Why do marathon runners avoid anaerobic respiration?
unlike sprinters, marathon runners need long lasting energy that cannot be provided by anaerobic respiration as they run for such long distances that extremely large amounts of lactic acid would build up, causing pain, and there would not be enough ATP created to make up for energy used for running since only 2 net ATP is made every time anaerobic respiration occurs as opposed to the 36 ATP aerobic respiration produces. Also because marathon runners run for long periods of time, they go into oxygen debt that they cannot make up since they must continue to run.
