Intra-rater and inter-rater reliability of the portable gait rhythmogram in post-stroke patients.
Intra-rater and inter-rater reliability of the portable gait rhythmogram in post-stroke patients.
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DOI：
10.1589/jpts.29.874
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发表时间：
2017-05
影响因子：
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通讯作者：
Shimodozono M
中科院分区：
文献类型：
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作者：
Miyata R;Matsumoto S;Miura S;Kawamura K;Uema T;Miyara K;Niibo A;Ogura T;Shimodozono M
【目的】步态分析，如便携式步态节律图（PGR），为定量评价人体运动提供了客观信息。本研究的目的是评估PGR在脑卒中后患者中的可靠性。[对象与方法]A、B两名评分员对44例脑卒中后患者进行了评分。为了评估评分者内部的信度，评分者A在三个不同的场合（第1、2和3天）测试了受试者。为了评估评分者之间的信度，评分者A和B在同一场合（第3天）独立测试了参与者。[结果]在测试场合或评分者之间没有显著的系统偏差。在舒适速度和最大速度下，评分内信度的组内相关系数为0.93 ~ 0.97，在舒适速度下，评分间信度的组内相关系数为0.97 ~ 0.98，在最大速度下，评分间相关系数为0.87 ~ 0.99。评价者内部调查的标准误差为1.25 - 1.49（舒适速度）和1.62 - 1.77（最大速度），评价者之间调查的标准误差为1.04 - 1.32（舒适速度）和0.91 - 1.26（最大速度）。在90%置信水平下，最小可检测变化范围为2.9 - 4.1%，个体分数在给定时间点的误差范围为±2.1 - 2.9%。【结论】基于PGR在脑卒中后患者中出色的可靠性，可以推荐将其作为该人群步态分析的简单测试。
[Purpose] Gait analysis, such as portable gait rhythmogram (PGR) provides objective information that helps in the quantitative evaluation of human locomotion. The purpose of this study was to assess the reliability of PGR in post-stroke patients. [Subjects and Methods] Two raters (A and B) examined 44 post-stroke patients. To assess intra-rater reliability, rater A tested subjects on three separate occasions (Days 1, 2, and 3). To assess inter-rater reliability, raters A and B independently tested participants on the same occasion (Day 3). [Results] There was no significant systematic bias between test occasions or raters. Intraclass correlation coefficient values were 0.93−0.97 for intra-rater reliability at both the comfortable speed and maximum speed, and 0.97−0.98 (comfortable speed) and 0.87−0.99 (maximum speed) for inter-rater reliability. The standard error was 1.25−1.49 (comfortable speed) and 1.62−1.77 (maximum speed) for intra-rater investigation, and 1.04−1.32 (comfortable speed) and 0.91−1.26 (maximum speed) for inter-rater investigation. At the 90% confidence level, the minimum detectable change ranged from 2.9−4.1%, and the error of an individual’s score at a given time point ranged from ±2.1−2.9%. [Conclusion] Based on this excellent reliability of the PGR in post-stroke patients, it can be recommended as a simple test of gait analysis in this population.