Model America Champion Mark Robinson continues his body transformation. The 5'10", 185 lbs, Australian sports model and trainer says, "I'm currently doing high intensity interval training (HIIT) to stay shredded throughout the holiday season. It's quick, efficient and I get a whole body workout done in 30 minutes. It's very intense, lots of plyometric jumps, abdominal wood chops and high rep pulls ups, dips, push-ups and burpees! It's working well to keep me in shape ready for model work and photo shoots."