Final answer:
Increasing end-diastolic volume (EDV) or end-systolic volume (ESV) will increase preload, which refers to the amount of blood in the ventricles at the end of atrial systole just prior to ventricular contraction. Contractility is another important factor that impacts end-systolic volume (ESV).
Step-by-step explanation:
Increasing the end-diastolic volume (EDV) or end-systolic volume (ESV) will increase preload.
Preload refers to the amount of blood in the ventricles at the end of atrial systole just prior to ventricular contraction. The greater the EDV is, the greater the preload is. It is one of the primary factors to consider for ventricular filling.
Contractility, which refers to the force of the contraction of the heart muscle, is another important parameter. Increasing contractility increases stroke volume (SV) and decreases ESV.