Many people enjoy running for the endorphins and sense of achievement rather than the statistics. For several runners, though, taking stock of their fitness metrics is part and parcel of the process, ...

Hardcore endurance athletes have tracked the metric for decades, but it is increasingly touted as a measure of fitness and ...

VO2 max is an intimidating word for an easy-to-understand biometric: It’s how well your body uses oxygen when you push ...

All you need is a kettlebell. A TikToker has gone viral with his simple fitness hack to run faster, and it actually works. Hermes the Cynic, as he’s known on social media, classifies himself as an ...

VO2 max is the maximum volume of oxygen you can absorb per minute per kilogram of body weight at your peak, and almost every Garmin watch can calculate this figure automatically. We have a dedicated ...

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, ...

At 77 years old, Jeannie Rice is still setting age group world records and altering what we thought we knew about aging and running. She currently owns the world record for every distance between the ...