Comparative Analysis On The Technology Application Effect Of The Top Four National Team Libero In The Women's Volleyball Championship 2018

The Volleyball World Championship,the Olympic Games volleyball match and the World Cup volleyball match are called the world volleyball three big competitions.The World Volleyball Championship is the highest level single event of the volleyball sport in the world.Therefore,this paper uses the methods of Literature,expert interviews,mathematical statistics,video observation and comparative analysis,and other research methods,this paper makes a comparative analysis on the technical application effect of "free men" in the top four teams of the2018 Women Volleyball World Championship.The purpose of this paper is to explore the advantages and disadvantages of the technology application of the four libero and disadvantage of Chinese women's volleyball Libero Wang Mengjie in the application of technology.Draw the following conclusions:1.In terms of the basic physical conditions of the Libero in the final four of the Wmen's Volleyball World Championships in 2018,the Libero in the final four have a large age span,showing a trend of polarization.Wang mengjie,a free agent in the Chinese women's volleyball team,is young but close to other free athletes in terms of height,weight and ktolet index.2.In terms of the application effect of the technique of receiving service by Libero in the final four: wang mengjie's strengths lie in the receiving service,her flexible steps,accurate prediction and tacit cooperation with her teammates,which are the main reasons for her high rate of receiving service.However,the return of the big jump serve still has some problems such as the speed and strength of the service of the European and American strong teams.But the overall return of service or ranked among the top four Libero,to ensure the Chinese team's attack.3.In the final four Libero defense dunking,drop ball technology application effect: Italy's DE jiro outstanding performance,due to his own quick reaction ability,stable defensive skills and accurate ball prediction,plus physical conditions are superior,so the ball rate is the highest.Libero agents from other European teams are not far behind in the ball starting rate.In this respect,Wang mengjie,a Libero of the Chinese team,has a lower position rate and a higher error rate.She is not adapted to the spiking of the European and American teams,so that he has anobvious gap with the other three Libero.4.In terms of the application effect of the ball catching and blocking technique by the Libero in the final four teams: the difference between the Libero in the final four teams is small.Reflects in the modern volleyball,the attack and many people block the ball to catch the ball back more difficult,Libero in the ball back block the ball up rate,maintain in the close range.5.In terms of the application effect of Libero receiving non-offensive ball in the final four:Wang mengjie received the most balls and reached the position at a high rate,indicating that Wang mengjie had excellent footwork and accurate judgment.No-offense is less difficult for Libero to catch.Therefore,in the final four of the free people,there is no Libero receive no ball errors,which is in line with the technical characteristics of the world's top Libero.6.In the last four Libero,set up organizations offensive technology effect: Italy Libero DE Gina is very prominent,distribution of the total to 130,was twice as many other Libero,and can effective organization fast-break tactics,DE zina ROM.There is no doubt become the points of the second distribution is the women's volleyball team in Italy.Although popovich and knipp did not distribute the ball as much as degenarodo,the two Libero used the ball consistently,reached the position at a high rate,made no mistakes,and were equally good at Libero offense.Wang mengjie in the distribution of the ball,can be too much to attack the offensive hand attack is not smooth,and the distribution point is too single,there is a distribution of the ball error.Wang mengjie in distribution of the ball and the final four of the other Libero have a big gap,need to be targeted to improve the training.