用不同强度的身体活动替代久坐行为：对长期居住在养老院的 80 岁以上老年人的身体功能、肌肉功能和残疾的影响。
Replacing Sedentary Behavior With Physical Activity of Different Intensities: Implications for Physical Function, Muscle Function, and Disability in Octogenarians Living in Long-Term Care Facilities.
机构信息
Departamento de Educación Física y Deporte, Epidemiology of Physical Activity and Fitness Across Lifespan Research Group (EPAFit), Universidad de Sevilla, Sevilla,Spain.
Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Bizkaia,Spain.
出版信息
J Phys Act Health. 2022 May 1;19(5):329-338. doi: 10.1123/jpah.2021-0186. Epub 2022 Mar 29.
BACKGROUND
We investigated the associations of replacing sedentary behavior (SB) with physical activity of different intensities on the physical function of octogenarians living in long-term care facilities.
METHODS
This pooled study recruited 427 older adults aged 80 years and older (69.1% female; body mass index: 27.53). For 345 participants who provided valid data, we assessed device-measured time spent in SB, light-intensity physical activity (LIPA), and moderate to vigorous physical activity (MVPA). We assessed lower limb physical function, strength, mobility, and disability. We used compositional data analysis to investigate the associations of replacing SB with physical activity on the outcomes.
RESULTS
Reallocation of SB to LIPA and MVPA was associated with a higher number of 30-second Chair Stand cycles (LIPA: +0.21, MVPA: +1.81; P < .001), greater peak force (LIPA: +11.96 N, MVPA: +27.68 N; P < .001), peak power (LIPA: +35.82 W, MVPA: +92.73 W; P < .001), peak velocity (LIPA: +0.03 m/s, MVPA: +0.12 m/s; P < .001), higher levels of grip strength (LIPA: +0.68 kg, MVPA: +2.49 kg; P < .001), and less time in the Time Up and Go (LIPA: -7.63 s, MVPA: -12.43 s; P < .001).
CONCLUSIONS
Replacing SB with LIPA or MVPA is associated with physical function and disability of older adults living in long-term care facilities.
背景
我们研究了将久坐行为（SB）替换为不同强度的体力活动对居住在长期护理机构的 80 岁以上老年人身体功能的影响。
方法
这项汇总研究招募了 427 名 80 岁及以上的老年人（69.1%为女性；体重指数：27.53）。对于提供有效数据的 345 名参与者，我们评估了设备测量的久坐时间、低强度体力活动（LIPA）和中等到剧烈体力活动（MVPA）。我们评估了下肢身体功能、力量、移动能力和残疾情况。我们使用成分数据分析来研究用体力活动替换 SB 对结果的影响。
结果
将 SB 重新分配到 LIPA 和 MVPA 与 30 秒椅子站立循环次数的增加有关（LIPA：+0.21，MVPA：+1.81；P<.001），更大的峰值力（LIPA：+11.96 N，MVPA：+27.68 N；P<.001），峰值功率（LIPA：+35.82 W，MVPA：+92.73 W；P<.001），峰值速度（LIPA：+0.03 m/s，MVPA：+0.12 m/s；P<.001），握力水平提高（LIPA：+0.68 kg，MVPA：+2.49 kg；P<.001），以及 Time Up and Go 时间减少（LIPA：-7.63 s，MVPA：-12.43 s；P<.001）。
结论
用 LIPA 或 MVPA 替换 SB 与居住在长期护理机构的老年人的身体功能和残疾有关。
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