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HMS, BM EQ-Bank 340 MC

Which of the following statements correctly describes the immediate response of cardiac output during the initial phase of a moderate intensity training session?

  1. Cardiac output decreases to maintain blood pressure at resting level
  2. Cardiac output remains constant while heart rate and stroke volume adjust
  3. Cardiac output increases due to an increase in both heart rate and stroke volume
  4. Cardiac output increases solely due to increased stroke volume
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\(C\)

Show Worked Solution
  • C is correct: Cardiac output increases via both HR and SV increases

Other Options:

  • A is incorrect: Cardiac output increases, not decreases during exercise
  • B is incorrect: Cardiac output changes, not remains constant
  • D is incorrect: Both HR and SV increase, not SV alone