
450
+ without manipulation of nostrils2. All 4 groups
451
+ showed a significant increase in spatial test
452
+ scores (mean 84%), while the control group
453
+ showed no change. It was suggested that yoga
454
+ breathing increases spatial memory scores without a
455
+ lateralized effect2. It has also been suggested that
456
+ improvements in spatial memory scores may be due
457
+ to anxiety reduction, which is known to improve
458
+ performance on learning and memory tasks4 e.g. a
459
+ study of undergraduates (mean age 20.7 yrs)
460
+ showed that forced left nostril breathing increased
461
+ spatial performance on a cognitive test of mental
462
+ rotation, manipulation and twisting of 2 and
463
+ 3 dimensional objects6. In this light, the present
464
+ study's findings that verbal and spatial memory
465
+ scores both increased significantly after kapalbhati
466
+ practice (33.44% & 34.20%, respectively, both
467
+ p < 0.001), but decreased significantly after
468
+ breath awareness practice (-36.51% & -16.84%
469
+ respectively, p<0.001), is very important. It was
470
+ found that kapalbhati does not produce a lateralized
471
+ effect. Also, the opposite changes in kapalbhati
472
+ and
473
+ Breath
474
+ Awareness
475
+ demonstrate
476
+ that
477
+ the
478
+ hypothesis that all mind-body techniques have
479
+ similar effects is erroneous23.
480
+ Table 2 —Significance of p values between groups
481
+ Test
482
+ Significance
483
+ SAS
484
+ 0.023
485
+ SLC
486
+ 0.007
487
+ DLS
488
+ 0.01
489
+ MMR-VBL
490
+ 0.001
491
+ MMR-SPL
492
+ 0.001
493
+ SAS-Stai A State, SLC-Six Letter Cancellation,
494
+ DLS-Digit Letter Substitution, MMR VBL-Memory Verbal,
495
+ MMR SP-Memory Spatial
496
+ INDIAN J TRADITIONAL KNOWLEDGE, VOL 9, NO. 3, JULY 2010
497
+
498
+
499
+ 610
500
+ Conclusion
501
+ The study suggests that both kapalbhati and breath
502
+ awareness reduce anxiety and improve sustained
503
+ attention. However, kapalbhati was significantly more
504
+ effective in doing so than breath awareness. In
505
+ contrast, they act oppositely on verbal and spatial
506
+ memory: whereas kapalbhati significantly increases
507
+ both, scores on these variables significantly declined
508
+ after breath awareness. This suggests that breath
509
+ awareness is intrinsically dulling to the mind, though
510
+ further experiment is needed determine whether
511
+ verbal instructions yield better results than the
512
+ repeated audio tape instructions used in the
513
+ experiment. This would be a significant experiment,
514
+ because breath awareness and related techniques are
515
+ considered important components of many systems of
516
+ psycho-spiritual development.
517
+
518
+ Acknowledgement
519
+ This work forms part of the first author's
520
+ (SSK)
521
+ dissertation
522
+ to
523
+ be
524
+ submitted
525
+ to
526
+ the
527
+ Swami Vivekananda Yoga Anusandhana Samsthana
528
+ (SVYASA University) in partial fulfillment of his
529
+ PhD. SSK is grateful to the authorities of the
530
+ University for the opportunity given to him. The
531
+ authors are grateful to Ravi Kulkarni of SVYASA's
532
+ division of physical sciences for his assistance in
533
+ statistical analysis of data, and to Alex Hankey for
534
+ editorial assistance.
535
+
536
+ References
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+ 1
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+ Nagendra HR & Nagarathna R, New perspectives in
539
+ stress management, (Vivekananda Kendra Yoga Prakashna
540
+ Bangalore), 1998.
541
+ 2
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+ Naveen KV, Nagarathna R, Nagendra HR & Telles S, Yoga
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+ breathing through a particular nostril increases spatial
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+ memory scores without lateralized effects, Psychol Rep, 81
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+ (1997) 555-561.
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+ 3
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+ Manjunath NK & Telles S, Spatial and verbal memory task
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+ scores following yoga and fine art camps for school children,
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+ Indian J Physiol Pharmacol, 48 (2004) 353-356.
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+ 4
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+ Saltz E, Manifest anxiety: Have we missed the data?,
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+ Psychol Rev, 77 (1970) 568 – 573.
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+ 5
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+ Nagendra HR & Telles S, Yoga & Memory, (Vivekananda
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+ Kendra Yoga Prakashna, Bangalore), 1999, 27.
