Document Detail


Left ventricular filling behaviour in ultra endurance and amateur athletes: a stress Doppler-echo study.
MedLine Citation:
PMID:  1487345     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To evaluate the impact of different training levels on left ventricular (LV) filling dynamics, Doppler mitral flow was derived in 25 amateur endurance-trained athletes (amateurs) aged 31 +/- 9 years, with a personal marathon record > 200 min, and in 26 ultra endurance athletes (top athletes) aged 32 +/- 8 years, with a personal marathon record < 170 min, during bicycle exercise in supine position. In particular atrial filling fraction as the relative share of atrial contribution to LV filling was measured. During exercise (150 watt) atrial filling fraction increased significantly more in amateurs from 25% to 34% compared to top athletes from 25% to 29% (p < 0.001). Two min post exercise atrial filling fraction already reached baseline values in top athletes (25%), while it remained significantly elevated in amateurs compared to baseline values (29%, p < 0.001). Only ten min post exercise atrial filling fraction showed baseline values in amateurs (26%). Rate pressure product was not significantly different at all levels of exercise. Thus, while atrial filling fraction rose in both study groups during exercise, it returned earlier to baseline values in top athletes than in amateurs. This indicates a better cardiac adaptation to physical stress and a better diastolic performance during exercise in endurance athletes with a higher training level.
Authors:
T Störk; M Möckel; R Müller; H Eichstädt; H Hochrein
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of sports medicine     Volume:  13     ISSN:  0172-4622     ISO Abbreviation:  Int J Sports Med     Publication Date:  1992 Nov 
Date Detail:
Created Date:  1993-02-19     Completed Date:  1993-02-19     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  600-4     Citation Subset:  IM    
Affiliation:
University Hospital Rudolf Virchow, Dpt. of Cardiology, Berlin, Germany.
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological
Adult
Atrial Function
Echocardiography, Doppler*
Heart Rate
Humans
Middle Aged
Physical Endurance / physiology*
Sports*
Ventricular Function, Left*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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