What is the average value of the end diastolic volume at rest?

The end diastolic volume (EDV) refers to the volume of blood in the ventricles of the heart at the end of diastole, right before the heart contracts and pumps blood out. At rest, the average EDV is typically around 130 mL for a healthy adult.

This value is significant because it reflects the amount of blood that is available for the heart to pump during the subsequent contraction, impacting cardiac output and overall cardiovascular function. A higher EDV can indicate better filling of the heart and potentially lead to greater stroke volume, assuming contractility remains constant.

In clinical and exercise physiology contexts, understanding the EDV is crucial as it provides insights into cardiac performance and efficiency, particularly in different states of physical activity or rest. The choice of 130 mL accurately represents the typical physiological state at rest for an adult's heart and is well-supported by cardiovascular research and literature.