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BACKGROUND: An earlier study showed that a week of yoga practice was useful in stress management after a natural calamity. Due to heavy rain and a rift on the banks of the Kosi river, in the state of Bihar in north India, there were floods with loss of life and property. A week of yoga practice was given to the survivors a month after the event and the effect was assessed.METHODS: Twenty-two volunteers (group average age +/- S.D, 31.5 +/- 7.5 years; all of them were males) were randomly assigned to two groups, yoga and a non-yoga wait-list control group. The yoga group practiced yoga for an hour daily while the control group continued with their routine activities. Both groups' heart rate variability, breath rate, and four symptoms of emotional distress using visual analog scales, were assessed on the first and eighth day of the program. RESULTS: There was a significant decrease in sadness in the yoga group (p < 0.05, paired t-test, post data compared to pre) and an increase in anxiety in the control group (p < 0.05, paired t-test, post data compared to pre). CONCLUSIONS: A week of yoga can reduce feelings of sadness and possibly prevent an increase in anxiety in flood survivors a month after the calamity. TRIAL REGISTRATION: Clinical Trials Registry of India: CTRI/2009/091/000285.

The present study was conducted to determine whether breathing through a particular nostril has a lateralized effect on hand grip strength. 130 right hand dominant, school children between 11 and 18 yrs of age were randomly assigned to 5 groups. Each group had a specific yoga practice in addition to the regular program for a 10 day yoga camp. The practices were: (1) right-, (2) left-, (3) alternate- nostril breathing (4), breath awareness and (5) practice of mudras. Hand grip strength of both hands was assessed initially and at the end of 10 days for all 5 groups. The right-, left- and alternate-nostril breathing groups had a significant increase in grip strength of both hands, ranging from 4.1% to 6.5%, at the end of the camp though without any lateralization effect. The breath awareness and mudra groups showed no change. Hence the present results suggest that yoga breathing through a particular nostril, or through alternate nostrils increases hand grip strength of both hands without lateralization.

The critical flicker fusion frequency (CFF) is the frequency at which a flickering stimulus is perceived to be steady, with higher values suggesting greater perceptual accuracy. The CFF was measured in two age-matched groups of healthy male volunteers whose ages ranged from 25 to 39 years, with 18 subjects in each group. After baseline assessments one group (yoga group) received yoga training, while the other group (control group) carried on with their routine activities. Yoga practices included asanas, pranayamas, kriyas, meditation, devotional sessions and lectures on the theory of yoga. After 10 days neither group showed a change in CFF. However, at 20 and at 30 days the yoga group showed significant increases in CFF by 11.1% and 14.9%, respectively (two factor ANOVA, Tukey multiple comparison test). The control group showed no change at the day 20 and day 30 followup.

A previous report described selective electrical activity of the cerebral hemispheres with uninostril breathing. In the present study, middle latency auditory evoked potentials (MLAEPs) were recorded from symmetrical scalp sites during the practice of uninostril yoga breathing. There were two sessions (40 min each) of right nostril yoga breathing (RNB) and of breath awareness (BAW), with (i) 'before', (ii) test (either RNB or BAW) and (iii) 'after' periods. The participants were 14 male volunteers aged between 18 and 33 years, and the setting was a yoga centre. MLAEPs were recorded from symmetrical scalp sites (C4 and C3). During RNB, the peak amplitudes of two negative components (viz. Na wave and Nb wave) were significantly increased on the right side. Increased peak amplitudes of Na and Nb waves suggested that RNB increased the number of neurons recruited on the right side, suggesting a possible application of RNB in certain psychiatric disorders with cerebral hemispheric imbalance.

