The author deemed that the main reasons of injury were the following: long time of exercise,nonproficiency skill, unconformity equipwent, insufficiency warming-up ,and so on.

• 分析认为练习时间过久、技术配合不正确或不熟练,场地器材(主要是器材)不适合、准备活动不充分等是造成损伤的主要原因。