Exos | Formerly Core Performance

Set Your Fitness Goals. We'll Help You Achieve Them.

Join for free and you'll gain instant access to our tracking and reporting tools, expert coaching tips, and a free trial to our personalized training and nutrition programs.



The New Science of Cardio

Forget everything you know about traditional cardio work. Energy Systems Development, or ESD, is a more effective way to train your body.


Improve Your Endurance

If you're a new runner, this training plan will help get you started.


The Metabolism-Boosting Workout

Rev your fat-burning engine with this challenging training session.