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ORIGINAL ARTICLES
Effect of yoga therapy in reversible inguinal hernia: A quasi experimental study
Jagatheesan Alagesan, Suthakar Venkatachalam, Anandbabu Ramadass, Sankar B Mani
January-June 2012, 5(1):16-20
DOI
:10.4103/0973-6131.91697
PMID
:22346061
Background:
Hernia is an abnormal protrusion of an organ or tissue through a defect in its surrounding walls which most commonly involves the abdominal wall, particularly the inguinal region. The treatment options for hernia ranges from simple exercises to modern surgeries. The effect of yoga therapy is not scientifically examined for reversible inguinal hernia and hence this study is undertaken with the aim to test the effect of selected asanas in reversible inguinal hernia.
Materials and Methods:
A quasi experimental trail of 19 males through consecutive sampling was done with selected asanas for three months and the outcome was measured by a questionnaire focusing on pain, aggravating factors, relieving factors and frequency of occurrence of symptoms of hernia.
Results:
The pre and post interventional data were compared statistically and found significant reduction of symptoms with
P
≤0.001 in pain, frequency of occurrence and aggravating factors. The relieving factors showed significant increase with
P
≤0.001.
Conclusion:
Yoga therapy with selected asanas is effective in the treatment of reversible inguinal hernia.
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Effect of yoga on academic performance in relation to stress
Amit Kauts, Neelam Sharma
January-June 2009, 2(1):39-43
DOI
:10.4103/0973-6131.53860
PMID
:21234215
Background:
Academic performance is concerned with the quantity and quality of learning attained in a subject or group of subjects after a long period of instruction. Excessive stress hampers students' performance. Improvement in academic performance and alertness has been reported in several yogic studies.
Aims and Objectives:
The main objective of the study was to assess the effect of yoga on academic performance in relation to stress.
Materials and Methods:
The study started with 800 adolescent students; 159 high-stress students and 142 low-stress students were selected on the basis of scores obtained through Stress Battery. Experimental group and control group were given pre test in three subjects, i.e., Mathematics, Science, and Social Studies. A yoga module consisting of yoga asanas, pranayama, meditation, and a value orientation program was administered on experimental group for 7 weeks. The experimental and control groups were post-tested for their performance on the three subjects mentioned above.
Results:
The results show that the students, who practiced yoga performed better in academics. The study further shows that low-stress students performed better than high-stress students, meaning thereby that stress affects the students' performance.
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7,551
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REVIEW ARTICLE
Modulation of immune responses in stress by Yoga
Sarika Arora, Jayashree Bhattacharjee
July-December 2008, 1(2):45-55
DOI
:10.4103/0973-6131.43541
PMID
:21829284
Stress is a constant factor in today's fastpaced life that can jeopardize our health if left unchecked. It is only in the last half century that the role of stress in every ailment from the common cold to AIDS has been emphasized, and the mechanisms involved in this process have been studied. Stress influences the immune response presumably through the activation of the hypothalamic-pituitary adrenal axis, hypothalamic pituitary-gonadal axis, and the sympathetic-adrenal-medullary system. Various neurotransmitters, neuropeptides, hormones, and cytokines mediate these complex bidirectional interactions between the central nervous system (CNS) and the immune system. The effects of stress on the immune responses result in alterations in the number of immune cells and cytokine dysregulation. Various stress management strategies such as meditation, yoga, hypnosis, and muscle relaxation have been shown to reduce the psychological and physiological effects of stress in cancers and HIV infection. This review aims to discuss the effect of stress on the immune system and examine how relaxation techniques such as Yoga and meditation could regulate the cytokine levels and hence, the immune responses during stress.
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6,461
1,024
1
Exploring the therapeutic effects of yoga and its ability to increase quality of life
Catherine Woodyard
July-December 2011, 4(2):49-54
DOI
:10.4103/0973-6131.85485
PMID
:22022122
The objective of this study is to assess the findings of selected articles regarding the therapeutic effects of yoga and to provide a comprehensive review of the benefits of regular yoga practice. As participation rates in mind-body fitness programs such as yoga continue to increase, it is important for health care professionals to be informed about the nature of yoga and the evidence of its many therapeutic effects. Thus, this manuscript provides information regarding the therapeutic effects of yoga as it has been studied in various populations concerning a multitude of different ailments and conditions. Therapeutic yoga is defined as the application of yoga postures and practice to the treatment of health conditions and involves instruction in yogic practices and teachings to prevent reduce or alleviate structural, physiological, emotional and spiritual pain, suffering or limitations. Results from this study show that yogic practices enhance muscular strength and body flexibility, promote and improve respiratory and cardiovascular function, promote recovery from and treatment of addiction, reduce stress, anxiety, depression, and chronic pain, improve sleep patterns, and enhance overall well-being and quality of life.
