Athlete's heart - Right and left ventricular mass and function in male endurance athletes and untrained individuals determined by magnetic resonance imaging
Athlete's heart - Right and left ventricular mass and function in male endurance athletes and untrained individuals determined by magnetic resonance imaging
复制标题
DOI：
10.1016/s0735-1097(02)02478-6
复制
发表时间：
2002-11-20
影响因子：
24
通讯作者：
Kindermann, W
中科院分区：
文献类型：
--
作者：
Scharhag, J;Schneider, G;Kindermann, W
运动员的心脏代表了一种结构和功能的适应，以定期的耐力exercise.Background虽然左心室（LV）肥大的运动员的心脏已在许多研究中进行了检查，右心室（RV）肥大的程度仍然是不确定的，因为它的复杂的形状和小梁结构。为了检查RV肥大，我们使用磁共振成像（MRI），并假设运动员的心脏具有相似的LV和RV肥大。方法21名男性耐力运动员（A）的LV和RV质量，体积和功能。（27 +/- 4处眼泪; 70 +/- 8 kg; 178 +/- 7 cm;最大摄氧量[Vo（2）max]：68 +/- 5 ml/min/kg）和21名配对的未经培训的对照受试者（C）（26 ± 3岁; 71 ± 9 kg; 178 ± 6 cm; Vo（2）max：42 ± 6 ml/min/kg）（Magnetom Vision 1.5T，Siemens，埃尔兰根，德国）。（A：200 +/- 20 g; C：148 +/- 17 g）和RV质量（A：77 +/- 10 g; C：56 +/- 8 g）组间差异显著（p < 0.001）。I、V和RV舒张末期容积（EDV）（LV-EDV 167 +/- 28 ml [A]; 125 +/- 16 ml [C]; RV-L：DV 160 +/- 26 ml [A]; 128 +/- 10 ml [C]）和每搏输出量（SV）（LV-SV：99 +/- 18 ml [A]，74 +/- 11 ml [C]; RV-SV：102 +/- 18 ml [A]，79 8 ml [C]）在运动员和对照组之间有显著差异射血分数（EF）（LV-EF：59 +/- 3% [A]; 59 +/- 6% [C]; RV-EF：63 +/- 3% [A]，62 +/- 3% [C]）和两组的LV/RV比值相似（左心室-右心室质量：2.6 +/- 0.2 [A]，2.6 +/- 0.3 [C];左心室-右心室EDV：1.05 +/- 0.14 [A]，0.99 +/- 0.14 [C];左心室-右心室SV：0.98 +/- 0.17 [A]，0.95 +/- 0.17 [C];左心室-右心室EF：0.93 +/- 0.07 [A]，0.96 +/- 0.10 [C]）。结论：有规律的和广泛的耐力训练导致耐力运动员左心室和右心室的质量、体积和功能发生相似的变化。这导致运动员的心脏是一个平衡的扩大的心脏的结论。(C)2002年，美国心脏病学会基金会。
OBJECTIVES Athlete's heart represents a structural and functional adaptation to regular endurance exercise.BACKGROUND While left ventricular (LV) hypertrophy of the athlete's heart has been examined in many studies, the extent of right ventricular (RV) hypertrophy is still uncertain because of its complex shape and trabecular structure. To examine RV hypertrophy, we used magnetic resonance imaging (MRI) and hypothesized that athlete's heart is characterized by similar LV and RV hypertrophy.METHODS The LV and RV mass, volume, and function in 21 male endurance athletes (A) (27 +/- 4 tears; 70 +/- 8 kg; 178 +/- 7 cm; maximal oxygen uptake [Vo(2)max]: 68 +/- 5 ml/min per kg) and 21 pair-matched untrained control subjects (C) (26 +/- 3 years; 71 +/- 9 kg; 178 +/- 6 cm; Vo(2)max: 42 +/- 6 ml/min per kg) were analyzed by MRI (Magnetom Vision 1.5T, Siemens, Erlangen, Germany).RESULTS Left ventricular masses (A: 200 +/- 20 g; C: 148 +/- 17 g) and RV masses (A: 77 +/- 10 g; C: 56 +/- 8 g) differed significantly between the groups (p < 0.001). The I,V and RV end-diastolic volumes (EDV) (LV-EDV 167 +/- 28 ml [A]; 125 +/- 16 ml [C]; RV-L:DV 160 +/- 26 ml [A]; 128 +/- 10 ml [C]), and stroke volumes (SV) (LV-SV: 99 +/- 18 ml [A], 74 +/- 11 ml [C]; RV-SV: 102 +/- 18 ml [A], 79 8 ml [C]) were significantly different between the athletes and control subjects (p < 0.001), whereas ejection fractions (EF) (LV-EF: 59 +/- 3% [A]; 59 +/- 6% [C]; RV-EF: 63 +/- 3% [A], 62 +/- 3% [C]) and LV-to-RV ratios were similar for both groups (LV-to-RV mass: 2.6 +/- 0.2 [A], 2.6 +/- 0.3 [C]; LV-to-RV EDV: 1.05 +/- 0.14 [A], 0.99 +/- 0.14 [C]; LV-to-RV SV: 0.98 +/- 0.17 [A], 0.95 +/- 0.17 [C]; LV-to-RV EF: 0.93 +/- 0.07 [A], 0.96 +/- 0.10 [C]).CONCLUSIONS Regular and extensive endurance training results in similar changes in L V and RV mass, volume, and function in endurance athletes. This leads to the conclusion that the athlete's heart is a balanced enlarged heart. (C) 2002 by the American College of Cardiology Foundation.