Exploration of the Parameters Influencing the Effort Limitation of Patients Suffering From Homozygous Sickle Cell Anemia

Simultaneous performance of an echocardiogram (part of the follow-up assessment for sickle cell heart disease) at rest and then during the cardiorespiratory stress test, and an ear capillary lactatemia analysis (already routinely performed to ensure the safety of the cardiorespiratory stress test) during the cardiorespiratory stress test routinely performed at Mondor University Hospital prior to cardiovascular rehabilitation programs.