556
+ 6
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+ Jella SA & Shannahoff – Khalsa DS, The effects of unilateral
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+ forced nostril breathing on cognitive performance, Int J
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+ Neurosci, 73 (1993) 61-68.
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+ 7
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+ Muktibodhananda, Hath yoga pradipika, (Yoga Publication
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+ Trust, Munger, Bihar), 2001 187, 220-222.
563
+ 8
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+ Nagendra HR & Mohan T, Yoga in Education, (Vivekananda
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+ Kendra Yoga Anusandhana Samsthana, Bangalore), 2003.
566
+ 9
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+ Lysenbeth & Andrevan, Pranayama-The yoga of breathing,
568
+ (Unwin Paperbacks, London), 1985.
569
+ 10 Block RA, Arnott DP, Quigley B & Guch WC, Unilateral
570
+ nostril
571
+ breathing
572
+ influences
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+ lateralized
574
+ cognitive
575
+ performance, Brain Cogn, 9 (1989) 181-90.
576
+ 11 Bhole MV, Effect of kapalbhati on breath holding time,
577
+ Yoga Mimansa, 18 (3&4) (1956) 21-26.
578
+ 12 Nagarathna R & Nagendra HR, Yoga practices for anxiety
579
+ and depression, (Swami Vivekananda Yoga Prakashna,
580
+ Bangalore), 2004.
581
+ 13 King Jane Valerie, A holistic technique to lower anxiety:
582
+ Relaxation with guided imagery, J Holistic Nursing, 6 (1988)
583
+ 16-20.
584
+ 14 Natu MV & Agarawal AK, Testing of stimulant effects of
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+ coffee
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+ on
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+ the
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+ psychomotor
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+ performance,
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+ Indian
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+ J
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+ Pharmacol, 29 (1997) 11-14.
593
+ 15 Spielberger CD, Gorsuch RL & Lushene RE, State –Trait
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+ Anxiety Inventory, (Preliminary Test Manual, for Form B &
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+ X), (Florida State University, Tallahassee, Florida), 1968.
596
+ 16 Lezak MD, Neuropsychological assessment, 3rd edn,
597
+ (Oxford University Press, New York), 1995.
598
+ 17 Baddelay AD, Your Memory – A user’s guide, (Avery, New
599
+ York), 1993.
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+ 18 Singh AK, Tests measurements and research methods in
601
+ behavioral science, (Bharati Bhavan, Patna), 2002.
602
+ 19 Stancak AJV, Kuna MS, Vishnudevananda S & Dostalek, E,
603
+ Kapalbhati– Yogic cleansing exercise and cardiovascular and
604
+ respiratory changes, Homeost Health, 33 (3) (1991) 126-134.
605
+ 20 Raghuraj P, Ramakrishnan AG, Nagendra HR & Telles S,
606
+ Effect of two selected yogic breathing techniques on heart
607
+ rate variability, Indian J Physiol Pharmacol, 42 (4) (1998)
608
+ 467-472.
609
+ 21 21 Telles S, Rajesh B & Srinivas, Automatic and respiratory
610
+ measures in children with impaired vision following yoga
611
+ and physical activity programs, Int J Rehabilitation Health, 4
612
+ (2) (1999) 117-122.
613
+ 22 Telles S, Reddy SK & Nagendra HR, Oxygen Consumption
614
+ and respiration following two yoga relaxation techniques,
615
+ Appl Psychophysiol Biofeed, 25 (4) (2000) 221- 227.
616
+ 23 Herbert B & Miriam ZK, The Relaxation Response, (Avon
617
+ Books), 2000.
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+
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+
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+
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+
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1
+ 3/9/2017
2
+ Immediate effect of two yoga­based relaxation techniques on attention in children
3
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2997234/?report=printable
4
+ 1/4
5
+ Int J Yoga. 2010 Jul­Dec; 3(2): 67–69.
6
+ doi:  10.4103/0973­6131.72632
7
+ PMCID: PMC2997234
8
+ Immediate effect of two yoga­based relaxation techniques on attention
9
+ in children
10
+ Balaram Pradhan and HR Nagendra
11
+ Division of Yoga and Life Sciences, Swami Vivekananda Yoga Anusandhana Samsthana, Bangalore ­ 560 019, India
12
+ Address for correspondence: Dr. H. R. Nagendra, Swami Vivekananda Yoga Anusandhana Samsthana, # 19, K.G. Nagar, Bangalore ­ 560
13
+ 019, India. E­mail: [email protected]
14
+ Copyright © International Journal of Yoga
15
+ This is an open­access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use,
16
+ distribution, and reproduction in any medium, provided the original work is properly cited.
