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  • Created by: claud
  • Created on: 21-11-14 11:51


What is EPOC? Excessive post-exercise oxygen consumption

  • after exercise heart rate and ventilation rates stay elevated in order to aid the recovery process and restore the body to its preexercise state
  • energy is provided by the aerobic system in order to remove any waste products produced by the exercise and to replenish any stores used
  • an excess of oxygen needs to be present for these processes which is called EPOC
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Oxygen deficit

What is oxygen deficit? The difference between the O2 required for the exercise and the amount that is actually being taken in.

  • O2 deficit has to be repaid
  • extra O2 has to be brought into the body once exercise is finished to help return body to resting stateRecovery following exercise (http://www.brianmac.co.uk/pictures/physiology/epoc.jpg)
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CO2 removal

  • CO2 is a byproduct of respiration
  • travels as carbonic acid and carbominohaemoglobin
  • CO2 taken to lungs where it expires
  • respiration and heart rate remain elevated after exercise for this to happen
  • high heart rate is caused by high metabolic functions and chemoreceptors
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Glycogen replenishment

  • glycogen stores deplete quickly which causes muscle fatigue
  • glycogen replenishment can take hours or days
  • fast twitch fibres replenish glycogen quicker than slow twitch fibres
  • athletes use carbohydrate rich drinks to replace glycogen
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