滑步推铅球技术教学中的问题与对策

Problems and solutions on sliding pushshot put in track and field teaching

运用文献资料法、观察法、访谈法、逻辑分析法等研究方法,对田径课教学中学生掌握滑步推铅球技术易出现问题进行研究。结果显示:滑步时上体抬起,左肩后摆,右肩后撤;滑步时蹬摆幅度小,滑步距离过短;推球时肘部下降,形成抛球;滑步结束,臀部后坐重心没有落在弯曲的右腿支撑点附近;最后用力推球时手指手腕用力模糊;团身时上体前屈不够;左侧支撑用力不够;右脚蹬地转髋方式不正确等八个方面为学生掌握技术的主要问题。并针对八个易出现问题的技术动作,分别分析形成错误的原因并提出解决错误的方法。

This paper uses methods of literature,observation,interview,logical analysis to make thorough research on the problems while teaching high school students how to learn sliding push shot put.The results show there are eight wrong ways when students learn how to master the main technologies.These wrong ways are as follows： when sliding,the upper part of body moves upwards,the left shoulder rightly swings,and the right shoulder draws back;put a small range and sliding distance is too short;push the ball down the elbow to form a drop;after sliding,the support does not fall on right leg bending;final pushing with a feeble finger force;the upper body flexion is insufficient;support force is not enough in the left side;The way to turn the hip with right foot stepping the ground.To cope with these problems,writers analyze the causes,and propose the solutions.