17
+ Abstract
18
+ Aims:
19
+ To investigate the effect of two yoga­based relaxation techniques, namely, cyclic meditation (CM) and
20
+ supine rest (SR), using the six letter cancellation task (SLCT).
21
+ Materials and Methods:
22
+ The subjects consisted of 208 school students, (132 boys, 76 girls) in the age range of 13 – 16 years. The
23
+ subjects were assessed on SLCT before and immediately after both yoga­based relaxation techniques.
24
+ Results:
25
+ After both practices, the total and net scores were significantly increased, although the magnitude of change
26
+ was more after CM than after SR in the net scores (14.5 versus 11.31%). The net score change in the CM
27
+ session was significantly larger than the change in the SR, whereas, there was no significant change in the
28
+ wrong cancellation score. After either practice, the total and net scores were significantly increased,
29
+ irrespective of gender and age.
30
+ Conclusions:
31
+ Both CM and SR led to improvement in performance, as assessed by SLCT, but the change caused by CM
32
+ was larger than SR.
33
+ Keywords: Cancellation, meditation, relaxation, yoga
34
+ INTRODUCTION
35
+ A yoga practice derived from an ancient Indian yoga text (Mandukya Karika) called cyclic meditation (CM)
36
+ is a technique that combines ‘stimulating’ and ‘calming’ practices, based on a statement in an ancient yoga
37
+ text suggesting that such a combination may be especially helpful to reach a state of mental equilibrium,
38
+ which consists of the practice of physical postures interspersed with relaxation, which has been used for
39
+ stress relief.[1] After this practice there was a significant reduction in oxygen consumption when compared
40
+ to an equal period of supine rest in shavasana.[2,3]
41
+ Recent studies on CM have suggested that sympathetic activation occurs predominantly during the yoga
42
+ posture phases of CM, whereas, following CM, the parasympathetic nervous system becomes dominant.[4]
43
+ The results support the idea that a combination of yoga postures with supine rest (in CM) reduces the energy
44
+ expenditure compared to supine rest alone and[5] CM enhances the cognitive processes underlying the
45
+ 3/9/2017
46
+ Immediate effect of two yoga­based relaxation techniques on attention in children
47
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2997234/?report=printable
48
+ 2/4
49
+ generation of P300.[6] CM brings about a greater improvement in the performance of the cancellation task.
50
+ [7] To avoid the effect of memory during repeated administration, parallel worksheets have been prepared,
51
+ by changing the sequence of letters randomly in the working section, which was not taken care of in the
52
+ earlier study.[8]
53
+ Hence, the present study aims to evaluate the SLCT performance on school students, following two yoga­
54
+ based relaxation practices.
55
+ MATERIALS AND METHODS
56
+ Subjects
57
+ Two hundred and eight school students were selected in the present study with an age range between 13 and
58
+ 16 years (M=13.84; SD=0.98). All of them were healthy and proficient in English. They were trained for
59
+ practicing both CM and SR for seven days. The participants were excluded from the study if they had a
60
+ history of neurological or psychiatric disturbances, were younger than age 12 or older than 16 years of age,
61
+ under medication, had a history of learning disability, or were not proficient in English. After a complete
62
+ description of the study, the participants had given their written informed consent.
63
+ Procedure
64
+ The participants were assessed in two types of sessions, namely, CM and SR. For half the subjects, the CM
65
+ session took place on one day with SR the next day. The other subjects had the order of the sessions
66
+ reversed. The subjects were alternately allocated to either schedule, to prevent the order of sessions
67
+ influencing the results. Each session had a duration of 22 minutes and 30 seconds. Assessments were made
68
+ immediately before and after each session.
