Research On The Technical And Tactical Characte Ristics Of World Women's Tennis Singles From 2015 To 2017

Serve as Serve as an important technology in tennis,more and more coaches,players and tennis researchers pay attention to it,and gradually become one of the main topics of tennis research.Therefore,it is necessary to study the technical and tactical characteristics of serve in tennis match.By using the methods of documentary,video observation and statistics,mathematical statistics,comparative analysis,logical analysis and so on,this paper takes the serving technical and tactical characteristics of24 world elite professional women's tennis singles players in the four grand slams of2015,2016 and 2017 as the research object,makes a comprehensive analysis on the application characteristics of their serving technical and tactical characteristics,objectively reveals the characteristics and rules of the use of the serving technical and tactical of the world elite women's singles players,and puts forward the development direction of the serving technical and tactical of the world women's professional tennis,and provides a certain theoretical basis for the scientific training and teaching of Chinese tennis.The following results show that:In terms of service technology: 1)east backhand grip accounted for 80.1 %,the mainland type accounted for 19.7 %,from the point of view of the game,the success rate and score rate of east backhand grip is far higher than the mainland type grip;2)the service success rate near the midline is higher than that near the midline,and there are obvious differences in the impact point change;3)in the lead racket,70.7 % of the lead racket is forward swing,29.3 % is backward swing,compared with the two,forward swing serve speed is relatively fast,the success rate is also significantly improved;4)in terms of batting position and follow-up,92.2 % of them adopt combined batting position.in follow-up,73.8 % choose to serve and jump into the court.in the match,the combined position is more explosive and more complete with swing,which plays a vital role in winning or losing the game.In terms of service tactics: 1)in the selection of service mode,the first-round internal angle and middle-way chasing serve in the first two zones are mainly flat hitting and side spinning,while the middle-way chasing serves as the auxiliary;Onthe other hand,the second serve is mainly internal angle side spin and body-chasing spin,and the second serve is added on the basis of the first serve and the second serve,so that the service is more threatening;2)on the placement point,the placement rate of the first zone is higher than that of the second zone,and the utilization rate of the first zone and the second zone is 19.1 % for the first zone and 16.4 % for the second zone;The utilization rate of the first internal angle and the external angle in the second district accounted for 18.1 % and 15.5 % respectively.The distribution of secondary falling point in area one and two is more balanced;3)on the ball speed,the average ball speed of the first two zone is mainly concentrated in the range of160.2-164 km / h,the average ball speed of the second zone is mainly concentrated in the range of 122-138.5 km / h;4)in terms of success rate and error rate,the first success rate of two areas is obviously higher than the outer angle,and there is no obvious difference between the second success rate and error rate;5)in terms of scoring rate,the winning rate is mainly concentrated in the inside and outside of the first round,accounting for 48.3 %,41.9 %,respectively,two points lost rate decreased year by year;6)ace ball is mainly concentrated in the inner corner of the first zone,the outer corner of the second zone,the difference between the two serve zones is small in the outer corner and the inner corner,followed by double fault mainly concentrated in the second zone.