Background: There is paucity in published scientific work addressing effect of yoga training on h... more 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 f...
International Journal of Physiology, Nutrition and Physical Education
The benefits of any training depend on its duration. Long-term yogic practice will give more heal... more The benefits of any training depend on its duration. Long-term yogic practice will give more health benefits. It is necessary to define a minimum duration for practice to get its maximum effects. The purpose of the study was to identify the duration of yogic intervention requirements to induce significant changes in pulmonary function. The present study was undertaken on six participants (29-34 years of age, height 177 ± 7.21, body mass (74.7 ± 16.38) and BMI (25.31 ± 3.60); mean ± SD). They were undergoing yogic intervention for a total of one hour, five days a week for six weeks. Height, body mass, and pulmonary function test (PFT) involving measurements of Peak Expiratory Flow Rate (PEFR) forced vital capacity (FVC), forced expiratory volume in one second (FEV1), forced expiratory flow, FEF25-75, peak expiratory flow (PEF), maximum voluntary ventilation (MVV) was assessed. Pulmonary function measurements were done in a time point manner i.e., before the yogic intervention, 2nd week, 4th week, and 6th week of yogic intervention. The Difference at different time points was assessed by performing a one-way repeated measure ANOVA test. It was found significant enhancement at the 6th week of yogic intervention with p values like PEFR (p<0.001), PEF (p<0.001), FEF25-75% (p<0.05), FVC (p<0.01), MVV (p<0.001), FEV1 (p<0.01). It was observed that the six weeks of yogic intervention may be sufficient for significant enhancement in pulmonary function on physically fit healthy individuals.
Background: Intermittent hypoxic exposure (IHE) improves wellbeing and performance by modulating ... more Background: Intermittent hypoxic exposure (IHE) improves wellbeing and performance by modulating physiological processes. Though the effect of IHE on oxygen saturation (SpO2) and submaximal exercise performance (SEP) upon deployment of Indian military personnel at high altitude (HA) has not been studied yet. Objective: To observe the effect of IHE on SpO2and SEP among Indian military personnel at sea level (SL) and upon rapid induction to 3500 m altitude. The data obtained at HA were also compared with age and gender matched high altitude natives (HAN) and acclimatized lowlanders (ALR). Methods: Two hundred thirty three volunteers (age: 22 – 34 years) participated in the study. 210 participants were enrolled at SL and randomly divided into experimental (EXP) or control (CON) group. The EXP group were given IHE at 12% FIO2, 4 hrs. every day for 4 days at an altitude of 218 m. Both the groups were inducted to 3500 m by air. After IHE at SL and on day 7 at HA heart rate (HR), SpO2 and ...
After the initial outbreak of coronavirus disease 2019 (COVID-19) in China, the disease spreads r... more After the initial outbreak of coronavirus disease 2019 (COVID-19) in China, the disease spreads rapidly across the whole world. It is observed that there is a rampant rise in the rate of infection in spite of best possible precautionary measures taken into consideration against Corona. As there is no scientifically validated full proofed medicine against COVID-19 till date, the only possible way is prevention against this infection by improving self-immunity, mass immunisation and controlling non-communicable diseases, if suffered from. Another possible way from the prevention from this deadly virus is development of herd immunity, but the process takes time and can be fatal for people with higher age groups and with co-morbidities. Yoga, an Indian way of mind-body purification, has been reported to improve functionality of human physiological systems and to prevent diseases. It is also observed that yoga, being a low to moderate intensity physical activity, breathing maneuvers and ...
BackgroundWintering is associated with distress to humans who work in the isolated and confined e... more BackgroundWintering is associated with distress to humans who work in the isolated and confined environment of Antarctica and yoga has been proved helpful for coping with stress. Therefore, a study was conducted on 14 winter expedition members of Indian Scientific Antarctic Expedition (2016) to find out the effects of yoga on stress-related markers.MethodsParticipants were divided into yoga, and control (non-yoga) groups. The yoga group practiced yoga for 10 months (from January to October 2016) daily in the morning for an hour. The Resilience test questionnaire was administrated at baseline and endpoint of the study. Blood samples were collected during the study at different intervals for the estimation of 8-hydroxydeoxyguanosine (8-OHdG), brain-derived neurotrophic factor (BDNF), serotonin and cortisol using ELISA.ResultsA trend of improvement was observed in the resilience test score in the yoga group. From January to October, 8-OHdG serum values in the yoga group declined by 55....
