1. Antioxidants Markers of Professional Soccer Players During the Season and their Relationship with Competitive Performance
- Author
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Eduardo Sáez de Villarreal, Guillermo De Castro-Maqueda, Cristina Casals, José V. Gutiérrez-Manzanedo, Jesús Gustavo Ponce-González, Juan Corral-Pérez, Didáctica de la Educación Física, Plástica y Musical, [Ponce-Gonzalez,JG, Corral-Pérez,J, Casals,C] MOVE-IT Research group and Department of Physical Education, Faculty of Education Sciences University of Cadiz, Cádiz, Spain. [Ponce-Gonzalez,JG, Casals,C] Biomedical Research and Innovation Institute of Cádiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cádiz, Spain. [de Villarreal,ES] Physical Performance & Sports Research Center. Universidad Pablo de Olavide, Faculty of Sport, Seville, Spain. [Gutierrez-Manzanedo,JV, and Castro-Maqueda,G] Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Cádiz, Spain.
- Subjects
Glutatión ,Check Tags::Male [Medical Subject Headings] ,Physical Therapy, Sports Therapy and Rehabilitation ,Phenomena and Processes::Physiological Phenomena::Nutritional Physiological Phenomena::Diet [Medical Subject Headings] ,Deportes de equipo ,Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings] ,Analytical, Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Physical Examination::Body Constitution::Body Weights and Measures::Body Size::Body Height [Medical Subject Headings] ,Phenomena and Processes::Metabolic Phenomena::Oxygen Consumption [Medical Subject Headings] ,Physiology (medical) ,elite athletes ,oxidative stress ,Anthropology, Education, Sociology and Social Phenomena::Human Activities::Leisure Activities::Recreation::Sports::Soccer [Medical Subject Headings] ,glutathione ,Phenomena and Processes::Metabolic Phenomena::Metabolism::Oxidative Stress [Medical Subject Headings] ,Phenomena and Processes::Metabolic Phenomena::Body Composition [Medical Subject Headings] ,Geographical Locations::Geographic Locations::Europe::Spain [Medical Subject Headings] ,Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Regression Analysis [Medical Subject Headings] ,Capacidad de absorción de radicales de oxígeno ,Estrés oxidativo ,Chemicals and Drugs::Amino Acids, Peptides, and Proteins::Peptides::Oligopeptides::Glutathione::Glutathione Disulfide [Medical Subject Headings] ,Atletas ,Section II - Exercise Physiology & Sports Medicine ,Chemicals and Drugs::Chemical Actions and Uses::Specialty Uses of Chemicals::Protective Agents::Antioxidants [Medical Subject Headings] ,Phenomena and Processes::Biological Phenomena::Ecological and Environmental Phenomena::Environment::Climate::Seasons [Medical Subject Headings] ,total antioxidant capacity ,team sports ,human activities - Abstract
The aim of this study was to assess antioxidant markers before and after a mid-season of professional soccer players from the 3rd Spanish Division, and to correlate antioxidant markers with competitive performance. Sixty-five male players (age = 25.3 ± 4.2 yr, body mass = 73.2 ± 6.7 kg, body height = 177.8 ± 5.7 cm) from three soccer clubs from Cádiz (Spain) participated in the study. Body composition, maximal aerobic capacity (VO2max), and baseline antioxidant blood markers (Total Antioxidant Status (TAS) and Reduced glutathione/Oxidized glutathione ratio) were assessed in the first week of the championship season (pre-test) and after 18 weeks in the mid-season (post-test). Soccer performance was registered according to the official classification ranking at both the mid-season and at the end of the season; ranking positions for Team A were 2nd and 1st, for Team B were 5th and 5th, while for Team C were 12th and 14th, respectively. Regression analyses showed that TAS and VO2max were able to independently predict (p < 0.05) performance in our participants. Moreover, antioxidant levels showed significant main effects on performance (p < 0.001); where a higher antioxidant capacity was observed in the best performance soccer team, both before and after the mid-season. Notwithstanding, the competitive period compromised the antioxidant status since TAS levels significantly decreased after the 18-week training program and competition compared with baseline values in all soccer teams (p < 0.001). These results suggest the need of monitoring antioxidants in soccer players to prevent excessive oxidative stress and cellular damage which could compromise success in competition, by adjusting the training loads, diet or ergogenic aids, if needed.
- Published
- 2021