title: Aortic valve narrowing. Restricted blood flow may limit physical activity.
mesh_terms: D001021:Aortic Valve / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000209:etiology / Q000503:physiopathology* / Q000601:surgery; D015444:Exercise / Q000502:physiology*; D019918:Heart Valve Prosthesis Implantation / Q000379:methods; D006801:Humans