| （Department of Sports Human Science，Jilin Institute of Physical Education，Changchun 130022，China） Abstract: By basing her study subject on LI Ling, women shot put champion in Doha Asian Games, the author studied the rhythm and characteristics of lower limbs moving speed at different stages in the backward step gliding shot put putting technique of LI Ling, and revealed the following findings：at the step gliding stage, LI Ling’s mov-ing speed of body center of gravity and the shot put was increased significantly, but compared with other excellent athletes, the difference between the speed of the center of gravity and the speed of the shot put of LI Ling is too small; at the transition stage, LI Ling maintained a good speed of body center of gravity and the shot put; at the final power exploding stage, LI Ling’s speed of body center of gravity dropped too fast, which produces an adverse effect on final acceleration of the shot put.
Key words: science of sports training；backward step gliding shot put technique；rhythm and characteristics of speed；LI Ling |
