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Person ultrarunning across a snowy mountain

Exercise in the Cold Pathway

Exercising in cold weather has a significant impact on our physiology—from breathing to metabolism to performance. In this Pathway, you’ll learn about the physiological and psychological effects of cold from many experts.

A cyclist rides a bicycle near Boulder Reservoir in Niwot with trees and Haystack Mountain

Cycling Base Training Pathway

The concept of base training has been a part of endurance training for decades. Laying a foundation of fitness early in the season sets the stage for success later on. With the help of Joe Friel, Dr. Stephen Seiler, and Dr. Andy Pruitt, we explore the how and why of this fundamental aspect of endurance training.