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Which of the following components of fitness is defined as the body's ability to sustain prolonged exercise ?

  • A.Body composition
  • B.Flexibility
  • C.Agility
  • D.Cardiorespiratory endurance

Answer: D

The body's ability to sustain prolonged exercise is cardiorespiratory endurance.

It depends on how well the heart, lungs and blood vessels supply oxygen to working muscles over a long period, and is measured by tests such as the maximum oxygen uptake (VO2 max) or a timed run.

Body composition is the proportion of fat to lean tissue, flexibility is the range of movement at the joints, and agility is the ability to change direction quickly; none of them describes prolonged effort.

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