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原地双手头上前掷实心球的远度是由力量、技术和协调性决定的,力量是基础、技术是关键、协调性不可忽视,三者缺一不可。力量是脚蹬地的力量与腰腹力量及上肢爆发力的合力。技术有出手速度,出手角度,出手高度。协调性是最后用力时上下肢的协调发力。实际教学中笔者观察学生的动作,分析学生掷不远的原因,摸索出“分步练习
In-situ hands on the front throw solid ball distance is determined by the strength, technology and coordination, power is the foundation, technology is the key, coordination can not be ignored, the three are indispensable. Strength is the strength of the pedal and waist strength and explosive force of the upper limb together. Technology shot speed, shot angle, shot height. Coordination is the coordination of the upper and lower limbs at the last exertion. In the actual teaching, the author observes the students’ movements, analyzes the reasons why the students are not far away, and explores ”step-by-step exercises