Ultimate Shoulder Stretch September 15, 2014ExercisesSSD Ultimate Shoulder Stretch or Keg stretch. Stick an rolled up towel or foam roller in your upper back/thoracic area and stretch your arms directly overhead. Anchor your hands on a barbell or Kettlebell and pull your upper chest against the anchor to stretch your upper back area. Do not actually attempt to pick up the anchor. Your shoulders are in a very vulnerable position here.