americana bjj
The keylock,
(also known as the figure-four armlock, bent armlock, paintbrush, americana, or ude-garami is a grappling technique using both of the practitioner’s arms isolate and to cause flexion to the shoulder, elbow, and to a lesser extent the wrist of the opponent. The technique is generally set in motion by the practitioner, using their same side hand, (i.e. to target the right hand he uses his own right hand) pinning the opponent's arm to the ground at the wrist, so that the elbow falls at a right angle with the palm facing upwards. Subsequently, the practitioner will thread his opposite hand under the opponent’s bicep, reach through and grasp his own wrist, doing so creates the signature “figure four,” from which one name for this technique was derived, this also gives the practitioner a mechanical advantage over the opponent. 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. While it is feasible to execute this technique from several different positions, the most commonly utilized are the full mount and the side mount positions, most likely because these afford the greatest opportunity to isolate an opponent’s arm. This technique also has numerous variations with their own nomenclature, for instance depending on the rotational direction the arm, the addition of the word "reverse" signifying medial rotation as in reverse keylock or reverse ude-garami, in which case the usage of "keylock" indicates lateral rotation only.
