Are You Uncoachable?

The best teacher I ever had was a sociology professor at Haverford College named Mark Gould. I’ll never forget the first day of the first class I took with him. He basically spent 90 minutes scaring the shit out of the two-dozen 18- and 19-year-old students in the...

Why Endurance Training Can’t Be Reduced to a Formula

Recently I tested a prototype of a wearable device that is intended to help runners monitor and control the intensity of their runs. During my back-and-forth email communications with the product’s lead developer, he sent me a link to a study titled “Intensity- and...

The Human Body Is Not a Smartphone

Last week I received an email message from Dawn, a runner who had just purchased The Runner’s Diary, a book I authored back in 2008. Maybe “book” isn’t the right word. As the title suggests, it’s mainly just a training log, but it does offer some training and...

Making Periodization Intuitive

The term periodization refers to the practice of dividing the training process into distinct phases, each of which is defined by a specific purpose and made up of workouts that are intended to fulfill its purpose. Simply put, an athlete who practices periodization...

How to Avoid the Moderate-Intensity Rut as a Trail Runner

Trail running is becoming more and more popular—statistics say so. But I don’t need statistics to know that increasing numbers of runners are taking to the trails. I can tell by the emails I receive from advice-seeking athletes, a rising percentage of which are sent...