Sammanfattning
Strenuous and prolonged exercise like marathon, ultra running and triathlon can lead to changes in biomarkers of cardiac, muscle and kidney functional damage. We
present the data of 30 (15 men, 15 women) participants of the Kalmar Ironman 2015. Pre-race electrocardiograms and echocardiograms showed a high frequency of
abnormalities. Post race elevations of troponin T, creatine kinase, myoglobin, N-terminal prohormone of brain natriuretic peptide, and creatinine returned to normal in
almost all cases within 5-8 days. In all but one participant the troponin T pattern was compatible with the diagnosis of myocardial infarction. It is an up-to-date unanswered
question whether the increase of troponin represents myocardial damage or just is a benign consequence of an intermittent change of the permeability of myocardial cell
membranes.