VO2 max is an intimidating word for an easy-to-understand biometric: It’s how well your body uses oxygen when you push ...

Essentially a measure of your cardiovascular fitness or aerobic capacity, your VO2 max is often considered a must-know metric if you’re a runner – especially if you’re looking to improve your running ...

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 ...

Many people run for the endorphins and sense of achievement rather than the statistics. However, for several runners, dialling into fitness metrics is a big part of the process, as it helps to guide ...

Many people enjoy running for the endorphins and sense of achievement rather than the statistics. For several runners, though, taking stock of their fitness metrics is part and parcel of the process, ...

I’m not surprised that Garmin did well, but I am surprised by some of the watches at the bottom of the list. Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal ...