Ever wish you could breathe easier and sustain more intensity mid-workout? You may have overheard the term "VO2 max" at the ...

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 ...

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

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. VO2 max measures how much ...

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