Strength training has antidepressant effects in people with depression or depressive symptoms but no other severe diseases: A systematic review with meta-analysis.

Psychiatry Res

Santo Amaro University, Post-graduate Program in Health Sciences, Sao Paulo, Brazil; Bipolar Disorder Program (PROMAN), Department of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil; Research Group on Physical Activity, Mental and Physical Health and Physical Activity and Mental Health Laboratory - LAFISAM, Brazil. Electronic address:

Published: April 2024

Depression and subthreshold depressive symptoms reduce quality of life and function and treatment does not work effectively in one-third of patients. Exercise can reduce depressive symptoms, but more information is required regarding strength training (ST). The objective of the present meta-analysis was to summarize and estimate the efficacy of ST in people with a diagnosis of depression or subthreshold depressive symptoms and no other severe disease. We also aimed to explore the variables that could influence the antidepressant effects. PubMed, Embase, Web of Science, PsyINFO, CINAHL, and SPORTDiscus were searched from inception to August 2022. The overall effect antidepressant of training was moderate (SMD = -0.51, 95 % CI -0.72 to -0.30, p < 0.001). The meta-regression demonstrated preliminary evidence that the variables: duration of the intervention in weeks, weekly frequency of the intervention, number of sets, and number of repetitions can influence the antidepressant effects. However, these variables had a small role in the variation of the effect.

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http://dx.doi.org/10.1016/j.psychres.2024.115805DOI Listing

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