在教学过程中经常发现 ,许多女生在学习了很长时间正面上手发球之后仍不能很好应用 ,比赛中经常出现发球不过网现象 ,甚至考试也不能顺利通过。究其原因 ,我们认为主要是由于协调性不好 ,腰腹部、肩部的力量差造成的 ,发球用力时 ,没能使全身协调力量 ,有限的力量没能发挥出有 During the teaching process, it is often found that many girls still can not apply well after they have studied for a long time. They often fail to serve in the game and can not even pass the examination. The reason, we think that is mainly due to poor coordination, waist and abdomen, shoulder strength caused by poor, serve hard, failed to make the body coordination force, the limited strength did not play out