Hardcore endurance athletes have tracked the metric for decades, but it is increasingly touted as a measure of fitness and health for the average person.

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 ...

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 ...

Use a watch and see how far you can run in 12 minutes on a flat surface (ideally, a track), maintaining as steady a pace as possible while covering as much distance as possible. Then plug your result ...

Your VO2 max—a measure of strength—can tell you a lot about how you’re aging. Here’s how to calculate it without going to a lab.

"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 ...

After running for over a decade, I wanted to see how healthy my heart is. I got an active metabolic assessment at Life Time, measuring my VO2 max and heart rate. I also learned which running speeds ...

VO2 max? Mile time? Experts break down the most common health metrics and reveal which ones actually best reflect on your ...

Dr. Peter Attia says longevity is about living longer and improving your quality of life — and intense exercise is part of the way to achieve it. Here's how to test your own fitness level.