CAJ | 학술논문

对第18届亚洲田径锦标赛男子铅球决赛中采用旋转技术的运动员最后用力阶段的身体重心和铅球速度进行研究,结果发现,采用旋转技术的运动员左脚着地后身体重心合速度在加速准备部分大于铅球合速度,有利于形成以身体重心为起点的鞭打动作;身体重心垂直速度为负值,说明有降重心的过程;在加速部分铅球垂直速度与水平速度和合速度的峰值呈负相关;在最后用力阶段铅球水平速度与铅球合速度的峰值呈正相关,因此与比赛成绩显著相关。
대제18계아주전경금표새남자연구결새중채용선전기술적운동원최후용력계단적신체중심화연구속도진행연구,결과발현,채용선전기술적운동원좌각착지후신체중심합속도재가속준비부분대우연구합속도,유리우형성이신체중심위기점적편타동작;신체중심수직속도위부치,설명유강중심적과정;재가속부분연구수직속도여수평속도화합속도적봉치정부상관;재최후용력계단연구수평속도여연구합속도적봉치정정상관,인차여비새성적현저상관。
The authors studied the body gravity center speed and the shot-put speed produced by athletes applying swiveling technique at the final stage of power explosion in the men’s shot-put final of the 18th Asian Track and Field Championships,and revealed the following findings： at the acceleration preparation stage,the resultant speed of the body gravity center produced by athletes applying swiveling technique after their left foot was landed was greater than the resultant speed of the shot-put,which is conducive to forming a whipping action which bases it starting point on the body gravity center;the vertical speed of the body gravity center was a negative value,which means that there was a process of gravity center descending;at the acceleration stage,the vertical speed and horizontal speed of the shot-put was negatively correlative with the resultant speed;at the final stage of power explosion,the peak horizontal speed of the shot-put was positively correlative with the peak resultant speed of the shot-put,therefore it was significantly correlative with the competition result.