Abstract
Yoga is a safe and inexpensive intervention. There are an increasing number of clinical trials of yoga research. With the development of evidence based medicine, there are an increasing number of systematic reviews and meta-analysis summarizing effects of yoga with disease. It is difficult for clinicians or patients to find useful information about yoga therapy because of so many systematic reviews and meta-analysis which summarize effects of yoga with disease. Therefore, this review summarizes systematic reviews and meta-analysis of yoga therapy. This review found that yoga shows benefits in cardiovascular disease, knee osteoarthritis, metabolic syndrome, asthma, breast cancer, chronic heart failure, chronic low back pain, chronic neck pain, chronic obstructive pulmonary disease, stroke, dementia, type 2 diabetes mellitus, headaches, irritable bowel syndrome, menopausal symptoms and schizophrenia.
Keywords: Yoga; Intervention; Systematic review; Meta-analysis
Introduction
Yoga is a form of exercise which originates from ancient Indian philosophy. Yoga is used for the body, spirit and spirit of happiness and is as an intervention for various diseases. Yoga has been shown to improve executive functions, attention, intelligence, memory and concentration to people since it is as an intervention using physical postures, breathing exercises and meditation techniques [1-5]. Yoga is a safe and inexpensive intervention, and there are more and more clinical trials of yoga research. With the development of evidence based medicine, there are an increasing number of systematic reviews and meta-analysis summarizing the effects of yoga with disease, such as dementia, cardiovascular disease, breast cancer and so on. However, it is a challenge for clinicians or patients to find useful information about yoga therapy, with so numerous systematic reviews and metaanalysis summarizing the effects of yoga with disease. Therefore, this review summarizes systematic reviews and meta-analysis of yoga therapy.
Cardiovascular disease
Haider T, et al showed that the clear potential yoga can improve cardiovascular disease risk when it is as an alternative and complementary means [6]. Chu P, et al. showed that yoga can improve cardio-metabolic health [7]. Barrows JL, et al. showed that yoga is essential to reduce cardiovascular risk [8]. Thus, yoga shows benefits in cardiovascular disease.
Knee osteoarthritis
A systematic review reported that yoga as an intervention might have a positive effect in relieving pain and mobility on patients with knee osteoarthritis but there is unclear on quality of life [9].
Metabolic syndrome
A systematic review and meta-analysis found that yoga intervention may be safe and effective for reducing waist circumference and systolic blood pressure in metabolic syndrome patients who are not adhering to conventional forms of exercise [10].
Asthma
Yang ZY, et al. found that yoga may make marginal improvements in quality of life as well as symptoms in patients with asthma [11].
Breast cancer
Seven studies found that yoga shows benefits in patients with breast cancer [12-18].
Chronic heart failure
A meta-analysis found that yoga is good for patients with chronic heart failure [19].
Chronic low back pain
Three studies found that yoga shows benefits in patients with chronic low back pain [20-22].
Chronic neck pain
A systematic review found that yoga is probably favorable for patients with chronic neck pain [23].
Chronic obstructive pulmonary disease
A systematic review and meta-analysis showed that yoga is advantageous for improving lung function as well as exercise capacity and probably serves as an adjunct pulmonary rehabilitation program in patients with chronic obstructive pulmonary disease [24].
Stroke
A systematic review and meta-analysis found that yoga is probably advantageous for ameliorating some of the long-term consequences of stroke [25].
Dementia
A systematic review found that yoga is beneficial for patients with dementia [26].
Depression
Three studies found that yoga shows benefits in patients with depression [27-29].
Type 2 diabetes mellitus
Five studies found that yoga shows benefits in patients with type 2 diabetes mellitus [30-34].
Headaches
A systematic review found that yoga is probably beneficial for headaches [35].
Hypertension
Five studies found that yoga is an effective intervention for hypertension [36-40].
Irritable bowel syndrome
A systematic review found that yoga is an effective intervention for irritable bowel syndrome [41].
Menopausal symptoms
A systematic review found short-term effectiveness of yoga for patients with menopausal symptoms [42].
Schizophrenia
A systematic review found that yoga can improve the quality of life in patients with schizophrenia [43].
Conclusion
This review found that yoga shows benefits in the following disease: cardiovascular disease, knee osteoarthritis, metabolic syndrome, asthma, breast cancer, chronic heart failure, chronic low back pain, chronic neck pain, chronic obstructive pulmonary disease, stroke, dementia, type 2 diabetes mellitus, Headaches, irritable bowel syndrome, menopausal symptoms, and schizophrenia.
