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Impact du type de surface sur la réponse à l’exercice : du muscle au mouvement

Abstract : Sports surface properties can substantially alter the overall performance and risk of injury. Surface mechanical properties influence the loading of the human musculoskeletal system by modulating the amount of foot-impact energy transmitted to the athlete. Natural grass and synthetic turf are commonly used pitches in football and rugby. More recently, reinforced natural grass technology has been used at the elite-level facilities, but its influence on player is not well defined. This thesis aimed at evaluating the influence of three different surfaces (reinforced natural grass, synthetic turf and athletic track) on the muscle-tendon interactions and neuromuscular coordination of gastrocnemius medialis (GM) and vastus lateralis (VL) muscles during landings and jumping tasks. Analysis of dynamic ultrasound imaging, 2D kinematics and electromyographic data showed that: i) surface mechanical properties influenced muscle-tendon interactions as well as the level of muscle activity; ii) the reinforced natural grass surface seems to optimize the muscular response during the movement and iii) GM and VL muscles displayed specific behaviors relative to the type of movement, its intensity and the type of surface. This emphasizes that the human response cannot be predicted by only analyzing the mechanical surface properties and highlights the important role of in vivo ecological testing to better understand player-surface interaction.
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Submitted on : Wednesday, February 12, 2020 - 3:40:32 PM
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  • HAL Id : tel-02476272, version 1

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Enzo Hollville. Impact du type de surface sur la réponse à l’exercice : du muscle au mouvement. Anatomie, Histologie, Anatomopathologie [q-bio.TO]. Université Sorbonne Paris Cité, 2019. Français. ⟨NNT : 2019USPCB018⟩. ⟨tel-02476272⟩

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