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• W4294868387 abstract "Background Engagement in physically active lifestyles brings multidimensional health benefits including better cognitive function. While prior studies examined the link between physical activity and cognitive function, a remaining unanswered question is what modifiable factors channel such effects. Objective This study investigates the extent to which subject’s body mass index (BMI) and depression mediate the link between physical activity and cognitive function among older adults in China. Methods This study builds a parallel structural equation model utilizing the 2013–2018 China Health and Retirement Longitudinal Study (CHARLS) dataset. We screened a total of 14,724 subjects, among which 3,611 subjects met the inclusion criteria. Physical activity, depression, and cognitive function are measured using the International Physical Activity Questionnaire (IPAQ), Center for Epidemiological Research Depression Scale (CES-D), and Mini-Mental State Examination (MMSE) instruments. Results Parallel mediation analyses indicate that depression significantly mediates the link between physical activity and cognitive function (std. β = 0.023, p -value = 0.010), while no significant mediation was observed via BMI (std. β = 0.005, p -value = 0.155). Findings also show that physical activity is positively associated with cognitive function (std. β = 0.104, p -value = 0.004), whereas physical activity is inversely associated with BMI (std. β = –0.072, p -value = 0.045). Both BMI (std. β = –0.071, p -value = 0.042) and depression (std. β = –0.199, p -value = 0.001) are negatively associated with cognitive function. Conclusion This study quantifies the positive association between physical activity and cognitive function in older Chinese adults, and uncovers a significant mediation channel occurring through depression. From a clinical perspective, physical behavioral modifications can lead to linked improvements in both mental and cognitive wellbeing for older adults." @default.
• W4294868387 created "2022-09-07" @default.
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• W4294868387 date "2022-09-07" @default.
• W4294868387 modified "2023-10-14" @default.
• W4294868387 title "Quantifying the parallel mediation influence of body mass index and depression on physical activity and cognitive function among 3,611 Chinese older adults" @default.
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• W4294868387 doi "https://doi.org/10.3389/fnagi.2022.977321" @default.
• W4294868387 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36158538" @default.
• W4294868387 hasPublicationYear "2022" @default.
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