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在查阅有关文献资料的基础上,根据人体解剖学和生物力学原理,结合优秀运动员的技术图片,对掷铅球最后用力过程中左腿的工作特征进行分析。 1 掷铅球最后用力过程中左腿工作的意义 在掷铅球过程中,人体是一个对应统一的整体,上与下、左与右,既相互矛盾,又相互依存、协调配合。其中左腿工作的好坏又对最后用力及实效性产生直接影响。笔者认为,在最后用力过程中,左腿的主动快落和支撑主动用力对获得良好的超越器械姿势,髋部的正确运动,上体的前移和转动,对适宜的出手角度、出手高度和加快出手初速度,均有着极其重要的意义。
On the basis of consulting the relevant literature and data, combining with the technical pictures of elite athletes based on human anatomy and biomechanics, the working characteristics of the left leg in the final exertion of throwing shot are analyzed. The significance of the work of the left leg in the final exertion of throwing shot Putting the shot put, the human body is a unitary unity, upper and lower, left and right, both contradictory, interdependent and coordination. The quality of the work on the left leg has a direct impact on the last effort and effectiveness. The author believes that in the process of the last force, the left leg active rapid support and active take the initiative to get better than the instrument posture, the correct hip movement, upper body forward and rotation, the appropriate shot angle, shot height and Speed up the early shot, have a very important significance.