Research Of The Talent Identification Method Of Table Tennis Players Aged 9?14

Purpose: To find out the problems existing in the current system of training and talent identification of table tennis in China,and improve them accordingly.And develop a more perfect and scientific talent identification model to provide the theoretical basis for table tennis reserve identification.Methods: Under the guidance of experts,combined with relevant literature and theoretical basis,the interview method was used to understand the current system of training and talent identification of table tennis in China;The Delphi method was used to screen the index system of talent identification for table tennis;The analytic hierarchy process,test method and percentile method were used to determine the weight and evaluation criteria of the index system of talent identification;The practice research and theory were Integrated to build the periodic evaluation model for table tennis player aged 9 to 14.Results:(1)The imbalanced growth and relative age effect were the main problems in the selection of young athletes.Through the evaluation and prediction of competitive ability in multiple stages,the imbalance of growth and development and the adverse effects of the relative age effect could be avoided effectively.(2)According to the interview results of coaches:at present,the three training levels of provincial professional team,national second team and national first team form a positive flow of talents through regular competition exchanges,which could better realize the purpose of selecting excellent talents.However,the method of competition selection was not fully applicable to table tennis players aged 9 to 14 who flowed from provincial and municipal training teams to provincial and municipal professional teams.It was easy to have a negative psychological impact on them,which leaded to the loss of elite athletes.(3)In view of the problems in this stageand the characteristics of the players,the evaluation index system of the competitive ability of table tennis players aged from 9 to 14 was established through five rounds of expert questionnaires.It included 2 indicators of body shape,6 indicators of physical fitness,2 indicators of technical ability,2 indicators of tactical ability,2indicators of psychological ability and 2 indicators of knowledge level from the perspective of quantitative testing.From the perspective of qualitative evaluation,there were 7 indicators of technical ability,5 indicators of tactical ability,6 indicators of psychological ability and 3 indicators of sports intelligence.(4)Based on the measured data of 801 school-age players,it was found that under the influence of natural growth and long-term training,table tennis players aged from 9 to 14 years old had different competitive abilities among groups aged from 9 to 10 years old,from 11 to 12 years old,and from 13 to 14 years old.According to the bone age segmentation of the development of the competitive ability of the evaluation criteria have passed the system of the test and the system of the test.(5)Combined with the theoretical design of the stage evaluation material selection model,the developed competitive ability evaluation index system and evaluation criteria were optimized to a certain extent,and the stage evaluation material selection model of table tennis players aged from 9 to 14 years old was constructed,which was reflected in the cycle of "evaluation-prediction-re-evaluation-re-prediction".Conclusions:(1)From the current table tennis talent training system and form of talent selection,the flow of talents in the three training levels of provincial and municipal professional team,national second team and national first team was reasonable,and the selection method of athletes was in line with the actual needs and effective.The problem mainly existed in the process from provincial and municipal training team to provincial and municipal professional team.(2)The stage evaluation model could improve the success rate of athletes oflower age group.(3)Under the guidance of Delphi method,the evaluation index system of competitive ability of table tennis players aged from 9 to 14 was established.The test method was basically derived from the daily training content of table tennis players of this age group.Under the complementary of quantitative evaluation and qualitative evaluation,it is able to carry out comprehensive and comprehensive evaluation on the tested person,and the familiar and conventional test method greatly improves the feasibility of evaluation.(4)According to the bone ages of 9?10 years old,11?12 years old and 13?14years old,the competitive ability evaluation criteria and stage evaluation material selection model of different gender athletes were developed.(5)The stage evaluation material selection model mainly reflects the prediction results of three types,namely,stable growth type,early shaping of competitive ability,and late shaping of competitive ability,etc.Combined with the actual evaluation score range of athletes,it can better realize the talent selection.(6)The construction of the data management platform of the material selection model for table tennis players aged from 9 to 14 can improve the application efficiency of the material selection model in practical material selection.Intelligent management and visual presentation of large quantities of data provide great convenience for material selection.