The kinematic analysis of trunk recovery in patients with stroke has sparsely been investigated. This study is aimed at evaluating the validity of a kinematic system for measuring trunk movements. Forty-five right-handed stroke patients in the post-acute phase were assessed in a within-subject design, before and after intensive conventional neurorehabilitation treatment. An eight-camera system was used to analyze the three-dimensional (3D) kinematics of trunk during typical displacements (anterior/posterior and right/left lateral). Kinematic trunk measurements and clinical evaluations were performed immediately in a blind fashion before and after rehabilitation treatments. Of the 9 kinematic variables, 4 showed a significant relationship with the clinical measure of the trunk: Trunk Control Test (TCT). Among these, only the kinematic evaluation of the lateral pelvic was the best predictor (R2= 0.2; p-level< 0.006; beta= 0.41) of clinical recovery measured with TCT. Here, we present a 3D kinematic system for assessing trunk impairments in stroke patients. We found that different kinematic variables reflect motor recovery as assessed by conventional clinical scale. Further evaluations, including reliability analysis and application on patients with gait impairments, are required.

中文翻译：

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使用3D运动学方法评估中风患者的躯干恢复情况。

很少研究中风患者躯干恢复的运动学分析。这项研究旨在评估用于测量躯干运动的运动学系统的有效性。在强化常规神经康复治疗之前和之后，在受试者内部设计中评估了急性期后右手卒中的45例患者。使用八摄像头系统分析典型位移（前/后和右/左外侧）期间躯干的三维（3D）运动学。在康复治疗之前和之后，以盲目方式立即进行运动躯干测量和临床评估。在9个运动学变量中，有4个显示与躯干的临床测量指标显着相关：躯干控制测试（TCT）。在这些当中，TCT测量的临床恢复只有最好的运动学评估（R2 = 0.2； p-水平<0.006；β= 0.41）。在这里，我们提出了一种3D运动系统，用于评估中风患者的躯干损伤。我们发现不同的运动学变量反映了运动恢复，如通过常规临床量表评估的那样。需要进一步的评估，包括可靠性分析和对步态障碍患者的应用。