There are a few things you need to get lean: a high-burn workout that will work large muscle groups, force you to use up a lot of oxygen and get you into the sweatzone fast. Exercises that keep on applying a load to your muscles. And a combination that forces you to recruit a large number of muscle groups. Lean and Mean combines all that. You now just need to power through it. Maintain perfect form.
Extra Credit: 1 minute rest between sets.
