In a standing or seated position, roll the shoulders back and down (as if to put the shoulder blades in your back pockets), this is called ‘scapular retraction.
Next, bend your elbows to 90 degrees and loop the Thera-band around your hands.
While keeping the elbows stationary near your side, externally rotate to pull your hands apart.
This can be done with the palms facing each other, or facing the ceiling.
Repeat for 1-2 minutes