Copyright © 1991 by the European Society of Cardiology.
© 1991 The European Society of Cardiology
Echocardiographic assessment of myocardial performance after prolonged strenuous exercise
*Laboratoire de Physiologie, Université de Bordeaux II 146 rue Léo Saignat, 33076 Bordeaux Cédex, France
Service de Réaniniation Médicale A Hôpital Pellegrin, Place Amélie Raba Leon 33076 Bordeaux Cédex, France
Center Régional d'Educaiion Physique et Sportive 653, Cours de Ia Libération, 33400 Talence, France
Service de Cardiologie Hôpital Cardiologique du Haut-Leveque, 33604 Pessac Cédex, France
Received 16 March 1990; revised 4 January 1991; .
Correspondence: Gérard Manier, Laboratoire de Physiologic, Faculté Victor Pachon, Université de Bordeaux 11, 146 rue Léo Saignat, 33076 Bordeaux Cédex, France
Abstract
To determine the effect of strenuous prolonged exercise on systolic and diastolic left ventricular function, 11 non-elite marathon runners aged 37±7 years (mean±SD) were studied before and during early recovery from a marathon race. Cavity dimensions, wall thickness, and fractional shortening were computed from two-dimensionally guided M-mode echocardiograms. Doppler left ventricular inflow tract recordings were analysed for peak early and late velocities and their ratio. In seven subjects, heart frequency was recorded throughout the race. These subjects ran the marathon at 87±4% of their maximal heart rate. Left ventricular diastolic dimension was slightly reduced at the end of the race (49·4±4·2 mm to 47·3±5·1 mm:P<0·05). Fractional shortening remained unchanged, although blood pressure (P<0·001) and systolic it all stress (P<0·01) were decreased. The left ventricular filling pattern was unchanged, and the ratio of early to late velocities remained constant. These results suggest that the fractional shortening was a result of the opposing effects of changes in preload and afterload. However, the absence of a change in the end systolic dimension, despite a marked reduction in afterload and the occurrence of septal akinesia in one subject after the race could only suggest that strenuous prolonged exercise may alter mnyocardial performance.
Key Words: Prolonged exercise • echography • Doppler velocimetry • left ventricular contractility • left ventriculardiastolic function
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  M Y Hassan, T D Noakes, P Berlyn, R Shave, K George, and E Dawson Preload maintenance protects against a depression in left ventricular systolic, but not diastolic, function immediately after ultraendurance exercise * Commentary Br. J. Sports Med., June 1, 2006; 40(6): 536 - 540. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. Middleton, R. Shave, K. George, G. Whyte, J. Forster, D. Oxborough, D. Gaze, and P. Collinson Novel application of flow propagation velocity and ischaemia-modified albumin in analysis of postexercise cardiac function in man Exp Physiol, May 1, 2006; 91(3): 511 - 519. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. C. Welsh, D. E. R. Warburton, D. P. Humen, D. A. Taylor, J. McGavock, and M. J. Haykowsky Prolonged strenuous exercise alters the cardiovascular response to dobutamine stimulation in male athletes J. Physiol., November 15, 2005; 569(1): 325 - 330. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K P George, E Dawson, R E Shave, G Whyte, M Jones, E Hare, D Gaze, and P Collinson Left ventricular systolic function and diastolic filling after intermittent high intensity team sports Br. J. Sports Med., August 1, 2004; 38(4): 452 - 456. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. Nagashima, H. Musha, H. Takada, and M. Murayama New upper limit of physiologic cardiac hypertrophy in Japanese participants in the 100-km ultramarathon J. Am. Coll. Cardiol., November 5, 2003; 42(9): 1617 - 1623. [Abstract] [Full Text] [PDF]
|
|