Étude de l'absorption et de l'utilisation de solutions glucosées et gluco-lipidiques lors d'une épreuve de triathlon

Hausswirth Christophe, Lepers Romuald, Satabin P., Guézennec Charles-Yannick. Étude de l'absorption et de l'utilisation de solutions glucosées et gluco-lipidiques lors d'une épreuve de triathlon. In: Les Cahiers de l'INSEP, n°20, 1997. Un sport, deux enchaînements, trois disciplines : le triathlon. Actes du 1er symposium international de l'entraînement en triathlon. pp. 151-152

Functional magnetic resonance imaging of mental strategy in a simulated aviation performance task.

International audienceBACKGROUND: The objective of this study was to analyze the sensory and cognitive functions associated with activated brain regions characterizing mental strategy relative to degree of expertise in aviation-related tasks. METHODS: We used echo-planar functional magnetic resonance imaging (fMRI) technique to examine brain activity in expert pilots (n = 6) compared with novice pilots (n = 6) during performance of a simulated aviation track-following task at 200 knots vs. 100 knots. RESULTS: Expert pilots showed reduced activity in visual and motor regions that contrasted with predominant activation within anterior structures including the frontal and prefrontal cortices; structures involved in visual working memory, planning, selective attention and decision making functions. Novice pilots showed widespread activation of anterior and posterior brain structures, with a rise in activity in the visual, parietal and motor cortices as task difficulty increased. CONCLUSIONS: A high level of performance in the track-following task related to a high degree of expertise in the aviation field. This corresponded to experts performing perceptual and mnemonic processing through a network of specialized functions from visual through multiple prefrontal areas. By contrast, the novice pilots predominantly show activity associated with non-specific perceptual processing and without subsequent representation of selective information in working memory

Analyse de la strategie mentale lors d'une tache simulee de pilotage

SIGLEAvailable from INIST (FR), Document Supply Service, under shelf-number : RP 15241 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

Influence d'une restriction calorique et de la prise de complements energetiques lipidiques ou glucidiques sur la reponse metabolique et hormonale au cours d'un raid a ski alpin

SIGLECNRS RP 174 (177) / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

Effets de la complementation en proteines sur la performance lors d'un raid en altitude

Available at INIST (FR), Document Supply Service, under shelf-number : RP 10664 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueSIGLEFRFranc

Etude du role des apports proteiques alimentaires sur la reponse a l'entrainement physique

Available at INIST (FR), Document Supply Service, under shelf-number : RP 11571 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueSIGLEFRFranc