Division of Physiotherapy, University of Queensland, Brisbane, Australia.
Disabil Rehabil. 2011;33(19-20):1848-53. doi: 10.3109/09638288.2010.549895. Epub 2011 Jan 25.
To determine the test-retest reliability of the GAITRite system in measuring spatio-temporal gait parameters in people with stroke undergoing inpatient rehabilitation and to investigate whether walking ability influences test-retest reliability.
A within-subject repeated measures study was conducted. Twenty-one individuals with first stroke undergoing inpatient rehabilitation participated. The Motor Assessment Scale Item 5 score was used to categorise participants into poorer (score 3 or 4) or better walkers (score 5 or 6). Participants made two passes at a self-selected gait speed over the GAITRite mat on two separate occasions. Intra-class correlation coefficients (ICC(2,1)) and 95% limits of agreement for spatio-temporal gait parameters between the two occasions and groups were determined.
No differences in gait parameters between the two sessions (p > 0.15) were found. Test-retest reliability for the whole group was good to excellent, ICC(2,1) ranging from 0.72 to 0.94. Walking ability did influence these findings with fair to good reliability demonstrated for both poorer (ICC(2,1) > 0.57) and better walkers (ICC(2,1) > 0.41).
It appears that the GAITRite has good test-retest reliability in this group of people with first stroke undergoing rehabilitation. Test reliability seems to be slightly higher for poorer walkers than better walkers.
确定步态分析系统（GAITRite）在测量接受住院康复治疗的中风患者时空步态参数时的重测信度，并探讨行走能力是否会影响重测信度。
采用自身对照的重复测量研究设计。21 名首次中风后接受住院康复治疗的患者参与了本研究。使用运动评估量表第 5 项（Motor Assessment Scale Item 5）的得分，将患者分为行走能力较差（得分 3 或 4）或较好（得分 5 或 6）的组。患者在两次不同的测试中，以自我选择的速度在 GAITRite 测试垫上进行两次行走。两次测试之间和不同分组之间的时空步态参数的组内相关系数（ICC(2,1)）和 95%一致性界限（95% limits of agreement）。
两次测试之间，步态参数无差异（p＞0.15）。整个组的重测信度为良好至优秀，ICC(2,1)范围为 0.72 至 0.94。行走能力确实影响了这些发现，对于行走能力较差（ICC(2,1)＞0.57）和较好的患者（ICC(2,1)＞0.41），均显示出良好到中等的可靠性。
GAITRite 似乎在接受康复治疗的这组首次中风患者中具有良好的重测信度。对于行走能力较差的患者，测试的可靠性似乎略高于行走能力较好的患者。
