The Iso-Bow Power Pump Method is a comprehensive muscle-building program created by Marlon Birch, Bullworker's strength training advisor and the world's leading self resistance and fitness expert.This book is the ideal muscle-sculpting tool for men and women to get into their best shape ever. All the exercise programs will chisel your body far better and faster than dumbbells, and will re-shape and transform your entire body. Build muscle faster than ever with the mix of self resistance and the power of Isometrics. These plans will fit into your life to last a lifetime. Get muscle growth with higher rep ranges all without overtaxing the joints with the POWER of the Iso-Bow. All in 13 weeks