【摘要】 400m跑属于短距离跑,400m跑是一项竞争非常激烈的体育运动,它要求运动员要有良好的速度优势,一定的耐力素质和合理的技战术安排.运动员的速度素质,在很大程度上是由遗传决定的,后天较难培养与改变.因此,对于400m跑运动员的身体形态、身体素质及其运动员选材要求更加严格.更多还原

【Abstract】 400 meters race belongs to short distance run,and it is a very fierce sport event.It requires the athlete has good speed ability,endurance and rational tactics arrangement.400-meter race is part of the dash,which is the limit sport supported by non-oxygenic destabilization.It is heredity that decides the athletic level,such as speed ability,reaction time,the highest movement frequency and non-oxygenic stamina,which are hard to acquire and develop by training.The maximum speed and speed endurance determine 400 m race to a great degrees.Thus it is more strictly to select 400-metre athletes in body figure and physical qualification.更多还原