Super heavyweight bodybuilder Zin Croon does on arm biceps curls. Note the freaky "twin peaks" on both his biceps and his deltoids. Croon, who competed in the 2008 NPC USA Bodybuilding Championships, will be one >
This video is from ShapeFit.com's weight training workouts video series. The video provides different exercises to target specific muscle groups so you can gain lean muscle mass and increase strength levels.>
