The Method And Application Of "passive Point" To Divide Badminton Rounds

High Level Badminton men’s singles competition,every point to get a multi-beat contest,with the increase in the number of rounds,the contestants on the control of the competition is becoming fierce.However,the increase in the length of the round has brought great challenges to the study of the control in badminton competition.The traditional methods of game analysis are difficult to complete the research work of control in the badminton games.This paper proposes a new method of dividing each turn into several stages by using passive point as a tool,which helps us to study the development and evolution of control in badminton competition.Passive point is the hitting point at which an athlete uses a passive body posture to hit the ball.It is an objective,observable and quantifiable indicator of technical and tactical.Passive means that it is easy to lose points,get rid of passive means to obtain control of the game.So,the round division method based on passive point has important practical value.We collected the 9261 three-dimensional technical and tactical data between Chenlong,Viktor Axelsen and Kento Momota.Finally,we came to the following conclusions:(1)We propose to divide the badminton match round into three stages,which are dynamically changing and the number of shots is not fixed.SP stage:Serve to the first passive point.PP stage: The first passive point to the last passive point.PE stage: The last passive point to the score shot.This method provides a new way of thinking for us to study the change of badminton control and helps us find new rules.(2)This paper using the technology decision tree tool studies the statistical law that athletes fall into passivity for the first time in the "SP stage" and get rid of passivity in the "PP stage".We found the general law and the special law of athletes.(3)This paper finds that when the athletes are passive for the first time,the common technical path patterns are Low serve→ Net shot →Net lift,Low serve→ Net shot →Net shot,Low serve→ Net lift→ Smash→ Intercept,Low serve→ Net shot → Net shot→ Net lift.This provides us with a new factual basis for further improving the technology and tactics of the service and return of service.(4)This paper finds that the technical path mode for athletes to get rid of passivity are: Intercept → Net lift,Intercept → Net shot,Net shot→ Net lift,Intercept → Net lift→ Smash→ Intercept,Net lift→High clear→ Smash→ Intercept.This provides data support for us to compete for control of the game during the phase of the confrontation.