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Thermoregulation (exercise)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Exercise raises the core temperature of the body as heat is produced rapidly by the inefficient burning of energy sources within skeletal muscle - initially, too rapidly for compensatory mechanisms to counter.

However, an elevation of temperature is beneficial in that:

  • it causes pre-capillary sphincters to vasodilate, so:
    • increasing supply of nutrients to muscle
    • increasing removal of waste products from muscle
    • increasing heat loss in cutaneous capillaries and acting to lower core temperature
  • ventilation rate is increased in frequency leading to increased evaporative heat loss
  • the oxygen dissociation curve is shifted to the right, liberating more oxygen to muscles

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