Lie on your back holding a stability ball on your tummy.
Bring one leg up to 90 degrees with your opposite leg fully extended on the ground.
Extend above your head the arm opposite to the leg that is extended.
Place the palm of your hand on the ball that is opposite to the leg that is also making contact with the ball.
Tilt your pelvis forwards and backward until you find the neutral position with your spine.
Applying some gentle pressure into the ball with your stationary arm and leg, flex your opposite arm to touch the ball, completing a small sit-up movement.
Ensure your back remains in the same position.
Bring your arms and legs back up to the starting position and repeat with the other pair.
