Validity and reproducibility of the Functional Gait Assessment in persons after stroke
Validity and reproducibility of the Functional Gait Assessment in persons after stroke
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DOI：
10.1177/0269215518791000
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发表时间：
2019-01-01
影响因子：
3
通讯作者：
Beelen, Anita
中科院分区：
文献类型：
--
作者：
Van Bloemendaal, Maijke;Bout, Walter;Beelen, Anita
目的：评价功能性步态评估（FGA）用于测量脑卒中患者步行平衡能力的结构效度和重复性。设计：横断面研究。单位：住院和门诊康复中心。主题：52例卒中后患者（中位（25%和75%）卒中后时间为6（5-10）周），具有独立行走能力（平均步态速度1.1 +/- .4 m/s）。方法：受试者在1至8天内由同一研究者完成两次标准化FGA。通过检验与两项定时步行试验、贝格平衡量表和卒中影响量表的活动度域（使用相关系数（r））以及与功能性Ambassador分类（使用Kruskal-Wallis检验）相关的假设，评价有效性。用组内相关系数和测量标准误评估FGA评分的重现性。结果：受试者在第一次FGA中的平均得分为22分（满分30分）。中度至高度显着相关性（r. 61-. 83）和功能性截肢类别之间的FGA中位数评分的显着差异被发现。总分的评分者间、评分者内和重测信度均为优秀。测量的标准误差和最小可检测变化分别为2和6点。没有观察到相关的上限效应。结论：FGA表现出良好的测量性能，中风后的人，并没有产生天花板效应相比，其他能力的措施。在临床实践中，在解释行走平衡的变化时，应考虑6分的测量误差。
Objective: To evaluate construct validity and reproducibility of the Functional Gait Assessment (FGA) for measuring walking balance capacity in persons after stroke. Design: Cross-sectional study. Setting: Inpatient and outpatient rehabilitation center. Subjects: Fifty-two persons post-stroke (median (25% and 75% percentiles)) time post-stroke 6 (5-10) weeks) with independent walking ability (mean gait speed 1.1 +/- .4 m/s). Methods: Subjects completed a standardized FGA twice within one to eight days by the same investigator. Validity was evaluated by testing hypotheses on the association with two timed walking tests, Berg Balance Scale, and the mobility domain of the Stroke Impact Scale using correlation coefficients (r), and with Functional Ambulation Categories using the Kruskal-Wallis test. Reproducibility of FGA scores was assessed with intraclass correlation coefficient and standard error of measurement. Results: Subjects scored a median of 22 out of 30 points at the first FGA. Moderate to high significant correlations (r .61-.83) and significant differences in FGA median scores between the Functional Ambulation Categories were found. Eight hypotheses (80%) could be confirmed. Inter-rater, intra-rater, and test-retest reliability of the total scores were excellent. The standard error of measurement and minimal detectable change were 2 and 6 points, respectively. No relevant ceiling effect was observed. Conclusion: The FGA demonstrated good measurement properties in persons after stroke and yielded no ceiling effect in contrast to other capacity measures. In clinical practice, a measurement error of 6 points should be taken into account in interpreting changes in walking balance.