Dernières publications

Doctorat en biomécanique

Le département de kinésiologie de l’Université Laval (Québec, Canada) et le Centre interdisciplinaire de recherche en réadaptation et intégration sociale (CIRRIS) offre une bourse de doctorat en biomécanique. Le projet s’intègre dans un programme de recherche ayant pour but de mieux comprendre l’influence des facteurs biomécaniques et des stratégies compensatoires sur l’intégrité articulaire. Un système d’analyse du mouvement 3D, des plates-formes de force et un système électromyographique (EMG) seront utilisés pour l’évaluation de diverses populations dans un contexte dynamique  (marche, escaliers, transition assis-debout). La simulation de plusieurs mouvements pathologiques est prévue à l’aide d’orthèse multi-niveaux (développement via une imprimante 3D)….
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Coping with maternity leave

How do you ensure that staff going on maternity or paternity leave do not get deskilled during their period away from gait analysis? Here’s an idea to provide a regular knowledge update. The Verne mobile consists of  6 fully articulated Verne‘s allowing the user to set them in any desired pose. They are arranged in […]

Where’s the hip joint?

Most biomechanical models used in gait analysis require an estimate of where the hip joint is within the pelvis. The quest for the best equations to do this has become something of a Holy Grail within the gait analysis community. Andriacchi et al. (1980)  and Tylkowski (1982) were probably the first to propose methods for estimating […]

Electing a representative

One of the aspects of gait analysis that I didn’t cover in any particular depth in my book was how to select data from a number of trials that is in someway representative of the patient. I think one of the reasons for this is because I couldn’t easily get my hands on any data […]

Chers amis, C’est avec joie que je mets en ligne cette nouvelle version du site “”. Mis en ligne en 2007, il accusait son âge et les fonctionnalités offertes par cette nouvelle plateforme me permettent aujourd’hui de proposer plus de contenu, plus d’interaction avec vous. Vous retrouverez les anciens articles et le site sera mis à jour plus souvent, notamment avec nombre de didacticiels qui vous permettrons de mieux comprendre la marche humaine en général et les pathologies de la marche en particulier. Je vous souhaite bonne lecture et bonne visite de ce nouvel environnement Fabrice Mégrot

Handbook of Human Motion

By Müller, Bertram, Wolf, Sebastian and a lot of collaborators The Handbook of Human Motion is a large cross-disciplinary reference work which covers the many interlinked facets of the science and technology of human motion and its measurement.  Individual chapters cover fundamental principles and technological developments, the state-of-the-art and consider applications across four broad and interconnected fields; medicine, sport, forensics and animation.  The huge strides in technological advancement made over the past century make it possible to measure motion with unprecedented precision, but also lead to new challenges. This work introduces the many different approaches and systems used in motion capture, including IR and…
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Congrès de l’European Society of Biomechanics (ESB) – Lyon 2016

ESB 2016 will take place at the Cité des Congrès of Lyon, France, from the 10th to 13th of July 2016 and is jointly organized by the European Society of Biomechanics (ESB) and the Société de Biomécanique (SB). Two anniversaries will be celebrated at the occasion of ESB 2016. The ESB is a European society founded in 1976 and will celebrate its 40th anniversary in 2016. The SB is an international society which organizes a congress every year gathering delegates mostly from French speaking countries (Belgium, Canada, France, Switzerland…). The first conference was organized in Lyon in 1976. So the…
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Congrès Posture Equilibre Mouvement – Décembre 2016

La SOFPEL (Société Francophone Posture Equilibre, Locomotion), l’ESCEBD (European Society for Clinical Evaluation of Balance Disorders), la SOFAMEA (Société Francophone d’Analyse du Mouvement chez l’Enfant et l’Adulte) ainsi que le comité d’organisation sont heureux de vous accueillir à Nancy pour le congrès Posture Equilibre Mouvement, les 8, 9, 10 décembre 2016. Le congrès aura lieu à la faculté de médecine de Nancy, 9 avenue de la Forêt de Haye, 54505 Vandoeuvre-lès-Nancy. Le thème du congrès centré sur les Interactions entre les fonctions de contrôle de la posture, de l’équilibre et du mouvement fera l’objet d’exposés didactiques. De plus, une journée…
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Changes in Gait Variability From First Steps to Adulthood: Normative Data for the Gait Variability Index

Gouelle A (1), Leroux J (2), Bredin J (3), Mégrot F (4)(5).
J Mot Behav. 2015 Sep 21:1-7.

The process of learning to walk is ongoing throughout childhood. The Gait Variability Index (GVI ; A. Gouelle et al., 2013) has been proposed to quantify the variability of spatiotemporal parameters (STP) during gait. The authors’ aim was to evaluate the GVI and STP of healthy children and teenagers to (a) determine changes in the GVI with age and to derive normal values in children and (b) to evaluate the influence of STP on the GVI. A total of 140 typically developing children from 1 to 17 years old were categorized into 7 groups of 20 based on age. Spatiotemporal gait parameters were recorded using an electronic walkway. GVI increased and STP changed with age. In the children-teenagers group, the GVI was positively related to step length, speed, and negatively to cadence. Following normalization by lower limb length, correlations were no longer significant. In contrast, raw base of support was not correlated with the GVI but normalized base of support was. A multiple linear regression showed that only age had a direct impact on the GVI, indicating that gait continues to change after 6-7 years. These changes were only demonstrated by the GVI, highlighting its usefulness for the evaluation of gait in young populations.