The Ultimate VRT Mega Pump  Bodybuilding Training System
Gregory Mangan holds a baccalaureate degree in the Biological Sciences from the University of Wisconsin. CEO of VRT Inc. He has done extensive research and experimentation with exercise physiology and visualization techniques.  He developed and perfected the concept of VRT after years of experimentation with isometrics and isotonic weight training exercises.Greg Mangan is launching his soon to be Released Advanced VRT Manual.