What is the typical value for stroke volume in a healthy adult heart?

In a healthy adult heart, the typical stroke volume, which is the amount of blood ejected from the ventricle with each heartbeat, is approximately 70 mL. This value can vary based on factors such as age, sex, body size, and physical conditioning, but 70 mL is commonly accepted as an average for a resting adult. Stroke volume is an important indicator of cardiac output and overall cardiovascular health, reflecting the efficiency of the heart in pumping blood throughout the body.

Understanding this value helps in assessing cardiac function during various activities and can guide training and rehabilitation programs. While some individuals may have stroke volumes below or above this number, particularly athletes may have higher stroke volumes due to improved cardiovascular efficiency, 70 mL serves as a reliable standard for general health assessment.