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Sports

Aerobic Capacity

Quick fact

World-class endurance athletes can have a VO2 max above 80 mL/kg/min, while a sedentary person might have only 30-40 mL/kg/min. This difference can represent more than double the oxygen delivery capacity.

Why this is interesting

You're sprinting up a hill, gasping for air. But why do you breathe so hard, and what limits how long you can keep going? The answer lies in your aerobic capacity—the body's maximum ability to use oxygen.