Author(s): Sutanu Chakraborty, Ramnarayan Mishra, Thinles Chosphel, Mohit Nirwan, Anjana Pathak, Kaushik Halder, Dr. Mantu Saha

Abstract:
Background: There is paucity in published scientific work addressing effect of yoga training on healthy individual at altitude above sea level. Thus, this study was aimed to observe effects of one month yogic intervention on perceived stress and other responses of healthy Indian men at moderate altitude. Methods: Twenty two healthy Indian men aged 29.7 ± 4.3 years (Mean ± SD) participated in an one month yoga training program for 6 days in a week, during 6-7am in the morning, at an altitude of 1600m (5052ft). Their perceived stress score (PSS), resting heart rate (RHR), arterial blood pressure (SBP, DBP) and peripheral capillary oxygen saturation (SpO2%) were measured at baseline and after one month yoga practices. Metabolic analyzer was used to measure resting oxygen consumption (V̇O2rest), carbon dioxide production (V̇CO2rest), and energy expenditure (EEm). Graphpad prism 6 and IBM SPSS 21 were used to perform statistical tests as applicable to analyze the within subject changes for all the variables except age and height. Correlation coefficients of changes in between V̇O2rest, V̇CO2rest and EEm were also calculated.
Results: Most of the variables decreased significantly post one month yogic intervention and trends of reduction was observed for V̇O2rest (p=0.06), R (p=0.127) and EEm (p=0.058) after one month yoga training. Reduction in EEm was found to be significantly correlated with V̇O2rest and V̇CO2rest (p<0.001) respectively. Conclusion: One month yoga training at moderate altitude may reduce perceived stress, resting metabolism, and improve cardiovascular functions of healthy Indian men.

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