Μελέτη των μεταβολών ορισμένων λιπιδιακών παραμέτρων και του οξειδωτικού stress, πριν και με το πέρας της άσκησης, σε συγκεκριμένους αθλούμενους πληθυσμούς

Abstract

A correlation between regular mild physical exercise and its positive effect on oxidative stress-induced diseases is well accepted. However, there is evidence that the acute post-exercise effects of strenuous activity may have be concerned as deteriorating factors for the oxidative status of the organism.We investigated the alternations of the levels of several oxidative stress markers (total peroxide capacity, MDA, PMN elastase, MPO) as well as lipid biomarkers (lipoproteins, apolipoproteins) which may be influenced by the generalized oxidative reactions in blood after vigorous physical activity, both aerobic and anaerobic.36 football (OSFP and PAO FC) and 12 basketball (Amarousion BC) (high school students) young professional athletes participated in the study. Blood samples were taken 40 minutes before and 15 minutes after the game.Before the game there was no significant difference in any of the measured parameters (apart from total and LDL cholesterol between the two types of exercise). Post-game measurements showed lowered levels of total peroxide capacity (ιmol/L) [78(51) vs 40(40)] and elevated levels of PMN elastase (ng/mL) [21(13) vs 27(25)], only in the football players. Fibrinogen and myeloperoxidase did not change significantly.Acute post-exercise effects on oxidative biomarkers are differentiated by the type and the duration of the exercise. Moreover, different pathways are activated by the induced oxidative stress every time, so there is not always an accordance of all respective markers.