Kinematical Analysis Successful And Unsuccessful Serve Of Different Levels Tennis Players

Research objectiveTo explore the factors of tennis athletes serve kinematics occupation success and failure of action,further to verify the kinematics factors on the service failure and success through the kinematics characteristic of non occupation tennis players serve success and failure.Summarizes the tennis serves technical movement structure,provide a theoretical basis for China's tennis coaches teaching and training at the same time,also to serve the overall technological level of China's tennis athletes to improve theoretical basis.Research objectThis study selected 3 occupation athletes of the 2016 Guangzhou ATP“challenge”the world's top 300 men athletes were:GEO(won the championship game),Lorenzo.Sonego(ITA),BlazLaura,height(186±5.35)cm,weight(79±4.90)kg,age(24±2.16)years old,their entry for 9 years,4 years,4 years,and 3(research,esearch,research two three a)the Guangzhou Sports University Graduate School of professional tennis athletes,height(174.67±1.25)cm,weight(68.33±4.19)kg,age(26±0.82)years old,their training period is 7 years,6 years,5 years,a total of 6people as the object of study.Research methodThis study focuses on the biomechanical experiment,with two high-speed cameras on the occupation and non occupation group tennis players during the match of the serve skill for the whole shoot,using the German Simi-Motion video analysis system to obtain kinematic data related to the acquisition of the serve skill,including the body and the racket velocity and acceleration and angle and the displacement,and the digital filtering of the original data smoothing,normalization etc..Research conclusion(1)This study found that the professional and non professional tennis players have their own inherent kinematic characteristics and parameters,and the performance of different coordination.(2)In the body center of gravity line speed and the angle of elbow joint occupation group tennis players(the toss arm)and vertical shoot time trunk twist angle and angular velocity may influence the success and failure,while others did not find differences in the effects of kinematic indicators serve between success and failure.(3)The angular velocity of shoulder joint,elbow joint,wrist joint and trunk twist angle of non professional athletes during service(4)In the statistical analysis,the method is single,it is suggested that the multivariate statistical method should be used in the future.(5)It is suggested that the tennis players in China should pay more attention to the training of tennis service skills in the future training.(6)It is suggested that in normal training,you should try to train in different environments so as to lower the service mistakes caused by circumstances or other factors.