Lie on your back with one leg up over your inflatable large block or chair.
Your other leg is straight out on the floor with it propped up from the side.
Your arms should be at 45 degrees with your palms up. Relax your upper body and notice that your low back should begin to get flatter to the floor the longer you are in this position.
HOLD and relax, then repeat on other leg. (Lay in this position for a minimum of 5min and up to 20minutes for each side, left and right)