Analysis On The Three-dimensional Kinematic About Chinese Male Hammer's Final Push Technology

The purpose and content: hammer comes relatively late in China, and is not widely available. The level of China's men's hammer has arrived in the 90's stagnating and is still declining. With the advanced world level there is a considerable gap. Through the Chinese Male Hammer Throw Final Push in three dimensional analysis techniques to identify the last hard time and space characteristics of the technology to meet principles of biomechanics. Space motion of the main features of the use of hammer and athletes physical characteristics of the various aspects of space motion information, as the hammer throw technical indicators, to judge good and bad sports technology.There are specific targets for the final stage of the joint angle shot, speed, height and position were related with the hammer, etc., combined with analysis of the world's top athletes throwing kinematics data, the related indicators were analyzed to identify deficiencies in the technical aspects Men's Hammer technology that our country there are major problems and gaps, rotary hammer throwing for the teaching and training to provide theoretical foundation.Methods: In this study literature, about three-dimensional video analysis and mathematical statistics, first comparative analysis on body shape domestic and foreign players to find out the distance between the two; then followed by the image analysis method on the Male Hammer's Final Push Technology for kinematics analysis of relevant indicators, next make statistical processing to identify problems and gaps, and finally according to the analysis results are as follows:1) There is not many significant differences between the foreign elite athletes, sports technical characteristics consistenting with the basic laws of hammer and characteristics.2) Overall changes in rotation speed of each joint line movement mechanics laws, the speed change is reasonable. Compared with foreign athletes speed gap between the obvious changes. Maximum rate of change of left knee, is a proactive force to bring the body to throw the direction of lower limb rotation. Body on the right to force the main active ankle, pushing the body to throw the direction of lower limb rotation. Active direction of the left shoulder turns to throw hard, maintains a low body position to lead the movement faster.3) The joint angle increased gradually trend, the performance of the entire movement process technology initiative for the left side of the body force, and body fat, strength characteristics of the right supplement.And with the right to throw the body on the left to lead the direction of high speed and gradually increasing the body center of gravity for the hammer height for better shots.4) Height of the body movement of joints, the overall performance of the process of gradually increased, and increased significantly. Use the right side of the body to throw the body aon the basic of the left turn, getting up to hammer a certain acceleration and height; overall change in line with Hammer technology features and the basic laws of motion.