少年儿童游泳技术训练的重要性及方法

竞技游泳是一项非常独特的运动,因为运动员是悬浮在液体环境中游进的,他们前进时推动的是水,而不是固体物质。与陆地上的运动相比,运动员推动固体物体时所得到的反作用力要小;另一方面,因为水的密度比空气大1000倍左右,水对运动员前进造成的阻力远远大于空气。因此,提高技术效率带来的直接作用是使运动员前进阻力减小,推进力增大。

The Importance of Swimming Technique Training in Children and Teaching Methods

Swimming is a Kind of very unique sport, because the environment we swim is very different from air. The material that we use to produce the propulsion is the water when we swim but not the solid staff. The reaction force that is produced in swim is less than the reaction force when we push a solid mate vial on land on the other hand. The consistency of water is one thousand times than the consistency of air, So the great resistance will be produced when an athlete swims in water. Improving the efficiency of swimming technique will help our athletes to reduce resistance and increase propulsive force.