What is VO2 Max?

VO2 max is the maximum amount of oxygen your body can utilize during intense physical exercise. It's a critical measure of cardiovascular fitness and endurance. A higher VO2 max means your heart, lungs, and muscles are more efficient at delivering and using oxygen during exercise, which generally indicates better overall fitness.

VO2 max is expressed in milliliters of oxygen used per minute, per kilogram of body weight (ml/kg/min). The higher your VO2 max, the better your stamina and fitness level.