BACKGROUND: Following a natural disaster, survivors are vulnerable to develop posttraumatic stress disorder (PTSD) and/ or depression.OBJECTIVES: (i) To screen survivors of the Bihar floods a month after the event to determine their scores in a screening questionnaire for PTSD and/ or depression and (ii) to correlate these scores with age and gender. MATERIALS AND METHODS: One thousand two hundred eighty-nine persons (645 females) who had been directly exposed to the floods in Bihar, India, in August 2008 were assessed. The Screening Questionnaire for Disaster Mental Health (SQD) was used to screen for PTSD and depression. STATISTICAL ANALYSIS: Separate two-factor ANOVAs were used to compare persons of both sexes and 5 different age groups for PTSD and depression scores. This was followed by post-hoc analysis for multiple comparisons. RESULTS: People over the age of 60 years had significantly higher scores for PTSD and depression compared to all groups (P< 0.05 for all comparisons). CONCLUSION: Following a natural disaster, older people appear more vulnerable to develop PTSD and depression. This should be taken into account in devising strategies for disaster relief.

BACKGROUND: Following a natural disaster, survivors are vulnerable to develop posttraumatic stress disorder (PTSD) and/ or depression.OBJECTIVES: (i) To screen survivors of the Bihar floods a month after the event to determine their scores in a screening questionnaire for PTSD and/ or depression and (ii) to correlate these scores with age and gender. MATERIALS AND METHODS: One thousand two hundred eighty-nine persons (645 females) who had been directly exposed to the floods in Bihar, India, in August 2008 were assessed. The Screening Questionnaire for Disaster Mental Health (SQD) was used to screen for PTSD and depression. STATISTICAL ANALYSIS: Separate two-factor ANOVAs were used to compare persons of both sexes and 5 different age groups for PTSD and depression scores. This was followed by post-hoc analysis for multiple comparisons. RESULTS: People over the age of 60 years had significantly higher scores for PTSD and depression compared to all groups (P< 0.05 for all comparisons). CONCLUSION: Following a natural disaster, older people appear more vulnerable to develop PTSD and depression. This should be taken into account in devising strategies for disaster relief.

CONTEXT: Substantial interest has begun to emerge around the implementation of yoga interventions in schools. Researchers have found that yoga practices may enhance skills such as self-regulation and prosocial behavior, and lead to improvements in students' performance. These researchers, therefore, have proposed that contemplative practices have the potential to play a crucial role in enhancing the quality of US public education. OBJECTIVE: The purpose of the present study was to provide a summary and comparison of school-based yoga programs in the United States. DESIGN: Online, listserv, and database searches were conducted to identify programs, and information was collected regarding each program's scope of work, curriculum characteristics, teacher-certification and training requirements, implementation models, modes of operation, and geographical regions. SETTING: The online, listserv, and database searches took place in Boston, MA, USA, and New Haven, CT, USA. RESULTS: Thirty-six programs were identified that offer yoga in more than 940 schools across the United States, and more than 5400 instructors have been trained by these programs to offer yoga in educational settings. Despite some variability in the exact mode of implementation, training requirements, locations served, and grades covered, the majority of the programs share a common goal of teaching 4 basic elements of yoga: (1) physical postures, (2) breathing exercises, (3) relaxation techniques, and (4) mindfulness and meditation practices. The programs also teach a variety of additional educational, social-emotional, and didactic techniques to enhance students' mental and physical health and behavior. CONCLUSIONS: The fact that the present study was able to find a relatively large number of formal, school-based yoga programs currently being implemented in the United States suggests that the programs may be acceptable and feasible to implement. The results also suggest that the popularity of school-based yoga programs may continue to grow.