The study was aimed to evaluate and compare resting and exercise induced metabolic responses betw... more The study was aimed to evaluate and compare resting and exercise induced metabolic responses between acclimatized high altitude pulmonary edema (HAPE) susceptible (HAPE-s) and HAPE resistance (HAPE-r) volunteers at sea level. A group of 14 Indian soldiers volunteered for this study, divided into two groups, (i) HAPE-s, with past history of HAPE [n1 = 7; age = 33.3 ± 4.5 (M ± SD)] and (ii) HAPE-r, with prior history of repeated exposure to high altitude and without suffering HAPE [n2 = 7; age = 31.9 ± 4.2 (M ± SD)]. Respiratory frequency (fR), tidal volume (T), minute ventilation (E), oxygen consumption (O2), carbon dioxide output (CO2), heart rate (HR) and respiratory quotient (RQ) were recorded on all the volunteers during resting and exercise conditions. Ventilatory equivalent for oxygen (EqO2) and oxygen pulse (O2P) were calculated. Significant differences were observed between HAPE-s and HAPE-r volunteers in fRrest (25.3% higher), O2Prest (23.7% lower), Emax (50.9% lower) (all P...
The study aimed to assess and compare the physical and physiological performances of Indian femal... more The study aimed to assess and compare the physical and physiological performances of Indian female college basketball players (BB) with sedentary females (SS) of same age group. Randomly selected 20 female college students, 10 each in 2 groups, BB (19.0 ± 0.8) and SS (19.7 ± 1.3) respectively, volunteered for this study. Standing height, body weight, resting blood pressure, resting and maximum heart rate (RHR and MHR respectively), resting oxygen consumption (VO 2rest), maximal aerobic capacity (VO 2max), anaerobic power, hand grip strength (HGS) and back leg strength (BLS) were recorded. Body surface area (BSA), body mass index (BMI), maximum oxygen pulse (O 2 P max), fatigue percentage and relative peak power output (RPP) were calculated. Significant difference was observed between BB and SS in body weight (P<0.001), BSA (P<0.01), BMI (P<0.001), HGS (left; P<0.05 and right; P<0.01) and BLS (P<0.01). No significant difference was observed in height and blood pressure among the players and sedentary females, while, significantly lower RHR (P<0.01), higher MHR (P<0.01), VO 2max (P<0.001), O 2 P max (P<0.01) were noted in sportswomen compared to sedentary females. Peak anaerobic power, average anaerobic power (both P<0.01) and RPP (P<0.001) of sportswomen was also significantly higher than the sedentary group. The study revealed that female college basketball players were physiologically potent than sedentary students of similar age group. It is once again substantiated the fact that involvement in sports or games like basketball, renders a person with better physiological health and physical fitness as compared to sedentary individuals.
Polar T3 syndrome is a common ailment for polar sojourners. It is characterised by abnormal fluct... more Polar T3 syndrome is a common ailment for polar sojourners. It is characterised by abnormal fluctuations of thyroid hormones during extended polar winter. A randomised controlled study was conducted on 14 winter expedition members of Indian Scientific Expedition (2016) to Antarctica by introducing customised yoga module. Blood samples were collected during January to October, 2016 at different intervals for the estimation of total thyroxine (TT4), total triiodothyronine (TT3), thyroid stimulating hormone and noradrenaline (NA) by ELISA. In October yoga group showed significant (p = 0.04) higher TT3 values (2.1 ng/ml ± 0.9; mean ± SD) as compared to the control (0.7 ng/ml ± 0.6). In October a significant difference (p=0.0085) was observed between yoga and control group for NA values (47.0 pg/ml ± 22.0 and 107 pg/ml ± 46.0). Thyroid response of control group at the end of the study revealed presence of polar T3 syndrome in control group. Results indicate that regular yoga practice hel...
Study aim: The present study was aimed to evaluate the effect of three months (90 min daily for f... more Study aim: The present study was aimed to evaluate the effect of three months (90 min daily for five days in a week) yogic practice on physiological and physical parameters of physically active service personnel. Material and methods: Healthy male volunteers (n=60) of age 27±3 years were randomly selected from paramilitary force of the country in this study. A pre designed yoga training course for 3 months comprising of Prayer, Suddhi kriyas, Yogasanas, Pranayamas, Meditation, Mudra and Bandh was imparted daily by certified yoga teacher in the morning for 90 min. Results: After three months of yogic training, body weight and body mass index did not change significantly, systolic blood pressure and mean blood pressure decreased significantly (p < 0.05). We did not found any significant change in heart rate diastolic blood pressure and respiratory rate. Breath-hold time and strength of the peripheral muscle (back and leg muscle strength) was increased significantly (p < 0.001), whereas peak expiratory flow rate did not change significantly. Anaerobic power was improved significantly (p < 0.05) by means of increasing peak power and average power. Conclusion: The present study revealed that the practice of selected yogic training for 3 months resulted improvement in health and performance of the physically active paramilitary force of Indian army.
