Ah, intervals — just about the most effective calorie - burning type of workout out there. (health.com)
Do lots of cardio workouts at the end of each workout for 30 - 40 minutes, and workouts that get your heart rate up to keep the calories burning! (nowloss.com)
It's always a good idea to take some short walks in the beginning, and gradually increase the intensity of your workout routines. (fitnessandpower.com)