Does aerobic exercise reduce postpartum depressive symptoms? a systematic review and meta-analysis
British Journal of General Practice, August 2017
Ruth Victoria Pritchett, Amanda J Daley, Kate Jolly
There is currently no specific guidance on the role of exercise in managing postpartum depression in the UK and US, and international guidance is inconsistent. To assess the effectiveness of aerobic exercise on postpartum depressive symptoms. Systematic review and meta-analysis. There was no restriction to study site or setting. The databases MEDLINE, EMBASE, Cochrane Library, PsycINFO, SportDiscus, Clinical Trials.gov, and the World Health Organization International Clinical Trials Registry Platform were searched. Titles and abstracts, then full-text articles, were screened against inclusion criteria: RCTs measuring depressive symptoms in mothers ≤1 year postpartum; and interventions designed to increase aerobic exercise compared with usual care or other comparators. Included studies were assessed using the Cochrane Collaboration's risk of bias tool. Meta-analysis was conducted. Pre-planned subgroup analyses explored heterogeneity. Thirteen RCTs were included, with 1734 eligible participants. Exercise significantly reduced depressive symptoms when all trials were combined (standardised mean difference -0.44; 95% confidence interval = -0.75 to -0.12). Exploration of heterogeneity did not find significant differences in effect size between women with possible depression and in general postpartum populations; exercise only and exercise with co-interventions; and group exercise and exercise counselling. This systematic review provides support for the effectiveness of exercise in reducing postpartum depressive symptoms. Group exercise, participant-chosen exercise, and exercise with co-interventions all may be effective interventions. These results should be interpreted with caution because of substantial heterogeneity and risk of bias.
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