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How to Get Six-Pack Abs

Don't target your abs to lose fat

Back in 2002, we reported that it would take 250,000 crunches to burn a pound of fat, according to estimates from University of Virginia scientists. We're pretty sure those researchers published that statistic to make a point. But after almost a decade, the point still may not have hit home. "I'm amazed at the number of people who think that simply doing ab exercises will make their belly disappear," says Rasmussen. "That is probably the least efficient way to reveal a six-pack."

Do work every single muscle

"Muscle is your body's primary fat burner," says Rasmussen. Your muscles require energy to contract, which is why you burn calories when you exercise. But resistance training, unlike running or cycling, also causes a significant amount of damage to your muscle fibers. And that's a good thing. "Your body has to expend energy to repair and upgrade those fibers after your workout," says Rasmussen. "And a single total-body weight-training session can boost your metabolism for up to 2 days."

Target 300 muscles in just three exercises.

So you shouldn't neglect a single inch of your body. That goes double for the legs, a body part that plenty of men either train just once a week or simply ignore. Case in point: Syracuse University researchers determined that people burned more calories the day after a lower-body resistance session than the day after they worked their upper bodies. Why? Because your lower half houses more muscle. The upshot: "A busy guy's smartest approach is to train his entire body every other day," says Rasmussen. "That allows you to elevate your metabolism maximally all week long, even though you're working out only 3 or 4 days a week."

NEXT: It's Not About Crunches >>

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