carres1973
Cathlete
Forgive my lack of knowledge on this one . .
who is Coach Sean?
He is the creator of the Cardio Coach workouts. They are audio-guided mp3 workouts for use on any cardio machine. They use perceived exertion or max heart rate percentage so that you reach different intensity levels in training. They push you beyond that "comfort zone" most of us have when on treadmills, elipticals, etc. You can read more at www.cardiocoach.com.
Carrie