Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. A.V. Hill was a 4:45 miler and ...

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 ...

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 ...

For those unfamiliar, VO2 max might sound like the latest performance-enhancing supplement, but it’s actually the term used to describe your body’s maximum oxygen uptake during aerobic exercise. If ...

FORT CARSON, Colo. -- A Soldier lifts his shirt up to put on the heart rate monitor, steps on the treadmill, puts on the VO2 Max mask and starts to walk, eventually getting to a slow run to reach 85 ...

Plenty of fitness trackers these days will tell you your VO2max, sometimes referring to it as a “cardio fitness” score or telling you that you’re fitter than a certain percentage of the population.

'Longevity workouts' and the best types of training to increase your lifespan seem to have gained more momentum in recent years. With the likes of billionaire Bryan Johnson experimenting with various ...