Jillian Michaels, the trainer from NBC's The Biggest Loser and self-proclaimed "TV's toughest fitness guru," runs through circuit training like a drill sergeant on caffeine. Her theory is to keep moving in between exercises to burn twice as many calories, so she cycles her team through sumo squats, mountain climbers, jump ropes, shoulder raises and bicycle moves without taking a breath. If she doesn't think one of her comrades is picking up his knees high enough, she makes everyone do 30 more, with a sadistic grin. As a result, you can almost literally watch the muscle burn. Michaels' Shape-Up Front DVD works out the chest, shoulders, triceps and quads. It also requires two props: a bench-style exercise step and light dumbbells. The DVD features include printable diet/exercise logs, nutrition tips and recipes. Despite a lower-level option, it isn't for anyone looking for a low-impact aerobic workout.

Shape Up -- Front is the first of five fabulous DVDs in the Jillian Michaels' new fitness collection, The Biggest Winner, How to Win by Losing. Shape Up -- Front gets your body moving and your blood flowing with a lower and upper body workout to make your body burn twice as many calories - so you'll melt off the fat and lose the weight. You can win by losing with Jillian Michaels, TV's toughest fitness trainer and life coach.