VO2 max is often referred to as a key marker of fitness. It’s the measure of the maximal amount of oxygen your cells can take ...

High-intensity interval training is important, but coming back to your breath can be crucial to helping you train.

VO2 max seems like the biggest buzz word used in the running community right now—but why? What makes that number glaring back at you on your smartwatch so crucial, and why can’t runners stop talking ...

Running to the best of your ability can feel like a numbers game. To hit new PBs, you’re probably under the impression that you should keep tabs on all kinds of ...

Add Yahoo as a preferred source to see more of our stories on Google. If you're an athlete, you've probably heard the recent buzz around VO2 max. Whether you run sprints on the daily or frequent your ...

Improving endurance is a common goal among beginner and competitive runners alike. Seeing progress on a regular basis can make the workout form that much more enjoyable and motivating. As a runner ...

EXPERT ADVICE: What exactly is VO2 max testing? Who needs it? And what are the benefits? Xpress catches up with Sean Simonds, clinic director for Movement for Life Physical Therapy, to find out. Photo ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Whoop, the screenless ...