Kimura is a two-jointed arm lock. It is a mixed martial arts technique. The Kimura wristlock is a highly powerful and successful submission tactic. Because of its power and effectiveness, it is used frequently in MMA competition. Also known as the "Japanese armlock", the Kimura starts with the attacker sitting on the ground with their opponent's head in their lap. The attacker's shoulder blade must be against the mat at all times while maintaining control of the head. Once this is done, the attacker rolls over so that they are facing the opposite direction. They then use their free hand to grab the back of the neck or hair of their victim and pull hard to bring them back towards them. This attack can cause immense pain and damage to the spinal cord and brain if applied correctly. However, if applied incorrectly, it can also cause serious injury to the attacker themselves. Therefore, this move should only be attempted by experienced fighters who know how to protect themselves from possible injuries. The Kimura was first popularized by Genshekimura, a Japanese wrestler. Although he never competed in MMA, the Kimura was widely adopted by other wrestlers because of its effectiveness in traditional wrestling.