Impact of exercise training on cognitive function in patients with COPD: a systematic review and meta-analysis of randomised controlled trials
Abstract
Objective The aim of this study was to describe the characteristics of exercise therapies in randomised controlled trials (RCTs) targeted at improving cognitive function and to assess their efficacy in COPD. Methods We conducted a comprehensive search of eight databases, namely PubMed, Web of Science, Embase, Cochrane Library, Chinese Biomedical Literature Database, China National Knowledge Infrastructure, Wanfang and Weipu, covering the period from database construction to 23 April 2024. Our search specifically targeted RCTs studying the effects of exercise on cognitive functioning in COPD patients. Trials consisted of one or more exercise training interventions along with at least one cognitive outcome study. Two reviewers independently reviewed papers, extracted data and evaluated the research literature's quality using the Cochrane risk-of-bias assessment tool RoB 2.0 and the modified Jadad scale. Meta-analysis of Montreal Cognitive Assessment (MoCA) scores in the groups with and without exercise intervention was performed and subgroup analyses were undertaken to identify potential causes of heterogeneity. Results We included a total of nine studies that included 578 COPD patients (69% male). Each study demonstrated that patients improved significantly in at least one cognitive component following training. All current research focuses on attention, executive function, motor ability, mental capacity, verbal fluency, visuoconstructive abilities and memory. The results…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 578 participants or records.
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