ContextSubstantial interest has begun to emerge around the implementation of yoga interventions in schools. Researchers have found that yoga practices may enhance skills such as self-regulation and prosocial behavior, and lead to improvements in students’ performance. These researchers, therefore, have proposed that contemplative practices have the potential to play a crucial role in enhancing the quality of US public education. Objective The purpose of the present study was to provide a summary and comparison of school-based yoga programs in the United States. Design Online, listserv, and database searches were conducted to identify programs, and information was collected regarding each program’s scope of work, curriculum characteristics, teacher-certification and training requirements, implementation models, modes of operation, and geographical regions. Setting The online, listserv, and database searches took place in Boston, MA, USA, and New Haven, CT, USA. Results Thirty-six programs were identified that offer yoga in more than 940 schools across the United States, and more than 5400 instructors have been trained by these programs to offer yoga in educational settings. Despite some variability in the exact mode of implementation, training requirements, locations served, and grades covered, the majority of the programs share a common goal of teaching 4 basic elements of yoga: (1) physical postures, (2) breathing exercises, (3) relaxation techniques, and (4) mindfulness and meditation practices. The programs also teach a variety of additional educational, social-emotional, and didactic techniques to enhance students’ mental and physical health and behavior. Conclusions The fact that the present study was able to find a relatively large number of formal, school-based yoga programs currently being implemented in the United States suggests that the programs may be acceptable and feasible to implement. The results also suggest that the popularity of school-based yoga programs may continue to grow.

The practice of yoga is gaining in popularity with a wide range of practices. Recent research and descriptions from the ancient texts are often concurrent with regard to the effects of the practice, taking into account expected differences between modern scientific terms and those used in the original texts. Voluntarily regulated yoga breathing practices form a bridge between physical and mental changes. The voluntarily regulated yoga breathing has distinct effects on metabolism, the autonomic nervous system, higher brain functions, and mental state. The effects of meditation on the nervous system and mental state are even clearer.

<br><b>Introduction:</b> Physical activity is known to improve self-esteem of children. Low self-esteem causes distraction of attention which leads to decline in performance in attentional tasks. The performance of a child at school depends on multiple factors, a major factor being attention. Hence, the present study was designed to see (i) the effect 4½ months of yoga practice had on children's (a) performance in attentional tasks, (b) self-esteem and (ii) the correlation between yoga performance and (a) academic performance, (b) behavior with peers, (c) behavior with teachers, (d) punctuality, (e) participation in extra-curricular activities. <b>Methods:</b> Participants were 116 children with group mean age ± standard deviation; 10.2 ± 0.6 years. We assessed them for (i) self-esteem using Indian Adaptation of Battle's Self Esteem Inventory for Children and (ii) performance in attentional tasks using two different tests, i.e., six letter cancellation test (SLCT) and digit letter substitution test (DLST) and (iii) the teacher's rating scale which analyzed the teacher's assessment of the children's academic performance, behavior with peers, behavior with teachers, punctuality, yoga practice, and participation in extracurricular activities on an analog scale, before and after the intervention. Data were analyzed with PASW (SPSS Statistics 24) using the <i>t</i>-test for paired data. <b>Results:</b> There was a significant improvement in the scores of (i) SLCT (<i>P</i> < 0.001), (ii) DLST (<i>P</i> < 0.001), (iii) social self-esteem (<i>P</i> < 0.01), (iv) academic self-esteem (<i>P</i> < 0.001), and (v) total self-esteem (<i>P</i> < 0.001) after 60 min/day of yoga practice for 4½ months. Pearson correlation showed a positive correlation between yoga performance and the behavior with teachers (<i>r</i> = 0.221 and <i>P</i> < 0.05). <b>Conclusions:</b> Yoga practice is beneficial for school children as it improves attention, concentration, memory, motor speed, and self-esteem (social, academic and total). In addition, improved yoga performance improves behavior with teachers, thus improving discipline in school.<br>

