The verbatim meaning of Kyusho Jitsu is Pressure Point Combat Art. It is based on classical Chinese medicine/acupuncture. The essence of Kyusho Jitsu is disturbing, dizzying, and/or stopping the flow of body energy by attacking the vital points (meridians and neural tracts) of the body.
The principles of Kyusho Jitsu can be found hidden in all of the traditional martial arts. They can be tracked best in those styles where Kata are performed. Each Kata movement has a fighting competence such that movements which have been thought to be blocks, or preparation, or ones the practitioner just accepted without explanation…gain powerful new meaning.