Redekop Susan, Andrysek Jan, Wright Virginia
Bloorview Research Institute, Bloorview Kids Rehab, 150 Kilgour Road, Toronto, Ontario, Canada.
Gait Posture. 2008 Nov;28(4):627-33. doi: 10.1016/j.gaitpost.2008.04.008. Epub 2008 Jun 2.
The single-session reliability of 28 discrete spatiotemporal and kinematic variables was evaluated from computerized gait analysis (CGA) in 33 ambulatory children with cerebral palsy (CP), subcategorized according to Gross Motor Function Classification System (GMFCS) Levels I (n=11), II (n=12) and III (n=10). Nineteen boys and 14 girls participated, mean age=8 years 1 month (S.D.=3 years 0 month). Intraclass correlation coefficients (ICCs) estimated reliability, and the number of strides required to obtain an ICC of at least 0.90 was determined. The reliability of discrete gait parameters was dependent upon GMFCS level, with children in GMFCS Level I exhibiting the highest reliability (ICC range=0.70-0.96). GMFCS Levels II and III had lower levels of reliability with ICC values varying from 0.54 to 0.95 and 0.45 to 0.98, respectively. With the exclusion of pelvis range of motion (ROM), an average of four strides provided a reliability estimate of at least 0.90 for GMFCS Level I, while six strides were needed for children in Levels II and III. On the basis of the intrasession reliability results from the present study, further work is recommended to examine the test-retest reliability of these gait parameters in children with CP.
通过计算机步态分析（CGA）对33名患有脑瘫（CP）的门诊儿童的28个离散时空和运动学变量的单次测量可靠性进行了评估，这些儿童根据粗大运动功能分类系统（GMFCS）分为I级（n = 11）、II级（n = 12）和III级（n = 10）。19名男孩和14名女孩参与研究，平均年龄为8岁1个月（标准差 = 3岁0个月）。组内相关系数（ICC）用于估计可靠性，并确定获得至少0.90的ICC所需的步数。离散步态参数的可靠性取决于GMFCS水平，GMFCS I级的儿童表现出最高的可靠性（ICC范围 = 0.70 - 0.96）。GMFCS II级和III级的可靠性较低，ICC值分别在0.54至0.95和0.45至0.98之间变化。排除骨盆运动范围（ROM）后，GMFCS I级平均需要四步才能提供至少0.90的可靠性估计，而II级和III级的儿童则需要六步。基于本研究的单次测量可靠性结果，建议进一步研究这些步态参数在脑瘫儿童中的重测可靠性。
