HMS, BM EQ-Bank 318 MC

During an athletics training session, a coach observes a sprinter's heart rate. Which of the following is the most likely immediate physiological response to high-intensity sprint training?

Decreased heart rate
Increased heart rate
Decreased cardiac output
No change in heart rate

Show Answers Only

\(B\)

Show Worked Solution

B is correct: Heart rate increases immediately to supply oxygen to muscles

Other Options:

A is incorrect: Heart rate increases not decreases during exercise
C is incorrect: Cardiac output increases not decreases during exercise
D is incorrect: Heart rate always changes with exercise