【摘要】 背向原地掷铅球技术是一种有效提高专项成绩的训练技术 ,在该技术中进行橡皮条辅助练习及方向和角度的逆向练习 ,对成绩的提高起着非常显著的作用更多还原

【Abstract】 The techinque of putting the shot backwards at the original place is an effective way of practice to improve the grade.It plays a remarkable role of improving the marks to practise with the help of rubber bands and with inversive exercises in direction and angle.更多还原