This involves a cardiopulmonary exercise test (CPET), where you wear a mask and heart rate monitor while running on a ...

And one number tends to come up time and time again in conversations about running ability: VO2 max. A measurement of the maximum amount of oxygen your body can use when you’re pushing yourself ...

Whoop has introduced VO2 max estimation, giving users access to one of the most important markers for assessing cardiovascular fitness and aerobic endurance. The feature is now available to Whoop ...

The endurance athlete’s version of that dictum might be: everyone has a great VO2 max and an efficient running stride until they’ve run 20 miles. How you fare in those final miles depends ...

New perk: Easily find new routes and hidden gems, upcoming running events ... Both of them rely on VO2 max as a gold-standard objective measure of aerobic fitness, rather than trying to estimate ...