玉虎流
Cho Gyokko brought the school to Japan from China during the Tang Dynasty and it was handed down from generation to generation. Sakagami Taro Kunishige organized Gyokko Ryū shitojutsu. In the Tenmon period (1532 – 1550), he taught it to Sakyo Isshinsai who created Gyokko Ryū kosshijutsu. Its sister school is the Koto Ryū, also created by him. Both Gyokko Ryū and the aforementioned Koto Ryū were taught by him to Momochi Sandayu, who carried on the traditions within Iga Ryū until the late Tokugawa period (mid 19th Century).
Description of Technique
Kosshijutsu, 骨指術
Literally meaning “Bone finger technique”, this art centers on disrupting the nerve center and vital organs of an opponent in order to defeat an opponent. Characteristically, these techniques will create temporary paralysis or involuntary responses in the arms and legs to diffuse attacks or assist in weapon disarm. The unique movement of Kosshijutsu is extremely quick and circular, emphasizing the use of dynamic rotational weight to maximize striking impact or joint load on an opponent. Feet, knees, hands and elbows are conditioned to strike with minimal surface area in order to create penetrating results.
This tradition is divided into two categories of training. The first is three manuscripts of fundamental training, including striking patterns, evasions/receiving techniques and basic grappling patterns. Of course these fundamentals can evolve to suit limitless variables, but in order to grasp the principle training found in the Kata, these basics need to be matured. The second category includes three manuscripts of orthodox forms. The tradition of Gyokko Ryū Kosshijutsu includes 19 fundamental patterns followed by 29 orthodox Kata. The highest order of this training involves training against an opponent armed with a sword.
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