One-Off Workout: The Absolute Mass Builder

Some may have set their resolutions to lose a few pounds, but others are looking to take advantage of the bundled-up winter months for packing on more mass for their big reveal in summer 2013. Adam Von Rothfelder, C.S.C.S., owner of Drench Fitness boutique in Milwaukee, Wisconsin and training correspondent to HUMANFITPROJECT lays out an upper body routine that will pack mass on even the hardest of hardgainers.