Objective Activity-related dyspnea appears to be the earliest and dominant symptom limiting exercise in the majority of patients afflicted by pulmonary arterial hypertension. This symptom progresses relentlessly with time leading invariably to avoidance of activity with consequent skeletal muscle deconditioning and poor perceived quality of life. Unfortunately, effective management of this disabling symptom awaits a better understanding of its underlying physiology. A growing body of evidence have highlighted that patients with pulmonary arterial hypertension may present with respiratory muscle weakness and abnormal lung function/respiratory mechanics. Despite these findings, to date little is known about the potential contribution of abnormalities in respiratory mechanics and ventilatory muscle function to dyspnea causation during physical exercise in patients with pulmonary arterial hypertension. This is, therefore, the main focus of the present study, with the aim of identifying potential unexplored physiological mechanisms that can be targeted for therapeutic manipulation. Fields of science medical and health sciencesclinical medicinepneumologymedical and health sciencesbasic medicinephysiology Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) FP7-PEOPLE-2009-RG - Marie Curie Action: "Reintegration Grants" Call for proposal FP7-PEOPLE-2010-RG See other projects for this call Funding Scheme MC-IRG - International Re-integration Grants (IRG) Coordinator UNIVERSITE PIERRE ET MARIE CURIE - PARIS 6 EU contribution € 50 000,00 Address Place Jussieu 4 75252 PARIS France See on map Activity type Higher or Secondary Education Establishments Administrative Contact Ella Bouquet (Ms.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data