Walk Off 10 Pounds in 3 Weeks

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We love walking, too

By Su Reid-St. John

We tapped top Los Angeles–based trainer and star of more than 40 fitness DVDs, Keli Roberts, to create the ultimate ditch-the-flab walking routine that gives big results in little time. "It’s the most effective way to train because it targets your whole body," Roberts says. "To get the most out of the plan walk tall with your shoulders down and back, and keep some tightness in your core."

Aim for a total of five workouts per week: Do the Strength-Cardio Circuit two times (but not on consecutive days), Speed-Burst Intervals one to two times, and Long-Hill Intervals one to two times.

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