The Evolution Of Tennis Racket On The Development Of Tennis Shot Production And Forehand Techniques

Tennis is the second most popular sport in the world. Compared with the tennis in the wooden times, the game is becoming increasingly fierce and popular, and the technique has changed a lot. This is mainly because in its evolution history, tennis has three big technological changes: racket, TV transmit and eagle eye. Tennis racket serves as the joint part between hand the ball, it has direct influence on shot production, forehand techniques. But there exist no research in this field especially from the dynamic view of tennis racket evolution.The paper uses the literature consultation, video observation, questionnaire method, specialist interview and deductive and inductive method to invest the tennis development of different period. And finally give a comprehensive picture of the evolution history of tennis technique under the influence of tennis racket. And at the same time predicted the future development of tennis racket. The conclusions are as follows:(1) In the drive effect:the evolution of tennis racket greatly enhanced the tennis drive accuracy, speed, power and spin. Leading the game develop towards the direction of "fast","quasi","hard" and "spin".(2) In the forehand stroke technique:1874-1940s, antique wooden bat and vintage racket period,:Forehand was played with middle stance, Continental, Oriental style of grip. Greatly exaggerate the use of the body center of gravity moved forward to hit the ball.1950s-1970s, modern wooden period:The forehand has not changed virtually. the linear swing is big and smooth, the arm strength in the shot is increased than before. 1970s-1980s, metal racket transitional period:The hitting stance moved from neutral to open and semi open. And the western and semi western grip are becoming more and more polular. The emergy of metal racket brings the concept of Windshield swing.1985s-1990s The arrival of carbon racket developed the small muscle’s strength."double bend" action of arm appear in the hitting phase:arm do not act as a whole when swing forward and hit, but forearm and wrist separate from the whole unit and act as single unit in forehand drive.1990s-so far, carbon racket maturity period:Formed a relatively mature and stable modern forehand. A whip is more obvious, the rotation of the body is more fierce. The hitting height is higher which reach the shoulder height.(3) The racket evolution causes forehand stroke style more fierce. Today’s game is more aggressive and explosive. Tennis "Violence Aesthetics" takes place of "refined and cultured" style.(4) The future development of tennis racket would not focus on appearance and forms. Researches would emphasis the structural function, so as to enhance power and reduce harm to the athlete.