Boost your Calorie Burn

To boost your calorie burn, do this 25-minute cardio workout, developed by trainer Tim Adams, up to five days per week. Walk, run, swim or bike. It's your choice. By day 6, you'll look and feel slimmer!

Time	Phase	Perceived level of exertion*
3 minutes	warm up	3
30 seconds	sprint	9
90 seconds	recover	4
30 seconds	sprint	9
90 seconds	recover	4
30 seconds	sprint	9
90 seconds	recover	4
30 seconds	sprint	9
90 seconds	recover	4
30 seconds	sprint	9
2 minutes	recover	3
30 seconds	sprint	9
90 seconds	recover	4
30 seconds	sprint	9
90 seconds	recover	4
30 seconds	sprint	9
90 seconds	recover	4
30 seconds	sprint	9
5 minutes	cool down	3

*Rate your intensity on a scale of 1 to 10. One is about the effort it takes to raise a glass of wine to your lips. A 10 is a "Whoa, Nelly! I can hardly speak" effort.