This is a basic yoga posture. It is very easy to do especially if your back is not too stiff and rigid.
Technique Turn over on the stomach and place the hands on the floor beside the pectoral muscles.
Place the hands, palms down, under the shoulders on the floor. Inhaling, without lifting the navel from the floor, raise the chest and head, arching the back. Obtain as complete a stretching of the body as possible. Retain the breath, then exhale while slowly lowering to the floor. Rest, then repeat two to seven times.