Musha dori, underarm shoulder lock - Ninjutsu
Video of Musha dori
Video explanation of basic Musha dori (gosha dori)
Video of basic gosha dori
Video of advanced gosha dori
Musha dori, (武者捕), also called Gosha dori, (גושה דורי, פריקת כתף - נינג'יטסו) is an important joint lock of the kihon happo that dislocates the shoulder. Recommended by takamatsu as an indispensable part of Ninjutsu.
Description of Gosha dori, dislocating the shoulder arm lock
Uke is grabbing and pulling Tori to his front so that Tori's position will be unstable. Then, when tori pulls back in reaction, uke entwines tori's hand inside uke's armpit. It to have a lever tori's elbow is bent by uke's lowering his whole body and then going up again. Uke does a pivot and while securing the wrist inside his armpit turns as if he and Tori are watching at the same direction. Then uke lifts his arm together with Tori's elbow and causing tori's elbow to point to the sky (without doing that the lock is not effective)putting pressure on tori's shoulder. Uke secures his hold. Finally Uke gets down to the floor while maintaining a upward push on tori's bent elbow, overpowering Tori and dislocating his shoulder. without a doubt a very powerful lock.