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Article Abstract
Objective: This umbrella review aims to consolidate the evidence concerning the influence of exercise on depressive symptoms and cognitive performance in adults diagnosed with depression.
Methods: An umbrella review of systematic reviews with meta-analyses investigating the effect of exercise on depression and cognition was performed. Databases (PubMed, Cochrane Library, Web of Science, Embase) were searched from inception until February 2024 for reviews of randomized controlled trials. Overlap within included reviews was assessed using the corrected covered area method (CCA). A random effects model was used to calculate overall pooled effect size with sub-analyses.
Results: This study included 27 reviews, encompassing 190 experiments. In patients with depression, compared to the control group, exercise demonstrated a moderate effect size in reducing depressive symptoms (SMD = -0.67; SE = 0.04; p < 0.0001), with a Number Needed to Treat (NNT) of 2.78. When analyses were limited to data from studies with a low risk of bias, the effect on depressive symptoms was smaller (SMD = -0.38; SE = 0.07; p < 0.0001; NNT = 4.72). Exercise had a small effect on cognitive functions (SMD = 0.12; SE = 0.03; p < 0.0001), with an NNT for cognitive function treatment of 14.79.
Conclusions: All forms of exercise benefit patients with depression. However, for optimal intervention outcomes, it is essential to customize the intensity and type of exercise according to the specific characteristics of the patient's depressive symptoms and cognitive functions. It is recommended to implement a phased treatment approach for patients based on the intensity of exercise.
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| http://dx.doi.org/10.1016/j.jad.2024.09.074 | DOI Listing |
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