Adaptation of cardiac morphology and function to endurance and strength training: A comparative study using MR imaging and echocardiography in males and females

Left ventricular (LV) dimensions and function and maximal oxygen uptake (VO(2)max) were measured in endurance-trained (10 male, m, 10 female, f), strength-trained athletes (8 m, 10 f) and untrained subjects (9 m, 10 f). LV dimensions were measured using magnetic resonance imaging (MRI) and echocardi...

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Bibliographic Details
Published in:Scandinavian journal of medicine & science in sports 2002-02, Vol.12 (1), p.17-25
Main Authors: WERNSTEDT, P, SJÖSTEDT, C, EKMAN, I, DU, H, THUOMAS, K.-A, ARESKOG, N. H, NYLANDER, E
Format: Article
Language:English
Subjects:
Adaptation, Physiological - physiology
Adolescent
Adult
Biological and medical sciences
Echocardiography
Exercise - physiology
Female
Fundamental and applied biological sciences. Psychology
Heart - anatomy & histology
Heart - physiology
Heart Rate - physiology
Heart Ventricles - anatomy & histology
Humans
Magnetic Resonance Imaging, Cine
Male
MEDICIN
MEDICINE
Muscle, Skeletal - physiology
Oxygen Consumption - physiology
Physical Education and Training - methods
Physical Endurance - physiology
Sex Factors
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
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Summary:Left ventricular (LV) dimensions and function and maximal oxygen uptake (VO(2)max) were measured in endurance-trained (10 male, m, 10 female, f), strength-trained athletes (8 m, 10 f) and untrained subjects (9 m, 10 f). LV dimensions were measured using magnetic resonance imaging (MRI) and echocardiography and the results were equal irrespective of method. Endurance-trained m and f had significantly higher LV volumes and mass than both strength-trained and controls. No VO(2)max or dimensional differences were seen between strength-trained and untrained subjects. In endurance-trained males, LV volumes and mass/kg bw were higher than in endurance-trained females. There was no significant gender difference for strength-trained or untrained subjects regarding body weight-related heart dimensions. It is concluded that LV dimensions and volumes are strongly dependent on oxygen transport capacity in normal subjects practising different modes of training, and that the gender differences, if LV dimensions are related to aerobic work capacity, are smaller than previously reported.
ISSN:0905-7188
1600-0838
1600-0838
DOI:10.1034/j.1600-0838.2002.120104.x