Left ventricular mass index and sports: the influence of different sports activities and arterial blood pressure

Background: The mechanisms by which endurance training produces physiological hypertrophy have been thoroughly investigated but not with young athletes. The aim of our study was to investigate arterial blood pressure exercise responses in young athletes who started heavy training by the age of 11, p...

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Published in:International journal of cardiology 2000-09, Vol.75 (2), p.261-265
Main Authors: Iglesias Cubero, G., Batalla, A., Rodriguez Reguero, J.J., Barriales, R., González, V., de la Iglesia, J.L., Terrados, N.
Format: Article
Language:English
Subjects:
Adolescent
Arterial blood pressure
Bicycling - physiology
Biological and medical sciences
Blood Pressure
Cardiology. Vascular system
Exercise
Heart
Heart - physiology
Heart Ventricles - anatomy & histology
Hemodynamics
Humans
Hypertrophy, Left Ventricular - physiopathology
Left ventricular hypertrophy
Male
Medical sciences
Myocarditis. Cardiomyopathies
Oxygen Consumption
Physical Endurance - physiology
Soccer - physiology
Sports - physiology
VO 2
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Summary:Background: The mechanisms by which endurance training produces physiological hypertrophy have been thoroughly investigated but not with young athletes. The aim of our study was to investigate arterial blood pressure exercise responses in young athletes who started heavy training by the age of 11, participating in metabolically different sports (cycling, kayaking, and soccer) and to analyse the influence that arterial blood pressure at maximum exercise and VO 2 max could have on the development of cardiac mass in these subjects. Subjects and methods: We studied a group of well trained normotensive male subjects, comprising 37 cyclists, 15 soccer players and 12 canoeists (mean age, 16±1 years). Evaluation included a clinical history and physical examination, M-mode and two-dimensional echocardiography, 12-lead resting electrocardiogram and a graded exercise test with direct determination of VO 2 max. Systolic and diastolic blood pressure were measured at rest and maximum exercise. Determination of the left ventricular mass index (LVMI) was performed using Devereux’s formula with correction for the body surface area. Results: Cyclists showed values of LVMI in g m −2 significantly higher than those of other subjects (123 vs. 92 and 113). Canoeists showed the maximal arterial blood pressure at maximum exercise in mmHg (190 vs. 172 and 170) and cyclists showed the maximal VO 2 ml kg −1 min −1 uptake (57.6 vs. 48.5 and 53.3). A linear correlation was found between LVMI and VO 2 max ( r=0.4727, P
ISSN:0167-5273
1874-1754
DOI:10.1016/S0167-5273(00)00342-9