What is the average stroke volume at rest?

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The average stroke volume at rest is approximately 70 mL per beat. Stroke volume refers to the amount of blood pumped by the heart with each beat and is a crucial component of cardiac output, which is the total volume of blood the heart pumps in a minute. At rest, the heart does not need to work as hard to supply oxygen and nutrients to the body's tissues compared to during exercise or physical activity, resulting in a typical stroke volume around 70 mL. This value can vary based on factors such as individual fitness level, body size, and overall heart health, but 70 mL is widely accepted as the average for a healthy adult at rest.

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