Original Article the practice of asana, pranayama, mudra, bandha, shuddhi kriyas and meditation H... more Original Article the practice of asana, pranayama, mudra, bandha, shuddhi kriyas and meditation Hatha yoga help in the improvement of all aspects of health and physical performance. Regular practice of yoga has been reported to modulate cardiopulmonary function, muscular efficiency, physical performance and biochemical profile of individuals. Yoga could also improve the overall exercise performance by controlling pulmonary function, heart rate, metabolic rate, cardiovascular and anaerobic power and relaxation. In addition to these effects, yoga could also be helpful in relieving physical symptoms and perception of stress when compared with physical exercise. Practice of Hatha yogic asanas and pranayamas has a positive effect on the improvement of physical fitness by improving cardiorespiratory endurance and neuromuscular functioning.
PAL R, Singh S N, Halder K, Tomer OS, Mishra AB and Saha M. Effect of yogic practice on metabolis... more PAL R, Singh S N, Halder K, Tomer OS, Mishra AB and Saha M. Effect of yogic practice on metabolism and antioxidant -redox status of physically active males. Journal of physical activity and health 2015; 12(4): 579 -587.
Objective: The present study was carried out to evaluate the effect of three months yogic practic... more Objective: The present study was carried out to evaluate the effect of three months yogic practices on ventilatory functions. Methods: Sixty (n=60) healthy male volunteers (age range 21-33 years and height of 174.8 ± 3.52 cm) drawn randomly from BSF personnel participated in the study. Participants practiced yoga under supervision of professional yoga instructor, two hours daily five days a week, along with their daily routine activities. Standing height, weight and dynamic lung function tests viz. Forced Vital Capacity (FVC), Forced Expiratory Volume in 1 st second (FEV 1 ) and Maximum Voluntary Ventilation (MVV) were measured before and after 3 months of yoga training. Tiffeneau index (TI) was calculated before and after the said training. Results: After three months of yogic practice, there was no significant change in body weight with a trend of reduction. MVV increased significantly (P < 0.01) while the other parameters viz. FVC, FEV 1 and TI did not change significantly. Conclusion: Increase in MVV indicates that yogic practices improve the pulmonary capacity of practitioner which can help in enhancement of ventilatory functions.
Literature supports the impact of yogic practice on physical performance especially, the aerobic ... more Literature supports the impact of yogic practice on physical performance especially, the aerobic aspects. The study therefore attempted to compare the effect of 3 months yogic practice on aerobic and anaerobic capacity. Healthy young male volunteers of age 21–33 years, height 174.8±3.52 cm and weight 69.6±7.17 kg (mean±SD) were participated in this study (64 volunteers for anaerobic (n1=64) and 21
A group of 221 male healthy volunteers of Indian Army were the subjects of the study. The baselin... more A group of 221 male healthy volunteers of Indian Army were the subjects of the study. The baseline parameters of skeletal health were measured during their residency at an altitude of 3542 m. These subjects were then taken to an extreme altitude (EA, 5400-6700 m) where they stayed for about 4 months. The study parameters were repeated following their de-induction (DI) to 3542 m. On random selection, a subgroup was constituted from the above mentioned volunteers for detailed investigations on various bone turnover markers. Results of this study indicate a loss of body weight after DI from EA. The bone impairment was detected at the proximal phalanx, which is known to undergo early morpho-structural changes associated with bone resorption. The intact parathyroid hormone (i-PTH) levels showed a significant increase, while alkaline phosphatase (ALP) and bone specific alkaline phosphatase (BAP) activities declined significantly after DI from EA. This elevation in i-PTH might be required for maintenance of blood Ca level. 25 (OH) Vitamin D3 (25VitD) and calcitonin (CT) also showed a significant decline, which may suggest a negative impact on bone formation during sojourn at EA. The causes of deterioration of skeletal health at EA although are poorly understood but may be due to acute hypoxemia arising from extreme hypobaric hypoxia prevalent at extreme altitude.
