在过去的几十年中,自由泳的变化非常明显。如今,自由泳已经得到了高度的发展,以至于单一形式的泳姿已经不足以让运动员赢得比赛。正如传统中所知的一样,现在必须用各种各样的方法来看待爬泳,从而让运动员游出他们可以达到的最快速度。在这里,我们将自由泳分为了三类。自由泳的三种泳势臀部驱动式自由泳在现代的游泳运动员所采用的自由泳泳势中,臀部驱动式自由泳是较为传统的一种,主要运用于训练中。比赛时,杰出的运动员会在200米及更 In the past few decades, freestyle changes are obvious. Today, freestyle has been highly developed, so that a single form of stroke is not enough to allow athletes to win the game. As is traditionally known, it is time to look at crawling in a wide variety of ways, allowing athletes to swim as fast as they can. Here, we divided freestyle into three categories. Three Swimmers Freestyle Swim Hip-Driven Freestyle Hips-driven freestyle is a more traditional type of freestyle swimmer used by modern swimmers and is used primarily in training. Outstanding athletes will be at 200 meters and more during the match