What is a typical stroke volume while at rest?
a. 20 mL
b. 40 mL
c. 50 mL
d. 70 mL
Answer: d. 70 mL
A typical stroke volume while at rest is 70 mL. This is the volume of blood that is ejected from the heart during one ventricular contraction. Stroke volume increases with exercise until the intensity level reaches about 50% of the person's VO2Max, then it levels off.