Kneel on the ground and place a Swiss Ball in front of you. Cross your feet in the back. Brace your core as you place your forearms on the Swiss Ball.
Begin the movement by slowly rolling out with the Swiss Ball. Feel the contraction of your core as you move further out.
Once you are fully extended, pause, then slowly roll back up to the starting position. Rely on your core muscles to roll you out and pull you back in.