Double Arm Overhead Extension April 14, 2008 by Cathe Friedrich Deazie doing Double Arm Overhead Extensions during STS Meso #2 Chest, Shoulders and Triceps. Categories: Behind The Scenes, Blog, STS, STS Mesocycle #2Tags: cathe, Double Arm Overhead Extensions, exercise dvd, exercise dvds, fitness dvd, fitness dvds, hypertrophy, mesocycle 2, STS, workout dvd, workout dvds Leave a Comment Related PostsAre Green Powders a Healthy Substitute for Vegetables?January 5, 2020How Much Protein Do You Need to Build Muscle?May 1, 2011Bigorexia: When Building Muscle Becomes an ObsessionJanuary 29, 2012