Knowledge Base

Training Concepts

Periodization, polarized training, interval workouts—your performance depends on how you train. Master the key training concepts in endurance sports and you will look at every workout with new eyes.

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An ultra-runner summits a mountain peak with the sun low in the sky behind him

An Ultra-Athlete’s Guide to RPE

An athlete’s rate of perceived exertion, or RPE, is one of the most underappreciated metrics. For ultra-athletes who are closely in touch with their bodies and minds, working with RPE is an essential component to training and racing.

A cyclist dressed in black rides out of the saddle against a black background

The True Definition of Threshold

Your lactate threshold may not be what you think it is. Coach Trevor Connor explores the true definition of this physiological turn point.

Cyclist riding down a tree-lined road

How to Nail Your Next Taper

How long? How much? How many? Tapering can be a dark art, but we’ve got all your questions answered to help deliver you to your next start line ready to go.

Masters triathlete Dede Griesbauer races on a triathlon bike during the Ironman Texas triathlon.

11 // Coaching Masters Athletes

Training mistakes are costly for masters athletes. Coaches who are savvy to aging position their clients for a lifetime of performance.