A Study On The Characteristics Of Points Scored And Conceded By Chinese Women’s Volleyball Team In World Championship Rounds 2018-2021

After winning the Rio Olympics,Chinese women’s volleyball team performed well in the Tokyo Olympic cycle and once became the favorite to win the Tokyo Olympics,but the final result was not satisfactory,with three losses and two wins in the group stage without reaching the crossover.This study starts from the rounds,takes the technical and tactical performance of Chinese women’s volleyball team in the world competition during 2018-2021 as the research object,adopts a combination of qualitative and quantitative approach,first combines the basic laws of volleyball and the characteristics of round confrontation,constructs the theoretical model of the round confrontation process of volleyball matches,then uses the collected Chinese women’s volleyball match round scores and technical and tactical data,uses SPSS22.0 and EXCEL software,scientifically analyze the stage competitive performance of Chinese women’s volleyball team,summarize the trend of technical and tactical ability of Chinese women’s volleyball team and the characteristics of match rounds,and provide reference basis for Chinese women’s volleyball team to prepare for the Paris Olympics.The conclusions drawn from the study are as follows:1 The Chinese women’s volleyball team’s round confrontation during the 2018-2021 World Championship was distributed between rounds 0-19,with rounds and their frequencies showing an inverted U-shaped curve relationship,peaking at rounds 2 and 3.During this period,the scoring ability of Chinese women’s volleyball receiving rounds was better than serving rounds,but the scoring ability of serving rounds had a greater significant impact on set winning than receiving rounds,and the active scoring ability of serving rounds and the first attack performance of receiving rounds were the key to match winning,with the key rounds being the 1st,3rd and 5th rounds of serving and the 2nd round of receiving.2 After the regression model calculation and screening,the key technical and tactical factors affecting the game for Chinese women’s volleyball in the 2018 World Championships were power attack points lost,receiving and dunking points lost,power attack points and serving points;in the 2019 World Cup were receiving and serving points lost and power attack points lost;in the 2020 Olympics were blocking points,power attack points and receiving and serving points lost;and in the 2018-2021 combined were receiving and dunking points lost,power attack points lost,power attack points,three-dimensional attack points,receiving and serving points lost,serving points and blocking points.3 Chinese women’s volleyball team in 2018-2021 during the world competition,2018 performance is medium,the outstanding advantage is blocking,disadvantage is the dunking and serving offensive to be strengthened;2019 World Cup performance is the best,mainly due to the excellent performance of the offensive end,the active scoring ability is outstanding;2020 Olympic Games performance is the worst and a large gap with the first two,mainly due to the strong attack and blocking ability decline.Comprehensive above can be seen that blocking is the advantage of Chinese women’s volleyball team,there is the biggest problem is over-reliance on a single strong attack point.