Relationship between cardiac deformation parameters measured by cardiovascular magnetic resonance and aerobic fitness in endurance athletes

Journal of Cardiovascular Magnetic Resonance

Research

Adam K. McDiarmid¹  Sven Plein¹  Tarique A. Musa¹  Bara Erhayiem¹  Pankaj Garg¹  John P. Greenwood¹  David P. Ripley¹  Laura E. Dobson¹  Peter P. Swoboda¹  Gemma K. Lyall²  Carrie Ferguson²  Rosalind E. Lancaster² 

[1] Multidisciplinary Cardiovascular Research Centre (MCRC) and Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Clarendon Way, LS2 9JT, Leeds, UK;Multidisciplinary Cardiovascular Research Centre (MCRC) and School of Biomedical Sciences, University of Leeds, Clarendon Way, LS2 9JT, Leeds, UK;

关键词: Cardiovascular magnetic resonance;    Tissue tagging;    Feature tracking;    Athlete;    Aerobic capacity;    Lactate threshold;   

DOI  :  10.1186/s12968-016-0266-x

 received in 2016-04-28, accepted in 2016-07-08,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundAthletic training leads to remodelling of both left and right ventricles with increased myocardial mass and cavity dilatation. Whether changes in cardiac strain parameters occur in response to training is less well established. In this study we investigated the relationship in trained athletes between cardiovascular magnetic resonance (CMR) derived strain parameters of cardiac function and fitness.MethodsThirty five endurance athletes and 35 age and sex matched controls underwent CMR at 3.0 T including cine imaging in multiple planes and tissue tagging by spatial modulation of magnetization (SPAMM). CMR data were analysed quantitatively reporting circumferential strain and torsion from tagged images and left and right ventricular longitudinal strain from feature tracking of cine images. Athletes performed a maximal ramp-incremental exercise test to determine the lactate threshold (LT) and maximal oxygen uptake (V̇O2max).ResultsLV circumferential strain at all levels, LV twist and torsion, LV late diastolic longitudinal strain rate, RV peak longitudinal strain and RV early and late diastolic longitudinal strain rate were all lower in athletes than controls. On multivariable linear regression only LV torsion (beta = −0.37, P = 0.03) had a significant association with LT. Only RV longitudinal late diastolic strain rate (beta = −0.35, P = 0.03) had a significant association with V̇O2max.ConclusionsThis cohort of endurance athletes had lower LV circumferential strain, LV torsion and biventricular diastolic strain rates than controls. Increased LT, which is a major determinant of performance in endurance athletes, was associated with decreased LV torsion. Further work is needed to understand the mechanisms by which this occurs.

【 授权许可】

CC BY   
© The Author(s). 2016