Isometric exercise and the cardiac patient.
D006329:Heart Conduction System / Q000503:physiopathology*; D006331:Heart Diseases / Q000503:physiopathology*; D006334:Heart Function Tests; D006352:Heart Ventricles / Q000503:physiopathology; D006439:Hemodynamics; D005082:Physical Exertion; D011312:Pressure