This article is purely theoretical. Some readers will think that the theory is obvious on its face, and others will think that it's wrong. The joy of talking about training theory at the intersection ...

If you think of ways to measure your overall health, certain benchmarks likely come to mind. The bloodwork you get done at your annual physical, maybe. Your body mass index. Perhaps how much you can ...

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

Colvin says to measure VO2 max you’ll need to be in an exercise medicine lab or a doctor’s office that offers the test. The ...

For general fitness and health, men should aim for age-adjusted VO2 max scores that put them above average. This will ensure you are maximizing reductions in all-cause mortality from having a higher ...

If it seems like everyone in your run club is talking about VO2 max these days, we wouldn’t be surprised. This metric—which is essentially a measure of your cardio fitness—is a zeitgeisty topic, ...

On TikTok, VO2 max is going viral as the key to improving your endurance during a workout. In short, you can think of this metric as the maximum amount of oxygen your body uses during exercise – V ...

A higher VO2 max translates directly into enhanced physical performance across various activities. This improved oxygen utilization capacity manifests in multiple ways. Athletes with higher VO2 max ...

While VO2 max estimates were once exclusively reserved for lab settings and high-end sports watches, Oura has developed a way to give users insight into their cardiorespiratory fitness. Dubbed ‘Cardio ...

Whoop, the screenless watchband-like wearable that beat out Oura in my non-watch fitness tracker showdown, has just added a VO2 max feature to its app. Now, just like Garmin, Apple Watch, and others, ...

Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. A.V. Hill was a 4:45 miler and ...