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本文对世界青年田径锦标赛(北京)男子背越式跳高冠军黄海强在世青赛上和全国田径大奖赛决赛(郑州站)上的最后一步助跑至起跳的技术分析比较后发现,他在世青赛上最后一步助跑进入起跳时脚触地瞬间质心的水平速度及起跳获得的垂直质心速度比大奖赛上有所提高,从起跳效果看,起跳腿的退让收缩,膝、踝的快速屈伸能力发挥和接近“正心起跳”均较好,是提高H1和H2高度的原因,过杆效果不好,影响了成绩的发挥。他的身体腾起高度H2和身体重心腾起的最大高度都达到了世界顶级优秀运动员水平。
This article compares the technical analysis of the final run from the World Championships in Athletics Championships (Beijing) to the take-off of the World Championships in Beijing at the World Youth Championships and the National Grand Prix Final (Zhengzhou Station) The last step of the race to run into the jump when the foot touch the center of gravity and the vertical speed of the vertical centroid heart rate to get higher than the Grand Prix has been improved from the take-off effect, take-off leg retraction contraction knee, ankle rapid flexion and extension capabilities And close to “just heart jump” are better, is to raise the height of H1 and H2 reasons, over-rod effect is not good, affecting the performance of the play. His body has raised the height of H2 and the maximum height of the body center of gravity have reached the level of the world’s top elite athletes.