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15
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ORIGINAL ARTICLES
Brainstem auditory-evoked potentials in two meditative mental states
Sanjay Kumar, HR Nagendra, KV Naveen, NK Manjunath, Shirley Telles
July-December 2010, 3(2):37-41
DOI
:10.4103/0973-6131.72628
PMID
:21170228
Context:
Practicing mental repetition of "OM" has been shown to cause significant changes in the middle latency auditory-evoked potentials, which suggests that it facilitates the neural activity at the mesencephalic or diencephalic levels.
Aims:
The aim of the study was to study the brainstem auditory-evoked potentials (BAEP) in two meditation states based on consciousness, viz.
dharana
, and
dhyana
.
Materials and Methods:
Thirty subjects were selected, with ages ranging from 20 to 55 years (M=29.1; ±SD=6.5 years) who had a minimum of 6 months experience in meditating "OM". Each subject was assessed in four sessions, i.e. two meditation and two control sessions. The two control sessions were: (i)
ekagrata
, i.e. single-topic lecture on meditation and (ii)
cancalata
, i.e. non-targeted thinking. The two meditation sessions were: (i)
dharana
, i.e. focusing on the symbol "OM" and (ii)
dhyana
, i.e. effortless single-thought state "OM". All four sessions were recorded on four different days and consisted of three states, i.e. pre, during and post.
Results:
The present results showed that the wave V peak latency significantly increased in
cancalata
,
ekagrata
and
dharana
, but no change occurred during the
dhyana
session.
Conclusions:
These results suggested that information transmission along the auditory pathway is delayed during
cancalata
,
ekagrata
and
dharana
, but there is no change during
dhyana
. It may be said that auditory information transmission was delayed at the inferior collicular level as the wave V corresponds to the tectum.
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51
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Here and now: Yoga in Israeli schools
Miron Ehud, Bar-Dov An, Strulov Avshalom
July-December 2010, 3(2):42-47
DOI
:10.4103/0973-6131.72629
PMID
:21170229
Context:
In the aftermath of the Second Lebanon War, a project was initiated and designed to reduce tension in the children living in the area under bombardment.
Aims:
To assess the impact of yoga intervention in a group of Israeli school children residing in the region affected by the Second Lebanon War.
Settings and Design:
The study population included 122 school children aged 8-12 years in two elementary schools in Safed (
n
=55 and
n
=67, respectively) and their teachers (
n
=6). The children attended the third grade (
n
=28), fourth grade (
n
=42) and sixth grade (
n
=52). Inclusion in the study was based on the school principal's consent to participate in the program.
Materials and Methods:
Assessment was conducted using three questionnaires that have been previously validated in international studies and translated to Hebrew.
Statistical Analysis Used:
Statistical analysis of the results included Wilcoxon Signed Ranked Tests for pre- and post-intervention comparisons and the Kruskall-Wallis test for teacher and child cross-comparisons.
Results:
Based on the questionnaires completed by the children and their teachers, we found that the teachers reported many statistically significant improvements in the children's concentration, mood and ability to function under pressure, although the children themselves were unaware of any change in their behavior. Enjoyment was reported by all participants, and almost all expressed an interest in continuing to practice yoga during school hours. We conclude that participation in yoga classes may be both enjoyable and beneficial to children living in stressful conditions.
Conclusions:
The study indicates that yoga may be beneficial as an intervention for children in postwar stress situations.
