TREELINE BLOG

The implicit assumption is that all of those mitochondria are created equal. That’s where a new paper by Mikael Flockhart and colleagues at the Swedish School of Sports and Health Science in Stockholm picks up. If not all mitochondria are the same, then what exactly do the bad ones look like, and how do we avoid them?

Super shoes have taken over elite road and tracking running in the decade since they first emerged with Nike’s invention of the Vaporfly 4%. One category of runner that hasn’t gotten the same boost that everyone else got when super shoes appeared: trail runners. Research on trail running can be hard to do. Simulating rock and switchbacks on a treadmill in a laboratory poses some readily apparent challenges. Two recent studies provide some answers though.

Early in my coaching career, I came across this idea that has sort of lurked in the shadows of the coaching world for decades: while science is humming along providing rigorous data on what will move the needle on an athlete’s performance, coaches are the innovators. The narrative goes “Science will likely take 10-20 more years to explain why the practices coaches are using today are effective.” The first 2 months of my masters work involved recalibrating my understanding of

One of the things that drove me to coaching years ago was how the learning process has no end. New ideas, perspectives, and data are always emerging. Along that grain, I know it's been a good year when I feel like I see the world in a slightly different light than when the year started. I found that these titles added perspective. Perhaps next year one or two of them can widen yours as well. Here's our 2025 book list.

What you should know and how to achieve weight loss that serves your ultimate goal.

Developing fitness is one part of achieving big things, but developing these skills might matter even more.

What athletes need to know about the new ingredients in the Awesome Sauce energy gel by Spring Energy.

An explanation of how much road running and trail running fitness translate to one another.

Understanding the importance of long runs, avoiding misconceptions, and training strategies for long distance races.

If you’ve struggled to create a strength training habit because you’re not sure what you stand to gain from it, this article is for you.

A comprehensive guide to fueling your best long distance running performances.

How endurance athletes can avoid performance plateaus and love their sport more.

What are the strengths and limitations to evidence-based practices in sport? In a recent blog post, Co-founder of 80/20 Endurance, Matt...

How is it that endurance athletes get faster and go farther? Many of us are familiar with the primary building blocks of an endurance...