论文部分内容阅读
一、动作要领 (一)预备姿势:面向抛掷方向站立(后抛为背向站立),两脚左右开立约同肩宽,双手抱球,两臂自然伸直于体前。 (二)动作过程:两腿半蹲同时上体前屈,双手抱球随之下摆至两腿中间,动作放松有弹性,摆至极点后,紧接着两腿用力蹬伸,头和上体向前上方用力抬起(后抛为向后上方用力抬起),双臂随之主动用力加速向前上方暴发用力抛球(后抛为向后上方暴发用力抛球),出手时髋、膝、踝和上体充分伸展,双臂向抛掷方向送出,出手角度40°左右。后抛实心球是蹬腿挺髋上体适度后
First, the action essentials (A) Preparatory position: standing for the throwing direction (after the throw for the back stand), feet open about the same shoulder width, hands holding the ball, his arms naturally straight in front of the body. (B) the process of action: squatting his legs while upper body flexion, his arms then hold the ball under the hem to the middle of the legs, the action relaxed and flexible, to the extreme, followed by hard legs stretch legs, head and upper body to Forced to lift the top of the former (after throwing upward force upward lifted), arms then take the initiative to force the top of the outbreak of forced toss (rear thrown force backward after the above throw), shot hip, knee, Ankle and upper body fully extended, arms to the throwing direction, shot angle 40 ° or so. After throwing the ball is very stiff pedicle hip body after moderate