An "easy" workout doesn't mean an ineffective workout. But how do you know how far you can back-off and still make it worthwhile? The CardioCoach app is an excellent portable tool that will help you adjust to changes in your schedule and still coach you through your personal workout zones. Just download the CardioCoach app to your phone and upload your VO2 Max results. You can then access a variety of workouts that will be constructed based on your own personal workout zones. It's that "easy."