Influence of age and sex on left ventricular volumes and ejection fraction during upright exercise in normal subjects

To determine the effects of age and sex on exercise left ventricular volume indexes and ejection fraction, a cross-sectional study was performed in 18 young volunteers (nine men and nine women) and in 17 older volunteers (nine men and eight women) without evidence of coronary artery disease by exerc...

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Bibliographic Details
Published in:European heart journal 1990-10, Vol.11 (10), p.916-924
Main Authors: YOUNIS, L. T., MELIN, J. A., ROBERT, A. R., DETRY, J. M. R.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age Factors
aging
Exercise
Exercise - physiology
Female
Gated Blood-Pool Imaging
haemodynamics
Hemodynamics - physiology
Humans
Male
Middle Aged
Sex Factors
Stroke Volume - physiology
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Summary:To determine the effects of age and sex on exercise left ventricular volume indexes and ejection fraction, a cross-sectional study was performed in 18 young volunteers (nine men and nine women) and in 17 older volunteers (nine men and eight women) without evidence of coronary artery disease by exercise electrocardio-graphic and thallium-201 criteria. All subjects performed a multistage maximal upright exercise with measurements of maximal oxygen consumption and heart rate; left ventricular ejection fraction and absolute volume indexes were measured at rest and during submaximal and maximal exercise using equilibrium radionuclide ventriculography. At rest, no effect of age or sex on any parameter was observed. At peak exercise, an age-related increase in mean blood pressure, end-diastolic and end-systolic volume indexes, and decrease in ejection fraction, cardiac index, heart rate and oxygen consumption were noticed. Sex had a significant effect on maximal workload, maximal oxygen consumption and ejection fraction.
ISSN:0195-668X
1522-9645
DOI:10.1093/oxfordjournals.eurheartj.a059613