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Maughan & Gleeson: The Biochemical Basis of Sports Performance

Chapter 04

  1. What is the net ATP yield of anaerobic glycolysis if the substrate is glycogen? Why is this different if the substrate is glucose taken up from the blood?
  2. If 10 mmoles of lactic acid were added to one litre of water the pH would change from pH 7 to pH 2. Why does a smaller pH change occur when the blood lactic acid concentration rises to 10 mmoles/litre during high intensity exercise?
  3. Explain why bicarbonate ingestion can influence performance in middle distance running.
  4. List the possible causes of fatigue during a 1500 m race.
  5. What factors influence the rate of muscle glycogen breakdown during exercise?
  6. Why is fat not an important energy source for middle distance running?