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August 26, 2025Open Access

A Reverse J-Shaped Association Between Total Physical Activity and Cognitive Impairment in Older Chinese Adults: Evidence from a Nationally Representative Cross-sectional Study Using CHARLS Data

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Authors

YZYongheng ZhaoChinese Academy of Sciences GHGaixia Hou LLLimeng LiuUniversity of Minnesota

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Implication

Cross-sectional analysis shows a reverse J-shaped association between physical activity and cognitive impairment, suggesting mediation by depressive symptoms and life satisfaction.

Key Points

A reverse J-shaped association was found between total physical activity and cognitive impairment risk in older adults.
The lowest risk of cognitive impairment was observed at about 2,800 MET-minutes/week (OR = 0.772).
Data analysis utilized logistic regression and structural equation modeling to explore nonlinear associations and mediators.
Findings indicate that both low and high levels of physical activity can increase cognitive impairment risk, emphasizing the importance of optimal activity levels.

Cite This Study

Zhao et al. (2025) studied this question.

synapsesocial.com/papers/68af6210ad7bf08b1eae32b6 https://doi.org/10.21203/rs.3.rs-7282499/v1

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Implication

Cross-sectional analysis shows a reverse J-shaped association between physical activity and cognitive impairment, suggesting mediation by depressive symptoms and life satisfaction.

A Reverse J-Shaped Association Between Total Physical Activity and Cognitive Impairment in Older Chinese Adults: Evidence from a Nationally Representative Cross-sectional Study Using CHARLS Data

Discussion

Member takes

Implication

Key Points

Cite This Study

A Reverse J-Shaped Association Between Total Physical Activity and Cognitive Impairment in Older Chinese Adults: Evidence from a Nationally Representative Cross-sectional Study Using CHARLS Data

Discussion

Member takes

Implication

Key Points

Cite This Study

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