简述排球正面上手垫球上手发球的易犯错误和纠正方法
正确答案及解析
正确答案
解析
简述排球正面上手垫球上手发球的易犯错误和纠正方法
易犯错误:1.击球点偏前或偏后,纠正:找一个高度为主合适的悬挂物,反复练习向上抛球;或设以圆圈,使垂直上抛的球进入圈内。
2.转体过大。击固定球,徒手练习挥臂动作
3.没有推压带腕。对墙近距离发球,要求手包住球,使球前旋。
4.全身协调用力不好。上手抛羽毛球或实心球
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