Armlock

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.

In training, the method of executing an armlock is generally slow and controlled to give the opponent time to submit prior to any infliction of injury.

However, in self-defense applications, or when applied improperly or with excessive force, armlocks can cause muscle, tendon and ligament damage, even dislocation, or bone fractures.

The advantage of this modification is that the attacking practitioner's hips more closely engage with the defender's shoulders, making the forthcoming armbar submission easier to accomplish.

The flying armbar is considered to be one of the most visually spectacular joint locks, but it is uncommon because of the associated risk of falling into a poor position.

It is an effective competition technique because the opponent's arm became exposed while defending the sankaku-jime and their attention is focused in stopping the strangle.

To finish the submission the practitioner slides the wrist of the opponent toward the lower body, while simultaneously elevating the elbow and forearm, in a motion resembling using a paintbrush, creating opposition to the joints and causing the necessary flexion in the shoulder and elbow to cause significant pain, and damage if the opponent fails to submit.

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).

[6] 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.

[7] 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.

[8] The Wichita Eagle did likewise that April, for Dick Daviscourt's first fall on strongman Henry "Milo" Steinborn.

[9] 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...".

It is also possible to put pressure on the elbow joint by bending the leg entangling the arm, and twisting it in a specific manner.

The technique called a monoplata is a similar armlock that resembles jūji-gatame or spiderweb position yet has a mechanism like an omoplata.

In recent years, its popularity with North Caucasian wrestlers like Khabib Nurmagomedov has garnered the lock the nickname Dagestani Handcuffs.