试论如何掌握好背越式跳高的背弓动作

How to master well the back bending in back style

背越式跳高采用的是弧线助跑,即在弧线助跑的延长线上放脚完成起跳动作,使人体腾起后形成一处向上、向前的切线抛物线运动轨迹,上身背对横杆完成背弓的过杆动作。较合理利用起跳后人体所获得的有限高度完成好背弓过杆动作,则成为背越式跳高教学中的重点、难点。而掌握好背弓动作,又与准确的弧线助跑适宜起跳点有着密切的关系。

In back style,pitch arch approach run is adopted. The start is finished releasing the feet on the extensive line of the pitch arch approach run. The body in flight forms parabola orbit forward and upward. The upper body finishes clearing the bar by bending the back. This method of clearing the bar better use the height to finish the back bending clearing movement. It is important and difficult point in teaching back style. A good command of back bending can lead to accurate pitch arch approach run.