It is no secret that cyclists are obsessed with numbers. Everything from power output and heart rate, to hydration, blood glucose levels, and sleep tracking. There are a million different devices that ...

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 ...

Are you tracking enough of your fitness metrics yet? No? Great! Here's another one: VO2 max. It's a measurement that's traditionally been used by elite athletes, especially runners and cyclists, but ...

I’ve done enough “real” VO2 max tests—the trips to the lab, the expensive and cumbersome equipment, the brutally exhausting treadmill protocol, and in one case, the puking in the corner ...

When sorting through the features of the latest generation of fitness devices, runners might pause and ask, "Do I need that?" I wondered just that myself this fall, when I noticed that a number of ...

Scientists at the Norwegian University of Science and Technology have developed a handy calculator that quickly works out your fitness age, the Daily Mail reports. It asks seven simple questions about ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Shutterstock VO2 ...

Keep your eye on your cardiorespiratory fitness with this metric Keeping track of VO2 max on your Garmin is a great way to monitor your aerobic fitness and cardiorespiratory efficiency, and viewing ...

VO2 max measures the maximum amount of oxygen your body can use during exercise. It’s become one of the buzziest fitness metrics on social media, with influencers and wearable devices touting it as a ...

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, ...

If you haven’t heard us prattling on about VO2 max by now, we’re here once again to tell you just how important this metric is. Once the preserve of elite performance athletes, VO2 max is increasingly ...