VanSwearingen J M, Paschal K A, Bonino P, Yang J F
Department of Physical Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, PA 15260, USA. jessievs+@pitt.edu
Phys Ther. 1996 Sep;76(9):994-1002. doi: 10.1093/ptj/76.9.994.
The purpose of this study was to determine the reliability and validity of measurements obtained with a seven-item modified version of the Gait Abnormality Rating Scale (GARS-M), an assessment of gait designed to predict risk of falling among community-dwelling, frail older persons.
Fifty-two community-dwelling, frail older persons, with a mean age of 74.8 years (SD = 6.75), participated.
A history of falls was determined from self-report or by proxy report. The GARS-M was scored from videotapes of subjects walking at self-selected paces. Gait characteristics were recorded during a timed walk on a 6-m brown-paper walkway.
Scores obtained by three raters for 23 subjects demonstrated moderate to substantial intrarater and interrater reliability. Concurrent validity, as assessed by Spearman rank-order correlation coefficients, was demonstrated for the relationship between GARS-M scores and stride length (r = -.754) and for the relationship between GARS-M scores and walking speed (r = -.679). Mean GARS-M scores distinguished between frail older persons with and without a history of recurrent falls (mean GARS-M scores of 9.0 and 3.8, respectively).
The GARS-M is a reliable and valid measure for documenting gait features associated with an increased risk of falling among community-dwelling, frail older persons and may provide a clinically useful alternative to established quantitative gait-assessment methods.
本研究旨在确定使用七项改良版步态异常评定量表（GARS-M）所获得测量结果的可靠性和有效性，该量表是一种用于评估步态的工具，旨在预测社区居住的体弱老年人跌倒风险。
五十二名社区居住的体弱老年人参与了研究，他们的平均年龄为74.8岁（标准差 = 6.75）。
通过自我报告或代理报告确定跌倒史。根据受试者以自选速度行走的录像对GARS-M进行评分。在一条6米长的棕色纸走道上进行定时行走时记录步态特征。
三位评分者对23名受试者的评分显示出中等至高度的评分者内和评分者间可靠性。通过斯皮尔曼等级相关系数评估的同时效度表明，GARS-M评分与步幅长度之间的关系（r = -0.754）以及GARS-M评分与行走速度之间的关系（r = -0.679）具有统计学意义。GARS-M的平均评分能够区分有和没有反复跌倒史的体弱老年人（平均GARS-M评分分别为9.0和3.8）。
GARS-M是一种可靠且有效的测量方法，可用于记录与社区居住的体弱老年人跌倒风险增加相关的步态特征，并且可能为已有的定量步态评估方法提供一种临床有用的替代方法。
