Place a foam roller on the floor length ways.
Lie onto the foam roller with the roller running down the centre of your spine.
The roller should ideally be long enough to support your head all the way down to your pelvis.
If it is too far to rest your head back you may wish to place a pillow between your head and the roller.
Have your knees bent, feet flat on the floor and legs slightly wider than hips width for stability.
Ensure your lumbar spine is in a neutral position with a slight arch in your lower back.
Hold this position.