title: Cardiovascular responses to dynamic exercise.
abstract: Dynamic exercise results in a marked increase in oxygen consumption. This increase is accomplished by a significant increase in heart rate and peripheral oxygen extraction and, to a lesser extent, by an increase in stroke volume. There is a small increase in mean systemic and pulmonary artery pressures and marked decrease in systemic and pulmonary resistances with exercise. The result of changes in focal vasomotor tone is that a greater percentage of the cardiac output is directed to the working muscles.
mesh_terms: D002320:Cardiovascular Physiological Phenomena; D003326:Coronary Circulation; D003327:Coronary Disease / Q000503:physiopathology; D006339:Heart Rate; D006439:Hemodynamics; D006801:Humans; D009132:Muscles / Q000098:blood supply; D010100:Oxygen / Q000097:blood; D005082:Physical Exertion; D012039:Regional Blood Flow; D013318:Stroke Volume
chemical_list: D010100:Oxygen