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49
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EDITORIAL
Psychiatric disorders and holistic therapies
Thaiyar M Srinivasan
July-December 2010, 3(2):35-36
DOI
:10.4103/0973-6131.72627
PMID
:21170227
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6,864
66
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ORIGINAL ARTICLES
Neurohemodynamic correlates of 'OM' chanting: A pilot functional magnetic resonance imaging study
Bangalore G Kalyani, Ganesan Venkatasubramanian, Rashmi Arasappa, Naren P Rao, Sunil V Kalmady, Rishikesh V Behere, Hariprasad Rao, Mandapati K Vasudev, Bangalore N Gangadhar
January-June 2011, 4(1):3-6
DOI
:10.4103/0973-6131.78171
PMID
:21654968
Background:
A sensation of vibration is experienced during audible 'OM' chanting. This has the potential for vagus nerve stimulation through its auricular branches and the effects on the brain thereof. The neurohemodynamic correlates of 'OM' chanting are yet to be explored.
Materials and Methods:
Using functional Magnetic Resonance Imaging (fMRI), the neurohemodynamic correlates of audible 'OM' chanting were examined in right-handed healthy volunteers (
n
=12; nine men). The 'OM' chanting condition was compared with pronunciation of "ssss" as well as a rest state. fMRI analysis was done using Statistical Parametric Mapping 5 (SPM5).
Results:
In this study, significant deactivation was observed bilaterally during 'OM' chanting in comparison to the resting brain state in bilateral orbitofrontal, anterior cingulate, parahippocampal gyri, thalami and hippocampi. The right amygdala too demonstrated significant deactivation. No significant activation was observed during 'OM' chanting. In contrast, neither activation nor deactivation occurred in these brain regions during the comparative task - namely the 'ssss' pronunciation condition.
Conclusion:
The neurohemodynamic correlates of 'OM' chanting indicate limbic deactivation. As similar observations have been recorded with vagus nerve stimulation treatment used in depression and epilepsy, the study findings argue for a potential role of this 'OM' chanting in clinical practice.
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Investigating paranormal phenomena: Functional brain imaging of telepathy
Ganesan Venkatasubramanian, Peruvumba N Jayakumar, Hongasandra R Nagendra, Dindagur Nagaraja, R Deeptha, Bangalore N Gangadhar
July-December 2008, 1(2):66-71
DOI
:10.4103/0973-6131.43543
PMID
:21829287
Aim:
"Telepathy" is defined as "the communication of impressions of any kind from one mind to another, independently of the recognized channels of sense". Meta-analyses of "ganzfield" studies as well as "card-guessing task" studies provide compelling evidence for the existence of telepathic phenomena. The aim of this study was to elucidate the neural basis of telepathy by examining an individual with this special ability.
Materials and Methods:
Using functional MRI, we examined a famous "mentalist" while he was performing a telepathic task in a 1.5 T scanner. A matched control subject without this special ability was also examined under similar conditions.
Results:
The mentalist demonstrated significant activation of the right parahippocampal gyrus after successful performance of a telepathic task. The comparison subject, who did not show any telepathic ability, demonstrated significant activation of the left inferior frontal gyrus.
Conclusions:
The findings of this study are suggestive of a limbic basis for telepathy and warrant further systematic research.
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The effect of various breathing exercises (pranayama) in patients with bronchial asthma of mild to moderate severity
Tarun Saxena, Manjari Saxena
January-June 2009, 2(1):22-25
DOI
:10.4103/0973-6131.53838
PMID
:21234211
Background/Aim:
The incidence of bronchial asthma is on increase. Chemotherapy is helpful during early course of the disease, but later on morbidity and mortality increases. The efficacy of yoga therapy though appreciated is yet to be defined and modified. Aim: To study the effect of breathing exercises (
pranayama
) in patients with bronchial asthma of mild to moderate severity.
Materials and Methods:
Fifty cases of bronchial asthma (Forced Expiratory Volume in one second (FEV1) > 70%) were studied for 12 weeks. Patients were allocated to two groups: group A and group B (control group). Patients in group A were treated with breathing exercises (deep breathing,
Brahmari
, and
Omkara
, etc.) for 20 minutes twice daily for a period of 12 weeks. Patients were trained to perform
Omkara
at high pitch (forceful) with prolonged exhalation as compared to normal
Omkara
. Group B was treated with meditation for 20 minutes twice daily for a period of 12 weeks. Subjective assessment, FEV1%, and Peak Expiratory Flow Rate (PEFR) were done in each case initially and after 12 weeks.
Results:
After 12 weeks, group A subjects had significant improvement in symptoms, FEV1, and PEFR as compared to group B subjects.
