page_title: Armlock
section_title: Shoulder locks
hierarchical_section_title: Armlock / Shoulder locks
caption_attribution_description: U.S. 5TH FLEET AREA OF RESPONSIBILITY (Sept. 30, 2014) U.S. Marine Corps Sgt. Jacob C. Hunter, top, a data chief with the 11th Marine Expeditionary Unit, and a native of Wilson, Pennsylvania, executes a bent armbar from a side mount during a Marine Corps Martial Arts Program (MCMAP) training session aboard the USS San Diego, Sept. 30, 2014. The 11th MEU is embarked with the Makin Island Amphibious Ready Group and deployed to maintain regional security in the U.S. 5th Fleet area of responsibility. (U.S. Marine Corps photos by Gunnery Sgt. Rome M. Lazarus/Not Released)
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: The "shoulder lock" is a technique used as a method of upper body restraint. It should not be confused with a choke because the lock does not block or interfere with the flow of air or oxygen to the brain. The application is executed by applying pressure between the radial bone and shoulder.
caption: Standard americana execution
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