改良步态效能量表：在老年人中建立心理测量特性。
The modified Gait Efficacy Scale: establishing the psychometric properties in older adults.
机构信息
Department of Physical Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
出版信息
Phys Ther. 2012 Feb;92(2):318-28. doi: 10.2522/ptj.20110053. Epub 2011 Nov 10.
BACKGROUND
Perceived ability or confidence plays an important role in determining function and behavior. The modified Gait Efficacy Scale (mGES) is a 10-item self-report measure used to assess walking confidence under challenging everyday circumstances.
OBJECTIVE
The purpose of this study was to determine the reliability, internal consistency, and validity of the mGES as a measure of gait in older adults.
DESIGN
This was a cross-sectional study.
METHODS
Participants were 102 community-dwelling older adults (mean [±SD] age=78.6±6.1 years) who were independent in ambulation with or without an assistive device. Participants were assessed using the mGES and measures of confidence and fear, measures of function and disability, and performance-based measures of mobility. In a subsample (n=26), the mGES was administered twice within a 1-month period to establish test-retest reliability through the intraclass correlation coefficient (ICC [2,1]). The standard error of measure (SEM) was determined from the ICC and standard deviation. The Cronbach α value was calculated to determine internal consistency. To establish the validity of the mGES, the Spearman rank order correlation coefficient was used to examine the association with measures of confidence, fear, gait, and physical function and disability.
RESULTS
The mGES demonstrated test-retest reliability within the 1-month period (ICC=.93, 95% confidence interval=.85, .97). The SEM of the mGES was 5.23. The mGES was internally consistent across the 10 items (Cronbach α=.94). The mGES was related to measures of confidence and fear (r=.54-.88), function and disability (Late-Life Function and Disability Instrument, r=.32-.88), and performance-based mobility (r=.38-.64).
LIMITATIONS
This study examined only community-dwelling older adults. The results, therefore, should not be generalized to other patient populations.
CONCLUSION
The mGES is a reliable and valid measure of confidence in walking among community-dwelling older adults.
背景
感知能力或信心在决定功能和行为方面起着重要作用。改良步态效能量表（mGES）是一种 10 项自评量表，用于评估在具有挑战性的日常环境下行走的信心。
目的
本研究旨在确定 mGES 作为评估老年人步态的可靠性、内部一致性和有效性。
设计
这是一项横断面研究。
方法
参与者为 102 名居住在社区的老年人（平均[±SD]年龄=78.6±6.1 岁），他们可以独立行走，无论是否使用辅助设备。参与者使用 mGES 以及信心和恐惧量表、功能和残疾量表以及基于表现的移动性量表进行评估。在一个亚样本（n=26）中，在 1 个月内两次进行 mGES 测试，通过组内相关系数（ICC[2,1]）确定测试-重测信度。通过 ICC 和标准差确定测量误差的标准误差（SEM）。计算 Cronbach α 值以确定内部一致性。为了确定 mGES 的有效性，使用 Spearman 等级相关系数来检查与信心、恐惧、步态和身体功能和残疾的测量值之间的关联。
结果
mGES 在 1 个月的时间内显示出测试-重测可靠性（ICC=.93，95%置信区间=.85，.97）。mGES 的 SEM 为 5.23。mGES 在 10 个项目中具有内部一致性（Cronbach α=.94）。mGES 与信心和恐惧测量值相关（r=.54-.88），与功能和残疾测量值相关（晚年功能和残疾工具，r=.32-.88），与基于表现的移动性测量值相关（r=.38-.64）。
局限性
本研究仅检查了居住在社区的老年人。因此，结果不应推广到其他患者群体。
结论
mGES 是一种可靠且有效的社区居住老年人行走信心测量工具。
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