Reliability and validity of the dynamic gait index in persons with chronic stroke
Reliability and validity of the dynamic gait index in persons with chronic stroke
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DOI：
10.1016/j.apmr.2007.08.109
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发表时间：
2007-11-01
影响因子：
4.3
通讯作者：
Cattaneo, Davide
中科院分区：
文献类型：
--
作者：
Jonsdottir, Johanna;Cattaneo, Davide
张建军，张建军。动态步态指数在慢性脑卒中患者中的信度和效度。中华医学杂志2007；22(3):391 - 391。目的：建立动态步态指数（DGI）作为慢性脑卒中患者动态平衡测量指标的重测信度、互测信度及并行构念效度。设计：队列研究。环境：日间医院和康复中心的流动护理。参与者：连续25名参与者，中风后至少3个月，能够在有或没有助行器的情况下行走至少10米，参加了这项研究。两名独立评级者对DGI的表现进行了评级。干预措施：不适用。主要观察指标：DGI分为两个测试阶段，间隔3天。在第二阶段，参与者由2个评分员打分。采用类内相关系数（ICCs）、模型2、L和Bland和Altman方法分析总分和单项得分。并发构念效度通过与Berg平衡量表、定时行走测试、定时起身&行走测试和特定活动平衡信心量表的相关结果进行检验。结果：重测ICCs和总分的解释者信度较好(.96，。而单项得分的信度为中等至良好(范围为，。55 iseq指数)。并发构念效度的假设得到了所有测量值的证实（范围为0.68 - 0.83）。结论：DGI量表具有较高的信度，并与其他平衡和活动能力量表具有同步效度。它是评估慢性脑卒中患者动态平衡的有效临床工具。
Jonsdottir J, Cattaneo D. Reliability and validity of the Dynamic Gait Index in persons with chronic stroke. Arch Phys Med Rehabil 2007;88:1410-5.Objective: To establish the test-retest and interrater reliability as well as the concurrent construct validity of the Dynamic Gait Index (DGI) as a measure for dynamic balance in people with chronic stroke.Design: Cohort study.Setting: Day hospital and ambulatory care at a rehabilitation center.Participants: A consecutive sample of 25 participants, at least 3 months poststroke and able to walk at least 10m with or without a walking aid, participated in the study. Two independent raters rated performances on the DGI.Interventions: Not applicable.Main Outcome Measures: The DGI was administered in 2 testing sessions 3 days apart. In the second session, the participants were rated by 2 raters. Intraclass correlation coefficients (ICCs), model 2,L and the Bland and Altman method were used to analyze total scores and item scores. Concurrent construct validity was tested by correlating results to the Berg Balance Scale, the timed walking test, the Timed Up & Go test, and the Activities-specific Balance Confidence Scale.Results: ICCs for test-retest and interrater reliability of total scores were good (.96,.96, respectively) whereas reliability for single item scores was moderate to good (range,.55 -.93). The hypotheses for concurrent construct validity were confirmed with all measures (range,.68-.83).Conclusions: The DGI showed high reliability and showed evidence of concurrent validity with other balance and mobility scales. It is a useful clinical tool for evaluating dynamic balance people with chronic stroke.