Kandels Joscha, Stöbe Stephan, Marshall Robert Percy, Hagendorff Andreas, Metze Michael
Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstr. 20, 04103 Leipzig, Germany.
RasenBallsport Leipzig GmbH, Cottaweg 3, 04177 Leipzig, Germany.
J Cardiovasc Dev Dis. 2024 Sep 9;11(9):284. doi: 10.3390/jcdd11090284.
Left atrial strain (LAS) assessment by speckle tracking echocardiography (STE) has been shown to be a remarkable means of quantifying LA function as an early marker of LV pathology. As exercise testing is also performed on a treadmill, the aim of this study was to investigate the effect of upright posture on LAS in healthy athletes.
Fifty male athletes (mean age 25.7 ± 7.3 years) underwent transthoracic echocardiography (TTE) in the upright and left lateral positions. In addition to the conventional echocardiographic parameters, in all athletes, LA conduction strain (LAScd), contraction strain (LASct), reservoir strain (LASr), and maximum LA volume (LAV) were assessed by STE in both positions.
Comparing upright posture and the left lateral position, LAScd (-14.0 ± 5.9% vs. -27.4 ± 7.1%; < 0.001), LASct (-4.6 ± 3.5% vs. -11.3 ± 4.1%; < 0.001), LASr (18.7 ± 7.6% vs. 38.7 ± 8.0%; < 0.001), and LAV (24.4 ± 8.8% vs. 50.0 ± 14.2%) differed significantly.
Upright posture has a significant effect on LA deformation, with decreased LAScd, LASct, and LASr. The results of this study contribute to the understanding of athletes' hearts and must be considered when performing echocardiography in healthy athletes on a treadmill.
斑点追踪超声心动图（STE）评估左心房应变（LAS）已被证明是量化左心房功能的一种显著手段，可作为左心室病变的早期标志物。由于运动测试也在跑步机上进行，本研究的目的是调查直立姿势对健康运动员LAS的影响。
50名男性运动员（平均年龄25.7±7.3岁）在直立位和左侧卧位接受经胸超声心动图（TTE）检查。除了常规超声心动图参数外，在所有运动员中，通过STE在两个体位评估左心房传导应变（LAScd）、收缩应变（LASct）、储存应变（LASr）和最大左心房容积（LAV）。
比较直立位和左侧卧位，LAScd（-14.0±5.9%对-27.4±7.1%；<0.001）、LASct（-4.6±3.5%对-11.3±4.1%；<0.001）、LASr（18.7±7.6%对38.7±8.0%；<0.001）和LAV（24.4±8.8%对50.0±14.2%）有显著差异。
直立姿势对左心房变形有显著影响，LAScd、LASct和LASr降低。本研究结果有助于理解运动员心脏，在对健康运动员进行跑步机超声心动图检查时必须予以考虑。
