关于提高铅球左侧支撑技术方法的研究

Research on Improving the Left-supporting Skill in Shot Sport

铅球的主要技术包括持球、滑步、最后用力,拨球和球出手后维持身体平衡几个部分,其中最后用力是决定运动成绩好坏的关键,而稳固的左侧支撑对最后用力的的效果起着举足轻重的作用。为提高左侧支撑技术,在教学中采用固定左肩、左高右低、持球左脚跳和牵拉橡皮条的方法进行练习,通过实践,实验对比,受试者左侧支撑技术和运动成绩均得到了明显的提高。该方法不仅适用教学,而且对训练也有指导价值,具有一定的科学意义。

Major skills in shot sport are holding, sliding, pushing with force at last and keeping body＇ s balance after finishing the whole action, among which pushing with force at last is the key that will determine the athlete＇ s score; however, left- supporting plays an important role in the process. To improve this skill, the method of fixing the left shoulder with the right lower and the left higher, leaping on the left foot with a shot in the hand, and stretching the rubber strip has put into practice. As a result, a clear improvement in the left-supporting skill as well as their scores has been made by the examinees in the experiment. This approach can be applied not only in the teaching, but also it has a guiding value and scientific significance in the training.