Place the band around your wrists.
Stand up with a slight bend in your knees. Activate your core.
Bring both hands over your head, straighten your arms and pull your wrists out until you feel a stretch in the band. Now bring your hands down by squeezing your shoulder blades together and by pulling your elbows into a 90 degree angle at shoulder height. Slowly return to starting position. Repeat for 10 – 15 times.
Try to pull through your upper and middle back and avoid arching your back. Also, try to keep your knees bent during the entire exercise.
If you are able to do more than 10-15 reps, change to a heavier band.