When it comes to understanding your fitness and overall health, VO2 max is often heralded as the most important metric. So if you notice a decline in your VO2 max, it’s only natural to be ...

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 ...

Running at the best of your ability is somewhat of a numbers game. To hit new PBs, you’ll want to keep tabs on all kinds of stats, like distance covered, pace per mile (or interval), max heart rate, ...