**Appendix A**

This is a pilot study from a much larger research project in a doctoral study conducted within the "Grigore T. Popa" University of Medicine and Pharmacy in Ias,i, Romania, entitled "The evaluation of the correlations between the cardiac biomarkers and the risk of cardiovascular events during sustained physical effort", under the direct coordination and supervision of Professor Habil. Florin Mitu, MD, PhD.
