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Moderate-to-vigorous physical activity combined with optimal sleep duration (6-8 h/night) is associated with the lowest risk of falls in Chinese older adults

Among 10,232 Chinese adults aged 60+, moderate-to-vigorous physical activity (MVPA) was associated with 15.8% lower odds of falls (OR=0.842, 95% CI: 0.745-0.952) compared to low physical activity. The combination of MVPA and optimal sleep (6-8 h) was associated with the lowest fall risk (OR=0.524, 95% CI: 0.440-0.626) relative to the reference group.

Last updated: Jul 11, 2026•0 RCTs•📖 Read as article →

Evidence Score

Evidence Score34/100
Human RCT☆☆☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. Joint associations of physical activity and sleep duration with falls: evidence from the China health and retirement longitudinal study.

observational

Wen J, Yuan F · BMC public health (2026)

Participants: N/A
Duration: Cross-sectional (data from 2020 wave, falls since 2018)
Intervention: Moderate-to-vigorous physical activity (MVPA) assessed via IPAQ short form
Outcome: Self-reported falls since previous interview wave (2018) or at entry
Effect Size: OR=0.842 (95% CI: 0.745-0.952) for MVPA vs LPA; joint MVPA+optimal sleep OR=0.524 (95% CI: 0.440-0.626)
Population: 10,232 Chinese adults aged 60 years and older from the China Health and Retirement Longitudinal Study (CHARLS) 2020 wave

Result:

PubMed: 42426659DOI: 10.1186/s12889-026-28089-3

Mechanism Graph

Physical activity improves muscle strength and balance
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Optimal sleep duration supports cognitive and motor function
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Combined effects reduce fall risk factors
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Result: Lower odds of falls

Limitations

  • ⚠Cross-sectional design limits causal inference
  • ⚠Sleep duration and falls were self-reported, introducing potential recall bias
  • ⚠Physical activity was dichotomized, which may oversimplify dose-response relationships

Frequently Asked Questions

What is the optimal sleep duration for fall prevention in older adults?▼

The study found that 6-8 hours per night (optimal sleep) combined with moderate-to-vigorous physical activity was associated with the lowest risk of falls.

Does physical activity alone reduce fall risk?▼

Yes, moderate-to-vigorous physical activity (MVPA) was associated with 15.8% lower odds of falls compared to low physical activity (OR=0.842, 95% CI: 0.745-0.952).

How many participants were in this study?▼

The study analyzed 10,232 participants aged 60 years and older from the China Health and Retirement Longitudinal Study.

What were the limitations of this research?▼

The cross-sectional design prevents causal conclusions, and both sleep duration and falls were self-reported, which may introduce bias.

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References

  1. 1.Wen J, Yuan F. "Joint associations of physical activity and sleep duration with falls: evidence from the China health and retirement longitudinal study.." BMC public health, 2026. PMID: 42426659 DOI: 10.1186/s12889-026-28089-3
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.