Sit upright on a stability ball with your hands on your hips and your feet flat on the floor.
Begin by bending over and down into a slumped-over position with your body weight settled down through your tail bone.
Gradually roll yourself upwards from your tail bone until your weight is through your seat bones.
Lift your head up and look straight ahead.
Roll back down in to the slumped position again, keeping your weight settled down through your tail bone and then repeat the movement upwards, sitting as tall as you can through your seat bones.
From this position, roll slightly back until your weight is centrally through your pelvis and your lower back has a very slight arch to it.
At the end of the movement your shoulders should be pulled back and down and your head upright looking straight ahead.
This is the pelvic neutral position.
