The Secret of AIKI Techniques DVD by Hirokazu Hatamura Tatami Fightwear Only by mastering techniques that masteryanglive Only by mastering techniques that seamlessly integrate offense and defense can one truly wield effective skills Main principles of knife self defenseKnife Disarming Techniques using a lever and the 3 planes conceptTurning a knife against an opponentBody integration into the knife's planeKnife threats to arteries and neckThe threat of a knife from behindKnocking a knife out of the opponent's handPsycho energetic impact to the opponent's central nervous systemThe threat of a knife in everyday life Receiving side posture in seiza position a fundamental training method in Kika jutsu