Descriptions of the Aiki-taiso from Kobayashi-Sensei:

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1. Nikyo UndoFrom a natural stance, raise your left arm horizontally as you look at the back of your hand and place your right palm over the first knuckle of your left hand. The "One" count has you bend your left wrist with your right hand and push your left elbow forward. Your fingers must be pointed away from you in order to feel the stretch through the entire arm to the shoulder. This exercise is very useful in relieving tension from your shoulder.Release your hand and repeat several times for each hand