我国女子铁饼优秀运动员过渡和最后用力阶段技术动力学及运动学的特征  

Dynamic and kinetic characteristics of the techniques of excellent discus throwers in China at the transition and final power explosion stages

作　　者：董海军[1] 苏明理[1] 王琨[1] 

机构地区：[1]西安体育学院田径教研室,陕西西安710068

出　　处：《体育学刊》2010年第3期70-76,共7页Journal of Physical Education

基　　金：国家体育总局部分田径项目(训练局田径队)备战2008奥运会科研攻关与科技服务(06012)

摘　　要：对目前我国3名优秀女子铁饼运动员投掷技术进行同步研究发现,宋爱民存在腾空时间短、重心高、右脚着地早、上下肢扭紧差,最后用力阶段重心向投掷方向移动速度快、左右脚在垂直方向和前后方向的力较大、力量的向前行较好;孙太凤缓冲时间较短、右腿蹬伸充分、垂直方向和向前的力量较大;李艳凤过渡阶段上下肢扭紧好、身体后倾角度大、右脚着地对地面冲击力大、左右方向的力较大、力量在左右腿之间移动幅度大、没有转化为向前或者垂直方向的力量,向前性差,蹬伸不充分。By making a synchronous study of the throwing techniques of 3 excellent discus throwers in China, the authors revealed the following findings： SONG Ai-min showed the following technical characteristics： short leaping time, high center of gravity, early right foot landing, poor upper and lower limbs twisting; at the final power explosion stage： a fast speed of moving of the center of gravity towards the throwing direction, a powerful force applied by the left and fight feet in the vertical, backward and forward directions, nice forward moving power; SUN Tai-feng showed the following technical characteristics： short cushion time, fully right foot stretching, a powerful force applied in the vertical and forward directions; LI Yan-feng showed the following technical characteristics： at the transition stage： nice upper and lower limbs twisting, a big body backward tilting angle, a powerful force applied by the right foot to the ground as well as in the left and right directions, a big amplitude of moving of power between the left and fight foot, failure to turn the power into forward or vertical power, poor forward moving, and insufficient stretching.

关 键 词：竞赛与训练 女子铁饼运动员 动力学 运动学特征 中国 

分 类 号：G824.2[文化科学—体育训练]