Maybe your smartwatch has been telling you your VO2 max for a while now, but you’re not sure how accurate it is. Or maybe you’ve recently been targeted by social media ads for fancy running labs ...

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 ...

Until recently, VO2 max testing has been inaccessible to most everyday athletes. Unless you had an in with an exercise physiology lab, you had to rely on back-of-the-envelope calculations or wearable ...

To hit new PRs, you’ll want to keep tabs on all kinds of stats, like distance covered, pace per mile (or interval), max heart rate, hours slept… We could go on. But at the end of the day, there’s one ...