Left ventricular (LV) pressure-volume loop is shown below. During exercise within physiological limits, what is the effect on end-systolic volume?
- There is increased sympathetic discharge that has a positive inotropic effect on the hea. - LV contractility increases, ejecting a greater stroke volume (SV). - Hence, there is decrease in ESV, as shown in the image.
ESV decreases
ESV increases
ESV remains unchanged
ESV first decreases then increases
Cardiac Cycle