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- W2015182641 abstract "To assess the validity of the sitting position when testing lumbar braces for the maintenance of lordosis. Twelve young adult subjects participated in the experiment, in which they were seated on force platform. The four experimental conditions (with or without a brace and with or without enforced lordosis) were chosen in order to distinguish between the roles played by lordosis and the brace, respectively. The trajectories of the centre of pressure (CP) were analyzed and compared, in order to assess postural orientation and stabilisation processes. Although no effect was seen in terms of orientation, our data showed that use of a lumbar brace led to a notable reduction in CP displacement along the mediolateral and anteroposterior axes. Lordosis barely affected postural performance and only an increase in the mean CP velocity was observed. Lastly, an analysis of variance failed to reveal an interaction between the “lordosis” and “brace” factors. A lumbar brace (in the absence or presence of lordosis) helps subjects to improve their sitting performance. In contrast to previous studies based on the standing posture, the fact that significant differences were found as a function of brace wear emphasises the discriminant power of the sitting position. This task should therefore be applied more widely in the development of more appropriate, validated equipment for lower back pain sufferers. Mettre en évidence la capacité de la station assise à servir de support pour le test d’une ceinture lombaire lordosante. Douze jeunes adultes ont participé à l’expérience qui consistait à se tenir assis en bougeant le moins possible sur une plateforme de force. Les quatre conditions expérimentales proposées (avec ou sans ceinture, avec ou sans lordose) avaient pour but de différencier le rôle de la lordose et de la ceinture. Les trajectoires du centre des pressions (CP) ont été analysées et comparées pour déterminer les processus d’orientation et de stabilisation posturales. Si aucun effet d’orientation n’est mis en évidence, le port d’une ceinture lombaire offre une réduction notable des déplacements du CP selon les axes médiolatéraux et antéropostérieurs. La mise en lordose n’affecte significativement que la vitesse moyenne de CP qui augmente. Enfin l’Anova ne révèle aucun effet d’interaction entre la lordose et le port d’une ceinture. La ceinture lombaire, qu’elle soit lordosante ou non, permet une meilleure capacité de maintien de la station assise. Contrairement à des études précédentes menées en station debout, l’obtention chez des sujets sains de résultats significatifs selon qu’une ceinture est portée ou non révèle le pouvoir discriminant de la station assise. Cette dernière tâche pourrait donc être privilégiée dans l’objectif de tester ce type de matériel et ainsi permettre une meilleure adéquation vis-à-vis des besoins des patients." @default.
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- W2015182641 date "2010-10-01" @default.
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- W2015182641 title "In healthy subjects, the sitting position can be used to validate the postural effects induced by wearing a lumbar lordosis brace" @default.
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- W2015182641 doi "https://doi.org/10.1016/j.rehab.2010.07.034" @default.
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