RESUMO
Background Yoga is very effective in improving health especially cardio-respiratory fitness and also overall performance in adolescents. There are no large numbers of randomized controlled studies conducted on comparing yoga with physical activity for cardio-respiratory fitness in adolescent school children with large sample size. Objective Aerobic training is known to improve physical and cardio-respiratory fitness in children. Cardio-respiratory fitness is an important indicator of health in children. In this study we evaluate the effects of yoga versus physical exercise training on cardio-respiratory fitness in adolescent school children. Subjects Eight hundred two school students from 10 schools across four districts were recruited for this study. Methods In this prospective two arm RCT around 802 students were randomized to receive daily one hour yoga training (n = 411) or physical exercise (n = 391) over a period of two months. VO2 max was estimated using 20 m shuttle run test. However, yoga (n = 377) and physical exercise (n = 371) students contributed data to the analyses. Data was analysed using students t test. Results There was a significant improvement in VO2 max using 20 m Shuttle run test in both yoga (p < 0.001) and exercise (p < 0.001) group following intervention. There was no significant change in VO2 max between yoga and physical exercise group following intervention. However, in the subgroup with an above median cut-off of VO2 max; there was a significant improvement in yoga group compared to control group following intervention (p = 0.03). Conclusion The results suggest yoga can improve cardio-respiratory fitness and aerobic capacity as physical exercise intervention in adolescent school children.
RESUMO
BACKGROUND: The diagnosis and treatment of cancer poses severe psychologic distress that impacts functional quality of life. While cancer directed treatments are directed purely against tumor killing, interventions that reduce treatment related distress and improve quality of life are the need of the hour. Yoga is one such mind body intervention that is gaining popularity among cancer patients. METHOD: Several research studies in the last two decades unravel the benefits of yoga in terms of improved mood states, symptom reduction, stress reduction and improved quality of life apart from improving host factors that are known to affect survival in cancer patients. However, several metaanalysis and reviews show equivocal benefits for yoga. In this review, we will study the Yoga interventions in cancer patients with respect to expectations, benefits and risks and analyse the principles behind tailoring yoga interventions in cancer patients. RESULTS: The studies on Yoga show heterogeneity with varied types of Yoga Interventions, duration, exposure, practices and indications. It also elucidates the situational context for reaping benefits and cautions against its use in several others. However, there are several reviews and bibliometric analysis of effects of yoga; most of them have not enlarged the scope of their review to cover the basic principles behind use of these practices in cancer patients. CONCLUSION: This review offers insight into the principles and practice of yoga in cancer patients.
