三人板鞋运动的运动学特征

Kinetic characteristics of the board-shoe game played by three persons

通过二维定点摄像,从运动生物力学角度对广东省大学生板鞋男女代表队进行动作技术分析,结果显示:1)大多数板鞋代表队采用腰式搭配是合理的,因为腰式搭配有利于"三人合一,步调一致";2)男子板鞋代表队的起跑技术效果好,正式起动前身体处于微动状态,女子代表队的起跑动作不利于成绩的提高,需要改善;3)男女100 m的全程跑速度分配规律均较合理,经济高效,但女子60 m的速度分配不合理,建议女子运动员改变60 m跑加速策略;4)女子在跑动过程中,身体重心高,蹬地角度大,造成人板系统重心上下起伏幅度较大,影响跑进速度。

By means of fixed point 2D photography, the authors performed a technical move analysis on male and female college student board-shoe representative teams of Guangdong province from the perspective of biodynamics, and revealed the following findings： 1） it is rational for most board-shoe representative teams to adopt the dumbbell style combination, because it is conducive to the ＂harmonious integration of three players＂; 2） the take-off technique of male board-shoe representative teams achieved a good effect, and the body of the male players was in a ready condition before official take-off, while the take-off move of female representative teams was not conducive to enhancing performance, thus should be improved; 3） the speed for men＇s and women＇s full course 100m run was distributed rationally, highly efficient, but the speed for women＇s 60m run was not distributed rationally, so it is suggested that female players change their strategy for acceleration in the 60m run; 4） during running female players had a high center of brevity of the body and a big striding angle, which results in a big fluctuation of the center of gravity of the board-player system, thus affecting running speed.