Magnetic Resonance Imaging Study for the Comparative Measurement of Cardiac Parameters Between Endurance and Power and Fast-Power Athletes

Journal of Clinical and Basic Cardiology

Simor T¹  Pavlik G¹  Gyimes Z¹ 

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关键词: Athlet;    Kardiologie;    MRI;    athlete;    cardiology;    Endurance;    heart;    power;   

DOI  :  

学科分类：心脏病和心血管学

来源: Krause & Pachernegg GmbH

【 摘 要 】

Clinical observations referring to the "athlete's heart" are mostly based on echocardiographic studies. Data obtained by MRI (MagneticResonance Imaging) have only been published recently. In the present study data obtained by MRI were compared in young male enduranceathletes (n = 9), power and fast-power athletes (n = 9) and young sedentary subjects (n = 8). Relative aerobic power in the endurance athleteswas higher than in power and fast-power athletes (67.05 ± 4.58 vs. 56.65 ± 5.15 ml/min/kg), their resting heart rate was lower (52.1 ± 5.8 vs.57.6 ± 8.2 beats/min). Resting heart rate was significantly lower in both athletic groups than in controls (64.3 ± 9.1 beats/min). In both athleticgroups mean body-size related left ventricular muscle mass (LVM/BSA3/2: 72.08 ± 10.1 mm/m3 in the endurance athletes and 66.67 ±13.7 mm/m3 in the power and fast-power athletes) and end-diastolic volume (LVEDV/BSA3/2: 53.0 ± 10.13 ml/m3 and 52.44 ± 11.2 ml/m3respectively) were higher than those of the non-athletic group (LVM/BSA3/2: 59.52 ± 6.76 g/m3; LVEDV/BSA3/2: 41.75 ± 6.34 ml/m3).There was, however, no significant difference between the values of the two athletic groups. Mean relative wall thickness (LVWT/BSA1/2) washigher in the endurance athletes than in the power and fast-power athletes (7.49 ± 0.51 vs. 6.89 ± 0.28 mm/m). The values of wall thicknessexceeded that of the sedentary subjects (6.66 ± 0.15 mm/m) in both athletic groups. Results of our MRI examinations are in accordance with theobservations of those who do not support entirely the theory that power athletes are characterised by a concentric and endurance athletes by aneccentric hypertrophy.

【 授权许可】

Unknown