A comparative study of the effects of yoga and swimming on pulmonary functions in sedentary subjects
The modality of exercise that is most beneficial and easy to perform has become a topic of research. Yogic exercises are being widely studied; however, postulated benefits of yogic exercises over other exercises must be scientifically explored. Prospective randomized comparative studies involving yoga and other endurance exercises are conspicuous by their absence.
This study was, therefore, designed to assess and compare the effects of yogic training and swimming on pulmonary functions in normal healthy young volunteers.
100 volunteers were inducted into the study and randomly divided into two groups: One group underwent 12 weeks training for yogic exercises and other for swimming. The training and data acquisition was done in small cohorts of 10 subjects each. The subjects were assessed by studying their anthropometric parameters and pulmonary function parameters (FVC, FEV1/FVC ratio, PEFR, FEF25-75%, FEF 0.2-1.2 l and MVV) both before and after training.
All parameters showed statistically significant improvements after both yoga and swimming. Comparison of these improvements for different parameters statistically analyzed by unpaired t test or Mann Whitney U test depicted a statistically better improvement in FVC, FEF25-75% and MVV with swimming as compared to yogic exercises.
The output of this study gives slight edge to swimming as a preferred modality of exercise though either yoga or swimming can be advocated as an exercise prescription as both the modalities cause significant improvement of respiratory health. However, other factors like ability of any exercise regime to keep continued motivation and interest of the trainees must be taken into account for exercise prescription.
Available from: Antonio Cuesta-Vargas
- "In a recent study, all pulmonary function parameters except FEV1/FVC improved significantly (p < 0.0001) in both yoga and swimming groups
. Besides, better pulmonary functions in subjects performing yoga as well as swimming are documented
[4,40]. Statistically significant changes in pulmonary function of FEV1/FVC and FEV1 values in people who performed regularly physical activity compared with sedentary people were shown
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ABSTRACT: The purpose is to assess cardiopulmonary function outcomes and quality of life values in inactive people that participated in the Physical Activity Promotion Programme (PAPP) against the control group that did not perform this program.
A total of 100 subjects of both genders participated in the randomized controlled trial with systematic random sampling; all were aged 55 and older, from Torremolinos, Spain. Participants either received (n = 50) the PAPP for 60 minutes, twice a week during three months or (n = 50) they received health education. The effectiveness of the intervention was measured by general state of health the Short Form 12 health survey questionnaire, and the quality of life was determined with the EuroQoL-5D questionnaire. Cardiopulmonary function was measured with a spirometry and a walking test according to the Bruce protocol.
This pilot study had a significant impact on the quality of life (p = 0.05) in men, which increased. However, the quality of life in women did not improve. The average changes in the lung and cardiovascular function was not significant between groups.
Changes in the quality of life measured with EQ-5D in the group of men who carried out the PAPP were statistically significant when comparing between groups. However changes in cardiopulmonary function were not as relevant when comparing between groups. There was a significant effect within each group in the pulmonary outcomes of values in men, within the experimental group.
Developed by the University of Málaga. ClinicalTrials.gov ID: NCT01172483.
BMC Public Health 02/2013; 13(1):127. DOI:10.1186/1471-2458-13-127 · 2.26 Impact Factor
Available from: Gerald Stanley Zavorsky
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ABSTRACT: Respiratory muscle fatigue can negatively impact athletic performance, but swimming has beneficial effects on the respiratory system and may reduce susceptibility to fatigue. Limiting breath frequency during swimming further stresses the respiratory system through hypercapnia and mechanical loading and may lead to appreciable improvements in respiratory muscle strength. This study assessed the effects of controlled-frequency breath (CFB) swimming on pulmonary function. Eighteen subjects (10 men), average (standard deviation) age 25 (6) years, body mass index 24.4 (3.7) kg/m(2) , underwent baseline testing to assess pulmonary function, running economy, aerobic capacity, and swimming performance. Subjects were then randomized to either CFB or stroke-matched (SM) condition. Subjects completed 12 training sessions, in which CFB subjects took two breaths per length and SM subjects took seven. Post-training, maximum expiratory pressure improved by 11% (15) for all 18 subjects (P < 0.05) while maximum inspiratory pressure was unchanged. Running economy improved by 6 (9)% in CFB following training (P < 0.05). Forced vital capacity increased by 4% (4) in SM (P < 0.05) and was unchanged in CFB. These findings suggest that limiting breath frequency during swimming may improve muscular oxygen utilization during terrestrial exercise in novice swimmers.
Scandinavian Journal of Medicine and Science in Sports 10/2013; DOI:10.1111/sms.12140 · 2.90 Impact Factor
Available from: Mr. RAMESWAR PAL
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ABSTRACT: BACKGROUND: This study was conducted to evaluate the effects of yogic practice on resting metabolism and redox status.
METHODS: The study was conducted on 64 physically trained male volunteers selected randomly at the Air Force Academy. The yoga group (n = 34) practiced yogasana, pranayama, and meditation for 3 months (February-May 2011) and the control group (n = 30) performed physical training. Antioxidant variables in blood samples along with physiological parameters were estimated before and after 3 months.
RESULTS: No significant difference was noted between baseline data of the control group and yoga group. Reduced glutathione, vitamin C, and vitamin E; the ratio of reduced to oxidized glutathione; and total antioxidant status were increased significantly following yogic practice. Activities of superoxide dismutase, glutathione S-transferase, and glutathione reductase were significantly increased, whereas activity of glutathione peroxidase was significantly decreased following yogic practice. Oxidized glutathione decreased significantly following yogic practice. A nonsignificant decrease of hydroperoxides, protein carbonyl, malondialdehyde, and blood sugar was noted in the yoga group. Carbon dioxide elimination and peripheral oxygen saturation increased significantly following yogic practice. No significant changes were observed in the control group following 3 months of physical training.
CONCLUSIONS: Regular yogic practice can improve resting metabolism and redox status of the practitioner.
Journal of Physical Activity and Health 05/2014; 12(4):579 - 587. DOI:10.1123/jpah.2013-0059 · 1.95 Impact Factor
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