69
+ Instrument
70
+ The six­letter cancellation task consisted of a test worksheet that specified the six target letters to be cancelled
71
+ and had a ‘working section’ that consisted of letters of the alphabet arranged randomly in 14 rows and 22
72
+ columns. The participants were asked to cancel as many six target letters as possible, which were printed at
73
+ the top of working section of the test sheets, in the specified time, that is, 1 minute 30 seconds. They were
74
+ told that there were two possible strategies, that is, (i) doing all six letters at a time, or (ii) selecting any one
75
+ target letter out of the six. They were asked to choose whichever strategy suited them. They were also told
76
+ that they could follow a horizontal, vertical or a random path according to their choice.[8] The scoring was
77
+ done by a person who was unaware when the assessment was made, whether the participant was engaging
78
+ in CM or SR, and whether the assessment was ‘pre’ or ‘post’ the session. The total number of cancellations
79
+ and wrong cancellations were scored and the net scores were calculated by deducting the wrong
80
+ cancellations from the total cancellations attempted. As this test was administered before and immediately
81
+ after the intervention, parallel work sheets were prepared by changing the sequence of the letters randomly in
82
+ the working section. Hence, the subjects were divided in two sessions in equal numbers and altered the next
83
+ day. Both the sessions received one set of worksheets before a session and parallel worksheets after the
84
+ session. The SLCT was used in a similar design in an Indian population, indicating the validity of the task, to
85
+ study the immediate effects.[8]
86
+ Throughout the CM practice, the subjects kept their eyes closed and followed pre­recorded instructions. The
87
+ instructions emphasized carrying out the practice slowly, with awareness and relaxation. The practice began
88
+ by repeating a verse (40 seconds) from the yoga text, the Mandukya Karika;[9] followed by isometric
89
+ contraction of the muscles of the body, ending with supine rest (1:00 minute); slowly coming up on the left
90
+ side and standing at ease (called tadasana) and ‘balancing’ the weight on both feet, called centering (2:00
91
+ min); then the first actual posture, bending to the right (ardhakaticakrasana, 1 minute 20 seconds); a gap of 1
92
+ minute 10 seconds in tadasana, with instructions about relaxation and awareness; bending to the left
93
+ (ardhakaticakrasana, 1 minute 20 seconds); a gap as before (1 minute 10 seconds); forward bending
94
+ (padahastasana, 1 minute 20 seconds); another gap (1 minute 10 seconds); backward bending
95
+ (ardhacakrasana, 1 minute 20 seconds); and slowly coming down in the supine posture with instructions to
96
+ relax different parts of the body in sequence (10 minutes). The postures were practiced slowly, with
97
+ awareness of all the sensations that are felt. The total duration of the practice was 22 minutes 30 seconds.[2]
98
+ 3/9/2017
99
+ Immediate effect of two yoga­based relaxation techniques on attention in children
100
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2997234/?report=printable
101
+ 3/4
102
+ During SR, or the ‘corpse posture’ the subjects lay supine with legs apart and arms away from the sides of
103
+ the body and with their eyes closed. This practice lasted 22 minutes 30 seconds, so the duration was the
104
+ same as for CM.
105
+ Data analysis
106
+ Statistical analysis was done using SPSS (Version 10.0). The total number of wrong attempts and the net
107
+ score data were analyzed using the repeated measures analyses of variance (RMANOVA). There was one
108
+ Within Subjects Factor, that is, States with two levels (pre and post) and one Between Subjects Factor, that
109
+ is, Groups with two levels (CM or SR session). Post­hoc tests with Bonferroni adjustment were used to
110
+ detect significant differences between the mean values.
111
+ RESULTS
112
+ The group mean values and standard deviation for total scores, scores for wrong cancellations, and net score
113
+ in CM and SR sessions are given in Table 1.
114
+ DISCUSSION
115
+ The performance in the letter cancellation task improved immediately after the two yoga­based relaxation
116
+ sessions, namely, CM and SR. However, the magnitude of change in the net scores after CM was 14.5% and
117
+ after SR was 11.31%. The net score change in the CM session was significantly larger than the change in the
118
+ SR session. There was no significant change in the wrong cancellation score after CM and SR.
119
+ In the present study, the change in the net score had a similar trend as in an earlier study that had an identical
120
+ design.[7] However, in the earlier study, there was a 24.9% improvement in the net score after CM and
121
+ 11.6% after SR. This difference of change could be due to the fact that the mediator in the previous study
122
+ had an average experience of 15.3±13.3 months, while in the present study the subjects had undergone only
123
+ a seven­day training program. These results revealed that the average duration of the practitioners had an
124
+ influence on the outcome measures. For example, the progressive relaxation technique found slight
125
+ differences in the first and second weeks, but major differences were observed in the fourth and fifth weeks
126
+ in the ‘Smith Relaxation State Inventory’ before and after the session.[10]
127
+ Cancellation tasks involve sustained attention, concentration, visual scanning, and activation and inhibition
128
+ of rapid responses.[11] Both the yoga­based relaxation techniques bring enhancement in the performance
129
+ task. Another study, Sahaja Yoga Meditation can lead to additional improvement in executive functions,
130
+ such as, manipulation of information in the verbal working memory, added improvement in the attention
131
+ span, and visual­motor speed in patients with depression.[12]
132
+ Yoga practice has been understood to help in reducing anxiety, based on a reduction in the levels of
133
+ psychophysiological arousal. In the earlier studies, both CM and SR, practiced for an equal period, found
134
+ improvement in the metabolic cost,[2,3,5] autonomic function,[4] and attention measure, using P300.[6]
135
+ Further study is required for an understanding of the mechanisms involved while forming the task and the
136
+ effect of age and gender groups.
