6 To 7 Years Old Female Tennis Player In Our Country Selection Index System Construction And Empirical Research

Objective:to establish the selection index system of our country 6-7 years old female tennis player,in order to improve the selection of Chinese tennis athletes success rate,so that China's tennis competition ability can be improved,to improve our national sports participation boom to a certain extent.Research methods:(1)literature data method,extensive reference to tennis material selection and sports material selection as reference,understand tennis players' knowledge and knowledge about athletes selection index system.(2)Tel is illegal,interviews tennis experts,professors,scientific researchers and frontline coaches to determine the selection index of 6-7 year old female tennis players.Through the design of expert questionnaire,17 tennis experts,professors,researchers and first-line coaches were sent to experts.Experts were invited to evaluate the preliminary selection indicators,and the weight values of each index were determined by experts' suggestions.(3)test method: through the questionnaire survey expert opinion,carry on the field test to the target of or get,get the first hand data.Research results:(1)to determine the selection index system of our country 6-7 years old female tennis players,three indicators included height,arm length,lower extremity length,Ktole index,BMI,iliac width / shoulder width *100,hemoglobin,augmentation index,testosterone,PWC170,VO2 max relative weight relative weight value,grip strength,vertical jump,reaction time and anaerobic power,50 m run,muscle / body weight,left eye,right eye,left foot,right foot arch index index.(2)experts weigh the weight of each index,get the first level index,the weight of body shape,body function,physical quality and growth level to target layer is0.2924,0.2174,0.3485,0.1894,respectively.At the same time,according to the test value of the expert evaluation,the score table of the individual index of selection of6-7 year old female tennis players in China is obtained.(3)after three rounds of questionnaire statistics,it was found that in the three level indicators,the weight of bone age relative to the total goal is 1.5326,and the intelligence level is 1.3622 compared to the total goal.The weight of the 50 m runrelative to the total target is third at 1.2935.Conclusion:(1)the selection index system of 6-7 year old female tennis players in China has a certain scientific nature.(2)in selecting 6-7 years old female tennis players in China,we should consider four aspects: body shape,physical function,physical quality and growth level.(3)the type of growth and development should be considered in the selection of6-7 year old female tennis players.Advice:(1)when selecting material for female tennis players aged 6-7,they should choose players with greater development space for training Object.(2)body shape,body function,body quality and growth and development level should be taken into account when selecting materials for female tennis between 6and 7 years old.(3)when selecting female tennis players between the ages of 6 and 7,it is suggested to establish the athletes' archives for follow-up study.