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

Forsythe, L, MacIver, DH, Johnson, C, George, KP, Somauroo, J, Papadakis, M, Brown, B, Qasem, M and Oxborough, D (2018) The relationship between left ventricular structure and function in the elite rugby football league athlete as determined by conventional echocardiography and myocardial strain imaging. International Journal of Cardiology, 261. pp. 211-217. ISSN 0167-5273

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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. © 2017 Elsevier B.V.

Item Type: Article
Uncontrolled Keywords: 1102 Cardiovascular Medicine And Haematology
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Elsevier
Date Deposited: 26 Apr 2018 09:17
Last Modified: 03 Nov 2018 14:36
DOI or Identification number: 10.1016/j.ijcard.2018.01.140
URI: http://researchonline.ljmu.ac.uk/id/eprint/8576

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