ArticleFrontiers in psychology2026
Effects of exercise adherence on subjective wellbeing in middle-aged and older adults: a three-wave longitudinal chain mediation study.
Article in Frontiers in psychology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: This study examined whether exercise identity and positive emotional expressivity statistically explain the prospective association between exercise adherence and subjective wellbeing among middle-aged and older adults. Drawing on identity theory, self-determination perspectives, and the broaden-and-build theory of positive emotions, we tested a three-wave longitudinal chain mediation model while controlling for baseline subjective wellbeing and demographic covariates. Methods: Community-dwelling adults aged 45-75 years were recruited from community centers, senior universities, and public health platforms in Zhejiang Province, China. At baseline, 550 eligible participants completed measures of exercise adherence, subjective wellbeing, and covariates. Exercise identity was assessed 6 months later, and positive emotional expressivity and subjective wellbeing were assessed at 12 months. The final completer sample included 411 participants (mean age = 58.72 years, SD = 6.81; age range = 45-75 years; 180 men [43.8%] and 231 women [56.2%]). Attrition analyses, confirmatory factor analysis, longitudinal measurement invariance of subjective wellbeing, and structural equation modeling with 5,000 bootstrap samples were conducted. Results: Attrition analyses indicated no significant baseline differences between retained and attrited participants. The measurement model showed acceptable reliability, convergent validity, and discriminant validity. The structural model fit the data well ( Conclusion: Findings suggest that sustained exercise adherence may be linked to later subjective wellbeing partly through the consolidation of exercise identity and the expression of positive emotions. Because the final mediator and outcome were assessed at the same wave and the design was observational, causal claims should be interpreted cautiously. Community exercise programs for aging populations may benefit from strategies that support exercise-related self-concept and positive affective expression in addition to promoting physical activity itself.
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