Right Ventricular Diastolic Dysfunction after Marathon Run.
Zuzanna Lewicka-Potocka1,2, Alicja Dąbrowska-Kugacka1, Ewa Lewicka1
1Department of Cardiology and Electrotherapy, Medical University of Gdańsk, 80-210 Gdańsk, Poland.
Summary
Marathon running can impair heart diastolic function, primarily affecting the right ventricle. Runners with pre-existing right ventricular diastolic dysfunction or septal hypertrophy may experience more significant post-race cardiac fatigue.
Area of Science:
- Cardiology
- Sports Medicine
- Physiology
Background:
- Marathon running's impact on cardiac performance is debated.
- Post-race diastolic function requires further investigation.
- Understanding cardiac adaptations to endurance events is crucial.
Purpose of the Study:
- To evaluate marathon running's effect on biventricular diastolic function.
- To identify the predominantly affected ventricle post-marathon.
- To assess changes in the interventricular septum (IVS) function.
Main Methods:
- Echocardiography in 34 male amateur runners before, immediately after, and 2 weeks post-marathon.
- Assessment of biventricular diastolic function using Doppler indices and heart rate-adjusted isovolumetric relaxation time (IVRTc).
Main Results:
- Post-run IVRTc significantly prolonged at the right ventricular (RV) free wall and IVS, but not the left ventricle.
- Post-run IVRTc_IVS correlated with IVRTc_RV.
- Longer post-race IVRTc_IVS observed in participants with baseline measurable IVRT_RV or IVS hypertrophy.
Conclusions:
- Marathon running predominantly impacts RV diastolic function.
- Individuals with baseline RV diastolic alterations or IVS hypertrophy may experience greater post-race diastolic fatigue.
- Further research into cardiac recovery and adaptation post-endurance events is warranted.
Keywords:
amateur runnersdiastolic functionisovolumic relaxation timemarathon runmyocardial performance indexrelaxationright ventricleMore Related Videos
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