Start with supine with upper body flexed off mat. Imprinted position. Legs tabletop. Hands behind head, scapulae stabilized. To prepare, inhale, then exhale and extend one leg as low as imprintcan be maintained, simultaneously rotate upper body toward flexed knee. Inhale maintaining spinal flexion as spine returns to center and legs begin to switch. Exhale and extend other leg and rotate upper body to opposite side. Inhale maintaining spinal flexion as spine returns to center and legs begin to switch.