Construction And Application Of "Three-Dimensional Evaluation Model" In Table Tennis Technique And Tactics

Based on the classic“three phase evaluation theory”,and according to the results of nearly a decade of researches on technique and tactics analysis in table tennis,this study re-sorted and constructed the “three-dimensional evaluation model”of technique and tactics in table tennis. In this study, 151 matches were selected from men’s top 20 and women’s top 21 players(based on the world ranking in March 2014). Using videotape observation, mathematical modeling method and mathematical statistics, among others, this study established evaluation criteria for men’s and women’s singles game, analyzed the characteristics of technique and tactics of male and female athletes,Chinese and foreign elite male athletes,Chinese and foreign elite female athletes. It also quantitative summarized the characteristics of the relationship between the indices of the “three-dimensional evaluation model”, discussed the applicable situation of three-dimensional evaluation criteria after the enforcement of new plastic ball. Main conclusions are as follows:(1) Put forward the method that takes scores in the fifth stroke into different phases which could well solved the problem that the data of one player didn’t correspond with the other in the traditional“three phase evaluation theory”, and constructed “three-dimensional evaluation model” of technique and tactics in table tennis, that analysis the technique and tactics from three dimensions: the technology usage dimension, the two side’s confrontation dimension and the overall strength dimension. This model could reflect the concrete application situation of table tennis athletes during the process of the game, the situation of two sides against, and the situation of the overall strength distribution for themself. It could also summary the technique and tactics characteristics of athletes comprehensively and detailedly, it’s conducive to timely adjust and the pre-match preparation.(2)Through explore the relationship between four indexes of the athletes by the BP neural network and multiple regression model, we found that: 1).The importance of the tactical factors are different for the male and female player. The important order of the tactical factors in men’s singles is the attack after serve, the rally I, the attack after receive, the rally II. The order in women’s singles is the attack after serve, the attack after receive, the rally II, the rally I; 2).There’s a compensation effect between table tennis technical and tactical abilities. In a match featuring different technical and tactical levels, a total score of over 13 points means win and below 13 points means failure in men’s singles. A total score of over 13 points means win and below 12 points means failure in women’s singles; 3). There’s interactive effect between table tennis tactical factors, this effect is different in each factors and between men and women. The interaction effect in women’s singles is higher than in men’s singles, and mainly reflected in the attack after serve phase, the rally I phase and the rally II phase.(3)The overall application study found that: 1). The strength difference and scoring ability of men and women players in their respective match with opponents aren’t very different, the difference is mainly in the distribution of the technique and tactics; 2).The main strength difference between Chinese and foreign elite men athletes is in the rally phase, the rally I phase is same to the rally II phase, the next is the the attack after receive phase. There’s no significant difference in the usage rate, the main difference is in the scoring ability, Chinese men athletes is superior to foreigner except in the attack after serve phase; 3).The main strength difference between Chinese and foreign elite women athletes is in the rally phase, the difference in the rally II phase is bigger than the rally I phase, the next is the attack after receive phase and the attack after serve phase. The scoring ability of Chinese women athletes is superior to foreigner in all the phases, the usage rate of the attack after serve phase and the attack after receive phase is lower than foreigner while the usage rate of the rally phase and the rally II phase is higher than foreigner.(4)The influence of the new rules study found that: There’s no statistically significant difference in the technical and tactical indexes after plastic ball was used. The new rules hasn’t caused great impact on the overall technical and tactical of the elite athletes, but relatively the impact on the receive round is higher than the serve round, the scoring rate of the receive phase has improved, the usage rate of the attack after serve and receive phase relative to the rally phase has increased.