The Relationship Between Physical Activity, Social Support, and Life Satisfaction Among Female College Students: A Variable- and Person-Centered Analysis

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Abstract
Life satisfaction (LS) is an important indicator of subjective well-being among college students. However, relatively few studies have integrated variable-centered and person-centered approaches to examine the associations among physical activity (PA), social support (SS), and LS in female college students. This cross-sectional study surveyed 2097 female college students from 11 universities in Jiangxi Province, China. PA, SS, and LS were assessed using self-report questionnaires. A mediation model was used to examine whether SS statistically mediated the association between PA and LS after controlling for education level and place of origin. Latent profile analysis was then conducted using six LS items, and the BCH method was used to compare PA and SS across profiles. The results showed that PA was positively associated with SS and LS, and SS was positively associated with LS. The indirect association between PA and LS through SS was statistically significant, suggesting a partial statistical mediation pattern. Latent profile analysis identified three level-based LS profiles: low-, medium-, and high-LS profiles. PA and SS increased progressively across these profiles, with the highest levels in the high-LS profile and the lowest levels in the low-LS profile. These findings suggest that PA, SS, and LS are closely interrelated and that meaningful quantitative heterogeneity exists in LS among female college students. Given the cross-sectional design and convenience sampling, the findings should be interpreted as statistical associations rather than causal effects.

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