Tai Chi cart enhance cognitive function in older adults, particularly in the realm of executive functioning and in individuals without significant impairment, concludes a systematic review from the USA. Twenty eligible studies with a total of 2553 participants met the authors’ inclusion criteria. The overall quality of RCTs was modest, with three of 11 trials categorised as being at a high risk of bias. Meta-analyses of outcomes related to executive function in RCTs of cognitively healthy adults indicated a large effect size when tai chi participants were compared with non-intervention controls, and a moderate effect size when compared with exercise controls. Meta-analyses of outcomes related to cognitive function in RCTs of cognitively impaired adults showed smaller – but statistically significant – effects when tai chi was compared with non-intervention controls and other active interventions. Findings from non-randomised studies added further evidence that tai chi may positively affect cognitive function. (Effect of Tai Chi on Cognitive Performance in Older Adults: Systematic Review and Meta-Analysis. J Am Geriatr Soc. 2014 Jan 2. doi: 10.1111 / jgs.12611. [Epub ahead of print]).

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