How physical activity and gender moderate the association between parental marital conflict and adolescent depression

Adolescent depression is a public development crisis that needs to be paid attention to and addressed under the rapid development of the Internet. It is of great significance to investigate the associations among adolescent depression, family relationship and physical activity (PA) for promoting adolescent mental health. A total of 3990 valid questionnaires were obtained through self-reports from adolescents. Data were collected using measurement tools for adolescent depression, parental marital conflict (PMC), and PA, followed by statistical analysis. Adolescent depression and PMC was significantly positive correlation (β = 0.315, p < 0.001) and PA is significantly negatively correlated (β = - 0.093, p < 0.001). After introducing moderating variables, PMC is still a significant positive correlation and adolescent depression (β = 0.303, p < 0.001). The study provides preliminary support for the association between PMC and adolescent depression, as well as the potential moderating roles of gender and PA in this association. These findings generate hypotheses for future research on the roles of PA and family relationships in adolescent depression, rather than providing direct evidence for prevention or intervention strategies.