Differences in the dynamic gait stability of children with cerebral palsy and typically developing children
Differences in the dynamic gait stability of children with cerebral palsy and typically developing children
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DOI：
10.1016/j.gaitpost.2012.05.029
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发表时间：
2012-07-01
期刊：
影响因子：
2.4
通讯作者：
Corr, Brad
中科院分区：
文献类型：
--
作者：
Kurz, Max J.;Arpin, David J.;Corr, Brad
本研究的目的是评估脑性瘫痪（CP）儿童和正常发育（TD）儿童动态步态稳定性的差异。参与者在跑步机上行走2分钟，作为运动捕捉系统评估行走运动学。Floquet分析用于量化存在于行走运动学中的干扰的消散率，并且变异性测量用于评估存在于步长和宽度中的干扰的大小。Floquet乘数、步长和步长值与粗大运动功能测量（GMFM）的D和E部分相关。与TD儿童相比，CP儿童有更大的Floquet乘数，使用更宽的步长。最大Floquet乘数的大小与步长呈正相关。此外，最大Floquet乘数的大小和步长与GMFM的E部分得分呈负相关。最后，与CP的儿童使用更可变的步长比TD儿童。这些结果表明，患有CP的儿童动态步态稳定性较差，因为他们需要更多的步幅来消除他们行走模式中存在的干扰。为了稳定这些干扰，CP儿童似乎使用更宽的步长并调节步长。总的来说，无法有效地消除步态障碍可能与儿童执行广泛的粗大运动技能的能力有关（例如，例如，在一个实施例中，跨过障碍物、跳跃、走上楼梯）。(C)2012年爱思唯尔B。V.保留所有权利。
The aim of this investigation was to evaluate the differences in the dynamic gait stability of children with cerebral palsy (CP) and typically developing (TD) children. The participants walked on a treadmill for 2 min as a motion capture system assessed the walking kinematics. Floquet analysis was used to quantify the rate of dissipation of disturbances that were present in the walking kinematics, and the variability measures were used to assess the magnitude of the disturbances present in the step length and width. The Floquet multipliers, step width and length values were correlated with Sections D and E of the Gross Motor Function Measure (GMFM). The children with CP had a larger Floquet multiplier and used a wider step width than the TD children. The magnitude of the maximum Floquet multiplier was positively correlated with the step width. Furthermore, the magnitude of the maximum Floquet multiplier and the step width were negatively correlated with the score on Section E of the GMFM. Lastly, the children with CP used a more variable step length than the TD children. These results suggest that children with CP have poor dynamic gait stability because they require more strides to dissipate the disturbances that are present in their walking pattern. In effort to stabilize these disturbances, the children with CP appear to utilize a wider step width and modulate their step length. Overall the inability to effectively dissipate the gait disturbances may be correlated with the child's ability to perform a wide range of gross motor skills (e. g., step over obstacles, jump, walk up stairs). (C) 2012 Elsevier B. V. All rights reserved.