食指触点的运动质量评价

Motion quality evaluation of point touching movement of index finger

尝试从宏观上对运动进行客观、定量的评价 ,以食指触点运动为例 ,对垂直面内食指触点动作作了实验规范 ,利用自制设备完成了5名健康青年男子、3种难易程度食指触点运动的三维检测。针对食指触点运动定义了触点动作难度指标与执行指标 ,结合其它具有普遍意义的物理量提出了触点动作的评价指标 ,利用评价指标对实验中的不同人相同动作与相同人不同动作的食指触点运动作了运动质量分析。

This paper proposes a set of objective and quantitative human motion evaluation indices, among which the index of difficulty and index of performance are introduced as the general indices for the quality measure of 2 Dtarget to target movement. As an example, the point touching movement of index finger, which is a basic functional action of index finger in the daily life of human beings, were experimentally investigated. In the experiment five healthy male subjects were asked to perform three point touching movement tasks which have different indices of difficulty. All movements were recorded by a 3 D motion analysis system. Later, their motion qualities were measured with theseevaluation metrics. The results showed that these indices are reasonable and have potential applications to biomedical engineering.