If the fast group had kept on going for the hour that the slow group was walking, they would have burned more calories. Rev your metabolism with resistance. Losing fat means changing body composition, and nothing goes more to the heart of body composition than resistance training, says Norwood-Keating. It's also a matter of creating more lean tissue, which takes more energy to sustain than fat does. From a power utility point of view, fat is a blighted factory building with a darkened parking lot.
Muscle is the same building blazing with interior light and humming with heavy industrial machinery.
The more lean muscle you have, the more calories you burn even when you're inactive. Work the gut. First, abdominal exercise is part of any overall strength-training routine. Beyond that, firming up the abs lends greater structural support to the back and torso, which improves posture. Plus, stronger gut muscles do a better job of holding the stomach in.