Summary
Extra oxygen consumption after exercise restores ATP and phosphocreatine and clears lactate.
In depth
EPOC (excess post-exercise oxygen consumption) restores phosphocreatine, oxygen stores, clears lactate and reduces elevated temperature and hormone levels.
Lactate clearance contributes. Elevated temperature, hormones and heart rate increase oxygen demand after exercise.
Remember: oxygen debt is an outdated term; EPOC is preferred.
Frequently asked questions
What is Oxygen Debt and Recovery?
Extra oxygen consumption after exercise restores ATP and phosphocreatine and clears lactate.
Which area of biology covers Oxygen Debt and Recovery, and how advanced is it?
Oxygen Debt and Recovery is one of the 53 topics in Metabolism & Bioenergetics. It is rated Advanced, so it suits learners who want specialist depth. Related topics in this area include Bioenergetics of Muscle, Metabolic Rate, Lactic Acid Fermentation.
Can you give an example of Oxygen Debt and Recovery?
Heavy breathing after sprinting reflects this repayment.
What should I learn before Oxygen Debt and Recovery?
Work through the Beginner topics in Metabolism & Bioenergetics first, such as Metabolism, Anabolism and Catabolism, ATP, then return to Oxygen Debt and Recovery. Advanced topics assume the Intermediate vocabulary.
What topics are related to Oxygen Debt and Recovery?
The closest topics to Oxygen Debt and Recovery are Bioenergetics of Muscle, Metabolic Rate, Lactic Acid Fermentation, Cholesterol Metabolism. Comparing them side by side is a good way to see how the ideas connect.
How can I check that I understand Oxygen Debt and Recovery?
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Oxygen Debt and Recovery. To practise the whole of Metabolism & Bioenergetics, use the Metabolism & Bioenergetics quiz.
How is Oxygen Debt and Recovery different from Bioenergetics of Muscle?
Oxygen Debt and Recovery: Extra oxygen consumption after exercise restores ATP and phosphocreatine and clears lactate. Bioenergetics of Muscle: Phosphocreatine, glycolysis and oxidative metabolism supply ATP at different timescales of exercise. Read both side by side and note what each one explains.
How should I study Oxygen Debt and Recovery step by step?
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Bioenergetics of Muscle and explain the difference aloud. Finally, take the Metabolism & Bioenergetics quiz and come back to this page for any question you miss.