OBJECTIVE: The aim of this study was to analyze biochemical markers as indicators of athletic performance, in light of a clinical context and athletic. METHODS: Samples of peripheral blood (8 mL) and urine (50 mL) were collected from 20 marathon athletes at rest and 15 minutes after half marathon. Following, examination of blood, urine and serum markers of renal function, muscle damage and lipidic profile was carried out. RESULTS: Statistical analysis of the results showed a significant increase (p < […]