Start on hands and knees with arms under shoulders and knees under hips, knees abducted hip distance apart. Pelvis and spine neutral. Inhale maintaining this position. Exhale and initiate by rolling ASIS away from front of femurs and sequentially articulate spine into flexion from tailbone to head. Allow scapulae to protract without tensing upper trapezius. Inhale keeping abdominals engaged and expand back of rib cage, keeping head ans shoulders relaxed. Exhale and articulate sequentially spine into slight extension from tailbone to head.