Conclusion:
Breathing exercises (
pranayama
), mainly expiratory exercises, improved lung function subjectively and objectively and should be regular part of therapy.
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Effect of yoga on mental health: Comparative study between young and senior subjects in Japan
Derebail Gururaja, Kaori Harano, Ikenaga Toyotake, Haruo Kobayashi
January-June 2011, 4(1):7-12
DOI
:10.4103/0973-6131.78173
PMID
:21654969
Background
: Japan has a large number of senior citizens. Yoga can be wisely applied in old age care. There is no any age restriction to practice yoga. The effect may differ by age. There is a need to study the mechanism of action of yoga with respect to age.
Aim:
This study was conducted in Japan to find the effect of yoga on mental health between young and senior people.
Materials and Methods:
Twenty-five normal healthy volunteers of both sexes were divided into two groups according to age. Fifteen participants of the age group between 65 to 75 years and 10 participants of the age group between 20 to 30 years were selected. This study was approved by the ethical committee of Kawasaki University of Medical Welfare. Selected individuals were subjected to 90 min of yoga classes once or twice a week for a month. Salivary amylase activity was assessed before and after yoga practice. State Trait Anxiety Inventory (STAI) was given before yoga on the first day and after one month of practice to assess the change in State anxiety and Trait anxiety.
Results
: Senior group - Salivary amylase activity decreased from 111.2±42.7 to 83.48±39.5 kU/L [average±standard deviation]. Younger group - Salivary amylase activity reduced from 60.74±31.8 to 42.39±24 kU/L. Senior group - State anxiety score decreased from 41.13 ±8.43 to 30.8±6.49, Trait anxiety score reduced from 45.66±7.5 to 40.73±8.3. Younger group - State anxiety score reduced from 38.7±4.8 to 30.8±4.1,Trait anxiety score reduced from 46.2±7.9 to 42.9±9.1. Changes were statistically significant with
P
<0.05.
Conclusion:
Decrease in Salivary amylase activity may be due to reduction in sympathetic response. Reduction in State and Trait anxiety score signifies that yoga has both immediate as well as long-term effect on anxiety reduction. Thus yoga helps to improve the mental health in both the groups.
[ABSTRACT]
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5,794
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Effect of yoga on quality of life of CLBP patients: A randomized control study
Padmini Tekur, Singphow Chametcha, Ramarao Nagendra Hongasandra, Nagarathna Raghuram
January-June 2010, 3(1):10-17
DOI
:10.4103/0973-6131.66773
PMID
:20948896
Context:
In two of the earlier Randomized Control Trials on yoga for chronic lower back pain (CLBP), 12 to 16 weeks of intervention were found effective in reducing pain and disability.
Aim:
To study the efficacy of a residential short term intensive yoga program on quality of life in CLBP.
Materials and Methods:
About 80 patients with CLBP (females 37) registered for a week long treatment at SVYASA Holistic Health Centre in Bengaluru, India. They were randomized into two groups (40 each). The yoga group practiced a specific module for CLBP comprising of asanas (physical postures), pranayama (breathing practices), meditation and lectures on yoga philosophy. The control group practiced physical therapy exercises for back pain. Perceived stress scale (PSS) was used to measure baseline stress levels. Outcome measures were WHOQOL Bref for quality of life and straight leg raising test (SLR) using a Goniometer.
Results:
There were significant negative correlations (Pearson's,
P
<0.005, r>0.30) between baseline PSS with all four domains and the total score of WHOQOLBref. All the four domains' WHOQOLBref improved in the yoga group (repeated measures ANOVA
P
=0.001) with significant group*time interaction (
P
<0.05) and differences between groups (
P
<0.01). SLR increased in both groups (
P
=0.001) with higher increase in yoga (31.1 % right, 28.4 % left) than control (18.7% right, 21.5 % left) group with significant group*time interaction (SLR right leg
P
=0.044).
Conclusion:
In CLBP, a negative correlation exists between stress and quality of life. Yoga increases quality of life and spinal flexibility better than physical therapy exercises.