Background: There is paucity in published scientific work addressing effect of yoga training on h... more 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 f...
International Journal of Physiology, Nutrition and Physical Education
The benefits of any training depend on its duration. Long-term yogic practice will give more heal... more The benefits of any training depend on its duration. Long-term yogic practice will give more health benefits. It is necessary to define a minimum duration for practice to get its maximum effects. The purpose of the study was to identify the duration of yogic intervention requirements to induce significant changes in pulmonary function. The present study was undertaken on six participants (29-34 years of age, height 177 ± 7.21, body mass (74.7 ± 16.38) and BMI (25.31 ± 3.60); mean ± SD). They were undergoing yogic intervention for a total of one hour, five days a week for six weeks. Height, body mass, and pulmonary function test (PFT) involving measurements of Peak Expiratory Flow Rate (PEFR) forced vital capacity (FVC), forced expiratory volume in one second (FEV1), forced expiratory flow, FEF25-75, peak expiratory flow (PEF), maximum voluntary ventilation (MVV) was assessed. Pulmonary function measurements were done in a time point manner i.e., before the yogic intervention, 2nd week, 4th week, and 6th week of yogic intervention. The Difference at different time points was assessed by performing a one-way repeated measure ANOVA test. It was found significant enhancement at the 6th week of yogic intervention with p values like PEFR (p<0.001), PEF (p<0.001), FEF25-75% (p<0.05), FVC (p<0.01), MVV (p<0.001), FEV1 (p<0.01). It was observed that the six weeks of yogic intervention may be sufficient for significant enhancement in pulmonary function on physically fit healthy individuals.
Background: Intermittent hypoxic exposure (IHE) improves wellbeing and performance by modulating ... more Background: Intermittent hypoxic exposure (IHE) improves wellbeing and performance by modulating physiological processes. Though the effect of IHE on oxygen saturation (SpO2) and submaximal exercise performance (SEP) upon deployment of Indian military personnel at high altitude (HA) has not been studied yet. Objective: To observe the effect of IHE on SpO2and SEP among Indian military personnel at sea level (SL) and upon rapid induction to 3500 m altitude. The data obtained at HA were also compared with age and gender matched high altitude natives (HAN) and acclimatized lowlanders (ALR). Methods: Two hundred thirty three volunteers (age: 22 – 34 years) participated in the study. 210 participants were enrolled at SL and randomly divided into experimental (EXP) or control (CON) group. The EXP group were given IHE at 12% FIO2, 4 hrs. every day for 4 days at an altitude of 218 m. Both the groups were inducted to 3500 m by air. After IHE at SL and on day 7 at HA heart rate (HR), SpO2 and ...
After the initial outbreak of coronavirus disease 2019 (COVID-19) in China, the disease spreads r... more After the initial outbreak of coronavirus disease 2019 (COVID-19) in China, the disease spreads rapidly across the whole world. It is observed that there is a rampant rise in the rate of infection in spite of best possible precautionary measures taken into consideration against Corona. As there is no scientifically validated full proofed medicine against COVID-19 till date, the only possible way is prevention against this infection by improving self-immunity, mass immunisation and controlling non-communicable diseases, if suffered from. Another possible way from the prevention from this deadly virus is development of herd immunity, but the process takes time and can be fatal for people with higher age groups and with co-morbidities. Yoga, an Indian way of mind-body purification, has been reported to improve functionality of human physiological systems and to prevent diseases. It is also observed that yoga, being a low to moderate intensity physical activity, breathing maneuvers and ...
BackgroundWintering is associated with distress to humans who work in the isolated and confined e... more BackgroundWintering is associated with distress to humans who work in the isolated and confined environment of Antarctica and yoga has been proved helpful for coping with stress. Therefore, a study was conducted on 14 winter expedition members of Indian Scientific Antarctic Expedition (2016) to find out the effects of yoga on stress-related markers.MethodsParticipants were divided into yoga, and control (non-yoga) groups. The yoga group practiced yoga for 10 months (from January to October 2016) daily in the morning for an hour. The Resilience test questionnaire was administrated at baseline and endpoint of the study. Blood samples were collected during the study at different intervals for the estimation of 8-hydroxydeoxyguanosine (8-OHdG), brain-derived neurotrophic factor (BDNF), serotonin and cortisol using ELISA.ResultsA trend of improvement was observed in the resilience test score in the yoga group. From January to October, 8-OHdG serum values in the yoga group declined by 55....
