Declines in Physical Performance by Sex and Age Among Nondisabled Community-Dwelling Older Japanese During a 6-Year Period
Declines in Physical Performance by Sex and Age Among Nondisabled Community-Dwelling Older Japanese During a 6-Year Period
复制标题
DOI：
10.2188/jea.je20100138
复制
发表时间：
2011-05-01
影响因子：
4.7
通讯作者：
Suzuki, Takao
中科院分区：
文献类型：
--
作者：
Ishizaki, Tatsuro;Furuna, Taketo;Suzuki, Takao
背景：很少有研究探讨非西方社区居住的老年人的握力（HGS）和快走速度（FWS）随时间的下降是否因性别和年龄而异。本研究旨在量化 1994 年至 2000 年 6 年间 HGS 和 FWS 的变化，并检验日本社区老年人中这些变化是否因性别和基线年龄而异。 方法：我们进行了一项基于社区的前瞻性队列研究。 1994 年的调查参与者为 513 名年龄在 67 岁至 91 岁之间的非残疾男性和女性。 1994 年、1996 年、1998 年和 2000 年获得了关于自基线以来时间的自变量以及各种时间相关和时间无关协变量。结果变量是每次调查中评估的 HGS 和 FWS。使用线性混合效应模型同时分析每次调查中收集的自变量和因变量的所有数据。结果：线性混合效应模型显示，在 6 年期间的任何调查中拥有可分析数据的非残疾老年参与者中，HGS（-0.70 kg/年，P < 0.001）和 FWS（-0.027 m/秒/年，P < 0.001）均显着下降。性别与 HGS 下降率显着相关（P < 0.001），但与 FWS 下降率无关（P = 0.211）。结论：在对日本无残疾老年人的分析中，混合效应模型证实了衰老对 HGS 和 FWS 下降的显着影响，并显示在 6 年期间，男性 HGS 下降幅度明显大于女性。
Background: Few studies have examined whether declines over time in hand-grip strength (HGS) and fast walking speed (FWS) differ by sex and age among non-Western community-dwelling older adults. This study aimed to quantify changes in HGS and FWS over the 6-year period from 1994 to 2000 and examine whether these changes differed by sex and baseline age among older individuals in a Japanese community.Methods: We conducted a community-based prospective cohort study. The participants were 513 nondisabled men and women aged 67 to 91 years at the 1994 survey. Independent variables regarding time since baseline, in addition to various time-dependent and time-independent covariates, were obtained in 1994, 1996, 1998, and 2000. The outcome variables were HGS and FWS assessed at each survey. All data on independent and dependent variables that were collected at each survey were simultaneously analyzed using a linear mixed-effects model.Results: The linear mixed-effects model revealed significant declines in both HGS (-0.70 kg/year, P < 0.001) and FWS (-0.027 m/sec/year, P < 0.001) among nondisabled older participants who had analyzable data in any survey during the 6-year period. Sex was significantly associated with the rate of decline in HGS (P < 0.001), but not FWS (P = 0.211).Conclusions: In this analysis of nondisabled older Japanese, a mixed-effects model confirmed a significant effect of aging on declines in HGS and FWS and showed that men had a significantly steeper decline in HGS than did women during a 6-year period.