Seated Upper Back Extension Exercise

This Seated Upper Back Extension mobilization is a great exercise to get a stiff upper back moving, all you need is a chair!

Sit on a chair with your fingers clasped behind your neck and elbows together in front of you.
First, slump then lean the affected part of the thoracic spine against the back of the chair so that the chair supports the lower of the vertebrae to be mobilized.
Slowly relax backwards over the edge of the chair as far as you can comfortably stretch. Keep your elbows close together and try not to arch the low back.
Relax and repeat.