How to perform this stretch?
- Start by lying down with the ball on either side of the spine to target the upper back muscles (see diagrams and video, if unsure)
- Slowly roll up and down in segments from above the heel towards the knee
- If you find a painful area, either stay on that area until the pain lessens or slowly roll over it
- Watch out if the ball slips if it is a smooth surface
Variation: Try doing this with the hips lifted in a "glute bridge" position
