Age-associated gait patterns and the role of lower extremity strength - results from the Baltimore Longitudinal Study of Aging.
Age-associated gait patterns and the role of lower extremity strength - results from the Baltimore Longitudinal Study of Aging.
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DOI：
10.1016/j.archger.2012.04.004
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发表时间：
2012-09
影响因子：
4
通讯作者：
Ferrucci L
中科院分区：
文献类型：
--
作者：
Ko SU;Stenholm S;Metter EJ;Ferrucci L
这项研究的目的是检验成年人一生中步态特征的差异，并检验这样的差异至少部分可归因于肌肉力量下降的假设。这里提供的数据来自巴尔的摩老龄化纵向研究(BLSA)的190名参与者，年龄从32岁到93岁不等。根据最能反映年龄对步行速度影响的两个年龄阈值，参与者被分为三个年龄组：中年(32-57岁；N=27)、老年(58-78岁；N=125)和高龄(79-93岁；N=38)。参与者被要求以他们喜欢的最大速度行走，同时用3D步态分析系统记录下来。此外，还评估了最大等速伸膝力量。以最佳速度行走时，中年组踝关节活动度较低(p<；0.001，p=0.047)，高龄组髋关节活动度较低(p=0.006)，机械功消耗较高(p<；0.001)。脚踝功能的恶化在中年就已经开始了。中年和老年之间的最大步行速度和踝关节活动度的差异可以用膝盖力量来解释。
The aim of the present study was to examine differences in gait characteristics across the adult lifespan and to test the hypothesis that such differences are attributable at least in part to the decline in muscle strength. The data presented here are from 190 participants of the Baltimore Longitudinal Study of Aging (BLSA) aged from 32 to 93 years. Based on two age thresholds that best capture the effect of age on walking speed, participants were divided into three age groups: middle-age (32–57 years; N=27), old-age (58–78 years; N=125), and oldest-age (79–93 years; N=38). Participants were asked to walk at their preferred and maximum speeds while recorded with 3D gait analysis system. In addition, maximum isokinetic knee extensor strength was assessed. While walking at preferred speed, range of motion (ROM) and mechanical work expenditure (MWE) of the ankle were lower within middle-age (p < 0.001, p = 0.047, respectively), while hip ROM and MWE were lower (p = 0.006) and higher (p < 0.001), respectively within oldest-age with older age. Deterioration in ankle function during customary walking initiates already at middle-age. Differences in the maximum walking speed and ankle ROM between middle-age and old-age were explained by knee strength.
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影响因子：
4.6
作者：
Dean, J. C.;Alexander, N. B.;Kuo, A. D.
通讯作者：
Kuo, A. D.
影响因子：
2.4
作者：
Schrager, Matthew A.;Kelly, Valerie E.;Shumway-Cook, Anne
通讯作者：
Shumway-Cook, Anne
影响因子：
2.4
作者：
Lewis, Cara L.;Ferris, Daniel P.
通讯作者：
Ferris, Daniel P.
影响因子：
6.7
作者：
Ko, Seung-uk;Hausdorff, Jeffrey M.;Ferrucci, Luigi
通讯作者：
Ferrucci, Luigi
影响因子：
2.4
作者：
Ko, Seung Uk;Ling, Shari M.;Ferrucci, Luigi
通讯作者：
Ferrucci, Luigi