Stand up straight leaning your back on a wall.
Step your feet forwards, away from the wall.
Place a ball or a large rolled up towel between your knees.
Your knees should remain hips width apart.
Keep your back against the wall whilst you bend your knees, sliding down the wall.
Keep your knees squeezed against the ball as they bend.
Only go as far as you feel able to and then hold this position.
Straighten your knees back to the starting position, keeping the ball between them.
