HMS, BM EQ-Bank 357 MC

During a 30 minute jog, a student recorded an increase in their cardiac output. This change is primarily due to:

Decreased blood pressure
Increased respiratory rate
Increased heart rate and stroke volume
Decreased peripheral resistance

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Consider Option C: Increased heart rate and stroke volume

Cardiac output increases during aerobic exercise due to both increased heart rate and stroke volume.

Other Options:

A is incorrect: Blood pressure typically increases (not decreases) during exercise.
B is incorrect: Respiratory rate increases but doesn’t directly cause cardiac output increase.
D is incorrect: Peripheral resistance decreases but isn’t the primary cause of increased cardiac output.