VO2max is the maximum volume of oxygen the body can consume per minute during maximal effort, normalized to bodyweight (ml/kg/min). It's the most-cited measure of aerobic capacity and a strong predictor of endurance-sport performance.
Direct measurement requires a metabolic cart and a graded exercise test to exhaustion — expensive and impractical for most teams. Field-test surrogates (beep test, Yo-Yo IR1, Cooper test, 12-minute run) estimate VO2max via validated equations and are widely used as proxies.
Typical values: elite male endurance athletes 75–85 ml/kg/min, elite female endurance 65–75, NCAA male soccer 55–65, NCAA women's soccer 48–58, recreational adults 35–45.
Where it's used
Endurance-sport benchmarking and prescription, team-sport conditioning evaluation, longitudinal aerobic-fitness tracking.
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