Grade evaluation of the offensive and defensive ability of high level women's volleyball match in the 32th Tokyo Olympic Games
Taking the 12 women's volleyball teams of the 2020 Tokyo Olympic Games as the research object,using the research methods of literature,video analysis and mathematical statistics,this paper evaluates the offensive and defensive indicators of women's volleyball teams in various countries,analyzes the offensive and defensive ability of Chinese teams and world strong teams,and puts forward some sug-gestions.Results:on the offensive side,the WRSR value of the United States,Brazil and Serbia was high,which was in class B level,and the China team ranked at class C.On the defense side,the WRSR value of the United States,Brazil,Serbia and Russia was high,which was in class B level,and the China team ranked at class D.The Brazil team had the highest offensive-defensive WRSR value.The WRSR values of offensive,defense and offensive-defensive of each team were significantly correlated with the final ranking(all p＜0.01).All team of the Tokyo Olympic Games was divided into five grades.The United States,Brazil,Serbia and Russia was all in the first rank in terms of offensive and defensive.They represented the best strong women's volleyball team.The technical and tactical characteristics of high-level strong teams in the Tokyo Olympic Games were as follows:the attacking point of the smash was changeable and the route was diversified;the service was very aggressive;block awareness was high and location was accu-rate;toss was high successful rate and the pass form was flexible.
Tokyo Olympic Gameswomen's volleyballoffensive and defensive abilitynon integer rank sum ratio methodgrade evaluation
NETL
NSTL
万方数据
