The USA's top bodybuilders converge in Las Vegas for an unforgettable weekend of non-stop muscular competition! USAMuscle Video is there to bring you exclusive and all-access video coverage of one of the year's most highly-anticipated contests. This Pump Room Part 1 video features bantamweight, lightweight and welterweight bodybuilders pumping up, oiling down and practicing their poses before hitting the stage. Filled with mind-blowing close-ups! This video is your backstage pass to all the muscle action! • 1 hour 26 minutes