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In: Anatomy and Physiology

What factors associated with this aerobic power test may result in variations in the values estimated...

What factors associated with this aerobic power test may result in variations in the values estimated for aerobic power?

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Expert Solution

Aerobic power is the ability of the muscles to use oxygen received form the heart and lungs to produce energy. Aerobic power is usually monitored and tested using VO2 max.

Maximal aerobic power (VO2)s the highest peak oxygen uptake that an individual can obtain during dynamic exercise using large muscle groups

The repeated measurements of maximal aerobic power show a fairly low variation from day to day due to some particular factors like

  • mode of exercise and the person’s heredity,
  • state of training,
  • body composition,
  • gender,
  • age.

Factors for VO2 max determinants are

  • Cardiac output,
  • stroke volume ,
  • pulmonary diffusion capacity,
  • oxygen carrying capacity,
  • the peripheral limitations of muscle diffusion capacity,
  • mitochondrial enzymes, and capillary density.
  • oxygen content of the arterial blood.:

The main factor associate with VO2 max. determinant is the oxygen content of arterial blood. If the oxygen content of the arterial blood is increased the maximal aerobic power and physical performance is increased. If it is decreased--except when there is an acute volume expansion--or if the heart rate is depressed the circulation can not compensate for it and the maximal aerobic power is decreased.

Sydney Mullin answered 1 year ago
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