【摘要】 采用两台SONY摄像机对我国优秀男子跳高运动员的试跳进行现场同步拍摄,选取有关运动学参数与国外优秀运动员做对比分析。研究结果:我国运动员起跳着地瞬间质心向下的垂直速度较小,符合我国运动员的身体特点;在起跳阶段,我国运动员双臂和摆动腿的摆动速度与优秀运动员相比较低,主要与起跳腿的专项力量素质有关;我国运动员起跳时间与国外优秀运动员相比较短,与蹬伸距离较短有关。相对缩小起跳的缓冲时间,有利于提高起跳的垂直速度。决定跳高起跳垂直速度的诸因素均与起跳腿的专项力量素质有关。更多还原

【Abstract】 The trial take off of some elite high jumpers were filmed live by two Sony cameras.Some related reference parameters were selected and some elite high jumpers from China and other countries were analyzed.It has been shown that the vertical velocity of Chinese high jumpers’ instantaneous mass center is low at the time of take-off,according with the characteristics of Chinese high jumpers.The low speed of the swinging arms and legs is mainly related to the strength of the making of take-off legs.The take-off time of Chinese high jumpers is shorter than that of others.That is related to the shorter distance.The relatively lower take-off amortizing time is in favor of boosting the take-off vertical speed.All kinds of the reason deciding the take-off vertical speed is related to the quality of taking off leg strength.更多还原