中外优秀男子跳远运动员成绩损失原因的比较研究

Comparative Research on the Reasons of Chinese and Foreign Men Long Jump Athletes' Performance Loss

通过文献资料和三维摄像等方法,对中外优秀男子跳远运动员的成绩损失进行了比较研究。结果表明:我国运动员总损失为0.27m。其中落地损失为0.12m,所占比例最大(44.4%),主要由双脚跟不齐、臀部后坐或脚跟后撤造成;踏板损失为0.10m(37.1%),原因在于助跑速度过早减速(倒2步),最后2步步长变化大;起跳腿离地瞬间的偏角损失为0.05m(18.5%),故如何减少落地损失是今后训练的重点。另外,也提出了针对性的训练方法。

Through the method of literature data and 3 Dcameras,research and compare the performance loss of Chinese and foreign excellent men long jump athletes.The results showed that:Total loss for Chinese athletes is 0.27 m,loss of landing among this is 0.12 moccupy the maximum proportion(44.4%),mainly caused by irregularity of heel,hip recoil or heel recoil.Loss of step on the take-off board is 0.12 m(37.1%),reason is the run-up speed reducing early(the second step from last),the length of last two steps become longer.The instantaneous deflection loss of takeoff leg leave earth is 0.05 m(18.5%),therefore,how to reduce the landing loss is the focus of future training.In addition,put forward the pertinence training method.