7 Questions
Which of the following options best describes metabolism of substrates immediately after exercise lasting 7 seconds?
A combination of fat oxidation and glucose metabolism (anaerobic glycolysis and minimal oxidation) occurs as ATP and PCr stores dissipate - glucose metabolism is the primary physiological process during this stage of exercise.
Pyruvate Dehydrogenase is considered an important enzyme in skeletal muscle metabolism during exercise. Which of the following statements is true regarding the enzyme's activation?
Pyruvate dehydrogenase is active in it's dephosphorylated form which occurs through activation of Pyruvate Dehydrogenase Phosphatase.
Which of the following accurately describes fuel selection during exercise?
Glycogen is a primary fuel source during high intensity, longer duration exercise
Which of the following IS NOT an accurate description of how Reactive Oxygen Species (ROS) affect physiology
ROS overproduction is necessary for stimulating mitochondrial biogenesis
Which of the following accurately describes a process by which the body regulates mitochondrial mass?
Mitochondrial Fusion which describes a process where damaged mitochondria share complementary DNA to produce a functioning mitochondrion.
Which of the following is NOT a response to exercising in the heat?
Increased stroke volume
In terms of acclimatisation to hotter environments, when would you expect exercise capacity adaptations to plateau out
Within two to three weeks of exercising in the heat
Study Notes
Exercise Metabolism and Adaptations
- During aerobic metabolism, _______________________ (complete the sentence).
Neural Adaptations to Exercise
- A neural adaptation to exercise is _______________________________________.
Exercise and Bone
- Exercise affects bone by ______________________________________________.
Reduction in VO2 Max
- After long periods of inactivity, VO2 max is reduced due to __________________________________.
Cardiovascular Adaptations
- The cardiovascular system adapts to exercise in response to stimuli such as ______________________________________________.
Exercise in Children and Adolescents
- In children or adolescents, exercise is characterized by ______________________________________________.
Obesity and Exercise Metabolism
- Regarding obesity and exercise metabolism, it is true that ______________________________________________.
Endurance Training Adaptations
- A key adaptation to training in endurance athletes is preferential metabolism of fats over carbohydrates because ______________________________________________.
Test your knowledge on how exercise affects metabolism, neural adaptations, bone health, VO2 max reduction after inactivity, cardiovascular system adaptations, and exercise in children or adolescents.
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