| Autor: |
gajdos t, Hays a, Pomportes, Jeanick Brisswalter, Karen Davranche |
| Přispěvatelé: |
Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU), Laboratoire de psychologie cognitive (LPC), Laboratoire Motricité Humaine Expertise Sport Santé (LAMHESS), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université de Toulon (UTLN)-Université Côte d'Azur (UCA), Université Côte d'Azur (UCA), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Université Côte d'Azur (UCA)-Université de Toulon (UTLN)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA) |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Popis: |
To assess the influence of carbohydrate-electrolyte (CHO-E) intakes on cognitive and physical performances, we carried out an ecological protocol simulating the load variations of a biking race. Eight well-trained athletes completed an outdoor mountain biking time-trial race (TT) (19.6 ± 0.40 km length; 81 min ± 15 min) interspersed with three 10 min varied-load cycling exercises while performing a Simon task and a Critical Flicker Fusion task in laboratory. A splitted drink of 1150 ml of either 7% CHO-E solution (fructose 89%, maltodextrin 11%) or placebo (PL) was administered. Results suggest that the TT induces a decrease of cortical arousal (p = 0.28) and an impairment of efficiency (p < .001) during a decision-making task in the PL condition, while the reverse was observed with CHO-E ingestions. Furthermore, a better accuracy (p = .05) and a lower perceived effort (p = .05) were also observed with CHO-E intakes whatever the TT duration. As a conclusion, ingestion of a 7% CHO-E solution during a pro-longed outdoor TT decreases perceived effort and restricts exercise-induced cognitive performance impairment. CHO-E ingestion appears to be an effective means of delaying the central nervous system fatigue during high-intensity intermittent exercise per-formed in an ecological context. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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