Do Lipotropic Fat Burning Injections Work Tossing a single match on a pile of wood won't ignite a strong flame. An entire box of matches, however? That's the start of a kick-ass bonfire. This is the sort of fiery result that your internal fat burners will get from the fast-paced intervals in this workout—a series of high-powered, total-body exercises. "This heart-pumping circuit packs in explosive movements in multiple directions, which activates your fast-twitch muscle fibers," says certified strength and conditioning specialist B.J. Gaddour, CEO of StreamFit.com, who created this workout. Why that matters: Fast-twitch fibers burn calories at a faster rate than slow-twitch fibers; add in the fact that you're engaging nearly every major muscle group, and the result is a supercharged metabolism during and after your workout. Perform each exercise as a one-minute interval: Do as many reps as you can in 30 seconds, then rest for 30
