Effects of chronic exercise on different central features of depression in adults with depression: A systematic review and meta-analysis of random controlled trials
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Abstract
Background
Exercise is considered an effective treatment for improving central symptoms of depression. However, the antidepressant effects of exercise on specific central features in adults with depression and the optimal exercise prescription remain unclear. The present review aimed to explore the impact of exercise on emotion regulation (ER) and executive function (EF) among adults living with depression as well as the moderating effects of exercise prescription characteristics.
Methods
Two Chinese databases and two English databases were systematically searched from January 1, 2000 to October 30, 2023 to identify relevant randomized controlled trials (RCTs). Based on the results of heterogeneity analyses, the random effects model was used for the meta-analysis of rumination (260 participants in 5 studies), inhibition (578 participants in 7 studies) and updating (832 participants in 9 studies), whereas the fixed effects model was used for the meta-analysis for shifting (802 participants in 8 studies).
Results
Exercise improved rumination (standardized mean difference [SMD] = −0.59, p = 0.02); however, these benefits were observed only for moderate-intensity aerobic exercise in one or two 31–60 min sessions per week for 5–8 weeks. The results indicated significant post-exercise improvement in shifting (SMD = −0.22, p = 0.002) but not inhibition (SMD = −0.21, p = 0.18) or updating (SMD = 0.15, p = 0.14). Moreover, substantial improvements in shifting were observed only from high-intensity aerobic exercise in three or four 31–60 min sessions per week for more than 8 weeks.
Conclusions
Exercise improved ER (i.e., rumination) and EF (i.e., shifting) in adults with depression. It is important to consider symptoms when prescribing exercise to adults with depression. However, given the limited number of included RCTs, these findings are preliminary and tentative.
期刊介绍：
Psychology of Sport and Exercise is an international forum for scholarly reports in the psychology of sport and exercise, broadly defined. The journal is open to the use of diverse methodological approaches. Manuscripts that will be considered for publication will present results from high quality empirical research, systematic reviews, meta-analyses, commentaries concerning already published PSE papers or topics of general interest for PSE readers, protocol papers for trials, and reports of professional practice (which will need to demonstrate academic rigour and go beyond mere description). The CONSORT guidelines consort-statement need to be followed for protocol papers for trials; authors should present a flow diagramme and attach with their cover letter the CONSORT checklist. For meta-analysis, the PRISMA prisma-statement guidelines should be followed; authors should present a flow diagramme and attach with their cover letter the PRISMA checklist. For systematic reviews it is recommended that the PRISMA guidelines are followed, although it is not compulsory. Authors interested in submitting replications of published studies need to contact the Editors-in-Chief before they start their replication. We are not interested in manuscripts that aim to test the psychometric properties of an existing scale from English to another language, unless new validation methods are used which address previously unanswered research questions.
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