Kinematic Analysis on Chinese Outstanding Javelin Athlete Ma Qun’s Final Force

Abstract

This paper mainly used the three dimensional photograph analysis method to analyze the best performance of Ma Qun and to acquire relevant kinematics parameters of his last exertion when throwing a javelin (mainly including the loss rate of body horizontal gravity speed, torso angle, right shoulder angle, length and time of the fourth step, the angle of javelin shooting, the posture angle, the stretch angle, attack angle, the shooting speed and height and so on),in order to analyze the recording in a more convenient way, we divide Ma Qun’s final exertion movement in his javelin throwing (by his right hand) into7 moments and 3 stages. During the javelin shooting stage, the initial javelin shooting speed of Ma Qun is 27.60 m/s, slower than the world’s excellent javelin athletes’ speed of 29.00m/s. The best angle of throwing javelin is about 32.00°, with the posture angle remain as 29.45°. And the javelin shooting angle of Ma Qun is 36.81° and his posture angle is 38.21°, both higher than the average index of the world’s excellent javelin athletes, casting a negative impact on his performance. After the comparison of relevant data between Ma Qun and excellent male javelin athletes all over the world, Ma Qun’s advantages and shortages have been found out, thus can help providing kinematics indicators and technical guidance for the training of Chinese athletes.