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Evaluation de l’asymétrie articulaire et musculaire au cours d’exercices exhaustif en cyclisme : apports de l’approche expérimentale et de la modélisation musculosquelettique

Abstract : The high-level cyclist main goal is to win and optimize his performance. A question often raised by the athlete and his coaching is the link between asymmetry, performance and health. In this context, we analyze the kinematic and muscular adaptation of the dominant leg of professional cyclist during the incremental test to exhaustion of the FFC. The results showed that the increase of power output modifies the muscular coordination before impacting joint kinematics. Then, wepropose a new methodology to study the kinematic evolution of the spatio-temporel asymmetry during this test. The results showed that asymmetry level is greater outside the sagittal plane, which can creat a risk of injuries mainly for the knee. Finally, we examine the influence of fatigue on the level of muscular asymmetry though musculosketal modeling on a population of high level cyclists. Results showed that muscle asymmetry is different between electromyographic and musculoskeletal analysis. Moreover, the dominant side has a higher level of muscle strength and intersegmental reactions. From a general point of view, the methodologies used in this manuscipt have a direct application for cycling. However, they can be reused in other activities, from a performance and injury prevention viewpoint.
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Camille Pouliquen. Evaluation de l’asymétrie articulaire et musculaire au cours d’exercices exhaustif en cyclisme : apports de l’approche expérimentale et de la modélisation musculosquelettique. Education. Université Rennes 2, 2017. Français. ⟨NNT : 2017REN20064⟩. ⟨tel-01743785⟩

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