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 ...

"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 ...

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 ...

In the running world, there are many workout options to choose from if you want to get faster – think race-pace repeats, tempo runs, threshold runs and VO2 max efforts. But lots of runners tend to ...

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 ...

Increasing this can boost your brain, decrease anxiety, improve cardiovascular health and more.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." At 76 years old, Jeannie Rice is still setting age group world records and altering what we thought we ...