每到严冬季节,日本北方地区都会下大雪。这时所有的室外运动场都被白雪所覆盖,使得那些从事室外训练的运动员们不得不停止训练。为了解决这一问题,日本的体育工作者研究出一种水中训练法,就是让运动员在游泳池中进行技术动作的训练,取得了很好效果。例如,让网球运动员站在泳池中练习挥拍击球动作:首先将球拍放入水中,然后用力向水面上挥动。 Every winter season, northern Japan will be heavy snowfall. At this time all the outdoor playgrounds are covered with snow, making those who work in outdoor training athletes have to stop training. In order to solve this problem, Japanese sports workers have developed a method of water training, which is to train athletes in technical training in the swimming pool and achieved good results. For example, let a tennis player stand in the pool practice swing swing action: first racket into the water, and then forced to the water wave.