“In recent years, it’s come up a lot in the literature as one of the leading indicators of overall health and longevity,” ...

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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.

This easy test can help you get a gauge on your VO2 max—without a watch.

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 ...

Standards is a series explaining various tech protocols, looking at their practical implementation, and where we could find them in devices around us. Fitness bands and watches have thrown around ...

Learn more about this metric and the best training sessions to add to your schedule to boost your cardio fitness.

Apple is rolling out iOS 14.3 and WatchOS 7.2 updates today to users. Along with its Fitness+ service, Apple’s introducing a new notification to indicate your cardio movement is low. To measure your ...

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. Plenty of fitness ...

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 ...