Aerobic fitness definition

The ability and efficiency of your lungs, heart, and blood vessels to take in oxygen during exercise, deliver it to your muscles, and the ability of your muscles to use the oxygen.

Aerobic fitness is quantified as your maximal oxygen uptake. The higher this number, the easier it is for you to complete exercise for a sustained period of time.

Aerobic fitness is one of five components of health-related fitness and may also be called: aerobic capacity, cardiovascular fitness, cardiorespiratory fitness or endurance.

Related terms: aerobic, aerobic exercise

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