Association between objectively measured sleep duration and physical function in community-dwelling older adults

Abstract

The aim of this research was to investigate the relationships between objectively measured sleep duration and physical function in older adults. Methods: We recruited community-dwelling older adults aged ≥ 60 years old in Taipei City, Taiwan. Sleep duration was measured with accelerometers and recorded as the total hours of sleep per night for each participant. The following physical functions were assessed: 1) grip strength (measured by handgrip dynamometer), 2) balance (1-leg standing test), 3) lower body strength (5-timed chair stand), 4) basic mobility (timed up and go test), 5) gait speed (5-m walk test). The relationships between sleep duration and physical function outcomes were analyzed using generalized additive models, controlling for objectively measured sedentary behavior and moderate-to-vigorous physical activity, and other sociodemographic variables. Results: A total of 121 older adults (men = 28.9%; mean age = 70.0 ± 5.0 years) was included in this study. A positive association of sleep duration with grip strength was found after adjusting for covariates (P = .005). No significant associations were observed between sleep duration and the other physical function outcomes. Conclusions: For older adults, lengthening their sleep duration may be helpful to enhance the grip strength. This result has implications for improving their health by targeting better performance in specific physical functions. Further studies of sleep duration and physical function among older adults should investigate the underlying mechanisms.

Association between Sleep Duration and Grip Strength in U.S. Older Adults: An NHANES Analysis (2011–2014)

“…Another study of patients with type 2 diabetes found that long sleep duration was significantly associated with low grip strength [ 16 ]. In contrast, a previous study conducted in Taiwan indicated that sleep duration was positively associated with grip strength in the fully adjusted model [ 17 ]. Furthermore, Goldman SE noted no statistically significant association between total nightly sleep duration and grip strength in older females [ 18 ].…”

“…Coincidentally, another cross-sectional study of 2862 men found an inverted U-shaped relationship between total nightly sleep duration and grip strength, and this relationship persisted after adjusting for daytime sleep [ 14 ]. However, a previous study conducted in Taiwan indicated that sleep duration was positively associated with grip strength in the fully adjusted model [ 17 ]. It is noteworthy that the small sample size can influence the results.…”

Association of Sleep Duration with Physical Performance in Hemodialysis Patients: A Multicenter Cross-Sectional Study

“…Higher TUGT indicates poor lower limb balance and mobility, which may be strongly correlated with lower IPAQ. Fu et al found that community-dwelling older adults who slept over 9 h showed poorer balance function than those who slept for 7–8 h [13] while Huang et al [14] observed no significant associations between sleep duration and balance performance. Our study did not find the association with sleep duration and TUGT, which might be due to different population.…”

“…Abnormal sleep duration may increase the risk of cardiovascular disease and all-cause mortality [10][11][12]. However, evidence on the relation of sleep duration and physical function in previous studies is inconsistent [13][14][15]. Moreover, there is limited research on the relationship of sleep duration and physical performance in HD population.…”

Factors Influencing Grip Strength of Depressed Patients: Using Data from the National Health and Nutrition Examination Survey (2018~2019)

“…선행연구에 따르면, 악력의 영향요인으로 성별 [8,9], 나이 [8,9], 사회경제적 요인 [8,10], 결혼 여부 [11], 암 및 만성질환 여 부 [4,8,9], 좌식시간 [10], 체질량 [8,9], 수면 [12], 우울 증상 [5,13] 등이 확인되고 있다. 악력은 남성보다 여성이, 점점 더 고령화 될수록 감소하며 [8,9], 경제 및 교육 수준 등 사회경제적인 요 인과 밀접한 관련이 있는 것으로 나타난다 [8,10].…”