论文部分内容阅读
在掷铁饼的技术中(以右手掷铁饼为例),最后用力是铁饼技术环节中最主要的一个环节,最后用力的动作技术正确与否,将直接影响到成绩的好坏,因此, 在铁饼的技术教学中,要抓好最后用力的技术环节。而在最后用力的技术环节中,左侧的制动又是关键一环, 左侧制动的主要作用就是在最后用力时以身体左侧为轴转动,增加身体的转动半径,也就增大了投掷臂的力矩,提高了最后用力的挥臂速度,从而提高运动成绩。有的运动员在训练和比赛时,感觉用力顺序很好,但成绩却不怎样理想,这是因为在最后用力时,没有正确体会到左侧制动,造成左肩的后撤或身体左侧没有形成强有力的支撑,使身体力量没有向统一的方向运动,造成力量的分解。为了改正这个错误动作,我从多年的训练实践和体会中总结出了以下有效改进左侧制动的技术方法。
In the discus throwing technique (taking the right-handed discus throwing as an example), the last force is the most important aspect of the discus technique. The correctness of the last acting technique will directly affect the performance of the discus. Therefore, Of technical teaching, we must grasp the last hard technical aspects. In the last hard technical aspects, the brake on the left is the key link, the main role of the left brake is to force the left side of the body as the axis of rotation, increasing the body’s turning radius, also increased Throwing arm torque, improve the last force of the arm speed, thereby enhancing the performance of sports. Some athletes in the training and competition, feeling good order, but the results are not ideal, it is because the last force, did not correctly understand the left brake, causing the left shoulder retreat or the left side of the body did not form Strong support, so that physical strength did not move in a unified direction, resulting in the decomposition of power. In order to correct this erroneous action, I have summarized the following technical methods for effectively improving the left brake in many years of training practice and experience.