Research On The Application Efficiency Of Offensive And Defensive Technology Of Chinese Women's Volleyball Team And Its Main Opponents In The Tokyo Olympic Cycle

The Chinese women's volleyball team shined in the three major events of the Tokyo Olympics cycle.The 2017 Women's Volleyball Championship won a round ahead of time.The 2018 Women's Volleyball World Championships China won the third place.The 2019 Women's Volleyball World Cup China Women's Volleyball Team won 11 champion.Now that the Tokyo Olympics is approaching,we should be aware of the problems in the competitive status of the Chinese women's volleyball team while we are cheering.In order to better serve the team building of the Chinese women's volleyball team,we must sort out the offense and defense.The winning factors in technology provide theoretical basis for the future training and competition of the Chinese women's volleyball team.Through the comparison of non-technical indicators,sort out the advantages and disadvantages between Chinese women's lineups and the world team.At the same time,the Chinese women's volleyball team and its opponents' offensive and defensive technology application efficiency is analyzed to find out the winning factors in the use of various technologies in the winning and losing game.The WRSR method is used to evaluate the offensive and defensive technology efficiency of the three events to obtain a more clear and intuitive offensive and defensive ability level.Ranking.And establish a logistic regression analysis model to predict the team's probability of victory.Using literature data method,video observation method,mathematical statistics method,and logic analysis method,the statistics and comparative analysis of the offensive and defensive technical efficiency of the Chinese Olympic team and opponents in the Tokyo Olympics cycle were classified and compared,and the following conclusions were reached:(1)By analyzing the non-technical factors of the Chinese team and their main opponents who participated in the three world games in the Tokyo Olympics cycle,it was found that the Chinese women's lineups and foreign players showed significant differences in height,spike height and block height.Difference,the Chinese women's volleyball team has certain advantages in height.By comparing the three Chinese women's volleyball teams themselves,it was found that there were no significant differences in the team players' various indicators.(2)Comparing the efficiency of the Chinese women's volleyball team's offensive and defensive techniques in the three competitions,it was found that the Chinese women's volleyball team has a clear advantage in the efficiency value of smash scoring and defensive pilling.In terms of technology utilization efficiency,the performance of the Chinese women's volleyball team is not stable.(3)Through the analysis of the offensive and defensive technology application efficiency of the Chinese women's volleyball team in the three games of the Tokyo Olympics cycle,it is found that the technical efficiency of each game is generally better than that in serving,smashing,blocking and defensive technologies.Lost game,but the technical efficiency index of the lost game is higher than the winning game.In the comparison of the winning and losing games of the three competitions,the Chinese Women's Volleyball Team in the 2019 World Cup has the best offensive anddefensive technical efficiency,indicating that a team with both offense and defense can get better results in future games.(4)Using the non-integrated rank sum ratio method(WRSR)to comprehensively evaluate the offensive and defensive technical efficiency of the Chinese women's volleyball team and opponents,the teams of different competitions can be divided as follows.The 2017 women's volleyball championship cup China ranks first Brazil,Japan are in the second gear,and Russia and the United States are in the third gear.In the 2018 Women's Volleyball World Championships,the first Italian team thrived.The comprehensive capabilities of China,the United States and the Netherlands ranked among the second teams.Turkey,Russia,Thailand,and Bulgaria were in the third gear.The United States,Brazil,Japan,and South Korea's women's volleyball team are in the second gear,while Russia,Dominica,Serbia,the Netherlands and Argentina are in the third gear.(5)According to the performance of the Chinese women's volleyball team ' s offensive and defensive technical efficiency indicators in the three major games of the Tokyo Olympics cycle,a total of 4 offensive and defensive technology efficiency indicators were used to establish a logistic regression model.The fitting degree is good and can be very good.Prediction of team victory or defeat.And it is concluded that there are 4 items of scoring efficiency,scoring efficiency,effective blocking efficiency,and receiving efficiency in place that will have a significant positive impact on the outcome,but the efficiency of defensive kicking will not affect the outcome.Bureau has an impact relationship.