Leg Raises: First lie flat on the floor, face up. Fully extended your arms along your sides, and place the palms of your hands against the floor, keeping the fingers close together. Then, raise your head off the floor, tucking the chin against the chest. As you do this, lift your legs, knees straight, into a vertical position. If possible, let the legs extend back over the body, toward the head; but do not let the knees bend. Then slowly lower both the head and the legs, knees straight, to the floor. Allow all the muscles to relax, continue breathing in the same rhythm. Breathe in deeply as you lift your legs and breathe out as you lower your legs.