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

After running for over a decade, I wanted to see how healthy my heart is. I got an active metabolic assessment at Life Time, measuring my VO2 max and heart rate. I also learned which running speeds ...

On TikTok, VO2 max is going viral as the key to improving your endurance during a workout. In short, you can think of this metric as the maximum amount of oxygen your body uses during exercise – V ...

Your watch’s VO2 max isn’t perfect, but you can improve its accuracy with better data and heart-rate tracking.

Studies consistently show that high-intensity interval training is one of the fastest ways to raise VO₂ max. Short bursts of ...

By most measures, Norwegian triathlete Kristian Blummenfelt is the standard of peak performance in athletics. He won the gold ...