在推铅球技术中(以右手推铅球为例),最后用力时左侧制动是其中的一个关键环节,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,增加身体转动半径,也就增大了右肩角动量,提高了最后用力的鞭打速度,加快出手速度,从而提高成绩。有的运动员用力顺序很好,但就是最后出手速度不理想,这是因为在最后用力时没有正确体会到左侧制动,造 In the shot put technique (shot with the right hand as an example), the last brake force when the left is one of the key links, the main role of the left brake is to force the left side of the body as the axis of rotation, increase the body Turning radius, also increased the right shoulder angular momentum, increased the last hard whipping speed, speed up the shot, thereby improving performance. Some athletes in good order, but it is the last shot speed is not ideal, it is because at the last force did not correctly understand the left brake, made