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Influence de la disponibilité en glucides sur la performance : nouvelles stratégies d’apports glucidiques en fonction des besoins de la programmation d’entraînement

Abstract : The aim of the present work is to study the impact of the availability of carbohydrates on performance and on the development of training adaptations. The first section of this thesis aimed at defining the optimal recovery strategies between training sessions for elite BMX pilots. The results revealed that the nutritional strategy is one of the most efficient recovery strategies leading to a lesser decrease in power output. The second section of this thesis investigated the impact of a chronic periodization of carbohydrate intake, through the “Sleep-Low” strategy, on endurance performance and immune function. The “Sleep-Low” strategy consists in specific training sessions performed under low carbohydrate availability, notably during recovery period and low intensity prolonged sessions. All subjects training under the “Sleep-Low” strategy improved their performance on a 10km running trial and on a 20km cycling time trial. This improved performance is associated with a modification of pacing strategy during the 20km cycling time trial toward higher power output. The results suggested a modification of perception of effort after training under the “Sleep-Low” strategy: despite an improvement of performance, participants did not perceive the effort as more difficult. These results are associated to a decrease in fat mass. The study #3 confirmed that the periodization of carbohydrate intake did not impair immune function or sleep efficacy. All the results of the four studies bring new elements in the evolution of carbohydrate recommendations. These works are in the line of a manipulation of carbohydrate availability according to the work required
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Submitted on : Monday, March 20, 2017 - 4:21:48 PM
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Laurie-Anne Marquet. Influence de la disponibilité en glucides sur la performance : nouvelles stratégies d’apports glucidiques en fonction des besoins de la programmation d’entraînement. Education. COMUE Université Côte d'Azur (2015 - 2019), 2016. Français. ⟨NNT : 2016AZUR4144⟩. ⟨tel-01492893⟩

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