OPEX Fitness: Training OPEX Sustain on the AirRunner

In this video, James Fitzgerald teaches how to train the aerobic (OPEX Sustain) energy system with the help of the AirRunner.

OPEX Fitness is the education provider for coaches seeking career success, longevity, and fulfillment. Our mission is to bring honor back to the coaching profession. Through our coaching education and our Gym Licensing Program, we provide coaches with the tools needed to professionalize their passion.

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