Some Of China Elite Female Athletes Sliding Last Forced The Three-dimensional Kinematics Analysis

Analyzing and diagnosing the female shot put technique to raises our country female shot movement overall level has the vital significance. Designates the first 3 athletes who enter in 2005 "Jiang Lan Cup" national track and field grand prize series match the female shot competes as the research object. Uses two JVC9800 high speed camera by the 50fps speed synchronization photography, carries on the picture using the German SIMI-motion video recording analysis system analyzes. The results show that: (1) At the gliding stage, our country elite athletes' top speed of swing legs appear at the movement right legs stretches positively, while there exists the swing legs vertical speed too high and the enlarging angel of body gravity, which reduces the speed of body gravity and shot. (2) The transitional stage technology movement has the stop, the right hipbone does not move forward enough in the direction of putting, transitional time is longer, velocity of body gravity and shot gravity descend,left leg swing not timely and speedy landing, the right leg after landing don't timely and speedy button up and push, left support technique is unsatisfactory, (3) The finally forceful stage, the release velocity of domestic athlete is lower than the foreign excellent athlete. The angle of release is slightly smaller than foreign excellent athlete. The height of release is lower than foreign excellent athlete.