80/20 ENDURANCE BLOG

blog post 85

A High-Mileage Manifesto

By Matt Fitzgerald | December 21, 2022

You’ve probably heard of the book 80/20 Running, perhaps even read it. But did you know that the original working…

blog post 63

Make Sure You’re Tired for Your Next Fitness Test

By Matt Fitzgerald | September 27, 2022

James Spragg is a young South African exercise physiologist who has carved out an interesting niche for his research. It…

blog post 34

All About (Intensity) Balance

By Matt Fitzgerald | February 22, 2022

Billy Sperlich is one of the world’s leading experts in the area of training intensity distribution (TID) in endurance sports.…

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New Study Finds Most Age-Group Triathletes Are Still Stuck in the Moderate-Intensity Rut

By Matt Fitzgerald | August 9, 2021

It’s been nearly a decade since I coined the term “moderate-intensity rut” in reference to the widespread habit among recreational…

Sandor Iharos training

Why It’s Impossible for Your Training to Be Better Than “Good Enough”

By Matt Fitzgerald | January 23, 2021

I’m not a total science geek, but I do take an interest in certain scientific fields, including evolutionary biology. My…

8020 Endurance Hero

How to Set a Good Race Time Goal

By Matt Fitzgerald | June 11, 2018

Many of the posts I write for this blog are inspired by athlete FAQ’s. Well, this is another one. And,…

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