The purpose of this study is to provide kinematical date to improve athleles' ability, analyzing pulling-over motion between the High school students, using three-dimensional image analysis. The objects for this study are three with winning experience of national contest. After analyzing their pulling-over motions with three dimensional image, I had conclusions as following. The time taking for the pulling-over motion is the shortest at the third phase of the highest point of barbell and the weight lifters of B players than the other subjects desirably pulled over their lower body quiekly at the condition of balance which they seek by moving the balance of their body with the weigh balance of barbell. and, As for the angel variables of joints, All subjects have significant changes in angles of shoulder joint and knee joint showing that these joints are used actively for the preparation motions. Knee joints of the A and c are the beneficiaries. moved with the disproponionate stretching and winding of knee joints in the form of asymmetry thal they don't use the momentary power effectively by the joints of shoulder and knees while the Eligibility is b winds the joints of shoulder at body und of knees at lower body and pulls over the barbell and performs a stable posture for the next perfonnance motion.
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