On TikTok, VO2 max is going viral as the key to improving your endurance during a workout. In short, you can think of this metric as the maximum amount of oxygen your body uses during exercise – V ...

VO2 max testing requires a mask to measure oxygen intake and carbon dioxide output to determine your cardiovascular fitness. When you think about how fit you are, you might think about how far you can ...

"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 is something of a numbers game. 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, ...

So news that lying in a hot bath post-run boosts your VO2 max – no exercise required – sets alarm bells ringing. And yet, ...

The burn. The Bane mask. The bleak possibility of being waterboarded by vomit. Whether you’ve wheezed through one first-hand, or cocked a cautious eyebrow from afar, more and more men are learning of ...

Plenty of research touts the importance of cardiorespiratory fitness (CRF)—also known as cardio fitness, cardiovascular endurance, and aerobic fitness—as a health marker, as well as an athletic ...

Aerobic capacity, which is often referred to as VO2 max, is the maximum amount of oxygen your body can use while exercising. VO2 max is an important way to measure your overall fitness and see how ...

Julia Ries Wexler is a writer for Outside Magazine, National Geographic, SELF Magazine, The Cut, Condé Nast Traveler, among other national media outlets. You can check out some of her work (and ...