Koryu no kata Dai Yon – ura waza – Study Group Tomiki Aikido

There are different opinions on the meaning of ura-waza.

reverse or counter technique, also called kaeshi-waza.
alternative performance of kuzushi with application
……….

7-hon no kuzushi ura-waza

In Koryu no kata Dai Yon, the 2nd section is called Ura-waza. This section is build upon the omote-waza discussed in a previous article.
The start of the 7 waza are the 7-hon no kuzushi without the throw of the omote-waza, followed by an alternative action. Some of these actions are applications for randori (restricted free fight) or goshinho waza (aiki self-defence). The “kuzushi” element is a prime factor for a non-muscular approach.

Non- muscular actions

Movement is based upon muscular actions. When we say “non-muscular action”, we are talking about extending muscular actions, and not flexing muscular actions.
For a technical explanation see Encyclopedia Britannica.

Pulling and pushing are 2 different movements, but from a non-muscular point of view both are using an extensor action. Basically all “kuzushi” movements are based upon the non-muscular concept. The moment when we use a flexor action, opponent will intercept and can do a counter movement.

All non-muscular actions in koryu no kata dai yon are movements away from the centre to the outside.