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Relevant bibliographies by topics / Flexion-torsion combinées

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Journal articles
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Academic literature on the topic 'Flexion-torsion combinées'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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Journal articles on the topic "Flexion-torsion combinées"

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Graf, Eveline S., Ian C. Wright, and Darren J. Stefanyshyn. "Effect of Relative Marker Movement on the Calculation of the Foot Torsion Axis Using a Combined Cardan Angle and Helical Axis Approach." Computational and Mathematical Methods in Medicine 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/368050.

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The two main movements occurring between the forefoot and rearfoot segment of a human foot are flexion at the metatarsophalangeal joints and torsion in the midfoot. The location of the torsion axis within the foot is currently unknown. The purpose of this study was to develop a method based on Cardan angles and the finite helical axis approach to calculate the torsion axis without the effect of flexion. As the finite helical axis method is susceptible to error due to noise with small helical rotations, a minimal amount of rotation was defined in order to accurately determine the torsion axis l

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Danylov, A. A., V. V. Gorelik, A. V. Shulga, and K. V. Yachna. "Pathologic external tibial torsion as one of the causes of knee joint dysfunction and formation of pronation deformity in children with cerebral palsy." Paediatric Surgery. Ukraine, no. 1(78) (March 28, 2023): 110–18. http://dx.doi.org/10.15574/ps.2023.78.110.

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Introduction. One of the complications of the clinical course of cerebral palsy in children is external torsion of the tibia. The issue of localization and the mechanism of its formation, as well as effective methods of its elimination, is debatable. Purpose - to study the mechanisms of the formation of pathological external torsion of the tibia in children with cerebral palsy, its effect on knee joint contracture and foot deformity, and effective methods of their correction. Materials and methods. The data obtained during the observation of 45 patients (90 cases) aged from 6 to 16 years with

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Veres, Samuel P., Peter A. Robertson, and Neil D. Broom. "The influence of torsion on disc herniation when combined with flexion." European Spine Journal 19, no. 9 (2010): 1468–78. http://dx.doi.org/10.1007/s00586-010-1383-0.

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Levangie, Pamela K. "Four Clinical Tests of Sacroiliac Joint Dysfunction: The Association of Test Results With Innominate Torsion Among Patients With and Without Low Back Pain." Physical Therapy 79, no. 11 (1999): 1043–57. http://dx.doi.org/10.1093/ptj/79.11.1043.

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Abstract Background and Purpose. The purpose of this study was to assess the association between innominate torsion (asymmetric anteroposterior positioning of the pelvic innominates) and the Gillet, standing forward flexion, sitting forward flexion, and supine-to-sit tests. Subjects. A sample of 21- to 50-year-old patients with low back pain (n=150) and a comparison group of patients with upper-extremity impairments (n=138) were recruited from outpatient physical therapy facilities. Methods. The association of single and combined test results with innominate torsion (calculated from pelvic lan

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Hindle, R. J., M. J. Pearcy, J. M. Gill, and G. R. Johnson. "Twisting of the Human Back in Forward Flexion." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 203, no. 2 (1989): 83–89. http://dx.doi.org/10.1243/pime_proc_1989_203_015_01.

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This paper addresses the role of torsion in the production of spinal injury and in particular the possibility of injury resulting from torsion combined with flexion. The back movement of 16 normal male subjects was measured using a non-invasive, three-dimensional measurement system for assessing spinal mobility, the opto-electronic CODA-3 scanner. Measurements were made of the ability to twist the back while standing upright and in two flexed postures. Rotational ability was shown, in general, to be increased in a flexed posture, presumed to be due to an opening of the lumbar zygapophysial joi

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Zhen, Xiao Xia, Rong Hui Wang, and Rui Rao. "Analysis of Shear Force Transfer Mechanism in Bridge Deck of SFRC-Steel Composite Girder." Key Engineering Materials 400-402 (October 2008): 627–32. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.627.

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Based on tension-compression and bending equivalences, an equivalent single material plate is formed to substitute bridge deck of composite girder with steel fiber reinforced concrete (SFRC) and steel. Thickness and elastic modulus of the equivalent plate are then formulated. After three dimensional finite-element analyses of the bridge deck, in terms of shell element membrane effect and girder flexion-torsion theory, combined with compatibility of deformation, single material shell element stress is restored to stresses on SFRC plate and steel plate separately; shear force distribution on she

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Schechtman, Helio, Peter Alexander Robertson, and Neil David Broom. "Quasi-static and cyclic compressive loading studies of the intervertebral disc with combined flexion and torsion." Revista Brasileira de Engenharia Biomédica 28, no. 4 (2012): 311–18. http://dx.doi.org/10.4322/rbeb.2012.038.

