腾空是竞走运动犯规的主要表现形式之一。腾空是指竞走双支撑阶段双脚同时离开地面。竞走比赛中,在速度一定的前提下,腾空时间越长,步长就越大;腾空时间越长,支撑时间相对缩短,步频也就相对增加;腾空时间过长,会影响步频的进一步提高。因此,适宜的腾空时间有利于产生较快的速度。但是,腾空时间过长,很容易被判罚腾空犯规而被罚下场。如何有效地控制竞走腾空呢?下面我们对竞走腾空产生的原因及纠正方法加以论述。 Vacating is one of the main manifestations of walking fouls. Vacate refers to walking double support stage feet while leaving the ground. Walking race, under the premise of a certain speed, the longer the vacating time, the greater the step; vacated time is longer, the support time is relatively short, the relative frequency will be relatively increased; vacated for too long, will affect the frequency step further improve. Therefore, the appropriate emptying time is conducive to produce faster speed. However, vacated for too long, it is easy to be sentenced to vacating foul penalty was fined. How to effectively control the racetrack to vacate? Here we explain why the racetrack vacated and the correction method.