2706 km cycling in two weeks: effects on cardiac function in six elderly male athletes Sport has a non-underestimated influence on the heart.A Danish group has studied six older athletes who have completed around 2700 radikilometers for 14 days. It turned out that the left ventricle increased to size.In addition, there was a temporary increase in cardiac biomarkers (troponin T, creatine kinase-myocardial gang and N-terminal pro-brain-natriuretic peptide). The plasma concentrations of cholesterol and lipoprotein cholesterol were significantly lower after workout. The systolic blood pressure was unchanged, but the diastolic pressure was significantly lower after workout than at the beginning of the study. Important are the favorable reduction of the blood fats and the reduction of diastolic blood pressure. The study can be found under https://pubmed.ncbi.nlm.nih.gov/29770745/