VO2 max measures how well this entire system works together at its peak. Like a car's horsepower rating, it tells you the upper limit of your body's aerobic engine. Exercise scientists consider it ...

In short, you can think of this metric as the maximum amount of oxygen your body uses during exercise – V stands for volume, ...

And there’s no need to commit to an hour long class every time – a different study published in Medicine & Science (2012) found that short bursts of intense cycling were as effective, if not more so, ...

VO2 max is among the most elusive terms in fitness. You may have heard of it, as it’s often heralded as the number that defines your cardiovascular fitness.