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Effect of yoga relaxation techniques on performance of digit-letter substitution task by teenagers
Balaram Pradhan, HR Nagendra
January-June 2009, 2(1):30-34
DOI
:10.4103/0973-6131.43293
PMID
:21234213
Background/Aims
: Memory and selective attention are important skills for academic and professional performance. Techniques to improve these skills are not taught either in education or company training courses. Any system which can systematically improve these skills will be of value in schools, universities, and workplaces. Aims:To investigate possible improvements in memory and selective attention, as measured by the Digit-Letter Substitution Task (DLST), due to practice of Cyclic Meditation (CM), a yoga relaxation technique, as compared to Supine Rest (SR).
Materials and Methods
: Subjects consisted of 253 school students, 156 boys, 97 girls, in the age range 13-16 years, who were attending a 10-day yoga training course during summer vacation. The selected subjects had English as their medium of instruction in school and they acted as their own controls. They were allocated to two groups, and tested on the DLST, immediately before and after 22.5 minutes practice of CM on one day, and immediately before and after an equal period of SR on the other day. The first group performed CM on day 9 and SR on day 10. For the second group, the order was reversed.
Results
: Within each group pre-post test differences were significant for both the relaxation techniques. The magnitude of net score improvement was greater after SR (7.85%) compared to CM (3.95%). Significance levels were
P
< 0.4 x 10
-9
for SR and
P
< 0.1 x 10
-3
for CM. The number of wrong attempts also increased significantly on both interventions, even after removing two outlier data points on day 1 in the SR group.
Conclusions:
Both CM and SR lead to improvement in performance on the DLST. However, these relaxation techniques lead to more wrong cancellation errors.
[ABSTRACT]
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2
Effect of an integrated approach of yoga therapy on quality of life in osteoarthritis of the knee joint: A randomized control study
John Ebnezar, Raghuram Nagarathna, Yogitha Bali, Hongasandra Ramarao Nagendra
July-December 2011, 4(2):55-63
DOI
:10.4103/0973-6131.85486
PMID
:22022123
Aim:
This study was designed to evaluate the efficacy of addition of integrated yoga therapy to therapeutic exercises in osteoarthritis (OA) of knee joints.
Materials and Methods:
This was a prospective randomized active control trial. A total of t participants with OA of knee joints between 35 and 80 years (yoga, 59.56 ± 9.54 and control, 59.42 ± 10.66) from the outpatient department of Dr. John's Orthopedic Center, Bengaluru, were randomly assigned to receive yoga or physiotherapy exercises after transcutaneous electrical stimulation and ultrasound treatment of the affected knee joints. Both groups practiced supervised intervention (40 min per day) for 2 weeks (6 days per week) with followup for 3 months. The module of integrated yoga consisted of
shithilikaranavyayama
(loosening and strengthening),
asanas
, relaxation techniques,
pranayama
, meditation and didactic lectures on
yama, niyama, jnana yoga, bhakti yoga
, and
karma yoga
for a healthy lifestyle change. The control group also had supervised physiotherapy exercises. A total of 118 (yoga) and 117 (control) were available for final analysis.
Results:
Significant differences were observed within (
P
< 0.001, Wilcoxon's) and between groups (
P
< 0.001, Mann-Whitney
U
-test) on all domains of the Short Form-36 (P < 0.004), with better results in the yoga group than in the control group, both at 15
th
day and 90
th
day.
Conclusion:
An integrated approach of yoga therapy is better than therapeutic exercises as an adjunct to transcutaneous electrical stimulation and ultrasound treatment in improving knee disability and quality of life in patients with OA knees.
[ABSTRACT]
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REVIEW ARTICLE
Meditation on
OM
: Relevance from ancient texts and contemporary science
Sanjay Kumar, HR Nagendra, NK Manjunath, KV Naveen, Shirley Telles
January-June 2010, 3(1):2-5
DOI
:10.4103/0973-6131.66771
PMID
:20948894
Background:
In Indian scriptures the sacred syllable
Om
is the primordial sound from which all other sounds and creation emerge which signifies the Supreme Power.
Aims:
To explore the significance of the syllable
OM
from ancient texts and effects of OM meditation in contemporary science.
Descriptions from ancient texts:
The descriptions of Om have been taken from four Upanisads (
Mundaka
,
Mandukya, Svetasvatara,
and
Katha
), the
Bhagvad Gita
, and Patanjali's Yoga
Sutras.
Scientific studies on
Om:
Autonomic and respiratory studies suggest that there is a combination of mental alertness with physiological rest during the practice of
Om
meditation. Evoked potentials studies suggest a decrease in sensory transmission time at the level of the auditory association cortices, along with recruitment of more neurons at mesencephalic-diencephalic levels.
