Shoulder Workout - Maintain Muscle and Get Cardio Benefits with Supersets

Less than 3 weeks out from the Arnold Classic South Africa! Thanks for watching! Please subscribe :) BUSINESS CONTACT | erin@erinstern.com WEBSITE | http://www.erinstern.com INSTAGRAM |   / erinstern5   TWITTER |   / erinfast   FACEBOOK |   / fiterin   Train hard, y'all!