Kinematics Analysis Of The Serve Techinique Of Beijing Sport University Tennis Team

Purpose: using infrared Qualisys motion capture system,the Beijing Sport University tennis players serve on behalf of ball holding time and hitting time of the shoulder and hip torsion kinematic analysis,difference of technical movements and occupation players serve the domestic tennis players.Provide reference for the service of Chinese athletes.Methods: select the Beijing Sport University tennis team of 14 athletes as experimental objects,methods of detection,ITN test method in the reference service that serves from area to area two,in accordance with the order,corner angles and angles and external angles and each corner of 3 balls,each ball has two chances to serve.By using infrared Qualisys motion capture system on the shoulder and hip movement each service trajectory capture,using Qualisys data analysis software to calculate the male and female athletes serve the ball for the shoulder and hip torsion moment and moment of the ball shot.Comparative analysis of the results of the hip and hip movement in different planes and the comparison with the world elite players.The results show that: first,male and female athletes serve in the ball holding the shoulder and hip torsion moment and the moment the ball had no significant difference.Second,the higher the score,the higher the relative height of the shoulder hip.Third,the average score of male athletes is better than that of female athletes.When men and women serve shoulder and hip twist,compared with their better athletes,male athletes are too small and female athletes are too big.Suggestion: study is on a high level of Beijing Sport University of male and female athletes shoulder and hip torsion angle were measured and analyzed,the follow-up study of the professional athletes' shoulder and hip torsion were measured;and the male athletes in contrast,only a reference to the foreign excellent athletes at the follow-up study data,can use more excellent athletes compare.