I have, at my disposal, at least nine different devices that can estimate my cardio fitness. They all put it in terms of a number scientists call VO2max. But the only way to find your actual VO2max is ...

So you just got your VO2 max number by charting it on your watch, estimating your number at home, or even heading to a lab for a more formal test … but now what? You have that shiny number in hand, ...

You should want to know your VO2 max for many reasons. Athletes who seek optimal performance by taking part in competitions learn valuable information from tests that measure your maximum heart rate, ...

a year, an exercise physiologist I know kept offering to do a VO2 max test on me. For more than a year, I’d been resisting it. Not because it’s not important. Plenty of trends have come and gone in my ...

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

You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. I'm what I call an "on-paper" athlete. I've been running for a decade, I regularly take weightlifting ...

Your browser does not support the <audio> element. Improvements are nonetheless possible. Former couch potatoes can see their VO 2 max increase by 10-30% with regular ...

A.V. Hill was a 4:45 miler and already had a Nobel Prize for work in muscle physiology when he and Lupton began studying VO2 max. The experiments involved subjects running around Hill’s back garden in ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Whoop, the screenless ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." FOR ABOUT A a year, an exercise physiologist I know kept offering to do a VO2 max test on me. For more ...