Hebert Jacqueline S, Lewicke Justin, Williams Thomas R, Vette Albert H
Division of Physical Medicine and Rehabilitation, University of Alberta, Edmonton, Alberta, Canada;
J Rehabil Res Dev. 2014;51(6):918-32. doi: 10.1682/JRRD.2013.10.0228.
Motion analysis is an important tool for examining upper-limb function. Based on previous work demonstrating a modified Box and Blocks (BB) test with motion capture to assess prosthetic performance, we collected data in 16 nondisabled participants to establish normative kinematics for this test. Four motions of the modified BB test were analyzed to establish kinematic data for upper-limb and trunk motion. The test was repeated for right and left arms in standing and seated positions. Data were compared using a nonparametric Friedman test. No differences were found between right- and left-hand performance other than for task completion time. Small but significant differences were found for standing and seated performance, with slightly greater ranges in standing for axial trunk rotation, medial-lateral sternum displacement, and anterior-posterior hand displacement. The kinematic trajectories, however, were very consistent. The consistency in our nondisabled data suggests that normative kinematic trajectories can be defined for this task. This motion capture procedure may add to the understanding of movement in upper-limb impairment and may be useful for measuring the effect of interventions to improve upper-limb function.
运动分析是检查上肢功能的重要工具。基于之前的研究工作，即通过运动捕捉对改良版箱块（BB）测试进行评估以衡量假肢性能，我们收集了16名非残疾参与者的数据，以建立该测试的标准运动学数据。对改良版BB测试的四种动作进行了分析，以建立上肢和躯干运动的运动学数据。该测试在站立和坐姿下对右臂和左臂重复进行。使用非参数弗里德曼检验对数据进行比较。除了任务完成时间外，未发现右手和左手表现之间存在差异。站立和坐姿表现存在微小但显著的差异，站立时轴向躯干旋转、胸骨内外侧位移和手部前后位移的范围略大。然而，运动轨迹非常一致。我们非残疾数据中的一致性表明，可以为该任务定义标准运动轨迹。这种运动捕捉程序可能有助于增进对上肢损伤中运动的理解，并且可能有助于测量改善上肢功能的干预措施的效果。
