Suivi des troubles métaboliques induits par un ultra trail pendant 28 jours

ConclusionLe taux de sélénium diminue significativement après un ultra trail et ce taux reste abaissé jusqu’à 28 jours après l’arrivée. Les autres perturbations biologiques observées sont plus transitoires.SummaryObjectivesThe aim of this work was to assess the biologic impact of an ultra marathon race during a 28 days period. The main objective was the measurement in serum Selenium levels changes, secondary objectives were the study of in zinc, vitamin B12, blood ionogram, and marker elements of inflammation changes for 28 days.Materials and method We conducted our study in runners of a 170 km ultra marathon race with nearly 10,000 meters of elevation gain. One hundred six runners were followed from the day before the race until 28 days after the race. Questionnaires and blood samples were collected at inclusion (D0), after crossing the finish line (D1), then on D7 and D28.ResultsThe modifications of the different biological parameters were analyzed using linear mixed models. Selenium levels dropped by 12.7 % (P < 0.001) between D0 and D1 and dropped even further on D7 and D28 (P < 0.001). Serum iron levels dropped by 8 % (P = 0.007) on D1 and dropped by 32 % on D7 (P < 0.001). Zinc levels dropped by 20.8 % between D0 and D1 (P < 0.001), but returned to normal baseline on D7. Vitamin B12 levels did not decrease throughout the follow-up. An inflammatory syndrome was observed...
Source: Science and Sports - Category: Sports Medicine Source Type: research