Conventional and robust quantitative gait norms in community-dwelling older adults.
Conventional and robust quantitative gait norms in community-dwelling older adults.
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DOI：
10.1111/j.1532-5415.2010.02962.x
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发表时间：
2010-08
影响因子：
6.3
通讯作者：
Verghese J
中科院分区：
文献类型：
--
作者：
Oh-Park M;Holtzer R;Xue X;Verghese J
虽然步态被广泛用于评估老年人的健康状况，但缺乏规范性数据。我们的目的是制定和比较规范的广泛使用的步态参数在成人年龄70岁及以上的横断面（传统）和纵向（鲁棒）的方法占重要的混杂因素，如疾病对步态的影响。队列研究一般社区社区居住老年人（年龄>70，N=824）无痴呆或残疾八个定量步态参数测量使用仪器走道。在824例受试者（常规正常; CN样本）中，排除了基线评估后1年内发生的普遍或偶发临床步态异常的受试者，以解释疾病对步态表现的影响后，将304例纳入“稳健正常”（RN）样本。描述性地，RN样本在所有选定的步态变量上表现出比CN样本更好的性能。例如，RN样本的平均步态速度（±标准差）为105.9±17.9 cm/sec，而总体CN样本为93.3±23.2 cm/sec。应用低于CN样本平均值（70.1 cm/sec）的一个标准差来定义缓慢步态，总体队列中有15.9%（131）被归类为异常，而RN临界值（88.0 cm/sec）将总体队列中的39.7%（327）归类为异常。我们的研究结果表明，横截面的传统规范可能低估了老化的步态表现。纵向鲁棒规范提供了更准确的估计正常步态的表现，从而可能会提高早期检测老年人的步态障碍。
While gait is widely used to assess health status in older adults, normative data is lacking. Our objective was to develop and compare norms for widely used gait parameters in adults age 70 and older using cross-sectional (conventional) and longitudinal (robust) approaches accounting for important confounders such as disease effects on gait. Cohort study General community Community-dwelling older adults (age>70, N=824) without dementia or disability Eight quantitative gait parameters measured using an instrumented walkway. Of the 824 subjects (conventional normal; CN sample), 304 were included in a ‘robust normal’ (RN) sample after excluding those with either prevalent or incident clinical gait abnormalities developing within one year of the baseline assessment to account for disease effects on gait performance. Descriptively, the RN sample showed better performance on all selected gait variables compared to the CN sample. For instance, mean gait velocity (± standard deviation) was 105.9±17.9 cm/sec in the RN sample compared to 93.3±23.2 cm/sec in the overall CN sample. Applying a one standard deviation below the mean (70.1 cm/sec) derived from CN sample to define slow gait, 15.9% (131) in overall cohort were classified as abnormal whereas the RN cut-off (88.0 cm/sec) classified 39.7% (327) in the overall cohort as abnormal. Our findings suggest that cross-sectional conventional norms may under-estimate gait performance in aging. Longitudinal robust norms provide more accurate estimates of normal gait performance and thus may improve early detection of gait disorders in older adults.
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影响因子：
6.7
作者：
Verghese, J;Katz, MJ;Lipton, RB
通讯作者：
Lipton, RB
影响因子：
158.5
作者：
Verghese, J;Lipton, RB;Buschke, H
通讯作者：
Buschke, H
影响因子：
2.3
作者：
Brunnekreef, JJ;van Uden, CJT;Kooloos, JGM
通讯作者：
Kooloos, JGM
影响因子：
2.6
作者：
Holtzer, Roee;Goldin, Yelena;Lipton, Richard B.
通讯作者：
Lipton, Richard B.
影响因子：
6.7
作者：
Bohannon, RW
通讯作者：
Bohannon, RW