title: [Systolic time intervals at rest in subjects under prolonged stress: a computerized analysis].
abstract: Systolic time intervals were measured in 21 endurance-athletes (middle and lung distance runners) with a computerized method. Data from athletes were compared with that obtained in 27 age-matched normal untrained subjects. Endurance athletes showed significantly inferior values than normal untrained subjects of heart rate, total ejection time (TET), rapid ejection time (TER), electromechanical systole duration (QS2). Authors suggest that these results, particularly the reduction of TER at rest, could be due to a more rapid ejection rate primary or secondary to a left ventricular after-load reduction, following the cardiovascular adaptations induced by training in these athletes.
mesh_terms: D000293:Adolescent; D000328:Adult; D003201:Computers; D006801:Humans; D008297:Male; D009200:Myocardial Contraction; D010807:Physical Endurance; D013599:Systole
vernacular_title: Gli intervalli sistolici a riposo nel soggetto allenato allo sforzo prolungato: esperienza di analisi computerizzata.