The largest amount of oxygen you can consume and use to produce energy during maximal or very intense exercise.
This amount is expressed relative to your body weight as the amount of oxygen you can use per kilogram of body weight per minute of exercise (ml/kg/min).
Maximal oxygen uptake is considered to be a measure of your aerobic fitness level and can be estimated with exercise tests that don’t require a maximal effort.
Maximal oxygen uptake may also be called maximal oxygen consumption, and VO2 max.
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