[show abstract][hide abstract] ABSTRACT: Physical activity and exercise appear to improve psychological health. However, the quantitative effects of Tai Chi on psychological well-being have rarely been examined. We systematically reviewed the effects of Tai Chi on stress, anxiety, depression and mood disturbance in eastern and western populations.
Eight English and 3 Chinese databases were searched through March 2009. Randomized controlled trials, non-randomized controlled studies and observational studies reporting at least 1 psychological health outcome were examined. Data were extracted and verified by 2 reviewers. The randomized trials in each subcategory of health outcomes were meta-analyzed using a random-effects model. The quality of each study was assessed.
Forty studies totaling 3817 subjects were identified. Approximately 29 psychological measurements were assessed. Twenty-one of 33 randomized and nonrandomized trials reported that 1 hour to 1 year of regular Tai Chi significantly increased psychological well-being including reduction of stress (effect size [ES], 0.66; 95% confidence interval [CI], 0.23 to 1.09), anxiety (ES, 0.66; 95% CI, 0.29 to 1.03), and depression (ES, 0.56; 95% CI, 0.31 to 0.80), and enhanced mood (ES, 0.45; 95% CI, 0.20 to 0.69) in community-dwelling healthy participants and in patients with chronic conditions. Seven observational studies with relatively large sample sizes reinforced the beneficial association between Tai Chi practice and psychological health.
Tai Chi appears to be associated with improvements in psychological well-being including reduced stress, anxiety, depression and mood disturbance, and increased self-esteem. Definitive conclusions were limited due to variation in designs, comparisons, heterogeneous outcomes and inadequate controls. High-quality, well-controlled, longer randomized trials are needed to better inform clinical decisions.
BMC Complementary and Alternative Medicine 01/2010; 10:23. · 2.08 Impact Factor
[show abstract][hide abstract] ABSTRACT: Objective: To systematically review the efficacy of exercise interventions on pain relief in patients with fibromyalgia (FM).
Methods: We performed a comprehensive search of 8 western databases and reference lists through March 2009. We included randomized controlled trials (RCTs) with pain as an endpoint, measured by the Fibromyalgia Impact Questionnaire (FIQ) or a visual analogue scale (VAS). The exercise treatments were compared with a no-exercise control group. Study quality was assessed by the Jadad scale. We calculated effect sizes to assess the magnitude of treatment effect, and meta-analyzed for overall effect.
Results: Forty-five studies were critically appraised for effects on pain. Ten RCTs published between 1992 and 2008, conducted in Europe and North America met eligibility criteria with 767 participants (98% women). Mean age was 47 years and mean symptom duration was 10 years. The meta-analysis results showed that 6 to 24 weeks of aerobic, strength training, pool and multi-component exercise had a statistically significant decrease in pain outcomes versus education, usual care and non-exercise controls. The pooled effect size was 0.45 (95% Confidence Interval, 0.09 to 0.80).
Conclusion: Physical exercise may have positive effects on pain reduction in patients with FM. Long-term, rigorous and well-controlled randomized trials are warranted.
Current Rheumatology Reviews 11/2009; 5(4):188-93.