TY - JOUR AU - Pigozzi, F. A2 - Pigozzi, F. A2 - Rizzo, M. A2 - Fagnani, F. A2 - Parisi, A. A2 - Spataro, A. A2 - Casasco, M. A2 - Borrione, P. DB - BISp DP - BISp KW - Aktivität, körperliche KW - Endothelin KW - Herz-Kreislauf-System KW - Krankheit, chronische KW - Kreislauferkrankung KW - Prävention KW - Sportmedizin KW - Training, sportliches KW - Trainingseffektivität KW - Untersuchung, empirische LA - eng TI - Endothelial (dys)function : the target of physical exercise for prevention and treatment of cardiovascular disease TT - Endothelial (Dys) Funktion : das Trainingsziel für Prävention und Behandlung von Herz-Kreislauferkrankungen PY - 2011 N2 - AIM: Endothelial dysfunction has been recognized as the early event and the common feature of chronic disorders associated with increased risk for atherosclerotic heart diseases. While the beneficial effects of aerobic, moderate-intensity exercise on endothelial function are very well assessed, an intriguing doubt exists about the effects of long-term high-intensity physical activity. The aim of the present study was to compare recent findings of our group concerning homocysteine levels in athletes to available data in literature in order to clarify the meaning of such apparent metabolic paradox. METHODS: The studied population included 185 athletes: 180 healthy age and sex matched subjects served as control group. The assessed variables included homocysteine, folate, vitamin B12, total and HDL cholesterol, LDH, CPK and IL-6. Results were compared to available data in literature. RESULTS: The prevalence of hyperhomocysteinemia (>15 µmol/L) in athletes and controls was 55% and 15%, respectively. In the studied population, no correlation was found between homocysteine and all the other investigated variables. CONCLUSION: The present results suggest that intensive physical training could induce a pathological increase of homocysteine levels. With this regard, it has been suggested that the observed increases of cardio-vascular risk factors in athletes could represent an adaptative feature marker of muscle demand but would not actually lead to endothelial damage. This remains, however, a speculative hypothesis and further analysis are needed in order to clarify the clinical significance of those observations in order to better preserve the athletes immediate and future health. Verf.-Referat SP - S. 260-267 SN - 0022-4707 JO - The Journal of sports medicine and physical fitness IS - 2 VL - 51 M3 - Gedruckte Ressource ID - PU201303001521 ER -