When runners talk physiology, two terms tend to dominate the conversation: VO2 max and lactate threshold. Although the two metrics are related, they are not the same – and they shape performance in ...

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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Until recently, VO2 max testing has been inaccessible to most everyday athletes. Unless you had an in ...

This key metric reflects how much oxygen your body uses during a workout. But it isn’t just for athletes—your VO2 max is a critical indicator for your future health and longevity. Understanding your ...

VO2 max is an intimidating word for an easy-to-understand biometric: It’s how well your body uses oxygen when you push yourself. Short for “maximal oxygen uptake,” it’s been the gold standard for ...

See how your cardiovascular fitness stacks up against your running peers ...

Improving your numbers doesn’t have to mean pounding the pavement. VO2 max measures maximum oxygen use during intense exercise and predicts longevity. Low-impact modalities like cycling, rowing, ...