Katie Chin with Infinite Labs demonstrates Back Exercises.
Home / Workout & Training / NPC Physique Competitor Katie Chin Favorite Back ExercisesFebruary 10, 2015 Infinite Labs Katie Chin with Infinite Labs demonstrates Back Exercises. Share Opens in a new window. Tweet Opens in a new window. Pin it Opens in a new window. Email Opens in a new window. Back to Workout & Training NPC Competitor Kelly Diffenderfer Calves Exercises Demonstration Kelly Diffenderfer Shoulder (Side-Laterals) Exercises Leave a commentPlease note, comments need to be approved before they are published. Name Email Comment Post comment This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.