Conclusion:
It is considered that a person who realizes
Om
, merges with the Absolute. Scientific studies on
Om
suggest that the mental repetition of
Om
results in physiological alertness, and increased sensitivity to sensory transmission.
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ORIGINAL ARTICLES
Effect of yoga therapy on reaction time, biochemical parameters and wellness score of peri and post-menopausal diabetic patients
Madanmohan , Ananda Balayogi Bhavanani, G Dayanidy, Zeena Sanjay, Ishwar V Basavaraddi
January-June 2012, 5(1):10-15
DOI
:10.4103/0973-6131.91696
PMID
:22346060
Background:
Yogic practices may aid in the prevention and management of diabetes mellitus (DM) and reduce cardiovascular complications in the population. The present study has been undertaken to evaluate the effect of yoga therapy on reaction time, biochemical parameters and wellness score of peri and post-menopausal diabetic patients.
Materials and Methods:
15 peri and post-menopausal patients receiving standard medical treatment for type 2 DM were recruited and reaction time and biochemical investigations were done before and after a comprehensive yoga therapy program comprising of three times a week sessions for six weeks. A post-intervention, retrospective wellness questionnaire compiled by ACYTER was used to evaluate the comparative feelings of the patients after the therapy program.
Results:
Yoga training reduced auditory reaction time (ART) from right as well as left hand, the decrease being statistically significant (
P
<0.05) for ART from the right hand. There was a significant (
P
<0.01) decrease in fasting and postprandial blood glucose levels as well as low density lipoprotein. The decrease in total cholesterol, triglycerides, and very low density lipoprotein and increase in high density lipoprotein was also statistically significant (
P
<0.05). All the lipid ratios showed desirable improvement with a decrease (
P
<0.01) of TC/HDL and LDL/HDL ratios and increase (
P
<0.05) in the HDL/LDL ratio.
Discussion
: Shortening of RT implies an improvement in the information processing and reflexes and is the first such report in diabetic patients. This has clinical significance and is worth further exploration with wider, well controlled, randomized studies in the diabetic population. Changes in blood glucose levels may be due to improved insulin sensitivity, decline in insulin resistance and increased sensitivity of the pancreatic b cells to glucose signals. Yoga improved the 'heart friendly' status of lipid profile in our subjects and as our participants were peri and post-menopausal, the decrease in cardiovascular risk profile is of greater significance. A comprehensive yoga therapy program has the potential to enhance the beneficial effects of standard medical management of diabetes mellitus and can be used as an effective complementary or integrative therapy program.
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A randomized control trial of the effect of yoga on
Gunas
(personality) and Self esteem in normal healthy volunteers
Sudheer Deshpande, HR Nagendra, Nagarathna Raghuram
January-June 2009, 2(1):13-21
DOI
:10.4103/0973-6131.43287
PMID
:21234210
Background/Aims:
To study the efficacy of yoga on
Gunas
(personality) and self esteem in normal adults through a randomized comparative study.
Materials and Methods:
Of the 1228 persons who attended motivational lectures, 226 subjects aged 18-71 years, of both sexes, who satisfied the inclusion and exclusion criteria, and who consented to participate in the study were randomly allocated into two groups. The Yoga (Y) group practised an integrated yoga module that included
asanas, pranayama,
meditation, notional correction, and devotional sessions. The comparison group practised mild to moderate physical exercises (PE). Both groups had supervised practices for one hour daily, six days a week, for eight weeks.
Guna
(personality) was assessed before and after eight weeks using the self-administered "The 'Gita" Inventory of Personality" (GIN) to assess
Sattva, Rajas,
and
Tamas
. Self esteem in terms of competency (COM), global self esteem (GSE), moral and self esteem (MSE), social esteem (SET), family self esteem (FSE), body and physical appearance (BPA), and the lie scale (LIS) were assessed using the self esteem questionnaire (SEQ).
Results:
The baseline scores for all domains for both the groups did not differ significantly (
P
> 0.05 independent samples t-test). There were significant pre-post improvements in all domains in both groups (
P
< 0.001 paired t-test). The number of persons who showed improvement in
Sattva
and decrease in
Tamas
was significant in the Y but not in the PE group (McNemar test). The effect size for self esteem in the Y group is greater than for the PE group in three out of seven domains.
