Physiologic Changes in Aerobic and Anaerobic Exercise
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Questions and Answers

What is the primary energy source for aerobic exercise?

  • Proteins
  • Carbohydrates and proteins
  • Carbohydrates and fats (correct)
  • Fats and proteins
  • What happens to heart rate and stroke volume during aerobic exercise?

  • Increase (correct)
  • Decrease
  • Remain unchanged
  • Fluctuate
  • What is the role of EPOC (Excess Post-exercise Oxygen Consumption) after aerobic exercise?

  • It is related to increased carbon dioxide production after exercise
  • It represents the oxygen consumed post-exercise to restore the body to its pre-exercise state (correct)
  • It has no significant impact on post-exercise recovery
  • It indicates a decrease in oxygen consumption after exercise
  • Which macronutrients undergo aerobic metabolism during exercise?

    <p>Carbohydrates and fats</p> Signup and view all the answers

    What characterizes the energy output during aerobic exercise?

    <p>Sustained, moderate-intensity efforts</p> Signup and view all the answers

    What happens to respiratory rate and depth during aerobic exercise?

    <p>Increase</p> Signup and view all the answers

    During anaerobic exercise, what is the primary energy pathway?

    <p>Glycolysis</p> Signup and view all the answers

    What is the byproduct of anaerobic glycolysis?

    <p>Lactate</p> Signup and view all the answers

    What is rapidly broken down to regenerate ATP for very short bursts of activity?

    <p>Phosphocreatine</p> Signup and view all the answers

    What occurs during the post-exercise period to gradually clear lactate from the muscles?

    <p>Conversion of lactate back to pyruvate</p> Signup and view all the answers

    What is replenished during the recovery phase utilizing oxygen-dependent processes?

    <p>ATP and phosphocreatine stores</p> Signup and view all the answers

    What does the body work to restore during the recovery phase after anaerobic activity?

    <p>pH balance disrupted by lactic acid accumulation</p> Signup and view all the answers

    What is the elevated metabolic rate during the recovery phase known as?

    <p>Post-Exercise Oxygen Consumption (EPOC)</p> Signup and view all the answers

    What are utilized for ongoing energy needs during anaerobic exercise?

    <p>Fatty acids</p> Signup and view all the answers

    What contributes to muscle fatigue during anaerobic glycolysis?

    <p>Accumulation of lactic acid</p> Signup and view all the answers

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