Construction Of Physical Fitness Index Model Of U7-8 Children Football Players Research

Football has a bright future in China.In 2009,with the attention of the society and the country,the cause of children's football in China has achieved long-term development.In particular,the ministry of education of China has issued relevant policies on campus football.Although China's football prospects seem to be very good and the popularity of campus football is very high,China has not yet formed a systematic selection system for elite talents.For a long time,the physical fitness training evaluation of u7-8 juvenile football players is mostly evaluated by the subjective method of coaches and personal experience judgment,and it is difficult to make a comprehensive and considerable evaluation on the physical fitness of juvenile football players.As the reserve army of football,if the football players at this age cannot be comprehensively,scientifically and objectively evaluated,it will bring some difficulties to the selection and training of players,and they may miss the best training mode in the development period.Therefore,a scientific and rigorous physical fitness evaluation system is a key step for the accurate diagnosis of the comprehensive physical fitness status of u7-8 football players and the scientific development of training programs for coaches.According to the specific requirements of this study,through expert review were used respectively to generate the questionnaire survey,through the hunan normal university library as well as the online data analysis of literature,mathematical statistics SPSS17.0 software,the football player's physical ability index testing and methods of expert interview,field screening and identified the U7-8 footballer comprehensive evaluation index system of three grade 1,8 measures of level 2,12 measures of level 3,and constructs the comprehensive evaluation system of physical fitness evaluation to provide reference for juvenile football athletes.The main conclusions are as follows:(1)Evaluation index,index weight and scoring standard are the three dimensions of the comprehensive evaluation system of football players' physical fitness,which are the key elements of constructing the evaluation system of football players' physical fitness.There are four steps to construct the football player physical fitness evaluation system:determining the evaluation target,determining the evaluation index,determining the index weight and constructing the evaluation standard.(2)The physical fitness of children's football players is based on the core elements of football technology and sports quality,and morphology is the guarantee condition of physical fitness.On the basis of the three elements,the scientific evaluation of children's football players' physical comprehensive ability is conducted,and a scientific evaluation system is constructed.(3)Literature research,expert interviews and mathematical statisticswere used to select and determine three grade-1 indicators,namely morphological indicators,sports quality indicators and football technical indicators.Eight grade 2 indicators are height,enrichment,speed,strength,agility,flexibility,endurance and football technical ability.123-level indicators: height,weight,body fat percentage,10 meters turn and run,15 meters around the bar,30 meters acceleration run,plank support,standing long jump,5 meters and 3 directions,sitting body forward bend,800 meters,football technology combination test(pass,control,movement,shooting).(4)The weight of grade 1 index was determined by expert interview method,among which the weight of morphological index was 0.1,the weight of sports quality index was 0.65,and the weight of football special technical index was 0.25.By means of expert interview and scoring statistics,the weights of physical fitness evaluation indexes at level 3 are determined.(5)After determining the indicators and weights,the indicators are assigned points,and then grade intervals are divided to establish the physical fitness level standards of athletes.Above 80 points is excellent,70-80 is good,45-70 is medium,35-45 is inferior,and below 35 is poor.(6)In the questionnaire survey of 100 u7-8 soccer players,the majority of young soccer players are in the middle level,accounting for76%.Excellent is only 1%;The lower grades were 8 per cent;Poorgrades accounted for 3%;Good accounts for 12%.