Associations of low-intensity light physical activity with physical performance in community-dwelling elderly Japanese: A cross-sectional study.
Associations of low-intensity light physical activity with physical performance in community-dwelling elderly Japanese: A cross-sectional study.
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DOI：
10.1371/journal.pone.0178654
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Oka K
中科院分区：
文献类型：
--
作者：
Izawa KP;Shibata A;Ishii K;Miyawaki R;Oka K
身体活动和身体表现与老年人的生活质量、死亡率和发病率有关。然而，人们对低强度轻体力活动（LLPA）、高强度轻体力活动（HLPA）和中等强度体力活动（MPA）相关的身体表现差异以及它们在老年人群中的性别差异知之甚少。本研究旨在确定社区老年男性和女性的LLPA、HLPA、MPA和身体表现的差异，以及这些指标之间的关联。2013年，对181名社区老年男性（平均年龄，75.1 ± 5.3岁）和109名女性（平均年龄，73.4 ± 4.8岁）进行了身体活动和身体性能（如定时起身行走试验、单腿站立时间和最大步态速度）测量。体力活动分为LLPA（1.6~1.9 METs体力活动）、HLPA（2.0~2.9 METs体力活动）和MPA（超过3 METs体力活动）。通过皮尔逊相关系数评估参与者这三种体力活动强度值之间的关联。多元线性回归分析被用来评估身体表现值与三组定义的加速度计测量的身体活动强度调整的社会，行为和多种疾病的参与者。MPA对男性（P<0.05）和女性（P<0.05）的各项体能指标均有利。只有HLPA与女性的计时起身行走试验（P = 0.001）和最大步态速度（P = 0.006）有显著相关性。这些结果可能支持的概念，不仅HLPA的妇女，但MPA在两种性别似乎改善老年人的身体表现。目前的研究结果为HLPA在女性中的潜在益处提供了新的流行病学证据，也加强了MPA在两性中的潜在益处，这是公共卫生建议的支柱。
Physical activity and physical performance relate to quality of life, mortality, and morbidity in elderly people. However, little is known about differences in physical performance related to low-intensity light physical activity (LLPA), high-intensity light physical activity (HLPA), and moderate-intensity physical activity (MPA) and how they are separated by sex in elderly populations. This study aimed to determine differences in LLPA, HLPA, MPA, and physical performance, and associations between these measures in community-dwelling elderly men and women. Physical activity and physical performance such as timed-up-and-go test, one-leg standing time, and maximum gait speed were measured in 181 community-dwelling elderly men (mean age, 75.1 ± 5.3 years) and 109 women (mean age, 73.4 ± 4.8 years) in 2013. Physical activity was classified as LLPA (1.6~1.9 METs of physical activity), HLPA (2.0~2.9 METs of physical activity), and MPA (over 3 METs of physical activity). The association between the values of these three intensities of physical activity in the participants was assessed by Pearson’s correlation coefficients. Multiple linear regression analyses were used to assess the association of physical performance values with the three groups defined by accelerometer-measured physical activity intensity adjusted for sociographic, behavioral, and multiple diseases in the participants. MPA was beneficially associated with all physical performance indicators in the men (all P<0.05) and women (all P<0.05). Only HLPA showed significant associations with the timed-up-and-go test (P = 0.001) and maximum gait speed (P = 0.006) in women. These results may support the notion that not only HLPA in women but MPA in both sexes appears to improve physical performance in elderly populations. The present study findings provide novel epidemiological evidence for the potential benefits of HLPA in women and also reinforce the potential benefits of MPA in both sexes, which is the mainstay of public health recommendations.