Cited by 175Cardiovascular Effects of ExerciseCardiovascular and exercise physiologyCardiovascular Function and Risk Factors

Different effects of prolonged exercise on the right and left ventricles

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Douglas, Pamela S., O'Toole, Mary L., Miller, W.Douglas B., Reichek, Nathaniel·1990·Journal of the American College of Cardiology

Abstract

To examine the functional consequences of the greater increase in right ventricular work with exercise, the effects of prolonged exercise on the right and left heart chambers were compared in 41 athletes before, at the finish (13 min) and after recovery (28 h) from the Hawaii Ironman Triathlon (3.9 km swim, 180.2 km bike ride, 42.2 km run). Two-dimensional and Doppler echocardiograms were analyzed for left and right atrial and ventricular areas at end-diastole and end-systole, right and left ventricular inflow velocities and mitral and tricuspid regurgitation. After exercise, left ventricular and left and right atrial sizes were reduced, whereas right ventricular size increased (diastole: 21.4 to 24.2 cm2; systole: 15.8 to 18.2 cm2; p less than 0.01). The emptying fraction of all chambers was unchanged. Left but not right ventricular inflow showed an increase in peak velocity of rapid filling, whereas both atrial systolic velocities increased (26 to 38 cm/s tricuspid; 38 to 54 cm/s mitral; both p less than 0.01). Overall, the right ventricular early to atrial velocity ratio was reduced after exercise (1.56 to 1.17; p less than 0.05) and the left ventricular pattern was unchanged. The prevalence of tricuspid regurgitation was statistically unchanged (86% to 52%), although that of mitral regurgitation was greatly reduced (76% to 0%). Changes in all variables returned toward prerace values during recovery. Thus, in highly trained athletes, prolonged exercise causes differing responses of the right and left ventricles. These differences may be due to changes in right ventricular function, shape or compliance.

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Research works printed but not linked: 2

  1. Stanek v, Jebavy P. Hurych J, Widimsky J. Central haemodynamics . . . . ounng supme exercise and pulmonary artery occulsion in normal sub- jects. Bull Physiopath Resp 1973;9:1203-17.
  2. Miyatake K, Okamoto M, Kinosbita N, et al. Augmentation of atria! contribution of left ventricular inflow with aging as assessed by intracar- metry. Am J Cardiol 1984;53:586-9.

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Authors
Douglas, P. S., O'Toole, M. L., Miller, W. D. B., & Reichek, N.
Affiliations
  • Hospital of the University of Pennsylvania (US)
  • Baptist Memorial Hospital (US)
Corresponding author
Douglas, Pamela S.
Venue
Journal of the American College of Cardiology
Publisher
Elsevier BV
Published
1990-01
Volume
15
Issue
1
Pages
64-69
ISSN
0735-1097 (ISSN-L)
OpenAlex
W2077549315
Cited by
172
References
25
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 3 · 2022: 4 · 2021: 2 · 2020: 6 · 2019: 3 · 2018: 4 · 2017: 10 · 2016: 3 · 2015: 12 · 2014: 13 · 2013: 7 · 2012: 9
FWCI
1.53
Type
journal article
Language
en
Open access
Locations
  • Journal of the American College of Cardiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Effects of Exercise
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
Keywords
prolonged exercise, right ventricle, left ventricle, right ventricular hypertrophy, athletes, triathlon, cardiac chamber dimensions, mitral regurgitation, tricuspid regurgitation, post-exercise recovery, right ventricular compliance, echocardiography
MeSH terms
Adult, Bicycling, Coronary Circulation, Echocardiography, Physical Exertion, Female, Humans, Male, Myocardial Contraction, Physical Endurance, Running, Stroke Volume, Swimming, Echocardiography, Doppler, Ventricular Function

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