What is Kansetsu Waza?
“Kansetsu waza” (Joint locking techniques) consist of using one’s own legs, arms, and knees, etc., to grasp the opponent’s joint (elbow, knee, etc.), and bend it in the reverse direction to lock the joint, thereby rendering him virtually helpless.
Most of the Kansetsu waza (Joint locks) use the “lever principle” to lock the opponent’s joint. Because Kansetsu waza (Joint locks) pose considerable risk of injury, they are prohibited in the junior division.