影像测量数据在武术运动技术分析中的应用

Application of Image Measurement Data in Wushu Technique Analysis

以武术"旋风脚720度接马步"动作为研究实例,探索影像测量数据在武术技术分析中的应用问题。认为利用人体重心位移和速度曲线相结合的方法,能够快速、准确的划分武术技术动作阶段。利用速度数据结合人体质量、动作时间进行换算,可以间接了解人体与地面间的受力状况,弥补测力受限的缺陷;利用关节角度数据可以准确分析武术运动员的动作姿态;首次提出利用头、四肢关节与人体重心之间的位置关系间接判断转动惯量的变化,可解决当前武术技术分析中对转动运动数据的需求。

This paper takes ＂whirlwind leg 720°preceding horse step＂ as a case study to explore the application of image measurement data in Wushu technical analysis. It is maintained that phases of Wushu technical moves can be quickly and accurately designated by combining gravity center displacement of human body with speed curve. The force - bearing condition of the human body and the ground can be known by combining speed data with human body mass and technical move time to make up for the shortcoming of force measurement. The technical move gesture of Wushu sportsmen can be accurately analyzed by means of joint angle data. In this article, for the first time, it is suggested that inertia change can be judged through the location relationship between the head and joints of arms and legs and center gravity of human body to satisfy the demand of technical move data in Wushu technique analysis.