RV Systolic and Diastolic Function and Contractile Reserve Under Acute Exercise and in Response to Chronic Exercise-based Rehabilitation

Exercise training in Pulmonary arterial hypertension in the setting of rehabilitation leads to an enormous improvement of functional state and haemodynamics. However the underlying mechanism is still unkown. It is assumed to be relied on Right ventricular contractile reserve, but this has never been proven with goldstandard PV-loop assessment. Our aim is to evaluate the mechanism leading to the increase in functional state and to evaluate the impact of exercise (acute and chronic) on right ventricular performance