References
- Manjunath NK, Telles S. Improved performance in the Tower of London test following yoga. Indian Journal of Physiology and Pharmacology. 2001; 45: 351-354.
- Rani NJ, Rao P. Meditation and attention regulation. Journal of Indian Psychology. 1996.
- Sridevi K, Sitamma M, Krishna Rao P. Yoga training and cognitive task performance. Journal of Indian Psychology. 1998; 16: 34-39.
- Sharma V, Das S, Mondal S, Goswami U, Gandhi A. Effect of Sahaj Yoga on neuro-cognitive functions in patients suffering from major depression. Indian Journal of Physiology and Pharmacology. 2006; 50: 375-383.
- Verma IC, Jayashankarappa B, Palani M. Effect of transcendental meditation on the performance of some cognitive psychological tests. The Indian Journal of Medical Research. 1982; 76: 136-143.
- Haider T, Sharma M, Branscum P. Yoga as an Alternative and Complimentary Therapy for Cardiovascular Disease: A Systematic Review. Journal of Evidence-Based Complementary & Alternative Medicine. 2016.
- Chu P, Gotink RA, Yeh GY, Goldie SJ, Hunink MG. The effectiveness of yoga in modifying risk factors for cardiovascular disease and metabolic syndrome: A systematic review and meta-analysis of randomized controlled trials. European Journal of Preventive Cardiology. 2016; 23: 291-307.
- Barrows JL, Fleury J. Systematic Review of Yoga Interventions to Promote Cardiovascular Health in Older Adults. Western Journal of Nursing Research. 2016; 38: 753-781.
- Kan L, Zhang J, Yang Y, Wang P. The Effects of Yoga on Pain, Mobility, and Quality of Life in Patients with Knee Osteoarthritis: A Systematic Review. Evidence-Based Complementary and Alternative Medicine. 2016: 6016532.
- Cramer H, Langhorst J, Dobos G, Lauche R. Yoga for metabolic syndrome: A systematic review and meta-analysis. European Journal of Preventive Cardiology. 2016.
- Yang ZY, Zhong HB, Mao C, Yuan JQ, Huang YF, Wu XY, et al. Yoga for asthma. Sao Paulo Med J. 2016; 134: 368.
- Cramer H, Lange S, Klose P, Paul A, Dobos G. Yoga for breast cancer patients and survivors: a systematic review and meta-analysis. BMC Cancer. 2012; 12: 412.
- Cramer H, Lauche R, Klose P, Lange S, Langhorst J, Dobos GJ. Yoga for improving health-related quality of life, mental health and cancer-related symptoms in women diagnosed with breast cancer. The Cochrane Database of Systematic Reviews. 2017; 1: Cd010802.
- Galliford M, Robinson S, Bridge P, Carmichael M. Salute to the sun: a new dawn in yoga therapy for breast cancer. Journal of Medical Radiation Sciences. 2017.
- Harder H, Parlour L, Jenkins V. Randomised controlled trials of yoga interventions for women with breast cancer: a systematic literature review. Supportive care in cancer: official journal of the Multinational Association of Supportive Care in Cancer. 2012; 20: 3055-3064.
- Pan Y, Yang K, Wang Y, Zhang L, Liang H. Could yoga practice improve treatment-related side effects and quality of life for women with breast cancer? A systematic review and meta-analysis. Asia-Pacific Journal of Clinical Oncology. 2015.
- Sharma M, Lingam VC, Nahar VK. A systematic review of yoga interventions as integrative treatment in breast cancer. Journal of Cancer Research and Clinical Oncology. 2016; 142: 2523-2540.
- Zhang J, Yang KH, Tian JH, Wang CM. Effects of yoga on psychologic function and quality of life in women with breast cancer: a meta-analysis of randomized controlled trials. Journal of alternative and complementary medicine (New York, NY). 2012; 18: 994-1002.
- Gomes-Neto M, Rodrigues-Jr ES, Silva-Jr WM, Carvalho VO. Effects of Yoga in Patients with Chronic Heart Failure: A Meta-Analysis. Arquivos Brasileiros de Cardiologia. 2014; 103: 433-439.
- Chang DG, Holt JA, Sklar M, Groessl EJ. Yoga as a treatment for chronic low back pain: A systematic review of the literature. Journal of Orthopedics & Rheumatology. 2016; 3: 1-8.
- Hill C. Is yoga an effective treatment in the management of patients with chronic low back pain compared with other care modalities - a systematic review. Journal of complementary & integrative medicine. 2013; 10.
- Holtzman S, Beggs RT. Yoga for chronic low back pain: a meta-analysis of randomized controlled trials. Pain Research & Management. 2013; 18: 267-272.