The study was aimed to evaluate and compare resting and exercise induced metabolic responses betw... more The study was aimed to evaluate and compare resting and exercise induced metabolic responses between acclimatized high altitude pulmonary edema (HAPE) susceptible (HAPE-s) and HAPE resistance (HAPE-r) volunteers at sea level. A group of 14 Indian soldiers volunteered for this study, divided into two groups, (i) HAPE-s, with past history of HAPE [n1 = 7; age = 33.3 ± 4.5 (M ± SD)] and (ii) HAPE-r, with prior history of repeated exposure to high altitude and without suffering HAPE [n2 = 7; age = 31.9 ± 4.2 (M ± SD)]. Respiratory frequency (fR), tidal volume (T), minute ventilation (E), oxygen consumption (O2), carbon dioxide output (CO2), heart rate (HR) and respiratory quotient (RQ) were recorded on all the volunteers during resting and exercise conditions. Ventilatory equivalent for oxygen (EqO2) and oxygen pulse (O2P) were calculated. Significant differences were observed between HAPE-s and HAPE-r volunteers in fRrest (25.3% higher), O2Prest (23.7% lower), Emax (50.9% lower) (all P...
The study aimed to assess and compare the physical and physiological performances of Indian femal... more The study aimed to assess and compare the physical and physiological performances of Indian female college basketball players (BB) with sedentary females (SS) of same age group. Randomly selected 20 female college students, 10 each in 2 groups, BB (19.0 ± 0.8) and SS (19.7 ± 1.3) respectively, volunteered for this study. Standing height, body weight, resting blood pressure, resting and maximum heart rate (RHR and MHR respectively), resting oxygen consumption (VO 2rest), maximal aerobic capacity (VO 2max), anaerobic power, hand grip strength (HGS) and back leg strength (BLS) were recorded. Body surface area (BSA), body mass index (BMI), maximum oxygen pulse (O 2 P max), fatigue percentage and relative peak power output (RPP) were calculated. Significant difference was observed between BB and SS in body weight (P<0.001), BSA (P<0.01), BMI (P<0.001), HGS (left; P<0.05 and right; P<0.01) and BLS (P<0.01). No significant difference was observed in height and blood pressure among the players and sedentary females, while, significantly lower RHR (P<0.01), higher MHR (P<0.01), VO 2max (P<0.001), O 2 P max (P<0.01) were noted in sportswomen compared to sedentary females. Peak anaerobic power, average anaerobic power (both P<0.01) and RPP (P<0.001) of sportswomen was also significantly higher than the sedentary group. The study revealed that female college basketball players were physiologically potent than sedentary students of similar age group. It is once again substantiated the fact that involvement in sports or games like basketball, renders a person with better physiological health and physical fitness as compared to sedentary individuals.
Polar T3 syndrome is a common ailment for polar sojourners. It is characterised by abnormal fluct... more Polar T3 syndrome is a common ailment for polar sojourners. It is characterised by abnormal fluctuations of thyroid hormones during extended polar winter. A randomised controlled study was conducted on 14 winter expedition members of Indian Scientific Expedition (2016) to Antarctica by introducing customised yoga module. Blood samples were collected during January to October, 2016 at different intervals for the estimation of total thyroxine (TT4), total triiodothyronine (TT3), thyroid stimulating hormone and noradrenaline (NA) by ELISA. In October yoga group showed significant (p = 0.04) higher TT3 values (2.1 ng/ml ± 0.9; mean ± SD) as compared to the control (0.7 ng/ml ± 0.6). In October a significant difference (p=0.0085) was observed between yoga and control group for NA values (47.0 pg/ml ± 22.0 and 107 pg/ml ± 46.0). Thyroid response of control group at the end of the study revealed presence of polar T3 syndrome in control group. Results indicate that regular yoga practice hel...
Study aim: The present study was aimed to evaluate the effect of three months (90 min daily for f... more Study aim: The present study was aimed to evaluate the effect of three months (90 min daily for five days in a week) yogic practice on physiological and physical parameters of physically active service personnel. Material and methods: Healthy male volunteers (n=60) of age 27±3 years were randomly selected from paramilitary force of the country in this study. A pre designed yoga training course for 3 months comprising of Prayer, Suddhi kriyas, Yogasanas, Pranayamas, Meditation, Mudra and Bandh was imparted daily by certified yoga teacher in the morning for 90 min. Results: After three months of yogic training, body weight and body mass index did not change significantly, systolic blood pressure and mean blood pressure decreased significantly (p < 0.05). We did not found any significant change in heart rate diastolic blood pressure and respiratory rate. Breath-hold time and strength of the peripheral muscle (back and leg muscle strength) was increased significantly (p < 0.001), whereas peak expiratory flow rate did not change significantly. Anaerobic power was improved significantly (p < 0.05) by means of increasing peak power and average power. Conclusion: The present study revealed that the practice of selected yogic training for 3 months resulted improvement in health and performance of the physically active paramilitary force of Indian army.
