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  • ジュウドウ ノ カンセツワザ ニ オケル キンシワザ ノ シュルイ ト ギホウ
  • The Varieties and the Techniques of Prohibited Kansetsu-waza in Judo

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In the beginning of judo, Kansetsu-waza was applied in competitions or Randori practice to attack various joints, such as an elbow, a wrist, a knee, or an ankle. Kansetsu-waza toward the elbow is permitted to apply but it is against regulations to apply Kansetsu-waza toward other joints in competitions or Randori practice in judo today. There is no prohibited Kansetsu-waza in the name list, of judo techniques or in Kata except for Ashigarami and Kotehineri. The purpose of this study was to examine the varieties and the techniques of prohibited Kansetsu-waza in judo. The analysis by means of movement morphology was conducted in this study, which was the impressionistic analysis of movement process and the proof by former literature. The varieties of prohibited Kansetsu-waza were investigated by classifying into the types of attacked joints. The techniques of prohibited Kansetsu-waza were investigated by the impressionistic analysis of its movement process based on the literature. The viewpoints of the techniques were which direction the joint was moved and what body part of Tori mainly worked in the completion phase. The varieties and the techniques of prohibited Kansetsu-waza in judo were revealed as follows. The Kansetsu-waza to attack the wrist was Kotekujiki with the wrist flexion and Gyakutekujiki with the wrist extension. That to attack fingers was Gyakuyubi with the fingers extension. That to attack the knee was Ashigarami with the knee extension and the hip internal rotation, and Ashikujikijujigatame with the knee extension. That to attack the ankle was Ashikujiki with the ankle plantar-flexion forced by Tori's hands, Gyakuashikujiki with the ankle abduction and Ashizume with the ankle plantar-flexion forced by Tori's body. That to attack the cervix was Kubikujiki with the cervical flexion, and Kubihineri with the cervical rotation and the cervical lateral bending. That to attack the thorax and lumbar was Koshikujikitaigatame with the thoracic and lumbar extension. To reveal the varieties and the techniques of prohibited Kansetsu-waza contribute to improve safety instructing and refereeing skills in judo because dangerous techniques and movements in competitions or Randori practice become clear.

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