During incremental exercise, how is cardiac output able to continually increase

Question

During incremental exercise, how is cardiac output able to continually increase even though stroke volume plateaus around 40-60% VO2 max?

A) This is an incorrect statement. Stroke volume can continue to increase until VO2 max is achieved.

B) Because heart rate continues to increase

C) Because oxygen consumption continues to increase

D) Because cardiac output continues to increase

A) This is an incorrect statement. Stroke volume can continue to increase until VO2 max is achieved.

B) Because heart rate continues to increase

C) Because oxygen consumption continues to increase

D) Because cardiac output continues to increase

Explanation / Answer

During incremental exercise, heart rate contunues to increase linearly while stroke volume plateaus around 40-60% VO2 max. Since,

Cardiac output = Stroke volume * heart rate

the cardiac output also increases.

ANSWER: B) Because heart rate continues to increase

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.