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김의환,최청삼,안병화 한국운동역학회 1994 한국운동역학회지 Vol.4 No.2
The purpose of this study was to develop a judo doll applicable to throwing (Nage-waza) and grappling technique(Katame-waza) training in judo. The height of the doll is 170cm and its weight is 50kg. The weight of the doll can be adjusted by lead belts having various weights that can be attached to the trunk or lower extremities. a judo doll was made of iron steel for skeletal structure vand coil spring for artiualation as similar to the human being in its shape as possible. The skin of the doll was made by soft rubber to be like human skin and protect the doll from an impact exerted during falling down by attack. Judo uniform(Judogi) is worn to the doll like as real human being. The knee angle can be flexed up to 35 degrees backward, torso 30degrees and doll itself 15degrees forward. The electric magnet plate was installed on the floor to keep the doll standing-together(Kumi-kata) the basic natural - position(Shizen-tai) and exert a certain amount of resistive force against an attacker to maximize training effect. Its magnetic force interacted through the iron feet of the doll can be varied by a control system. A structural frame having electric motor and control unit was constructed to automatically put the fallen doll back up to its original Kumi-kata and Shizen-tai after attack. Practicing with this doll has some advantages. It can be used to practice and train alone in such a way to prevent human parter from possible severe injuries. Also it is possible to use biomechanical analyses of judo skills more effectively with the attachment of sensors in the proper location
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