For many, the beep test is seared into memory. And not just the test itself, but the wave of dread that came before hearing that first beep in school physical education (PE) classes. Also known as the ...

If it seems like everyone in your run club is talking about VO2 max these days, we wouldn’t be surprised. This metric—which is essentially a measure of your cardio fitness—is a zeitgeisty topic, ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...