A Comparative Analysis Of The Offensive And Defensive Effects Of Chinese And Foreign Auxiliary Players In The 2019 Women's Volleyball World Cup

With the continuous development of volleyball,volleyball is developing in the direction of height,speed,comprehensiveness and changeability.In the Volleyball Attack and defense technology,the fast attack based combined with strong attack and fast attack based on strong attack play a more and more important role in the current Volleyball Attack Tactics,and the volleyball secondary attack players,as their core,play a more and more important role in the competition.By using the methods of literature,expert interview,video observation,mathematical statistics and comparative analysis,this paper makes a comprehensive evaluation and Research on the non-technical indicators and offensive and Defensive Technical characteristics of the secondary attackers of the teams participating in the 2019 women's Volleyball World Cup,in order to find out the problems existing in the competition of the secondary attackers of the Chinese women's volleyball team,Comprehensively analyze the collected information.The results show that:1)The height,spike height and block height of the five Chinese secondary attack athletes are higher than the average level of the opponent's secondary attack athletes,but their weight index is significantly lower than that of the strong European and American teams.2)The number of Chinese women's volleyball team's secondary attack players sending jump floating ball is large,with strong attack and good quality,which is higher than the average level of their opponents,but the stability needs to be improved.3)The Chinese women's volleyball team continues to use the traditional fast attack tactics.On the basis of the traditional back fast and back flying,the Chinese women's volleyball team takes the short,flat and fast as the main body and the front fast cross cooperation,but the playing method is relatively single.In view of the comparison with other teams,it is recommended that:1)Focus on the reasonable combination of strength training and diet,strengthen nutrition,improve muscle fullness,and promote the explosive power of athletes in attack.At the same time,we should also pay attention to the development of endurance level to balance it with explosive power.2)To improve the quality and technical level of service,we must improve the technical methods of service,improve the accuracy of service,reduce the error rate,and dare to make innovations and breakthroughs.3)Improve the individual cover ability of secondary attack athletes and enhance the fast and changeable tactical attack.At the same time,we should also pay attention to the change practice of spiking line to prevent the opponent's fixed-point defense.4)Strengthen the training of collective blocking,so as to improve the blocking quality;Improve the skill and concealment of defense technology,stabilize defense,actively attack,and improve individual and collective blocking defense ability.