Heading out the door? Read this article on the new Outside+ app available now on iOS devices for members! Download the app.
Hold a light band in both hands directly in front of you with your arms fully extended and shoulder-width apart. Make sure there’s no slack in the band in the start position. Contract your back and posterior shoulder muscles to pull your arms out to the sides and back. When your arms are straight out to your sides, squeeze your shoulder blades together for maximum contraction, then return to the start position under control.