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前抛实心球是国家体质健康标准的测试项目,也是体育高考生测试项目之一,实心球的出手速度、高度、角度三个因素直接决定成绩的好坏,最关键的因素是出手速度。出手速度的原动力是由下肢的蹬撑形成的合力到达腰部,再通过腰部传递到肩部,臂部,腕部,形成鞭打姿势,将实心球从头顶上方抛出。根据动作发展原理,下肢发展优先于上肢的规律,学生对动作技术的掌握,往往上肢技术不及下肢技术掌握得快,在上肢的投掷过程中,往往会出现一些比较明显的错误,使得动作速度减慢。因此,实心球的教学就必须有针对性,侧重在上肢进
Before throw solid heart ball is a national standard test of physical fitness, sports test candidates is one of the test items, the solid ball shot speed, height, angle of three factors directly determine the performance is good or bad, the most crucial factor is shot speed. The driving force of the speed of the hand is the force formed by the pedal support of the lower limbs reaching the waist, and then transmitted to the shoulders, arms and wrists through the waist to form a whipping gesture, and the solid ball is thrown from above the head. According to the principle of action development, the development of lower extremities takes precedence over the law of the upper extremities. Students’ mastery of the technique of motion often suffers from the fact that upper extremity techniques are inferior to lower extremity techniques. Some obvious errors often occur during the throwing process of the upper extremities, SLOW. Therefore, the teaching of solid ball must be targeted, focusing on the upper limb into