Matawari is training to add the excursion of the hip joint.
Matawari is performed at the first stage of the training menu.

You sit in the ground while opening a foot parallel.
The person who cannot do it will sit down beforehand.
You bend a chest.
It prevents you from rounding a back.

You incline the body with right and left in the front.
Will be aware of touching a stomach in the ground than a chin.
The beginner must not overdo it.
Let's begin with the enacted place.
Or the beginner will have somebody push the back.

(please teach my English mistake)