Research On The Rubbing And Releasing Technology And Application Characteristics Of The World's Best Badminton Men's Singles Players

Rubbing and placing is the collective name of rubbing ball technology and placing net technology.These two techniques play an important role in the high-level badminton men's singles competition and play an important role in the technical and tactical system of badminton.The technique of rubbing and releasing the net is an important means for athletes to strengthen the control of the net and transition the front field.The main purpose is to gain the competitive advantage in front of the net and create opportunities for us to attack in the back field.In the face of the coming ball,players can choose to rub the ball or put the net in front of the net.Both of them are decision-making options at the same time,so the comparison,analysis and research of the two at the same time will help to discover the deep-seated law of pre-network technology.kento momota is the most powerful competitor to prepare for the 2020 Olympic Games in China.He drew kento momota's decision tree of third shots,fifth shots,second shots and fourth shots after rubbing and putting nets.It can help our athletes to find out the advantages and disadvantages of kento momota in front of the net,thus providing practical and instructive technical and tactical information for our athletes.At present,there are few studies on rubbing ball and releasing net technology,insufficient quantitative analysis and insufficient depth of research.Therefore,this paper will quantitatively analyze the technology of rubbing and laying out the net from the height of passing the net,the distance from the hitting point to the net and the hitting height,in order to reveal its technical characteristics.Then,according to the research needs,the statistics and analysis of the gain and loss scores of different rackets after rubbing the ball and putting the net are divided into four types: direct score,direct score,indirect score and indirect score.Finally,the decision tree tool is used to further visualize the technology path,and the types and times of the technology path are obtained.This paper collects 21206 rackets data of Chen Long,Shi Yuqi,Viktor Axelsen and kento momota athletes,including 1050 rackets of rubbing and 2953 rackets of netting.The results show that:(1)The height of rubbing the ball through the net is the smallest when Chen Long is against Shi Yuqi,and the height of releasing the net is the largest when Viktor Axelsen is against Shi Yuqi.Compared with releasing the net,the height of rubbing the ball through the net is obviously different.The distance from the hitting point of the net to the net is concentrated at 2.22-2.56 meters,which provides data support for the training and competition of Chinese athletes.The average hitting height of Chen Long's rubbing and netting is lower than that of other players.It is suggested that Chen Long should increase the moving speed and grab the high-click ball.(2)kento momota scored more than the percentage of lost points,while Chen Long,Shi Yuqi and Viktor Axelsen scored less than the percentage of lost points.It shows that kento momota's scoring ability is better than other athletes as a whole,and is an important competitor in China.The indirect scores of players after rubbing the ball account for more than other types of gains and losses,and kento momota scored the most in the 5th racket.It shows that kento momota pays more attention to the technical coherence of several rackets after rubbing and the batting effect.The direct loss of kento momota rubbing ball is lower than that of other athletes,which reflects that kento momota is skilled and plays a more stable role,which provides some suggestions for our athletes' training and competition.(3)The common points of the third and fifth rackets after the first rackets are that the number of points lost is greater than the number of points scored.The indirect scores of the second beat were greater than the number of lost points,and the indirect scores of kento momota were the most,showing a downward trend with the increase of the number of beats.It reflects the characteristics of gains and losses of different bats of kento momota after putting it on the net.It is helpful for us to further analyze and study the technical and tactical characteristics of kento momota.(4)Using decision tree tools,the technical path of kento momota scoring after rubbing and putting the net is drawn.The analysis shows that the technical path of kento momota scoring has both generality and individuality.The common technical paths of 3-beat scoring are as follows: Net shot ? Net lift ? Smash?Net shot ? Net shot ? Pounce?Release net ? Net lift ? Smash and Release net ? Net shot ? Net shot.The common technical paths of 5-beat scoring are as follows: Net shot ? Net lift? Smash ? Intercept ? Release net?Net shot ? Net lift ? Drop shot ? Net lift?Smash?Release net ? Net shot ? Net lift ? High clear and Release net ? Net shot? Net shot ? Net lift ? Smash.This provides factual basis and data support for us to further study the technical and tactical characteristics of kento momota.(5)From the analysis of the types and times of scoring loss technical paths,the common technical paths of kento momota 2-beat scoring loss are as follows: Net shot? Pounce,Release net ? Net lift?Release net ? Pounce and Release net ? Cross net.The common technical paths of 4 beats losing points are as foll:Net shot ? Net lift ?High clear ? Smash?Net shot ? Net shot ? Net lift ? Smash and Net shot ? Net shot ? Net shot ? Pounce and Release net ? Net shot ? Net lift ? Smash.Thisprovides certain data reference for our athletes to defeat kento momota.It requires our athletes to strengthen their offensive strength,improve the quality of batting,at the same time,improve the ability of control and counter-control,and cultivate the ability to create offensive opportunities.