正如其他水生哺乳动物,如海豚、海豹,及鱼类等动物一样,鞭状打腿是人类自身生理结构与水的阻力相互作用产生的自然结果。在浩如烟海的游泳文献中,不乏用鞭状来形容泳姿的。但鞭子的特点是有收有送,由近及远,直至鞭长莫及。依此特点来衡量四种泳姿中的踢腿动作,严格讲,也只有蛙泳腿是与其相吻合的;而其他三种泳姿的踢腿,双脚基本是上下踢打,与髋部的距离是不变的,这显然不在 Just as other aquatic mammals, like dolphins, seals, and fish, whiplash is a natural consequence of the physical interaction between human physiology and water resistance. In the voluminous swimming literature, there is no lack of whip used to describe swimming posture. However, the characteristics of the whip is received and sent, from near and far, until beyond the reach. According to this feature to measure the four kinds of swimming kicks in the movement, strictly speaking, only the breaststroke legs are consistent with it; and the other three swimming kicks, feet basically kick up and down, and the hip The distance is constant, which obviously is not