蹲距式起跑的两种姿势

2025-04-06 13:25:05
推荐回答(1个)
回答1:

蹲踞式起跑

1、起跑器的安装:“普通式”

前起跑器距起跑线一脚半(约45厘米)。后起跑器距前起跑器一脚半(约一小腿长),两个起跑器中轴线间隔约15厘米,前起跑器抵足板与地面的夹角约45度,后起跑器约为75度。

2、起跑的动作要领:

起跑包括“各就位”、“预备”、鸣枪三个动作。听到“各就位”口令后,做几次深呼吸,轻松地走到起跑器前,两手撑地,有力的脚先蹬紧前起跑器,另一只脚再蹬紧后起跑器,然后后膝跪在地上,两手拇指相对,其余四指并拢,虎口向前撑于起跑线后。两手约与肩同宽,两臂伸直,肩微前移超过起跑线,颈部自然放松,两眼视前下方半米处,注意听“预备”口令。听到“预备”口令后,平稳抬起臀部,稍高于肩,身体重心前移,前腿大小腿夹角约为90度,后腿约为120度。注意力高度集中,当听到“枪声”时,两手迅速推离地面,两臂用力前后摆动,两腿迅速蹬离起跑器。后腿以膝领先沿着地面迅速向前上方摆出,用前脚掌扒地,同时后腿要把髋、膝、踝三关节充分蹬直,把身体向前送出。做到起跑时反应快、蹬摆快、第一步落地快。

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