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Principle of Aiki and its Application in Aikido and Aikijujutsu
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Kyoichi Inoue

Aikido Shudokan 32nd demo: Inoue Kyoichi Kancho part 1of 3

The application of Aiki in the techniques demonstrated by Kyoichi Inoue is analysed below. 

Analysis

At a time of 12.04 both Ukes attack by grabbing Tori's wrists. Tori induces both Ukes to apply Aiki by first lowering his weight/wrists and then rotating his wrists away from them. To resist the downward movement of the wrist, Uke relaxes his upper body and extends his legs in preparation to pull upwards. Consequently, the muscle torque about the foot joint of Uke's front leg, due to him pulling upwards, is then in the opposite direction to that required to resist Tori's wrist being rotated/moved upwards. Uke is then unbalanced to the front. Aiki-Lead

Analysis

At a time of 11.37 Uke grabs Tori's wrist. Tori induces Uke to apply Aiki by first moving his body/wrist towards Uke and then horizontally rotating his wrist about his elbow. Tori's forward movement induces Uke to momentarily relax his upper body and to prepare his lower body to push back. Consequently, the muscle torque about Uke's ankle joints, due to him pushing, are in the opposite direction to that required to resist Tori moving his wrist about his elbow. Uke is unbalanced to the front. Uke is prevented from recovering his balance by his fingers being bent backwards. Aiki-Lead

Analysis

At a time of 8.44 Uke grabs Tori's wrist. Tori induces Uke to apply Aiki by first moving his elbow/wrist away from Uke and then lowering his wrist about his elbow. Tori's backward movement of his wrist induces Uke to momentarily relax his upper body and to prepare his lower body to pull back. Consequently, the muscle torque about Uke's front foot joint, due to him pulling, is in the opposite direction to that required to resist Tori moving his wrist downwards about his elbow. Uke is unbalanced to the front. Aiki-Lead