Armlock
（重定向自Armbars）
![Staff Sgt. Roark demonstrates armbar](/Images/godic/202412/21/Roark_armbar1238.jpg")
![A fighter attempts to escape from an armbar by slamming the opponent to the ground.](/Images/godic/202412/21/Slam_from_armbar1239.jpg")
![Ude-garami (americana) being attempted in Judo competition](/Images/godic/202412/21/Udegarami1239.JPG")
![The kimura lock (Reverse Ude Garami), applied on Hélio Gracie by Masahiko Kimura. The arm is twisted unusually far because Gracie refused to submit.](/Images/godic/202412/21/Masahiko_Kimura_vs_Helio_Gracie_ude-garami1239.jpg")
An armlock in grappling is a single or double joint lock that hyperextends, hyperflexes or hyperrotates the elbow joint and/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.