How Does Physical Activity Influence Postpartum Mental Health? The Role of a Chain Mediating and Moderating Mechanism
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To explore the influence mechanism of physical activities during pregnancy on postpartum depression. A cross-sectional questionnaire survey was conducted among 754 pregnant women. Data statistical analysis was conducted using SPSS29, and the mediation effect model was tested through the Bootstrap program of the extension program PROCESS. The level of physical activity during pregnancy can significantly negatively predict sleep disorder (B=-0.002, 95%CI=-0.0031, -0.0011), postpartum depression (B=-0.002, 95%CI=-0.017, -0.0004), and significantly positively predict psychological resilience (B=0.012). 95%CI=0.0097,0.015), sleep disorder significantly negatively predicted psychological resilience (B=-1.134, 95%CI=1.343,0.925), and significantly positively predicted postpartum depression (B=0.251, 95%CI=0.204, 0.298). Psychological resilience significantly negatively predicted postpartum depression (B=-0.162, 95%CI=-0.117, -0.147). Physical activities during pregnancy can affect postpartum depression through a chain mediating effect of sleep disorder and psychological resilience. Spousal support plays a negative moderating role in the process in which physical activities affect postpartum depression and postpartum depression affects psychological resilience, while spousal support plays a positive moderating role in the process in which sleep disorders affect postpartum depression. Conclusions: Physical activities during pregnancy have a positive predictive effect on the psychological resilience of pregnant women, and a negative regulatory effect on sleep disorders and postpartum depression. Physical activities not only exert an influence on postpartum depression, but also affect it through the chain mediating effect of sleep disorders and psychological resilience. Spousal support plays a moderating role in the process in which physical activities, psychological resilience and sleep disorders affect postpartum depression.
