R. Olinescu*, Denisa Talaban**, Stela Niță**, Ghe. Mihăescu***, Alexandra Grigorescu****
Dr. R. Olinescu – Spitalul Clinic Fundeni – București
** Dr. Denisa Talaban, Dr.Stela Niță – Centrul de Cercetări Performanțe Sportive – București
*** Dr.Ghe. Mihăescu – Hippocrate Human and Veterinary Therapeutic Society București
**** Dr. Alexandra Grigorescu – UMP “Carol Dauila”, București
Abstract
The study shows the oxidative stress presented in sportsmen and old people after 65 years. Oxidative stress (OS) was determ ined by measuring the peroxydes, total antioxydants, uric acide and free -SH radicals booth in plasma and urine OS produces and increases of peroxydes booth in plasma and urine and a decreasing of plasmatic antioxydants and -SH free radicals. The presence of the OS shows a growth of free radicals in young sportsmen during competition, that will be equilibrate by a growth of the antioxydants. In old people this disequilibrum is maintained. OS intesity is higher at sportsmen during competition but the restoring of the equilibrium is faster in accordance with the degree of the training. The organic selenium administration compensates partialy and decreases for the intensity of the OS. The entered upon confirms the hypothesis of the high generation of free radicals in growing old and it recommends the decreasing of OS at young sportsmen by a protection with antioxydants as the organic seleniu.