Insanity

I wear a heart rate monitor and input it add insanity in as a new exercise as they aren't listed in the workout directory, you simply put the name the time length and the number of calories you burn based upon your heart rate. If you don't have a heart rate monitor you should consider getting one because insanity is interval training and you need to keep track of your heart rate though out the workouts, I use the polar ft4 and I find it fantastic