Show simple item record

dc.contributor.authorAlonso, Javier
dc.contributor.authorRomero, Francisco
dc.contributor.authorPàmies Vilà, Rosa
dc.contributor.authorLugrís, Urbano
dc.contributor.authorFont Llagunes, Josep Maria
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica
dc.identifier.citationAlonso, J. [et al.]. A simple approach to estimate muscle forces and orthosis actuation in powered assisted walking of spinal cord-injured subjects. A: EUROMECH Colloquium. "Biomechanics of Human Motion". Ponta Delgada: 2011, p. 1-16.
dc.description.abstractSimulation of walking in individuals with incomplete spinal cord injuries (SCI) wearing an active orthosis is a challenging problem from both the analytical and the compu-tational points of view, due to the redundant nature of the simultaneous actuation of the two systems. The objective of this work is to quantify the contributions of muscles and active or-thosis to the net joint torques, so as to assist the design of active orthoses for SCI. The func-tional innervated muscles of SCI patients were modeled as Hill-type actuators, while the idle muscles were represented by stiff and dissipative elements. The orthosis was included as a set of external torques added to the ankles, knees and hips to obtain net joint torque patterns sim-ilar to those of normal unassisted walking. The muscle-orthosis redundant actuator problem was solved through a physiological static optimization approach, for which several cost func-tions and various sets of innervated muscles were compared.
dc.format.extent16 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica
dc.subject.lcshSpinal Cord Injuries
dc.subject.lcshMusculoskeletal modeling
dc.titleA simple approach to estimate muscle forces and orthosis actuation in powered assisted walking of spinal cord-injured subjects
dc.typeConference lecture
dc.subject.lemacEnginyeria mecànica
dc.contributor.groupUniversitat Politècnica de Catalunya. GREVTAM - Grup de Recerca en Vibracions i Teoria i Anàlisis de Màquines
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorAlonso, J.; Romero, F.; Pàmies-Vilà, R.; Lugrís, U.; Font-Llagunes, J.M.
upcommons.citation.contributorEUROMECH Colloquium
upcommons.citation.pubplacePonta Delgada
upcommons.citation.publicationNameBiomechanics of Human Motion

Files in this item


This item appears in the following Collection(s)

Show simple item record

Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain