Wake up the abs! Begin to curl your upper body up, keeping your pelvic bones nice and solid. Easy to do on an exhale. The exhale sends your ribs down. The internal obliques insert onto the ribcage and therefore assist in drawing the ribs down towards the pelvis. Draw in the abdominals. It should not feel like you are gripping or staying in one place. Pull the stretchband out sideway abducting at the shoulder at the top of the movement.