Differences between Professional and Amateur Cyclists in Endogenous Antioxidant System Profile
| Autor: | Raquel Ortolano-Ríos, Francisco Javier Martínez-Noguera, Cristian Marín-Pagán, Stéphane P. Dufour, Pedro E. Alcaraz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty Antioxidant Physiology medicine.medical_treatment Clinical Biochemistry Endogeny Biochemistry Article Superoxide dismutase 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Internal medicine medicine reduced glutathione Molecular Biology biology business.industry catalase lcsh:RM1-950 030229 sport sciences Cell Biology Glutathione hemoglobin superoxide dismutase oxidized glutathione 030104 developmental biology Endocrinology lcsh:Therapeutics. Pharmacology chemistry power output Catalase biology.protein Breathing Hemoglobin business Amateur human activities |
| Zdroj: | Antioxidants, Vol 10, Iss 282, p 282 (2021) Antioxidants Volume 10 Issue 2 |
| ISSN: | 2076-3921 |
| Popis: | Currently, no studies have examined the differences in endogenous antioxidant enzymes in professional and amateur cyclists and how these can influence sports performance. The aim of this study was to identify differences in endogenous antioxidants enzymes and hemogram between competitive levels of cycling and to see if differences found in these parameters could explain differences in performance. A comparative trial was carried out with 11 professional (PRO) and 15 amateur (AMA) cyclists. All cyclists performed an endogenous antioxidants analysis in the fasted state (visit 1) and an incremental test until exhaustion (visit 2). Higher values in catalase (CAT), oxidized glutathione (GSSG) and GSSG/GSH ratio and lower values in superoxide dismutase (SOD) were found in PRO compared to AMA (p < 0.05). Furthermore, an inverse correlation was found between power produced at ventilation thresholds 1 and 2 and GSSG/GSH (r = −0.657 and r = −0.635 p < 0.05, respectively) in PRO. Therefore, there is no well-defined endogenous antioxidant enzyme profile between the two competitive levels of cyclists. However, there was a relationship between GSSG/GSH ratio levels and moderate and submaximal exercise performance in the PRO cohort. |
| Databáze: | OpenAIRE |
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