Stand with your knees bent, legs hip-width apart, hands on thighs, and rest your upper-body weight on your arms. Flatten your back, draw your transverse in to the fifth floor and pull your pubic bone toward your navel, pointing your tailbone down [shown].
Hold for a count of 5, then return to the flat-back position. Do 10 tilts.
Benefits: Strengthens abdominals and stretches lower back.