Oblique Lateral Tilt

Sit centrally on a correct sized Swiss ball; with both feet flat on the floor, knees shoulder width apart.

Keep your arms out to your side whist you contract your abs and lower back / buttock muscles to fix your neutral starting position.

Inhale and slowly relax your abs, allowing your buttocks to roll across the ball, out to one side.

Exhale and contract your abs, back to your starting position, prior to repeating the movement again, working one side at a time.

Aim for a slow tilt to the side every 5 - 8 seconds, focusing on your breathing and contracting the muscles being worked, ideally holding in the outer phase for 1 - 2 seconds.

Beginners aim to work each side for 30 - 60 seconds.

Intermediates aim to work each side for 1 - 2 minutes.

Advanced, work each side for 1 - 2 minutes, with your arms crossed over your chest.

This exercise can be made harder by holding either a medicine ball, or suitable weight across your chest. Persons with suitable abdominal strength should only perform this method.