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 ...

First, it helps to understand the difference between the two common ways physiologists report VO2 max. Relative VO2 max takes ...

Researchers question how relative VO2 max is calculated and share why your watch’s number may not tell the full story about ...

On TikTok, VO2 max is going viral as the key to improving your endurance during a workout, but what exactly does it measure? In short, you can think of this metric as the maximum amount of oxygen your ...

Setting a new personal max is a great way to chart your progress toward your fitness goals—so what’s the easiest way to do that? One useful step is to improve VO2 max, which is a measure of how much ...

VO2 max measures how much oxygen your body uses during hard exercise. A higher VO2 max improves endurance and longevity. Any form of aerobic exercise—such as walking, cycling, or swimming—will ...

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 ...