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Greatrex, Frederick, Erica Montefiori, Thomas Grupp, Josef Kozak, and Claudia Mazzà. "Reliability of an Integrated Ultrasound and Stereophotogrammetric System for Lower Limb Anatomical Characterisation." Applied Bionics and Biomechanics 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/4370649.

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Background. Lower extremity analysis for preoperative total knee and hip arthroplasty routines can increase surgery success rate and hence reduce associated costs. Current tools are limited by being invasive, limited to supine analysis, or too expensive. This study aimed to propose and validate a device, OrthoPilot®, based on the combined use of a stereophotogrammetric and ultrasound system which can in vivo and noninvasively measure varus/valgus, flexion/extension, femur and tibia torsion, and femur and tibia lengths.Methods. A phantom was measured by four operators to determine the resolutio

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Šećerović, A., A. Ristaniemi, F. Crivelli, et al. "ADVANCED BIOREACTOR STUDIES OF REGION-SPECIFIC RESPONSE IN THE INTERVERTEBRAL DISC TO COMPRESSION, FLEXION/EXTENSION, AND TORSION." Orthopaedic Proceedings 106-B, SUPP_2 (2024): 116. http://dx.doi.org/10.1302/1358-992x.2024.2.116.

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Intervertebral disc (IVD) degeneration is inadequately understood due to the lack of in vitro systems that fully mimic the mechanical and biological complexity of this organ. We have recently made an advancement by developing a bioreactor able to simulate physiological, multiaxial IVD loading and maintain the biological environment in ex vivo IVD models [1].To validate this new bioreactor system, we simulated natural spine movement by loading 12 bovine IVDs under a combination of static compression (0.1 MPa), cyclic flexion/extension (±3˚, ±6˚ or 0-6˚) and cyclic torsion (±2˚, ±4˚ or 0-4˚) for

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Chu, Hsien-Ru, Shean-Juinn Chiou, I.-Hsum Li, and Lian-Wang Lee. "Design, Development, and Control of a Novel Upper-Limb Power-Assist Exoskeleton System Driven by Pneumatic Muscle Actuators." Actuators 11, no. 8 (2022): 231. http://dx.doi.org/10.3390/act11080231.

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An innovative wearable upper-limb power-assist exoskeleton system (UPES) was designed for laborers to improve work efficiency and reduce the risk of musculoskeletal disorders. This novel wearable UPES consists of four joints, each comprising a single actuated pneumatic muscle actuator (PMA) and a torsion spring module driven via a steel cable. Unlike most single-joint applications, where dual-PMAs are driven by antagonism, this design aims to combine a torsion spring module with a single-PMA via a steel cable for a 1-degree of freedom (1-DOF) joint controlled by a proportional-pressure regulat

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Dissertations / Theses on the topic "Flexion-torsion combinées"

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Min, Kyung-Tak. "Optimisation d'un cylindre en sandwich composite soumis à des sollicitations combinées." Compiègne, 1985. http://www.theses.fr/1985COMPI201.

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Xolin, Paul. "Contribution au développement d'une nouvelle génération de limes endodontiques en alliage à mémoire de forme monocristallin cuivreux." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0256.

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Les dernières avancées réalisées dans le domaine de l’instrumentation canalaire ont permis de rendre le traitement endodontique plus rapide et plus efficace. L’amélioration des limes endodontiques au travers des géométries instrumentales, mouvement de travail ou propriétés mécaniques du matériau constitutif de l’instrument ont rendu le traitement plus sûr dans la préservation de l’organe dentaire et des tissus parodontaux environnants. Néanmoins, peu de recherches se sont portées sur l’utilisation d’Alliage à Mémoire de Forme (AMF) différents du Nickel-Titane (Ni-Ti). Ce travail se propose d’é

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Book chapters on the topic "Flexion-torsion combinées"

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Driscoll Christopher, Aubin Carl-Eric, Labelle Hubert, and Dansereau Jean. "Optimized Use of Multi-Functional Positioning Frame Features for Scoliosis Surgeries." In Studies in Health Technology and Informatics. IOS Press, 2010. https://doi.org/10.3233/978-1-60750-573-0-83.

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A multi-functional positioning frame (MFPF) has been developed which includes a number of positioning features allowing for hip flexion and extension, thorax vertical displacement, lateral leg displacement, pelvic torsion and thorax lateral displacement. The objective of this study was to develop a method allowing for optimized combined use of the MFPF features. Finite element models (FEMs) representing the osseo-ligamentous structures of the spine, ribcage, pelvis and lower limbs, including muscles, were created for three different curve types (main thoracic, double major, and triple major) u

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