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Des données anatomiques à la simulation de la locomotion : application à l'homme, au chimpanzé, et à Lucy (A.L. 288-1)

Abstract : The identification of the locomotion laws requires the comprehension of the anatomical structures and the mechanisms involved during this specific movement. ln this respect, experimental studies in biomechanics highlight numerous invariants such as minimizing energy. ln paleoanthropology, comparative approaches are commonly used in order to study the influence of morphology on the movement. Based on observations of modem species, this approach proposes locomotor assumptions for fossil species. However, most of the analyses in paleoanthropology are focused on isolated parts of the skeleton (e.g. the hip, the knee or the pelvis). Consequently, it remains difficult to combine anatomical characteristics of different kind or coming from various body parts. ln this work, we propose to adapt methods of simulation of bipedal locomotion to study the relations between anatomical parameters and rnovement. First, we propose to model skeletons for simulations. Then, we describe a method to generate the movements of the lower limbs starting from known feet trajectories. Last, we depict how this previous method can be used to simulate bipedal locomotion including the calculation of these feet trajectories. After a validation on humans, we propose an application to a chimpanzee and a specimen of Australopithecus afarensis ("Lucy", A.L.288-1). The paleontological application aims at testing the influence of the step length and various reconstructions of skeletons on the simulated parameters. ln addition to the scientific contribution for motion analysis, this work has direct implications in the field of the sports science in order to better understand basic rules involved during motor performance
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https://tel.archives-ouvertes.fr/tel-00198655
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Submitted on : Monday, December 17, 2007 - 4:39:17 PM
Last modification on : Monday, February 15, 2021 - 10:37:38 AM
Long-term archiving on: : Monday, April 12, 2010 - 8:13:05 AM

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  • HAL Id : tel-00198655, version 1

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Guillaume Nicolas. Des données anatomiques à la simulation de la locomotion : application à l'homme, au chimpanzé, et à Lucy (A.L. 288-1). domain_other. Université Rennes 2, 2007. Français. ⟨tel-00198655⟩

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