Image Based Question – 74827

During exercise in physiological limits what is the effect on end systolic volume?

A. ESV decreases

B. ESV increases

C. ESV remain unchanged

D. ESV first decreases and then increases

Correct Answer » A Explanation

Ans. A. ESV decreases

• During exercise there is an increase in preload (end diastolic volume)- increased venous return.
• Increase in afterload – increased Mean BP and increased stroke volume due to improved myocardial contractility.
• Theretbre, the ESV is decreased in exercise