Conclusions:
This randomized controlled study has shown the influence of Yoga on
Gunas
and self esteem in comparison to physical exercise.
[ABSTRACT]
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[CITATIONS]
[PubMed]
4,781
532
1
Measures of heart rate variability in women following a meditation technique
Hyorim An, Ravi Kulkarni, R Nagarathna, HR Nagendra
January-June 2010, 3(1):6-9
DOI
:10.4103/0973-6131.66772
PMID
:20948895
Certain time domain, frequency domain and a nonlinear measure of heart rate variability are studied in women following a meditative practice called cyclic meditation. The nonlinear measure studied is the sampling entropy. We show that there is an increase in the sampling entropy in the meditative group as compared to the control group. The time domain measure called pNNx is shown to be useful in distinguishing between the meditative state and a normal resting state.
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5,043
228
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A randomized control trial of the effect of yoga on verbal aggressiveness in normal healthy volunteers
Sudheer Deshpande, HR Nagendra, Nagarathna Raghuram
July-December 2008, 1(2):76-82
DOI
:10.4103/0973-6131.41034
PMID
:21829289
Objective:
To study the effect of yoga on verbal aggressiveness in normal healthy adults.
Methods
: Of the 1228 persons who attended introductory lectures, 226 subjects of both sexes who satisfied the inclusion and exclusion criteria and who consented to participate in the study were randomly allocated into two groups. These 226 subjects were between the ages of 17 and 62 years and 173/226 completed the eight weeks of intervention. The Yoga (Y) group practised an integrated yoga module that included asanas, pranayama, meditation, notional correction, and devotional sessions. The control group practised mild to moderate physical exercises (PE). Both groups had supervised practices (by trained experts) for one hour daily, six days a week for eight weeks. Verbal Aggressiveness was assessed before and after eight weeks using the self-administered Verbal Aggressive Scale.
Results
: The baseline score of the two groups did not differ significantly (
P
= 0.66). There was a significant decrease in verbal aggressiveness in the yoga group (
P
= 0.01 paired samples t-test) with a nonsignificant increase in the PE group. ANCOVA using pre- values as covariates showed a significant difference between the groups (
P
= 0.013). RMANOVA for interaction between the sexes or age groups in change scores were not significant.
Conclusions
: This study has demonstrated that an eight week intervention of an integrated yoga module decreased verbal aggressiveness in the yoga group (in males and those below 25 years of age), with a nonsignificant increase in the PE group.
[ABSTRACT]
[FULL TEXT]
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[CITATIONS]
[PubMed]
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394
1
Cardiovascular and metabolic effects of intensive
Hatha Yoga
training in middle-aged and older women from northern Mexico
Arnulfo Ramos-Jimenez, Rosa P Hernandez-Torres, Abraham Wall-Medrano, Maria DJ Munoz-Daw, Patricia V Torres-Duran, Marco A Juarez-Oropeza
July-December 2009, 2(2):49-54
DOI
:10.4103/0973-6131.60044
PMID
:20842264
Background:
Hatha Yoga (HY)
can be an alternative to improve physical activity in middle- aged and older women. However, conventional
HY (CHY)
exercising may not result in enough training stimulus to improve cardiovascular fitness. The purpose of this study was to evaluate the effect of an intensive
HY
intervention
(IHY)
on cardiovascular risk factors in middle-aged and older women from Northern Mexico.
Materials and Methods:
In this prospective quasiexperimental design, four middle-aged and nine older
CHY
practicing females (yoginis) were enrolled into an 11-week
IHY
program consisting of 5 sessions/week for 90 min (55 sessions). The program adherence,
asana
performance, and work intensity were assessed along the intervention. Anthropometric [body mass index (BMI), % body fat and ∑ skin folds], cardiovascular fitness [maximal expired air volume (VE
max
), maximal O
2
consumption (VO
2max
), maximal heart rate (HR
max
), systolic (BPs) and diastolic blood pressure (BPd)], biochemical [glucose, triacylglycerols (TAG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C)], and dietary parameters were evaluated before and after
IHY
.
