Oblique Quadratus Lumborum

Sit on exercise ball. Walk forward on ball and lie back on ball with shoulders and head hanging off. Switch position of feet by positioning bent leg under extended leg so waist is twisted with hip positioned sideways. Gently hyperextend back to contour of ball. Place hands behind neck or cross arms across chest.

Flex waist to raise upper torso. Return to original position and repeat. Position legs in opposite position and continue.