Why does walking work so well? It appears to help reduce deep belly fat (called visceral fat) first, explains Tim Church, MD, MPH, PhD, of Pennington Biomedical Research Center, Louisiana State University. “If you exercise enough to lose 10% of your body fat, you may actually reduce visceral fat by 30%,” says Church. All walking burns belly fat, but for best results, crank up your weekly MET (metabolic equivalent) hours–the number of calories you burn. “Shaking up the intensity with on-again, off-again bursts of energy will give you the most time-efficient, calorie-burning workout possible,” says exercise physiologist Peggy Pletcher of Source Endurance, an online coaching service based in Austin, TX.

The Experts

Exercise physiologist Peggy Pletcher, consultant for Source Endurance, an online fitness coaching service, helped design the walking plans. Celebrity trainer Valerie Waters developed the firming moves.

What to Do

6 or 7 days a week: Do one of the Flat Belly Walks, following our pace guidelines, below. If your goal is to whittle your waistline with the bare minimum exercise, follow Plan 1. If you have more time and want to rev up your results, dive into Plan 2. To shed inches all over, go with Plan 3.

Find the Right Pace

Use a scale of 1 to 10. It’s the best way to determine how hard you should be working, with 1 being very easy and 10 an all-out effort. If you’re on a treadmill, try our suggested speeds, but adjust the speed according to your effort level. Warm-up/cool-down: 2 to 3 (treadmill at 3 mph). You can chat with ease. Brisk pace: 4 to 5 (3.5 to 3.8 mph). Your breathing is pleasantly harder. Can still talk, but with pauses. Push pace: 6 to 7 (4 mph). Some huffing and puffing. One- to two-word replies. Power pace: 8 to 9 (4.2 to 4.5 mph or uphill at 3.5 mph). No talking possible.

3 Flat Belly Walks

Plan 1: Speedy Waist Whittler

Time: 20 minutes a day, 7 days a week

Start: Warm-up3:00 Brisk pace6:00 Push pace9:00 Brisk12:00 Power pace13:00 Push15:00 Brisk18:00 Cool-down20:00 Finish

Total calories burned: About 100 (based on a 150-pound person)

Plan 2: Lose-a-Size Tummy Trimmer

Time: 40 minutes, 6 days a week

Start: Warm-up3:00 Brisk pace6:00 Push pace13:00 Power Pace15:00 Repeat minutes 3 through 15 (brisk walk for 3 minutes, push for 7 minutes, power for 2 minutes)27:00 Brisk37:00 Cool-down40:00 Finish

Total calories burned: About 200 (based on a 150-pound person)

Plan 3: Total-Body Fat Blaster

Time: 60 minutes, 6 days a week Note: If you’re doing this workout indoors on a treadmill, start with a 3% incline for the hills, working up to 5%. If you’re outside, try to find a loop with two hills about midway through that will take you about 5 to 6 minutes to climb.

Start: Warm-up3:00 Brisk pace5:00 Push pace20:00 Brisk22:00 Uphill Brisk28:00 Brisk32:00 Uphill Brisk38:00 Brisk42:00 Push57:00 Cool-down60:00 Finish

Total calories burned: About 330 (based on a 150-pound person)

Flat Belly Diet   Walk Off Your Belly Fat - 5