Answers are grounded in this paper and cite their sources.
Aging is associated with increased vascular resistance and diminished cardiac reserve even in the absence of clinical cardiovascular disease.
The resting cardiac output measurements presented in the preceding article are analyzed in relation to intra-arterial pressure to provide estimates of peripheral circulatory state and of central cardiac performance. The calculated agewise increase in net vascular resistance which is responsible for the decrease in perfusion, indicates that circulatory attrition with age, on the average, outstrips the expected reduction in basal metabolism of the individual. Despite this lessened peripheral requirement, one may adduce evidences for a trend toward diminished cardiac reserve with age even in these subjects who revealed no clinical cardiac abnormality. The feasibility of predicting an individual's cardiac output from his blood pressure is commented upon.
No takes yet. Share an insight, caveat, or question.
Landowne et al. (1955) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: