Lie on your back with a foam roller placed horizontally under your upper back, legs bent and buttocks slightly lifted off the floor. Hands placed behind your head and upper back slightly rounded.
Straighten your upper back (thoracic spine) against the roller when exhaling. Return to the starting position when inhaling. Go through the whole thoracic spine vertebrae-by-vertebrae by moving the roll up and down the upper back. Keep your chin tucked in and do not let your lower back arch.