- Maher AR, Colaiaco B, Apaydin E, Sorbero ME, Booth M, Shanman RM, et al. Effects of yoga on chronic neck pain: a systematic review of randomized controlled trials. Psychological Trauma: Theory, Research, Practice and Policy. 2016; 28: 2171-2174.
- Liu XC, Pan L, Hu Q, Dong WP, Yan JH, Dong L. Effects of yoga training in patients with chronic obstructive pulmonary disease: a systematic review and meta-analysis. Journal of Thoracic Disease. 2014; 6: 795-802.
- Thayabaranathan T, Andrew NE, Immink MA, Hillier S, Stevens P, Stolwyk R, et al. Determining the potential benefits of yoga in chronic stroke care: a systematic review and meta-analysis. Topics in Stroke Rehabilitation. 2017: 1-10.
- Du Q, Wei Z. The therapeutic effects of yoga in people with dementia: a systematic review. International Journal of Geriatric Psychiatry. 2017; 32: 118.
- Cramer H, Lauche R, Langhorst J, Dobos G. Yoga for depression: a systematic review and meta-analysis. Depression and Anxiety. 2013; 30: 1068-1083.
- Gong H, Ni C, Shen X, Wu T, Jiang C. Yoga for prenatal depression: a systematic review and meta-analysis. BMC Psychiatry. 2015; 15: 14.
- Wang YY, Chang HY, Lin CY. [Systematic review of yoga for depression and quality of sleep in the elderly]. The Journal of Nursing. 2014; 61: 85-92.
- Cui J, Yan JH, Yan LM, Pan L, Le JJ, Guo YZ. Effects of yoga in adults with type 2 diabetes mellitus: A meta-analysis. Journal of diabetes investigation. 2016.
- Innes KE, Selfe TK. Yoga for Adults with Type 2 Diabetes: A Systematic Review of Controlled Trials. Journal of Diabetes Research. 2016; 2016: 6979370.
- Kumar V, Jagannathan A, Philip M, Thulasi A, Angadi P, Raghuram N. Role of yoga for patients with type II diabetes mellitus: A systematic review and meta-analysis. Complementary Therapies in Medicine. 2016; 25: 104-112.
- Pai LW, Li TC, Hwu YJ, Chang SC, Chen LL, Chang PY. The effectiveness of regular leisure-time physical activities on long-term glycemic control in people with type 2 diabetes: A systematic review and meta-analysis. Diabetes Research and Clinical Practice. 2016; 113: 77-85.
- Vizcaino M, Stover E. The effect of yoga practice on glycemic control and other health parameters in Type 2 diabetes mellitus patients: A systematic review and meta-analysis. Complementary Therapies in Medicine. 2016; 28: 57-66.
- Kim SD. Effects of yoga exercises for headaches: a systematic review of randomized controlled trials. Journal of Physical Therapy Science. 2015; 27: 2377-2380.
- Cramer H, Haller H, Lauche R, Steckhan N, Michalsen A, Dobos G. A systematic review and meta-analysis of yoga for hypertension. American Journal of Hypertension. 2014; 27: 1146-1151.
- Hagins M, States R, Selfe T, Innes K. Effectiveness of yoga for hypertension: systematic review and meta-analysis. Evidence-Based Complementary and Alternative Medicine: eCAM. 2013; 2013: 649836.
- Posadzki P, Cramer H, Kuzdzal A, Lee MS, Ernst E. Yoga for hypertension: a systematic review of randomized clinical trials. Complementary Therapies in Medicine. 2014; 22: 511-522.
- Tyagi A, Cohen M. Yoga and hypertension: a systematic review. Alternative Therapies in Health and Medicine. 2014; 20: 32-59.
- Wang J, Xiong X, Liu W. Yoga for essential hypertension: a systematic review. PloS one. 2013; 8: e76357.
- Schumann D, Anheyer D, Lauche R, Dobos G, Langhorst J, Cramer H. Effect of Yoga in the Therapy of Irritable Bowel Syndrome: A Systematic Review. Clinical Gastroenterology and Hepatology: The Official Clinical Practice Journal of the American Gastroenterological Association. 2016; 14: 1720-1731.
- Cramer H, Lauche R, Langhorst J, Dobos G. Effectiveness of yoga for menopausal symptoms: a systematic review and meta-analysis of randomized controlled trials. Evidence-Based Complementary and Alternative Medicine: eCAM. 2012; 2012: 863905.
- Cramer H, Lauche R, Klose P, Langhorst J, Dobos G. Yoga for schizophrenia: a systematic review and meta-analysis. BMC Psychiatry. 2013; 13: 32.