title: Should elderly people with heart failure conserve their hearts with less-strenuous activity, for example by attempting to maintain a low pulse rate while exercising?
mesh_terms: D000368:Aged; D002303:Cardiac Output, Low / Q000503:physiopathology* / Q000534:rehabilitation; D015444:Exercise / Q000502:physiology*; D006339:Heart Rate; D006801:Humans