Dai Nippon Butoku Kai
At its most basic level, "kyushindo" can be equated with centripetal force. Tomio Otani defined it as "the accumulation of effort in a steady motion about the radius and centre of gravity". Abbe had discovered the efficiency of using centripetal force to throw much larger opponents while a student at Dai Nippon Butoku Kai in the 1930s, and it is likely that this discovery led to his further development of "kyushindo" as a philosophy.