Exos | Formerly Core Performance

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Core Performance Endurance Book


Core Performance Endurance Book

As the third installment in Mark Verstegen’s Core Performance series, the Endurance book offers a new application of the workout program designed specifically for the endurance athlete and focused intently on the muscles of the core – the shoulders, hips and midsection.

Core Performance Endurance DVD


Core Performance Endurance DVD

Improve your endurance with instructional video featuring Mark Verstegen, exercise programs, and a complete recovery and nutrition program.


adidas® miCoach Pacer

miCoach Pacer listens to your heart, tracks your pace, and gives you real-time audible coaching while you walk, run, or ride.

New Content

Latest Tagged Triathlon


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.

Play Better

3 Tips for Conquering Open Water Swimming

Decorated swimmer Lynne Cox shares her top three tips for swimming better and stronger in open water.


What It’s Like to Survive a Near-Death Cycling Accident

Michael Vitez, author of The Road Back, explores why and how some people manage to survive such trauma.


How to Fight Fatigue During a Race

We asked a few Ironman triathletes how they deal with hitting the proverbial wall, so you can use their insights to power through your next race.


Why Do You Race?

We asked a handful of accomplished endurance athletes what drives them. Use their inspirational words to drive you.