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 ...

Add Yahoo as a preferred source to see more of our stories on Google. VO2 max testing requires a mask to measure oxygen intake and carbon dioxide output to determine your cardiovascular fitness.

If you own a smartwatch or wearable fitness tracker, you’ve likely caught a glimpse of your VO2 max, the maximum amount of oxygen your body can utilize during intense exercise. For endurance athletes, ...

High-intensity interval training is important, but coming back to your breath can be crucial to helping you train.

If you wear a running watch, you might have noticed a function that estimates your VO2 max score. If your running is in a good place, you might have seen this number rise over the past few months or ...

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 ...

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.

A higher VO2 max translates directly into enhanced physical performance across various activities. This improved oxygen utilization capacity manifests in multiple ways. Athletes with higher VO2 max ...

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 ...

When you think about how fit you are, you might think about how far you can run or how many push-ups you can do. Or maybe you think about health metrics like your resting heart rate or heart rate ...