Cardiac output and total peripheral resistance in athletes and in non-athletes at rest
Pavlik, G.; Molnár, G.; Farsang, C.; Frenkl, R.
Acta Physiologica Academiae Scientiarum Hungaricae 55(1): 13-18
1980
ISSN/ISBN: 0001-6756 PMID: 7395528 Document Number: 160995
Cardiac output (CO), blood pressure (BP) and heart rate (HR) were estimated in 13 non-athletes, 10 highly trained athletes and 8 lower-class athletes at rest. HR and BP were lower in both trained groups than in the controls. CO was lower in the top athletes, while it was higher in the lower-class athletes. Total peripheral resistance (TPR) was higher in the top athletes but reduced in the lower-class athletes than in the controls. In the maintenance of resting blood pressure level in the physically trained subjects, .alpha.-adrenergic mechanisms predominate, whereas the share of .beta. influences is lower; this shift is observed only in the highly trained, top-rank endurance atheletes.