Long distance training associated to HIIT protocol does not induce changes in blood biochemical markers in adult marathoners

Abstract

Objective: to verify blood markers during a 12-week training protocol and after Sao Paulo Marathon. Methods: Blood samples of 9 male marathoners were collected before (C1) and after (C2) 12-week training protocol, before (C3) and after (C4) marathon. Muscle and liver damage markers (creatine kinase [CK-MM], aspartate aminotransferase [AST], alanine aminotransferase [ALT]), oxidative stress levels (thiobarbituric acid reactive substances [TBARS]) and serum iron concentration were measured. Results: changes were identified comparing moment C4 to other moments for CK-MM and iron. For AST, ALT, and TBARS no differences were identified. Conclusion: strenuous exercises might elicit changes on blood markers, needing follow up strategies to avoid impairments to athletes’ performance and health.

Social aspects and sports performance: the principle of social-corporeal individuality

“…Studies centered on biomechanical, physiological, and technical aspects of running (Manechini et al, 2020) and trail running are predominant in the academic literature, with the use of equipment, emphasizing the improvement of performance or the prevention of lesions (Mo et al, 2021;Lima et al, 2021;Weir et al, 2020;Jewell et al, 2019;Vercruyssen et al, 2014;Daviaux et al, 2013). However, studies where sports are associated to social and cultural aspects have also been observed, though to a lesser extent (Hockey and Allen-Collinson, 2016;Davies et al, 2019;Deelen et al, 2019;King and Weedon, 2021;O'Brien et al, 2021).…”