【摘要】 论述了经典技术效益、平衡点及其计算公式,并进一步提出,应根据比赛行为的属性(进攻、防守、控制和相持等),对技术效益公式中的平衡点进行调整的观点,构建了0.4~0.65之间不同平衡点的技术效益公式。在此基础上,以乒乓球项目为例,以比赛行为(一三拍、二四拍和四拍以后)的平均得分率作为选取不同平衡点技术效益计算公式的依据,分别计算它们各自的技术效益值。结果发现,采用不同平衡点技术效益所计算的各项比赛行为的技术效益值在P70,P50和P30都十分接近。这样可以简化技术效益评估模型与各项比赛行为之间的比较。同时,通过个案和综合分析案例,表明技术效益评估在训练、比赛实践中应用的可行性。更多还原

【Abstract】 This paper discusses classic technique effectiveness,balance point and formula,and further proposes that the balance points of the technique effectiveness formula should be adjusted according to the attributes of athletes’ game actions(offense,defense,control and stalemate,etc.)and constructs technique effectiveness formulas for the different balancing points between 0.4and 0.65.On this basis,taking table tennis as example,this paper chooses the average scoring rate of each game action(the first/third stroke,second/fourth stroke and after the fourth stroke)of elite players as the foundation for determining the technique effectiveness evaluation formula and calculates the value of their respective technical effectiveness.The findings show that the technique effectiveness values of different game actions are very close at P70,P50 and P30.In this way,the evaluation model and the comparison between various kinds of game action are simplified.At the same time,the individual and comprehensive case analysis shows that it is feasible to apply the technique effectiveness evaluation to training and competition practice.更多还原