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The 20-Minute, 300-Calorie Treadmill Cardio Challenge

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20 Minutes to a Better Body

To get your best body in less time, try this 20-minute run-walk from Aundrea Hasselbach, founder of tread20.com. You'll blast fat and calories and tone your lower body.

Minutes: 0:00-3:00
Miles Per Hour: 3.0, Incline: 1

Minutes: 3:00-3:30
MPH: 3.5, Incline: 2

Minutes: 3:30-4:00
MPH: 3.5, Incline: 4

Minutes: 4:00-4:30
MPH: 3.5, Incline: 6

Minutes: 4:30-5:00
MPH: 3.5, Incline: 7

Minutes: 5:00-6:00
MPH: 4.0, Incline: 1

Minutes: 7:00-7:30
MPH: 4.5, Incline: 2

Minutes: 7:30-8:00
MPH: 4.5, Incline: 4

Minutes: 8:00-8:30
MPH: 4.5, Incline: 6

Minutes: 8:30-9:00
MPH: 4.5, Incline: 7

Minutes: 9:00-10:00
MPH: 3.5, Incline: 1

Minutes: 10:00-11:00
MPH: 6.0, Incline: 1

Minutes: 11:00-12:00
MPH: 3.5, Incline: 1

Minutes: 12:00-12:30
MPH: 5.0, Incline: 2

Minutes: 12:30-13:00
MPH: 5.0, Incline: 4

Minutes: 13:00-13:30
MPH: 5.0, Incline: 6

Minutes: 13:30-14:00
MPH: 5.0, Incline: 7

Minutes: 14:00-16:00
MPH: 3.5, Incline: 1

Minutes: 16:00-17:00
MPH: 6.0, Incline: 1

Minutes: 17:00-20:00
MPH: 3.0, Incline: 1