Original Article the practice of asana, pranayama, mudra, bandha, shuddhi kriyas and meditation H... more Original Article the practice of asana, pranayama, mudra, bandha, shuddhi kriyas and meditation Hatha yoga help in the improvement of all aspects of health and physical performance. Regular practice of yoga has been reported to modulate cardiopulmonary function, muscular efficiency, physical performance and biochemical profile of individuals. Yoga could also improve the overall exercise performance by controlling pulmonary function, heart rate, metabolic rate, cardiovascular and anaerobic power and relaxation. In addition to these effects, yoga could also be helpful in relieving physical symptoms and perception of stress when compared with physical exercise. Practice of Hatha yogic asanas and pranayamas has a positive effect on the improvement of physical fitness by improving cardiorespiratory endurance and neuromuscular functioning.
PAL R, Singh S N, Halder K, Tomer OS, Mishra AB and Saha M. Effect of yogic practice on metabolis... more PAL R, Singh S N, Halder K, Tomer OS, Mishra AB and Saha M. Effect of yogic practice on metabolism and antioxidant -redox status of physically active males. Journal of physical activity and health 2015; 12(4): 579 -587.
Objective: The present study was carried out to evaluate the effect of three months yogic practic... more Objective: The present study was carried out to evaluate the effect of three months yogic practices on ventilatory functions. Methods: Sixty (n=60) healthy male volunteers (age range 21-33 years and height of 174.8 ± 3.52 cm) drawn randomly from BSF personnel participated in the study. Participants practiced yoga under supervision of professional yoga instructor, two hours daily five days a week, along with their daily routine activities. Standing height, weight and dynamic lung function tests viz. Forced Vital Capacity (FVC), Forced Expiratory Volume in 1 st second (FEV 1 ) and Maximum Voluntary Ventilation (MVV) were measured before and after 3 months of yoga training. Tiffeneau index (TI) was calculated before and after the said training. Results: After three months of yogic practice, there was no significant change in body weight with a trend of reduction. MVV increased significantly (P < 0.01) while the other parameters viz. FVC, FEV 1 and TI did not change significantly. Conclusion: Increase in MVV indicates that yogic practices improve the pulmonary capacity of practitioner which can help in enhancement of ventilatory functions.
Literature supports the impact of yogic practice on physical performance especially, the aerobic ... more Literature supports the impact of yogic practice on physical performance especially, the aerobic aspects. The study therefore attempted to compare the effect of 3 months yogic practice on aerobic and anaerobic capacity. Healthy young male volunteers of age 21–33 years, height 174.8±3.52 cm and weight 69.6±7.17 kg (mean±SD) were participated in this study (64 volunteers for anaerobic (n1=64) and 21
A group of 221 male healthy volunteers of Indian Army were the subjects of the study. The baselin... more A group of 221 male healthy volunteers of Indian Army were the subjects of the study. The baseline parameters of skeletal health were measured during their residency at an altitude of 3542 m. These subjects were then taken to an extreme altitude (EA, 5400-6700 m) where they stayed for about 4 months. The study parameters were repeated following their de-induction (DI) to 3542 m. On random selection, a subgroup was constituted from the above mentioned volunteers for detailed investigations on various bone turnover markers. Results of this study indicate a loss of body weight after DI from EA. The bone impairment was detected at the proximal phalanx, which is known to undergo early morpho-structural changes associated with bone resorption. The intact parathyroid hormone (i-PTH) levels showed a significant increase, while alkaline phosphatase (ALP) and bone specific alkaline phosphatase (BAP) activities declined significantly after DI from EA. This elevation in i-PTH might be required for maintenance of blood Ca level. 25 (OH) Vitamin D3 (25VitD) and calcitonin (CT) also showed a significant decline, which may suggest a negative impact on bone formation during sojourn at EA. The causes of deterioration of skeletal health at EA although are poorly understood but may be due to acute hypoxemia arising from extreme hypobaric hypoxia prevalent at extreme altitude.
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