What is one benefit of increased stroke volume (SV) during physical activity?

Increased stroke volume (SV) during physical activity refers to the amount of blood ejected from the heart with each beat. One significant benefit of having a higher stroke volume is that it allows for more blood and nutrients to be delivered to the muscles with each heartbeat. This is crucial during exercise, as the working muscles require a larger supply of oxygen and nutrients to sustain activity and perform optimally.

As stroke volume increases, the heart can effectively pump more blood throughout the body, enhancing the oxygen delivery to tissues, reducing overall heart rate exertion during exercise, and allowing for improved endurance. This optimized circulation supports better performance and recovery during physical activities, making it a key factor in exercise physiology.

The other options, such as increased heart rate requirement, higher blood pressure, and decreased oxygen consumption, do not provide the same beneficial response associated with improved stroke volume. Instead, they may reflect different physiological adjustments made during exercise, which do not contribute positively to the primary advantages of increased stroke volume.