Calibration and validation of a skeletal multibody model for leg-orthosis contact force estimation
Estimation of contact forces between lower limb and orthosis during gait is useful to prevent skin issues in subjects wearing this type of assistive devices. While inverse-dynamics based gait analysis of multibody models is difficult to apply due to the limited accuracy of motion capture systems, a...
| Autores: | , , , , |
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| Tipo de recurso: | capítulo de libro |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/128056 |
| Acceso en línea: | https://hdl.handle.net/2117/128056 https://dx.doi.org/10.1007/978-3-030-01887-0 |
| Access Level: | acceso abierto |
| Palabra clave: | Biomechanical Skeletal multibody Orthosis Biomecànica -- Aparell locomotor Àrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica |
| Sumario: | Estimation of contact forces between lower limb and orthosis during gait is useful to prevent skin issues in subjects wearing this type of assistive devices. While inverse-dynamics based gait analysis of multibody models is difficult to apply due to the limited accuracy of motion capture systems, a forward-dynamics based analysis in which leg and orthosis are considered as independent entities is shown to provide acceptable results. Contact model parameters are calibrated through comparison of measured and calculated bending torque at the orthosis location where a load cell is installed, and the attained correlation allows to validate the model. |
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