Introducing the 80/20 Workout Library

Unless you’ve been hermetically siloed within the endurance space for as long as you’ve been exercising, you’ve probably heard of muscle confusion. Popular in the vanity-oriented fitness realm, muscle confusion is the idea that muscles undergo the greatest adaptation...

Should You Train Your DNA or Train for Your Event?

We live in a highly individualistic society, a situation that has both pluses and minuses. On the plus side, our children tend to grow up with a sense of freedom to choose their own path in life. On the minus side, a growing percentage of us are burdened by feelings...

Seiler’s Hierarchy of Endurance Training Needs

If I could clone myself a few times for the sake of taking different paths in life, I would definitely dedicate one of my clones to the pursuit of sports science. This being impossible with current technology, I choose instead to live vicariously through the...

Understanding the Difference Between Rest and Recovery

Recently I received an email message from an athlete who is following one of my online training plans. In it, he asked, “Why do you only have one day off every three weeks?” Although I did not ask the athlete why he asked this question, my assumption was that he was...

Heart Rate Training is Dead, Long Live Heart Rate Training!

I remember my first heart rate monitor. A Polar S720i. It used infrared to download data. Infrared! The first time I wore it, it felt like magic. The device was a key to unlock secrets about my body I could have never observed before. I wore it when I exercised, I...

Why You Shouldn’t Choose a Training Plan Based on a Time Goal

If you’re like many other endurance athletes, you have probably followed a readymade training plan at one time or another. Perhaps you found it in a book, or maybe you purchased it online from a website such as Final Surge or TrainingPeaks. If so, then you know that...