<p>The performance scores of children (aged 11 to 16 years) in verbal and spatial memory tests were compared for two groups (n = 30, each), one attending a yoga camp and the other a fine arts camp. Both groups were assessed on the memory tasks initially and after ten days of their respective interventions. A control group (n = 30) was similarly studied to assess the test – retest effect. At the final assessment the yoga group showed a significant increase of 43% in spatial memory scores (Multivariate analysis, Tukey test), while the fine arts and control groups showed no change. The results suggest that yoga practice, including physical postures, yoga breathing, meditation</p>
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Background: Central obesity is associated with a higher risk of disease. Previously yoga reduced the BMI and waist circumference (WC) in persons with obesity. Additional anthropometric measures and indices predict the risk of developing diseases associated with central obesity. Hence the present study aimed to assess the effects of 12 weeks of yoga or nutritional advice on these measures. The secondary aim was to determine the changes in quality of life (QoL) given the importance of psychological factors in obesity. Material and Methods: Twenty-six adult females with central obesity in a yoga group (YOG) were compared with 26 adult females in a nutritional advice group (NAG). Yoga was practiced for 75 min/day, 3 days/week and included postures, breathing practices and guided relaxation. The NAG had one 45 min presentation/week on nutrition. Assessments were at baseline and 12 weeks. Data were analyzed with repeated measures ANOVA and post-hoc comparisons. Age-wise comparisons were with t-tests. Results: At baseline and 12 weeks NAG had higher triglycerides and VLDL than YOG. Other comparisons are within the two groups. After 12 weeks NAG showed a significant decrease in WC, hip circumference (HC), abdominal volume index (AVI), body roundness index (BRI), a significant increase in total cholesterol and LDL cholesterol. YOG had a significant decrease in WC, sagittal abdominal diameter, HC, BMI, WC/HC, a body shape index, conicity index, AVI, BRI, HDL cholesterol, and improved QoL. With age-wise analyses, in the 30-45 years age range the YOG showed most of the changes mentioned above whereas NAG showed no changes. In contrast for the 46-59 years age range most of the changes in the two groups were comparable. Conclusions: Yoga and nutritional advice with a diet plan can reduce anthropometric measures associated with diseases related to central obesity, with more changes in the YOG. This was greater for the 30-45 year age range, where the NAG showed no change; while changes were comparable for the two groups in the 46-59 year age range. Hence yoga may be especially useful for adult females with central obesity between 30 and 45 years of age. TRIAL REGISTRATION: (CTRI/2018/05/014077).

A month after the December 2004 tsunami the effect of a 1 week yoga program was evaluated on self rated fear, anxiety, sadness and disturbed sleep in 47 survivors in the Andaman Islands. Polygraph recordings of the heart rate, breath rate and skin resistance were also made. Among the 47 people, 31 were settlers from the mainland (i.e. India, ML group) and 16 were endogenous people (EP group). There was a significant decrease in self rated fear, anxiety, sadness and disturbed sleep in both groups, and in the heart and breath rate in the ML group, and in the breath rate alone in the EP group, following yoga (P < 0.05, t-test). This suggests that yoga practice may be useful in the management of stress following a natural disaster in people with widely differing social, cultural and spiritual beliefs.

A month after the December 2004 tsunami the effect of a 1 week yoga program was evaluated on self rated fear, anxiety, sadness and disturbed sleep in 47 survivors in the Andaman Islands. Polygraph recordings of the heart rate, breath rate and skin resistance were also made. Among the 47 people, 31 were settlers from the mainland (i.e. India, ML group) and 16 were endogenous people (EP group). There was a significant decrease in self rated fear, anxiety, sadness and disturbed sleep in both groups, and in the heart and breath rate in the ML group, and in the breath rate alone in the EP group, following yoga (P < 0.05, t-test). This suggests that yoga practice may be useful in the management of stress following a natural disaster in people with widely differing social, cultural and spiritual beliefs.

A month after the December 2004 tsunami the effect of a 1 week yoga program was evaluated on self rated fear, anxiety, sadness and disturbed sleep in 47 survivors in the Andaman Islands. Polygraph recordings of the heart rate, breath rate and skin resistance were also made. Among the 47 people, 31 were settlers from the mainland (i.e. India, ML group) and 16 were endogenous people (EP group). There was a significant decrease in self rated fear, anxiety, sadness and disturbed sleep in both groups, and in the heart and breath rate in the ML group, and in the breath rate alone in the EP group, following yoga (P < 0.05, t-test). This suggests that yoga practice may be useful in the management of stress following a natural disaster in people with widely differing social, cultural and spiritual beliefs.

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