University of Gothenburg, Gothenburg, SE, Sweden.
Neurorehabil Neural Repair. 2012 Nov-Dec;26(9):1106-15. doi: 10.1177/1545968312448234. Epub 2012 May 30.
Kinematic analysis is a powerful method for an objective assessment of movements and is increasingly used as an outcome measure after stroke. Little is known about how the actual movement performance measured with kinematics is related to the common traditional assessment scales. The aim of this study was to determine the relationships between movement kinematics from a drinking task and the impairment or activity limitation level after stroke.
Kinematic analysis of movement performance in a drinking task was used to measure movement time, smoothness, and angular velocity of elbow and trunk displacement (TD) in 30 individuals with stroke. Sensorimotor impairment was assessed with the Fugl-Meyer Assessment (FMA), activity capacity limitation with the Action Research Arm Test (ARAT), and self-perceived activity difficulties with the ABILHAND questionnaire.
Backward multiple regression revealed that the movement smoothness (similarly to movement time) and TD together explain 67% of the total variance in ARAT. Both variables uniquely contributed 37% and 11%, respectively. The TD alone explained 20% of the variance in the FMA, and movement smoothness explained 6% of the variance in the ABILHAND.
The kinematic movement performance measures obtained during a drinking task are more strongly associated with activity capacity than with impairment. The movement smoothness and time, possibly together with compensatory movement of the trunk, are valid measures of activity capacity and can be considered as key variables in the evaluation of upper-extremity function after stroke. This increased knowledge is of great value for better interpretation and application of kinematic data in clinical studies.
运动学分析是一种客观评估运动的有力方法，并且越来越多地被用作中风后的结果测量指标。关于运动学测量的实际运动表现与常见的传统评估量表之间的关系，人们知之甚少。本研究的目的是确定从饮水任务中得出的运动学运动与中风后损伤或活动受限程度之间的关系。
使用运动学分析来测量饮水任务中的运动性能，以测量运动时间、肘部和躯干位移（TD）的平滑度以及角速度。使用 Fugl-Meyer 评估（FMA）评估感觉运动损伤，使用动作研究上肢测试（ARAT）评估活动能力受限，使用 ABILHAND 问卷评估自我感知的活动困难。
向后多元回归显示，运动平滑度（与运动时间相似）和 TD 共同解释了 ARAT 总方差的 67%。这两个变量分别独立贡献了 37%和 11%。TD 单独解释了 FMA 方差的 20%，运动平滑度解释了 ABILHAND 方差的 6%。
在饮水任务中获得的运动学运动表现测量与活动能力的相关性强于与损伤的相关性。运动平滑度和时间，可能与躯干的代偿运动一起，是活动能力的有效测量指标，可以被视为中风后上肢功能评估的关键变量。这些知识的增加对于在临床研究中更好地解释和应用运动学数据具有重要价值。
