"Place the hands on the floor about two feet apart. Then, with the legs stretched out to the rear with the feet also about two feet apart, push the body, and especially the hips, up as far as possible, rising on the toes and hands. At the same time the head should be brought so far down that the chin comes up against the chest. Next, allow the body to come slowly down to a ‘sagging’ position. Bring the head up, causing it to be drawn as far back as possible."
"The muscles should be tensed for a moment when the body is at the highest point, and again at the lowest point."
"The muscles should be tensed for a moment when the body is at the highest point, and again at the lowest point."
