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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.

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

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 ...

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 ...

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 runners talk physiology, two terms tend to dominate the conversation: VO2 max and lactate threshold. Although the two metrics are related, they are not the same – and they shape performance in ...

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 ...