The SEMG And Three-Dimensional Kinematic Analysis On Osoto Gari Of Nage Waza In Judo

The traditional Nage waza skill such as Osoto gari is one of the most important skills in judo,which players exercise most,apply most and apt to score easily.In these years,our players' nage waza skill have been largely improved,the gap between us and the world' s high skill even exist.There are few researches focused on the skill of judo,and our study choose 8 outstand judo players from athletics school of Beijing Sport University as our research object,divide them into outstanding groups and general groups,using sEMG,Kinematic analysis,combining with theory of sports anatomy to analyze and evaluate the Osoto gari of two groups in judo.According to the research,we get these conclusions:(1) The two side rectus abdominisp,the bliquus externus abdominis biceps brachii,triceps brachii,gluteus maximus,biceps femoris,inside gastrocnemius of the right body,and back part of detoid,gluteus maximus,rectus femoris of the left body play more important role in Osoto gari.Athletes should strengthen the muscles above the practice in training in the future.(2) The speed and the rate of outstanding groups are bigger than general groups,for example:In the the left leg striding stage and the right leg forward swinging stage,the range of left arm pulling backward opponent's body and the right hand grasping opponent' s left collar upwardly of the outstanding athletes is bigger than the general athletes, in this stage the better athletes' s body touch with the opponent' s body closer than the general athletes.In the right leg backward swinging stage, the left leg and body's stability of the outstanding athletes is higher than the general athletes,the range of body bending,torso rotating toward left and the right shoulder sinking of the outstanding athletes is bigger than the general athletes.General athletes should further enhance muscle strength training to improve technique.But In the the left leg striding stage the speed of the outstanding athletes are slower than general athletes. (3) The technology of the outstanding groups and general groups both have the technical unreasonable place:in the right leg backward swinging stage,they pull opponent' s sleeves backward with their left hands,but not push opponent' s body with right hands together.