我国部分优秀男子三级跳远运动员水平速度损失原因的运动学分析

通过高速摄影等方法对我国部分男子三级跳远运动员水平速度损失进行了比较分析。结果表明 ,我国运动员在助跑最后阶段有提前准备起跳意识 ,导致后 2步步幅变化过大 ,速度下降 ,进而使单足跳的着板角变小 ,起跳角变大 ,致使第 1跳的向前性差 ,助跑所获取的水平速度不能较好地保持到最后 1跳 ,这是造成水平速度损失的主要原因

The Kinematic Analysis on Loss of Horizontal Velocity for Our Elite Male Triple Jumpers

Through using the method of high speed photograph, the author makes comparative analysis on the loss of horizontal velocity damage for our elite male triple jumpers. The result shows that our jumpers have consciousness of takeoff in advance during the last phase of run up, it leads to stride length of two steps bigger enough, and velocity declines. It also makes the hop with the smaller angle of landing and the bigger angle of taking off. This is the main reason to cause the loss of horizontal velocity.