
How to Administer and Analyze a Heart Rate Drift Test
Heart Rate Drift Test This test has become our go-to test for all our coached athletes. We like it…

Talking Health, Performance, and Longevity, with Jesse Charles, M.D
Scott Johnston is joined by Doctor Jesse Charles, M.D. Jesse is a rural medical doctor and longtime adherent to the…

Nose in a Day in the Time of COVID-19
Our Nose in a Day project wasn’t supposed to take so long. COVID closures, issues with training, the California wildfires—nothing…

Breath Intensity Monitoring Physiology
In this article about the physiology of intensity monitoring, we define terms and explain the underlying metabolic processes that determine…

Three Purchases Guaranteed to Improve Your Climbing
Ultimately, climbing in all forms combines fitness, skill, and judgment in varying ways dependent on the climb and conditions on…

Kilian Jornet on Cho Oyu and Everest
-by Kilian Jornet In spring 2017 Emelie Forsberg and I traveled to Tibet to attempt to climb Cho Oyu and…

Why Miles Matter in Running
Historically, runners have always spoken about and compared their training in terms of “mileage.” Counting miles alone seems a rather…

30/30 Interval Training and the Need For Speed
Many athletes I work with throughout the year target long-duration events: high-altitude climbs, ultramarathons, and big ski tours. As avid…

How to Maximize Your Fitness: Duration vs. High-Intensity Training
A common refrain we hear from amateur athletes is that they do not have time for high volumes of training.…