| Summary: | This study examined whether depression mediates a relationship between academic helplessness and life satisfaction and whether the mediating effect differs depending on participation in leisure time physical activity (LTPA) from a sample of 2384 middle school students in South Korea. Identifying these factors could help in developing intervention strategies for promoting life satisfaction. Structural equation modeling analyses were employed to understand how various factors influence adolescents’ life satisfaction. First, the effect of academic helplessness on life satisfaction was mediated by depression. Second, the mediating effect of depression was moderated according to participation in LTPA: the size of the negative mediating effect of depression on the relationship between academic helplessness and life satisfaction was reduced in the LTPA group compared to the non-LTPA group. The current findings suggest that encouraging engagement in physical activity may be a crucial vehicle for affecting academic helplessness, depression, and life satisfaction among early adolescents. Implications and future directions are discussed.
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