Exercise Physiology MCQs – T4Tutorials.com

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1. : What is the primary energy system used during high-intensity exercise lasting up to 10 seconds?
(A) Aerobic system
(B) Anaerobic glycolysis
(C) Phosphagen system
(D) Fat oxidation

2. : Which of the following is a primary function of the cardiovascular system during exercise?
(A) Enhance digestion
(B) Remove carbon dioxide and waste
(C) Increase muscle mass
(D) Regulate body temperature

3. : What is the term for the maximum amount of oxygen the body can utilize during intense exercise?
(A) VO2 max
(B) Lactic threshold
(C) Anaerobic capacity
(D) Cardiac output

4. : Which type of muscle fibers are most resistant to fatigue?
(A) Type I fibers
(B) Type IIa fibers
(C) Type IIb fibers
(D) Fast-twitch fibers

5. : What is the primary source of energy for prolonged, low-intensity exercise?
(A) Glucose
(B) Fat
(C) Protein
(D) Creatine

6. : Which physiological response occurs immediately after beginning exercise?
(A) Decrease in heart rate
(B) Increase in stroke volume
(C) Increase in blood flow to muscles
(D) Decrease in oxygen consumption

7. : What happens to stroke volume during intense exercise?
(A) It decreases
(B) It remains the same
(C) It increases
(D) It fluctuates

8. : Which of the following factors primarily determines muscular strength?
(A) Muscle fiber type
(B) Muscle size
(C) Nervous system activation
(D) All of the above

9. : What is the term for the buildup of lactic acid during anaerobic exercise?
(A) Lactate threshold
(B) Anaerobic capacity
(C) Oxygen debt
(D) Muscle fatigue

10. : Which hormone is released during exercise and helps mobilize energy stores?
(A) Insulin
(B) Cortisol
(C) Epinephrine
(D) Serotonin

11. : What is the primary function of the respiratory system during exercise?
(A) Regulate body temperature
(B) Deliver oxygen to the blood and remove carbon dioxide
(C) Support movement
(D) Control heart rate

12. : What is the primary adaptation of the cardiovascular system to endurance training?
(A) Increased resting heart rate
(B) Decreased stroke volume
(C) Increased capillary density
(D) Decreased blood volume

13. : How does regular resistance training affect muscle fibers?
(A) It decreases their size
(B) It increases their strength and size
(C) It converts fast-twitch fibers to slow-twitch fibers
(D) It has no effect on muscle fibers

14. : What physiological change occurs with aerobic training?
(A) Decrease in VO2 max
(B) Decrease in fat oxidation
(C) Increase in mitochondrial density
(D) Increase in heart rate at rest

15. : Which of the following is a potential benefit of high-intensity interval training (HIIT)?
(A) Increased risk of injury
(B) Improved cardiovascular fitness in less time
(C) Decreased metabolism
(D) Reduced muscle strength

16. : What is the primary function of myoglobin in muscle cells?
(A) Store glucose
(B) Store oxygen
(C) Produce ATP
(D) Remove carbon dioxide

17. : What happens to the body’s core temperature during prolonged exercise in hot conditions?
(A) It decreases significantly
(B) It remains constant
(C) It increases
(D) It fluctuates

18. : What is the term for the increase in the number of red blood cells in response to endurance training?
(A) Hemoconcentration
(B) Erythropoiesis
(C) Hyperemia
(D) Hemodilution

19. : Which energy system is primarily used during a 400-meter sprint?
(A) Phosphagen system
(B) Aerobic system
(C) Anaerobic glycolysis
(D) Fat oxidation

20. : How does regular aerobic exercise affect resting heart rate?
(A) Increases it
(B) Decreases it
(C) Has no effect
(D) Makes it irregular

Exercise Physiology MCQs
By: Prof. Dr. Fazal Rehman | Last updated: May 31, 2025

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