Review Article
What Limits Cardiac Performance during Exercise in Normal Subjects and in Healthy Fontan Patients?
Table 1
Comparison of exercise-induced changes in pulmonary versus systemic vascular resistance and pressure. The pulmonary vasculature has very low resistance at rest but relatively limited capacity for further reduction. Therefore, exercise-induced increases in flow result in greater pressures due to the inability to compensate by reducing resistance. As described by the simplified Poiseuille’s law: Pressure = Flow Resistance.
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