Article (Scientific journals)
A finite element model of the lower limb during stance phase of gait cycle including the muscle forces
Diffo Kaze, Arnaud; Maas, Stefan; Arnoux, Pierre-Jean et al.
2017In BioMedical Engineering OnLine, 16 (138)
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Keywords :
Finite element; musculoskeletal model; rigid body; muscle forces; stance phase
Abstract :
[en] Abstract Background Results of finite element (FE) analyses can give insight into musculoskeletal diseases if physiological boundary conditions, which include the muscle forces during specific activities of daily life, are considered in the finite element modelling. So far, many simplifications of the boundary conditions are currently made. This study presents an approach for FE modelling of the lower limb for which muscle forces were included. Method The stance phase of normal gait was simulated. Muscle forces were calculated using a musculoskeletal rigid body (RB) model of the human body, and were subsequently applied to a FE model of the lower limb. It was shown that the inertial forces are negligible during the stance phase of normal gait. The contact surfaces between the parts within the knee were modelled as bonded. Weak springs were attached to the distal tibia for numerical reasons. Results Hip joint reaction forces from the RB model and those from the FE model were similar in magnitude with relative differences less than 16%. The forces of the weak spring were negligible compared to the applied muscle forces. The maximal strain was 0.23% in the proximal region of the femoral diaphysis and 1.7% in the contact zone between the tibia and the fibula. Conclusions The presented approach based on FE modelling by including muscle forces from inverse dynamic analysis of musculoskeletal RB model can be used to perform analyses of the lower limb with very realistic boundary conditions. In the present form, this model can be used to better understand the loading, stresses and strains of bones in the knee area and hence to analyse osteotomy fixation devices.
Disciplines :
Mechanical engineering
Author, co-author :
Diffo Kaze, Arnaud ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit ; Centre Hospitalier de Luxembourg > Department of Orthopedic Surgery
Maas, Stefan ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Arnoux, Pierre-Jean;  UMRT24 IFSTAR-Université de la Méditerranée > Laboratoire de Biomécanique Appliquée
Wolf, Claude ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Pape, Dietrich;  Centre Hospitalier de Luxembourg > Department of Orthopedic Surgery
External co-authors :
yes
Language :
English
Title :
A finite element model of the lower limb during stance phase of gait cycle including the muscle forces
Publication date :
07 December 2017
Journal title :
BioMedical Engineering OnLine
ISSN :
1475-925X
Publisher :
BioMed Central, London, United Kingdom
Volume :
16
Issue :
138
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 14 December 2017

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