Abstract
Aims
Endurance athletes develop cardiac remodeling to cope with increased cardiac output during exercise. This remodeling is both anatomical and functional and shows large interindividual variability. In this study, we quantify local geometric ventricular remodeling related to long-standing endurance training and assess its relationship with cardiovascular performance during exercise.
Methods
We extracted 3D models of the biventricular shape from end-diastolic cine magnetic resonance images acquired from a cohort of 89 triathlon athletes and 77 healthy sedentary subjects. Additionally, the athletes underwent cardio-pulmonary exercise testing, together with an echocardiographic study at baseline and few minutes after maximal exercise. We used statistical shape analysis to identify regional bi-ventricular shape differences between athletes and non-athletes.
Results
The ventricular shape was significantly different between athletes and controls (p < 1e−6). The observed regional remodeling in the right heart was mainly a shift of the right ventricle (RV) volume distribution towards the right ventricular infundibulum, increasing the overall right ventricular volume. In the left heart, there was an increment of left ventricular mass and a dilation of the left ventricle. Within athletes, the amount of such remodeling was independently associated to higher peak oxygen pulse (p < 0.001) and weakly with greater post-exercise RV free wall longitudinal strain (p = 0.03).
Conclusions
We were able to identify specific bi-ventricular regional remodeling induced by long-lasting endurance training. The amount of remodeling was associated with better cardiopulmonary performance during an exercise test.
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Abbreviations
- AUROC:
-
Area under receiver operator characteristic
- ARVC:
-
Arrhythmogenic right ventricle cardiomyopathies
- BSA:
-
Body surface area
- CO:
-
Cardiac output
- CPET:
-
Cardiopulmonary exercise testing
- HR:
-
Heart rate
- LH:
-
Left heart
- LOO-CV:
-
Leave one out cross validation
- LV:
-
Left ventricle
- LVGLS:
-
Left ventricular global longitudinal strain
- LVOT:
-
Left ventricular outflow tract
- MRI:
-
Magnetic resonance imaging
- PCA:
-
Principal component analysis
- PER:
-
Pulmonary extraction ratio
- PLS:
-
Partial least squares
- RA:
-
Right atria
- RH:
-
Right heart
- RV:
-
Right ventricle
- RV-FW:
-
Right ventricular free wall
- RVGLS:
-
Right ventricle global longitudinal strain
- RVOT:
-
Right ventricle outflow tract
- SA:
-
Short axis
- SSA:
-
Statistical shape analysis
- STD:
-
Standard deviation
- VO2 :
-
Oxygen uptake
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Acknowledgements
We thank Dr. Weese and Dr. Groth from Philips Research for the segmentation tool.
Funding
This study was partially supported by the Spanish Ministry of Economy and Competitiveness (Grant DEP2013-44923-P, TIN2014-52923-R; Maria de Maeztu Units of Excellence Programme—MDM-2015-0502), el Fondo Europeo de Desarrollo Regional (FEDER), the European Union under the Horizon 2020 Programme for Research, Innovation (Grant agreement No. 642676 CardioFunXion) and Erasmus+Programme (Framework Agreement number: 2013-0040), “la Caixa” Foundation (LCF/PR/GN14/10270005, LCF/PR/GN18/10310003), Instituto de Salud Carlos III (PI14/00226, PI15/00130, PI17/00675) integrated in the “Plan Nacional I+D+I” and AGAUR 2017 SGR Grant no. 1531.
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ASM, MRL, and FC acquired and measured the echocardiography and MRI controls data. MSDG acquired and analyzed the echo data for the athletes. MSDG, FB, and IB acquired and analyzed the stress test. BDX, SPG, and RJP acquired and analyzed the MRI data. The SSA was done by GB, MAGB, CB, and MDC. All authors participated in the data interpretation, reading, and approval the final manuscript.
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GB and MDC were working for Philips at the time of the work.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee (Comité ético de investigación clínica del Hospital Clínic de Barcelona) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Communicated by Keith Phillip George.
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Bernardino, G., Sanz de la Garza, M., Domenech-Ximenos, B. et al. Three-dimensional regional bi-ventricular shape remodeling is associated with exercise capacity in endurance athletes. Eur J Appl Physiol 120, 1227–1235 (2020). https://doi.org/10.1007/s00421-020-04335-3
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DOI: https://doi.org/10.1007/s00421-020-04335-3