运用文献资料法、录像观察法、数理统计法及三段指标评估法，对张继科使用新型塑料乒乓球前后的比赛进行了系统分析与研究。结果显示，使用新型塑料乒乓球后，张继科发抢段和接抢段使用率都有不同程度的下降，而相持段使用率大幅上升，表明使用新球后张继科比赛的重心已经向后转移，今后在相持段的争夺将会更加激烈；使用新球后，张继科发抢段得分率大幅下降，而接抢段和相持段得分率有所提高，说明张继科的发球抢攻得分优势已被明显削弱，而得分将主要集中在接抢段和相持段。%This paper uses the methods of literature , video observation , mathematical statistics and three index assessment method ,analyzes the competitions of Zhang Jike before and after the use of new plastic table tennis .The results showed that after using the new plastic table tennis ,the rates of advantage server and advantage receiver have different degrees of decline ,while the rate of stalemate increases significantly ,which indicates that the center of Zhang Jike turns backward ,the future competitions will become more intense in the period of stalemate . Besides , his scoring rate of advantage server fells sharply ,while his scoring rates of advantage receiver and stalemate improve ,which means that the superiority of his advantage server is weakened ,while the score will mainly focus on advantage receiver and stalemate .
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