精英橄榄球联盟运动员的左心室结构和功能之间的关系，通过传统超声心动图和心肌应变成像来确定。

The relationship between left ventricular structure and function in the elite rugby football league athlete as determined by conventional echocardiography and myocardial strain imaging.

机构信息

Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom.

Department of Cardiology, Taunton and Somerset Hospital, Musgrove Park, Taunton, United Kingdom; Biological Physics Group, School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.

出版信息

Int J Cardiol. 2018 Jun 15;261:211-217. doi: 10.1016/j.ijcard.2018.01.140.

DOI:10.1016/j.ijcard.2018.01.140

PMID:29657045

Abstract

AIMS

The aims of this study were to establish the left ventricular (LV) phenotype in rugby football league (RFL) athletes and to mathematically model the association between LV size, strain (ɛ) and ejection fraction (EF).

METHODS AND RESULTS

139 male athletes underwent echocardiographic LV evaluation including ɛ imaging. Non-athletic males were used for comparison. All absolute and scaled structural indices were significantly larger (P < 0.05) in athletes with a predominance for normal LV geometry. EF and global ɛ were similar between groups but strain rates (SR) were significantly lower (P < 0.05) in athletes. Lower apical rotation (P < 0.001) and twist (P = 0.010) were exhibited in athletes.

CONCLUSION

Normal EF is explained by divergent effects of LV internal diastolic dimension (LVIDd) and mean wall thickness (MWT) on LV function. Reductions in SR and twist may be part of normal physiological LV adaptation in RFL athletes.

摘要

目的

本研究旨在确定橄榄球运动员的左心室（LV）表型，并通过数学模型来研究 LV 大小、应变（ɛ）和射血分数（EF）之间的关联。

方法和结果

139 名男性运动员接受了超声心动图 LV 评估，包括ɛ成像。非运动员男性被用作对照组。所有绝对和比例结构指数在以正常 LV 几何结构为主的运动员中均显著增大（P < 0.05）。两组的 EF 和整体应变（ɛ）相似，但运动员的应变率（SR）明显较低（P < 0.05）。运动员的心尖旋转（P < 0.001）和扭转（P = 0.010）较低。