Both Short and Long Sleep Durations are Risk Factors for Sarcopenia in Suburban-Dwelling Older Chinese Individuals: A 3-Year Longitudinal Study

Background: Few longitudinal studies have explored exploring the relationship between sleep duration and sarcopenia. Evidence concerning the relationship between sleep duration and sarcopenia is limited and inconsistent. The purpose of this 3-year prospective study was to explore whether sleep duration was associated with sarcopenia onset in suburb-dwelling older Chinese individuals. Methods: This was a prospective study that included 754 Chinese suburb-dwelling men and women aged ???60 years (men n=327, mean age 65.24?? 4.87 years) who were not initially diagnosed with sarcopenia. We defined sarcopenia using the diagnostic algorithm recommended by the Asian Working Group for Sarcopenia. Self-reported sleep duration was a component of the interview measured by trained interviewers. Subjects were categorized into 3 groups at baseline [short: 6 h, medium: 6???8 h, and long: 6 and 8 hours were 2.74 (95% CI 1.05???7.13) and 1.84 (95% CI 1.07???3.14). Conclusion: Both short and long sleep durations were associated with a greater incidence of sarcopenia. Thus, sleep duration should be considered when developing prevention and management strategies for sarcopenia.

Automated summary

This 3-year prospective study aimed to explore the association between sleep duration and sarcopenia onset in older Chinese individuals. The results showed that both short and long sleep durations were associated with a higher incidence of sarcopenia. Therefore, sleep duration should be taken into consideration when developing prevention and management strategies for sarcopenia.