137
+ REFERENCES
138
+ 1. Nagendra HR, Nagarathna R. New perspectives in stress management. Bangalore, India: Swami
139
+ Vivekananda Yoga Publications; 1997.
140
+ 2. Telles S, Reddy SK, Nagendra HR. Oxygen consumption and respiration following two yoga relaxation
141
+ techniques. Appl Psychophysiol Biofeedback. 2000;25:221–7. [PubMed: 11218923]
142
+ 3. Sarang SP, Telles S. Oxygen consumption and respiration during and after two yoga relaxation
143
+ techniques. Appl Psychophysiol Biofeedback. 2006;31:143–53. [PubMed: 16838123]
144
+ 4. Sarang SP, Telles S. Effect of two yogic relaxation techniques on heart rate variability. Int J Stress Manag.
145
+ 2006;13:460–75.
146
+ 5. Sarang SP, Telles S. Cyclic meditation a moving meditation reduces energy expenditure more than supine
147
+ rest. Indian J Psychol. 2007;24:17–25.
148
+ 3/9/2017
149
+ Immediate effect of two yoga­based relaxation techniques on attention in children
150
+ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2997234/?report=printable
151
+ 4/4
152
+ 6. Sarang SP, Telles S. Change in P300 following two yoga­based relaxation techniques. Int J Neurosci.
153
+ 2006;116:1419–30. [PubMed: 17145677]
154
+ 7. Sarang SP, Telles S. Immediate effect of two yoga­based relaxation techniques on performance in a letter­
155
+ cancellation task. Percept Mot Skills. 2007;105:379–85. [PubMed: 18065059]
156
+ 8. Natu MV, Agarawal AK. Testing of stimulant effects of coffee on the psychomotor performance: An
157
+ exercise in clinical pharmacology. Indian J Physiol Pharmacol. 1997;29:11–4.
158
+ 9. Chinmayanada . Swami Mandukya Upanishat. Bombay: Sachin Publishers; 1984.
159
+ 10. Matsumoto M, Smith JC. Progressive muscle relaxation, breathing exercise, and ABC relaxation theory.
160
+ J Clin Psycol. 2001;57:1551–7.
161
+ 11. Lezak M, Howieson DB, Loring DW. Neuropsychological assessment. New York: Oxford University
162
+ Press; 2004.
163
+ 12. Sharma VK, Das S, Mondal S, Goswami U, Gandhi A. Effect of Sahaja Yoga on neuro­cognitive
164
+ functions in patients suffering from major depression. Indian J Physiol Pharmacol. 2006;50:375–83.
165
+ [PubMed: 17402267]
166
+ Figures and Tables
167
+ Table 1
168
+ Total score, scores for wrong cancellation, and net score in an SLCT pre and post the CM and SR sessions.
169
+ Values are in group mean and standard deviation
170
+ Cyclic meditation
171
+ Supine rest
172
+ Pre
173
+ Post
174
+ Pre
175
+ Post
176
+ Total score for cancellation
177
+ 39.07±12.21 44.84±13.24
178
+ 38.67±12.16 42.87±13.16
179
+ Score for wrong cancellation
180
+ 0.53±1.39
181
+ 0.68±1.62
182
+ 0.66±1.96
183
+ 0.58±1.78
184
+ Net score for cancellation
185
+ 38.54��12.32 44.13±13.26
186
+ 38.01±12.2
187
+ 42.31±13.26
188
+ P<0.001, RMANOVA with Post­hoc test Bonferroni adjustment, compared with respective pre score;
189
+ P<0.05, RMANOVA with Bonferroni adjustment between sessions, compared with post score of CM and SR;
190
+ Total scores differed significantly between States (F=222.92, P<0.001) and there was a significant interaction between
191
+ session and state (F=6.79, P<0.01). Also, the net scores differed significantly between states (F=218.58, P<0.001) and there
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+ was a significant interaction between session and state (F=4.62, P<0.033). Post­hoc analyses showed that for both CM and
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+ SR, there was a significant increase in total scores (P<0.001 in both sessions) and net scores (P<0.001 in both sessions)
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+ compared to the respective pre­values. Also there was a significant change in post mean (P<0.024) values of CM and SR in
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+ both total and net scores
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+ Articles from International Journal of Yoga are provided here courtesy of Medknow Publications
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+ ***@
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+ @