COUREUR Study Myocardial Inflammation in Cyclist Part 1

To define the strenuous physical exercise in this study, each participant will be asked to perform two hours of high intensity (HIT)-effort during the endurance exercise of at least 6 to 7 hours. Therefore all participants will have exercise testing approximately 1 week before the physical exercise to set aerobic and anaerobic gas exchange thresholds, as well as VO2max.

Measurements of mass, volumes and function will be obtained of both the left and right ventricles at rest enabling comparisons with cardiac MRI and traditional echo measures.