page_title: Armlock
section_title: Double wristlock (Gyaku ude-garami)
hierarchical_section_title: Armlock / Shoulder locks / Double wristlock (Gyaku ude-garami)
caption_attribution_description: English: U.S. Marine Corps Gunnery Sgt. Matthew Nightwine, quality assurance chief, and Cpl. Jonathan Castillo, an airframe mechanic with Marine All-Weather Fighter Attack Squadron (VMFA(AW)) 225, demonstrate Marine Corps Martial Arts Program techniques during a visit at Sekolah Menengah Eben Haezar Manado High School in Manado, Indonesia, Nov. 9, 2016. As part of a community relations event, the visit offered service members the opportunity to engage in cultural exchanges and build relationships within the local community. The Marines and Sailors then played basketball against the school basketball teams, losing 50-22 after playing three games. (U.S. Marine Corps photo by Cpl. Aaron Henson) Unit: Marine Corps Air Station Iwakuni
context_page_description: An armlock in grappling is a single or double joint lock that hyperextends, hyperflexes or hyperrotates the elbow joint or shoulder joint. An armlock that hyperflexes or hyperrotates the shoulder joint is referred to as a shoulder lock, and an armlock that hyperextends the elbow joint is called an armbar. Depending on the joint flexibility of a person, armlocks that hyperrotate the shoulder joint can also hyperrotate the elbow joint, and vice versa.
  Obtaining an armlock requires effective use of full-body leverage in order to initiate and secure a lock on the targeted arm, while preventing the opponent from escaping the lock. Therefore, performing an armlock is less problematic on the ground, from positions such as the mount, side control, or guard. Armlocks are more difficult to perform when both combatants are standing up, though the stand-up variants are a focus in certain systems such as Chin Na.
  Armlocks, considered less dangerous techniques in combat sports allowing joint locks, are the most common joint locks used as submission holds.
context_section_description: Double wristlock / chicken wing (catch wrestling), kimura (Brazilian Jiu-Jitsu), or reverse keylock are terms used to specify a medial keylock known in judo as gyaku ude-garami (reverse arm entanglement) or simply as ude-garami. The application is similar to the top wristlock, except that it is reversed. It needs some space behind the opponent to be effective, and can be applied from the side control or guard. Contrary to the top wristlock, the opponent's wrist is grabbed with the hand on the same side, and the opposite arm is put behind the opponent's arm, again grabbing the attacker's wrist and forming a figure-four. By controlling the opponent's body and cranking the arm away from the attacker, pressure is put on the shoulder joint, and depending on the angle, also the elbow joint (in some variations the opponent's arm is brought behind their back, resulting in a finishing position resembling that of the hammerlock outlined below).
  The name "kimura" started circulating in Brazil after a judoka and a professional wrestler Masahiko Kimura used it to defeat one of the founders of Brazilian Jiu-Jitsu, Hélio Gracie. This variation of the name gained more prominence in MMA after the introduction of UFC, and the role Gracie had in its early history. Although a top wristlock is technically a reverse double wristlock, UFC announcer Bruce Buffer still announces fights won by top wristlock as "by tap-out due to a kimura".
  Professional wrestler Terry Funk credits Lorigo "Tony" Morelli with introducing the hold to wrestling "in the '20s", and expressed light frustration with the term "kimura" gradually replacing "double wristlock". He says Morelli set it up by giving opponents (either in fixed matches or legitimate challenges) his back, while standing, throughout his thirty-year career. A reporter for The Spokesman-Review used the term in June 1925 to describe a submission by Jim "Cyclone Thompson" Corrigan over the deputy sheriff of Worley, Idaho, without elaborating on the mechanics. The Wichita Eagle did likewise that April, for Dick Daviscourt's first fall on strongman Henry "Milo" Steinborn.
  The 1928 National Collegiate Athletic Association rulebook noted, "Attention is called to the fact that if the double wristlock is brought up to a twisting hammerlock, it becomes an illegal hold and must be stopped by the Referee...". Elsewhere, it prohibits preventing an opponent from escaping with a bodylock, with low-quality photographic illustration. It also noted concern for the danger of a legally applied double wristlock. Robin Reed had used the move to force pins on his way to an Olympic gold medal in 1924.
caption: Double wristlock armbar version on the ground
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