背越式跳高弧线段助跑的生物力学分析及其技术特点

背越式的助跑速度突飞猛进提高的当今，使人体在弧线助跑过程中，获得一个既合理又适宜的内倾角度，从而加大腾起角，加快助跑速度，获得良好的起跳效果，以达到更理想的跳高成绩尤为重要。运用生物力学理论，对弧线助跑人体内倾角及其动作特点与助跑速度和圆弧半径等相关因素进行了分析和探讨，找出相关因素的内在联系，避免实践中片面地去追求内倾和加速，用于实践意义重大。

Biomechanical Analysis and Technical Characteristics of Approach Run in Arc in Fosbury Flop

At present the speed in the approach run of Fosbury flop is increasing rapidly day by day. Whenthe body is approaching in the arc, it attains a reasonable and suitable inward obliquity. Thereby, the lift angle is increased , the approaching speed is accelerated and a good result of take-off is obtained so as to achievemore perfect results of high jump. By applying biomechanical theory, the correlative factors of the inwardobliquity of the body during approaching in the arc, the characteristics of that movement, the speed of the approach and the radius of the arc were analyzed and discussed. The internal relations of those correlative factorswere found out in order to avoid unilateral pursuing inward obliquity and acceleration, which is of great importance in practice.