An upper extremity kinematic model for evaluation of hemiparetic stroke
An upper extremity kinematic model for evaluation of hemiparetic stroke
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DOI：
10.1016/j.jbiomech.2005.01.008
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发表时间：
2006-01-01
影响因子：
2.4
通讯作者：
Harris, GF
中科院分区：
文献类型：
--
作者：
Hingtgen, B;McGuire, JR;Harris, GF
量化康复进展对于准确评估临床治疗是必要的。利用VICON运动分析系统建立了上肢的三维运动学模型，以求取躯干、肩部和肘部的关节角度。严格的评估证实了该系统的准确性和精密度。作为应用实例，该模型被用来评估8例偏瘫痉挛患者在完成一组到达任务时的上肢运动。主要观察指标包括运动时间、运动范围、最大角速度和峰值速度所达到的百分比等运动学变量。该模型计算了受影响和未受影响手臂的运动模式。健臂表现出比患臂更大的运动范围和更高的角速度。频谱分析(功率谱)显示患肢肘角和角速度的频谱含量低于健肢。该模型可以准确地量化UE臂的运动，有助于卒中康复的评估和规划，有助于缩短康复时间。(C)2005爱思唯尔有限公司。保留所有权利。
Quantification of rehabilitation progress is necessary for accurately assessing clinical treatments. A three-dimension (3D) upper extremity (UE) kinematic model was developed to obtain joint angles of the trunk, shoulder and elbow using a Vicon motion analysis system. Strict evaluation confirmed the system's accuracy and precision. As an example of application, the model was used to evaluate the upper extremity movement of eight hemiparetic stroke patients with spasticity, while completing a set of reaching tasks. Main outcome measures include kinematic variables of movement time, range of motion, peak angular velocity, and percentage of reach where peak velocity occurs. The model computed motion patterns in the affected and unaffected arms. The unaffected arm showed a larger range of motion and higher angular velocity than the affected arm. Frequency analysis (power spectrum) demonstrated lower frequency content for elbow angle and angular velocity in the affected limb when compared to the unaffected limb. The model can accurately quantify UE arm motion, which may aid in the assessment and planning of stroke rehabilitation, and help to shorten recovery time. (c) 2005 Elsevier Ltd. All rights reserved.