| Objectives: Master the quantitative characteristics of the technical indicators in China's youth men's volleyball competition and the law of the load of the players in different positions to complete the technical movements,so as to clarify two different understandings and viewpoints,and provide theoretical support for scientific understanding of the training principle of "Three requirements and Heavy Load".Methods: Using the method of documentary,video analysis,mathematical statistics,etc.,to participate in the 13 th national games final 8 U21 men's volleyball team(Beijing,liberation army,Guangdong,Shandong,Sichuan,Zhejiang,Henan,Tianjin)in accordance with the game on the technology of load,and will result in accordance with the 3-0,3-1 and 3-2 to distinguish between the three conditions of statistical analysis.Result: In the case of 5 games,the amount of service load: main attack,receiving,auxiliary attack,the average number of service times per game is 19,18,15.19 and 13.13 respectively.However,in the 3:0 game,the receiving load was higher than the main attack,and in the 3:1 game,the receiving load was higher than the main attack.In terms of return load: the average of free man and main attack return is 30.38 times and 25.38 times.However,in the 3-0 and 3-1 games,the number of the main attack and the service is more than that of the free man.Passing load: the average number of passes per game is 102,including 72.13 jump passes and 29.5 standing passes.The average adjusted pass times of other offensive players and free agents were 3.44,3.63,1,5.38 respectively.Spike load: the average number of spikes per game for the players of receiving,main attack,auxiliary attack and setter is 31,27.69,13.25 and 2.5.In terms of block load,the average number of blocks for the main offense,the receiving offense,the auxiliary offense and the setting offense were 25.06,34,49.19 and 28.63 respectively.But with 3:0,3:1 match times when receive,the main attack,the set of three times similar characteristics are different.Defensive load: the average defense times of free agent per game reached 18.75 times,while the main attack,receiving,auxiliary attack and setter only reached 10.75 times,8 times,2.69 times and 8.25 times.In terms of total touch load,the total number of touches per game of setter,main offense,receiver,side offense and free agent were 111.31,95.75,80.31,155.4 and 55.5 respectively.In terms of total load of vertical jump,the average total number of vertical jump in the field of the second pass,the auxiliary attack,the contact and the main attack is 114,106.88,83 and 71.75 respectively.Conclusion: Considering from the combination of sports skill and physical theory,the completion of each technology,are involved in physical fitness of participation at the same time,in addition,each technology of game is done in high strength against the situation,its intensity must be greater than the exercise intensity in training,as a result,the position corresponding to the total number of the ball and total number of vertical jump can be used as a bottom line technology in training load reference standard.In terms of the characteristics of technical load,the three links of serving,blocking and defending involve the participation of all players on the court(except free service personnel),which are important factors to ensure the overall technical performance of a team.The total number of touches presents the law characteristics of free players in > main attack > connected to > secondary attack >,and the total longitudinal jump presents the law characteristics of > secondary attack > connected to > main attack.In daily training,there are three kinds of training intensity arrangements,namely "big,medium and small".The coach can arrange the training amount and training content according to the training stage and task,physical quality and technical level,and referring to the competition data of the fifth,fourth and third games. |
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