International Journal of Yoga
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ORIGINAL ARTICLE Table of Contents   
Year : 2014  |  Volume : 7  |  Issue : 1  |  Page : 41-47
Effect of yoga training and detraining on respiratory muscle strength in pre-pubertal children: A randomized trial


Department of Physiology, St. John's Medical College Hospital, Bangalore, India

Correspondence Address:
Crystal Dalia D'Souza
St John's Medical College, Sarjapura Road, John Nagar, Koramangala, Bangalore 560 034, Karanataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-6131.123478

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Objective: To evaluate the effect of yoga on forced vital capacity (FVC), forced expiratory volume in I st second (FEV1), peak expiratory flow rate (PEFR), FEVI/FVC ratio, and pulmonary pressures [maximum inspiratory pressure (MIP), maximum expiratory pressure (MEP) at the end of 3 months yoga training and the detraining effect on the above parameters in 7-9-years-old school going children. Materials and Methods: A total of 100 participants were recruited from a school in Bangalore. After baseline assessments, the participants were randomly allocated to either yoga or physical activity group. Intervention was given for 3 months, and measures of pulmonary function and pulmonary pressures were determined immediately post-intervention and at 3-months follow-up. Results: Although significant increase was observed in FVC, FEV1, PEFR, FEV1/FVC, MIP, and MEP at post-intervention, there were no significant differences between the two study groups after adjusting for height and age post training . However, MIP increased significantly in both the groups post-intervention, but the yoga group performed significantly higher than the PE group. The effects of training did not fade off even after 3 months of detraining. In fact, the FVC and FEV1 continued to increase significantly. A trend of decrease was observed in PEFR, MIP, and MEP. However, the values did not regress to the baseline value. Conclusions: This study suggests that practice of yoga for a short duration (3 months) of time can significantly improve respiratory muscle strength in pediatric population.


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