Nuki Waza (Release Techniques): Nuki Waza are techniques of escaping from various grabs and restraints that may be used by an attacker. These are the most fundamental self-defense techniques.
Gyakute-Do is a style of traditional Japanese self-protection, descended from the classical (Koryu) Asayama Ichiden-ryu school of feudal-era Jujutsu, and the modern Hakko-ryu school, a branch of the famous Daito-ryu school of Aiki-Jujutsu.
“Gyakute-Do” translates as the “Way of the Reversed Hand”. It is a play on words that describes the art’s focus on joint locking techniques applied to the wrist and arm (gyakute), which are weak points in the human body, and a very effective means of controlling others without causing serious damage, or requiring significant strength to execute.
The term “gyakute” comes from techniques found in one of Gyakute-Do’s parent arts, Asayama Ichiden-ryu. This is the origin behind the name "Gyakute-Do". The art was originally named Goshin Bugei Gyakute-Do (Self-Defense Martial Way of the Reversed Hand) by the founder, Tadashi Chushudo Tanaka, Soushi (Headmaster), in the 1970s. Tanaka Soushi studied Kenso-ryu Jujutsu (a branch of Asayama Ichiden-ryu Okura-den), Goshindo (a branch of Hakko-ryu), Hakko-ryu, Jujutsu and Kensei-ryu Karate. The art is currently overseen by the 2nd Headmaster, Makoto Shiseido Kurabe, Nidai Soushi, in Chiba, Japan. Kurabe Soushi expanded the Aikijutsu portion of the curriculum and formally renamed the school Aiki-Jujutsu Gyakute-Do.