A Study On The Best Serving Technique And Movement Of The World's Top Male Tennis Players In The Game

In this paper,by consulting a large number of literature,we learn a lot about improving tennis serve technology at home and abroad,and through the In 2016 and 2018 atp250 Chengdu Open champion runner up four athletes in the final process of the best serve technical action three-dimensional video analysis,from the perspective of sports biomechanics analysis of its serve technical principle,in order to obtain the world's outstanding men's tennis players serve technical parameters,and their serve process in all stages,at all times of the technical action analysis and Research,compare and analyze,summarize its advantages and disadvantages,reveal the service technology model of excellent athletes,demonstrate the biomechanical principle of tennis service technology through experiments,and provide some service technology reference data for coaches and athletes,enrich the theory of tennis technology,and improve the training methods of service technology.Through the research,the following conclusions are obtained:(1)Throwing and racking stageAt T1,the height of the ball from the hand is higher(2.24m),which is 1.13 times of the height,which is beneficial to strengthen the control of the ball by the hand.At the time of T1,the greater the hip angle of the same side of the throwing arm,the more fully extended the hip joint,and the greatest hip angle(164.1 °)of the four athletes.Kakalov and figney's slow release speed is conducive to the ball's stable upward movement.At T2,only the left knee angle of four athletes is smaller than the right knee angle,and the difference is obvious.This is because the center of gravity of the four athletes gradually changes from the right foot to the left foot because of the FB position.Cacharov,Ramos and tomic have the same knee bending angle,and the two legs are evenly stressed.Among them,the left knee of cacharov has the smallest flexion angle and the most sufficient lower limb strength.(2)Back beat stageThe larger range of knee bending and pedaling is beneficial to the downward movement of racket,the upward movement of body,and the accumulation and release of lower limb strength.At the T3 moment,the range of pedaling and stretching of the left and right knee joints was the largest(77.9 ° and 83.1 °),and the range of stretching of the left and right hip joints was also the largest(39.9 ° and 25.1 °),which indicated that in the back racket stage,the movement of surpassing the equipment was obvious,and the lower limbs provided sufficient explosive force for swinging and hitting the ball.Kacharov had the largest shoulder and elbow angle(143.9 ° and 98.5 ° respectively)and the largest shoulder speed and elbow speed(5.33m/s and 9.15 m / s respectively)at T3.Among the four athletes,vogney had the smallest shoulder and elbow angle(107.2 °and 69.5 ° respectively)and the smaller shoulder speed and elbow speed(4.35m/s and6.88 m / s respectively).(3)Batting stageAt T4,cacharov and fganini have larger shoulder angle(147.1 ° and 148.1 °respectively),which provides a good hitting height and is conducive to the full exertion of the final force stage of the whip movement.At T4,the elbow and wrist joints of the racket holding arm of the four players are very straight,which means that the racket holding arms of the four players are fully extended when hitting the ball,which is conducive to the transmission of strength and the completion of the whipping action.At T4,the angle of the left and right knees of the four athletes is similar,which means that the two legs are evenly upward when serving.At T4,the hip angle of the same side of the clapper arm of three athletes,cacharov,Ramos and tomic,was larger than that of the other side,indicating that their hind legs were actively pushing forward and extending upward.Cacharov and Tommy have higher hitting point height,which is beneficial to obtain larger effective serve area.The drop between the highest throwing point and hitting point of four players is less than 0.50 m.It shows that the four players serve consistently and coherently.The speed of arm shoulder,elbow,wrist,hand and racquet head of the four athletes holding the racquet at T4 time showed an increasing trend in turn,which was in line with the principle of whipping technology.Among them,the increasing speed of each link of vogney is larger in turn,and the speed of racquet head at the moment of hitting is the largest(27.28 m / s)(4)Volatilization stageThe shoulders and hips of the four athletes rotate fully.T5 always uses the knee bending to complete the buffering action and actively prepare for the attack of the next stroke.The knee joint bending angle of cacharov's landing foot is large,which is not conducive to the quick preparation of the next stroke.The best technical action of the four athletes is better than that of karchalov,which is worth learning.Today's tennis technology and training methods are constantly updated and improved.Only by constantly learning and improving their own technical movements,can we get continuous improvement.