Boonstra A M, Fidler V, Eisma W H
Department of Rehabilitation Medicine, University Hospital Groningen, The Netherlands.
Prosthet Orthot Int. 1993 Aug;17(2):78-82. doi: 10.3109/03093649309164360.
This study investigated some aspects of the validity of walking speed recording in 15 normal subjects, 16 trans-femoral amputees and 8 knee disarticulation amputees. The variability and test-retest reliability of walking speed and the influence of simultaneous recording of EMG and goniometry on comfortable and fast walking speeds were studied. The variability between sessions was mainly determined by the variance within each session. The variance of speed within sessions while walking with fast speed, was higher when walking without equipment than when walking with equipment. The variances of speed within sessions of the normal subjects were higher than those for both amputee groups. The test-retest reliability, expressed by the intra-class correlation coefficient, was good: between 0.83 and 0.98. The speed when walking without equipment was significantly higher both in normal subjects and amputees than the speed when walking with equipment.
本研究调查了15名正常受试者、16名经股截肢者和8名膝关节离断截肢者步行速度记录有效性的一些方面。研究了步行速度的变异性和重测信度，以及肌电图和角度测量同时记录对舒适和快速步行速度的影响。各时段之间的变异性主要由每个时段内的方差决定。快速行走时，无装备行走时各时段速度的方差高于有装备行走时。正常受试者各时段速度的方差高于两个截肢组。以组内相关系数表示的重测信度良好：在0.83至0.98之间。正常受试者和截肢者无装备行走时的速度均显著高于有装备行走时的速度。
