The role of physical activity in the prospective association between body mass index and depressive symptoms in mothers from the 2015 Pelotas (Brazil) Birth Cohort

IF 3.7 2区医学 Q1 PSYCHIATRY

Journal of psychiatric research Pub Date : 2025-03-28 DOI:10.1016/j.jpsychires.2025.03.051

Luciana Tornquist , Debora Tornquist , Inácio Crochemore-Silva , Gregore Iven Mielke , Mariângela Freitas da Silveira , Pedro Curi Hallal , Marlos Rodrigues Domingues

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Abstract

Maternal obesity has been associated with postpartum depression and a protective role of physical activity is indicated. This study aims to examine the role of moderate and vigorous physical activity (MVPA) in the prospective association between body mass index (BMI) and depressive symptoms in a cohort of mothers. Depressive symptoms were assessed at 3 and 48 months postpartum using the Edinburgh Depression Scale. BMI was calculated from weight and height measurements at 24 months postpartum and self-reported pre-pregnancy weight. MVPA was measured by accelerometers at 12–16 weeks of pregnancy and 24 months postpartum. Accelerometry data were available for 1953 mothers in pregnancy and 2546 postpartum. BMI was not significantly associated with depressive symptoms. However, the relationship between pre-gestational BMI and depressive symptoms 3 months postpartum was moderated by MVPA (p = 0.04). Among mothers with low MVPA, the association between BMI and depressive symptoms was not significant. However, among those who performed ≥42 min of MPVA/day, the relationship became significant and inverse (β: −0.125; 95 %CI: −0.248; −0.001), with mothers with higher BMI and high MVPA having lower depressive symptom scores. In conclusion, MVPA performs a positive role in the association between BMI and depressive symptoms, reinforcing the importance of MVPA promotion among mothers.

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来源期刊

Journal of psychiatric research 医学-精神病学

CiteScore

7.30

自引率

2.10%

发文量

622

审稿时长

130 days

期刊介绍： Founded in 1961 to report on the latest work in psychiatry and cognate disciplines, the Journal of Psychiatric Research is dedicated to innovative and timely studies of four important areas of research: (1) clinical studies of all disciplines relating to psychiatric illness, as well as normal human behaviour, including biochemical, physiological, genetic, environmental, social, psychological and epidemiological factors; (2) basic studies pertaining to psychiatry in such fields as neuropsychopharmacology, neuroendocrinology, electrophysiology, genetics, experimental psychology and epidemiology; (3) the growing application of clinical laboratory techniques in psychiatry, including imagery and spectroscopy of the brain, molecular biology and computer sciences;