The Construction Of The Evaluation System Of The Technical And Tactical Training Effects Of Table Tennis Reserve Talents In Sichuan Province

By using the methods of literature,expert interviews,questionnaires and mathematical statistics,this paper analyzed the characteristics of table tennis reserve talents in Sichuan Province,systematically analyzed the characteristics of table tennis and the use of techniques and tactics,and laid a good theoretical foundation for the construction of a scientific evaluation system for the training effect of table tennis techniques and tactics.At the same time,expert interviews,index optimization and other methods are used to establish the index system.K-S test and standard percentage method are used to analyze the collected data systematically.Finally,the evaluation index system of technical and tactical training effect of Sichuan table tennis reserve talents is constructed.The main conclusions are as follows:1.Construct the evaluation index system of technical training,which includes three first-level indicators(attack,arc and combination of techniques).The second-level indicators include: backhand bounce,forehand mid-far billiard attack,forehand downspin,forehand forward arc,backhand forward arc,forehand pull arc,forehand three-point continuous pull,left push-right attack,push-block sidebody attack and so on.2.In the evaluation system of tactical training indicators,there are four first-level indicators(serving attack,receiving attack,pulling attack and rubbing attack).The second-level indicators include: forehand attack of short serve near net,backhand attack of short serve near net,pulling attack after serving,backhand pulling half,forehand pulling half,in-table attack,pulling short smash,pulling one corner smash,rubbing long.The ball combines rubbing short ball to attack,rubbing long ball to attack and so on.3.In the evaluation system of technical training,the weights of the first-level indicators are: B1(attack class)0.156,B2(arc class)0.224,B3(technical combination class)0.620.The weights of the secondary indicators were: C1(backhand bounce)0.110,C2(forehand mid-far table attack)0.581,C3(forehand down spin)0.309,C4(forehand forward arc)0.623,C5(backhand forward arc)0.137,C6(forehand pull arc)O.239,C7(forehand three-point continuous pull)O.539,C8(left push right attack)0.164,C9(push-sidestroke)0.297.4.In the evaluation system of tactical training,the weights of the first-level indicators are Y1(Serving and Attacking)0.581,Y2(Receiving and Attacking)0.3,Y3(Pulling and Attacking)0.047 and Y4(Rubbing and Attacking)0.072,respectively.The weights of the two indicators were as follows: Z1(near net short-ball forehand attack)0.681,Z2(close net short-ball backhand attack)0.216,Z3(serve hemisphere play ball)0.216,Z3(serve hemisphere play ball pull attack after the opponent receives serve)0.103,Z4(forehand pull half play ball)0.623,Z5(backhand pull serve)0.239,Z6(in-table attack)O.137,Z7(pull long suspension short smash)O.750,Z8(pull angle smash angle,2500.2500.2509,Z8(Z9)0.2500.2509,Z9(rubbing long ball),rubbing long ball(Z9(combined rubbing Short ball attack)0.333,Z10(long ball after rubbing)0.667.5.Grade evaluation criteria for technical and tactical training effects of table tennis reserve talents in Sichuan Province are constructed respectively.The evaluation criteria for technical training effects are poor(below 28.6 points),passing(28.6-50.8 points),medium(50.9-72.8 points),good(72.9-89.3 points),excellent(above 89.4 points),and comprehensive evaluation criteria for tactical training effects are poor(below 24.52points)and passing(24.52-46.7 points).Medium(46.8-74.08 points),good(74.08-90.3points),excellent(90.4 points or more).By comparing the training effect of athletes and the scores of various indicators,this paper points out the shortcomings in the training,and the coaches adjust the training plan to improve the training quality of athletes and achieve better results.