Research On The Technique And Tactics Application And Effect Of The World Excellent Women Volleyball Liberos

This study takes the technical and tactical application ability of 12 libero defense players from the top six teams of the 2019 Women’s Volleyball World Cup as the main object of study,and collects all the videos of the top six teams of the 2019 Women’s Volleyball World Cup for a total of 15 matches through the official website of the International Volleyball Association.In this study,the methods of literature review,expert interview,video analysis,mathematical statistics and logical analysis are used to compare the techniques and tactics of Chinese women’s volleyball libero players and the world’s top six libero players.The following conclusions are drawn:(1)In the first-attack tactical system,the proportion of libero players receiving serve in the world’s top six women’s volleyball teams is lower than that of other players in our national team,and the times of Chinese libero players receiving serve in the world’s top six women’s volleyball teams is the least.Comparatively speaking,Chinese women’s volleyball libero players have advantages in receiving serve,but their technical level is not stable enough and their ability to take the initiative to receive the ball is poor.(2)In the defense and counterattack tactical system,the proportion of libero players in the world top six women’s volleyball teams participating in defense is less than that of other players in Chinese national team.In the application effect,it can be seen from the error rate that the defensive quality of Chinese women’s volleyball libero players is higher than that of other top teams.(3)In the tactical system of conservative attack,the libero player protection ability of the world top six women’s volleyball team is stronger than other players.In terms of the application effect,libero players in Korean women’s volleyball team has the highest rate of good conservative attack,and their protection ability is stronger than that of other strong teams.In contrast,there is a certain gap between the libero players of Chinese women’s volleyball team and other world’s strong teams in judgment and reaction ability.(4)In the tactical system of push attack,the world’s top six teams all take libero players as the core in receiving the handling balls.The libero players of the world’s top six women’s volleyball teams are better than other players in predicting the chance balls.In terms of application effect,there is basically no difference between excellent libero players in the world’s top six women’s volleyball.(5)In the tactical system of adjusting the ball,the proportion of libero players in the world top six women’s volleyball teams participating in the second pass and underhand adjusting the ball is relatively low,and the way of underhand adjusting is used more.In terms of the application effect,libero players of Brazilian women’s volleyball team have the highest rate of good adjusting ball,and the tactical awareness of adjustment is obviously better than that of libero players in other top teams.Comparatively,drop point of adjustment by Chinese women’s volleyball team libero players is relatively single.