| China’s men’s volleyball team won the world men’s volleyball championship in Chicago,the United States,on July 15.Russia defeated the host country the United States to defend their men’s volleyball title,3-1.In the face of the rapid development of men’s volleyball,the Chinese men’s volleyball is extremely unadaptable,fast,powerful,three-dimensional and simple,which has become the main direction of the development of men’s volleyball.On the basis of previous studies,this study established the evaluation index system model of men’s volleyball attacking and defending techniques in each special position by using the methods of literature review and expert questionnaire,and based on the established index system model,collected the data of 130 matches of men’s volleyball national league in 2019.According to the obtained data,Excel,TOPSIS and RSR were used to process and analyze the data,in order to find out the problems existing in the Chinese men’s volleyball competition and provide a reliable reference for the future training of Chinese men’s volleyball.Through the study of this paper,a conclusion is drawn:First,this study compiled the men’s volleyball each designed an evaluation index system of offensive and defensive technology expert questionnaire,according to the results of the two rounds of expert questionnaire established men’s volleyball the technical model of evaluation index system designed an offensive and defensive ability,including five designed a volleyball court,each designed a primary index,a total of nine only defense technology(free),each designed a three-level index,a total of126.Second,is to establish a index system model on the basis of the statistics data from 2019 men’s volleyball national league teams,and using the method of TOPSIS and RSR two analysis of the data was analyzed,and the results are as follows:(1)according to the result of the step,the Chinese men’s volleyball in third gear,a main position which attack technology was ranked ninth,defense technology was ranked 16th,the largest defense technology’s influence on the whole step.(2)the R_ivalue of attack of the Chinese men’s volleyball side attack is 0.3991,ranked in the 9th place,and the R_ivalue of defense is only 0.2535,ranked in the 15th place.The estimated value of RSR is 0.345.The overall attack and defense technical strength is ranked in the second position,and there is still a certain gap from the first position.,the Chinese men’s volleyball team’s overall attack ball is soft,easy to be emotional interference,need to improve their strength.(3)the Chinese men’s volleyball setter"attack of the R_ivalue of0.3991,was ranked fifth,defensive R_ivalue of 0.2623,ranked 16th,RSR estimate is 0.357,the overall defense technical strength was ranked the second leg,defense is the major problems affecting the Chinese men’s volleyball setter reinforce the overall strength,the Chinese men’s volleyball setter"if you want to have a larger increase,must vigorously promotes the defensive problems,improve the quality and efficiency of the defense.(4)the R_ivalue of the Chinese men’s volleyball setter is 0.6290,ranked 6th,and the R_ivalue of the defense is 0.2611,ranked 16th,and the estimated value of RSR is 0.398.The overall technical strength of the offense and defense ranks the second.The attack of the Chinese men’s volleyball setter is not bad,that is,the attack and serve of the second ball are not bad,and the main influencing factor is the defense of the setter.(5)the RSR value of the Chinese men’s volleyball free men is 0.3355,ranking in the third gear,which is far from the first gear of the strong teams. |
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