ACSM Personal Trainer Certification 2025 – 400 Free Practice Questions to Pass the Exam

Stroke volume (SV) is a key parameter in cardiovascular physiology that represents the amount of blood ejected by the left ventricle of the heart with each contraction or heartbeat. This measurement is crucial because it provides insight into the heart's efficiency and overall performance. An increased stroke volume can indicate enhanced cardiac function, particularly during physical activity, where the demand for oxygenated blood rises.

The left ventricle is responsible for pumping oxygen-rich blood to the rest of the body, which is why the stroke volume measurement specifically focuses on this chamber. The volume of blood available to circulate throughout the body is affected by various factors, including heart size, strength of contraction, and the individual's level of fitness.

Understanding stroke volume is essential for personal trainers as it relates to exercise intensity and individual cardiovascular health, helping clients optimize their training regimens for improved cardiovascular endurance.