Results:
Daily caloric intake (~1,916 kcal/day), program adherence (~85%), and exercising skills (
asana
performance) were similar in both middle-aged and older women. The
IHY
program did not modify any anthropometric measurements. However, it increased VO
2max
and VE
max
and HDL-C while TAG and LDL-C remained stable in both middle-aged and older groups (
P
< 0.01).
Conclusions:
The proposed
IHY
program improves different cardiovascular risk factors (namely VO
2max
and HDL-C) in middle-aged and older women.
[ABSTRACT]
[FULL TEXT]
[PDF]
[PubMed]
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EDITORIAL
Genetics, epigenetics, and pregenetics
Thaiyar M Srinivasan
July-December 2011, 4(2):47-48
DOI
:10.4103/0973-6131.85484
PMID
:22022121
[FULL TEXT]
[PDF]
[Mobile Full text]
[EPub]
[PubMed]
4,633
8
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ORIGINAL ARTICLES
Predictors of adherence to an Iyengar yoga program in breast cancer survivors
Amy E Speed-Andrews, Clare Stevinson, Lisa J Belanger, Judith J Mirus, Kerry S Courneya
January-June 2012, 5(1):3-9
DOI
:10.4103/0973-6131.91693
PMID
:22346059
Context:
Despite the known health benefits of physical activity, participation rates in cancer survivor groups remain low. Researchers have attempted to identify alternative modes of nontraditional physical activities that may increase participation and adherence rates. This study investigated the determinants of yoga in breast cancer survivors.
Aim:
To examine predictors of Iyengar yoga adherence in breast cancer survivors using the theory of planned behaviour. Settings and Design: Classes were held either in Campus Recreation facilities or at the Behavioral Medicine Fitness Center at the University of Alberta in Edmonton, Canada. The study was an evaluation of an existing yoga program.
Materials and Methods:
Twenty-three post adjuvant therapy breast cancer survivors participating in a community-based, twice weekly, 12 week Iyengar yoga program were asked to complete baseline measures of the theory of planned behavior, demographic, medical, health/fitness, and psychosocial variables. Adherence was measured by objective attendance to the classes.
Statistical Analysis:
We analyzed univariate associations between predictors and yoga adherence with independent
t
-tests.
Results:
Adherence to the Iyengar yoga program was 63.9% and was predicted by stronger intention (
P
<0.001), greater self-efficacy (
P
=0.003), more positive instrumental attitude (
P
=0.025), higher disease stage (
P
=0.018), yoga experience in the past year, (
P
=0.044), diagnosis of a second cancer (
P
=0.008), lower fatigue (
P
=0.037), and greater happiness (
P
=0.023).
Conclusions:
Adherence to Iyengar yoga in breast cancer survivors was strongly related to motivational variables from the theory of planned behaviour. Researchers attempting to improve yoga adherence in breast cancer survivors may benefit from targeting the key constructs in the theory of planned behaviour.
[ABSTRACT]
[FULL TEXT]
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[EPub]
[PubMed]
4,532
4
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Normative data for the letter-cancellation task in school children
Balaram Pradhan, HR Nagendra
July-December 2008, 1(2):72-75
DOI
:10.4103/0973-6131.43544
PMID
:21829288
Aims:
To establish the norms for the letter-cancellation task-a psychomotor performance task.
Materials and Methods:
Eight hundred nineteen school students were selected in the present study in an age range between nine and 16 years (
M
= 12.14;
SD
= 1.78 years). Subjects were assessed once for the cancellation task.
Results:
Both age and sex influenced performance on the SLCT; therefore, correction scores were obtained on the basis of these factors.
Conclusions:
The availability of Indian normative data for the SLCT will allow wider application of this test in clinical practice.
[ABSTRACT]
[FULL TEXT]
[PDF]
[PubMed]
4,245
232
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EDITORIAL
Is yoga an intervention?
TM Srinivasan
January-June 2012, 5(1):1-2
DOI
:10.4103/0973-6131.91690
PMID
:22346058
[FULL TEXT]
[PDF]
[Mobile Full text]
[EPub]
[PubMed]
4,459
17
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Defining Yoga
HR Nagendra
July-December 2008, 1(2):43-44
DOI
:10.4103/0973-6131.43540
PMID
:21829283
[FULL TEXT]
[PDF]
[PubMed]
3,648
813
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© International Journal of Yoga | Published by
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Online since 1
st
February, 2007