The flexible multibody simulation [9] approach can be used in a wide variety of engineering applications. In a previous study of authors [1], flexible multibody simulation approach was used to estimate strains during walking at tibial midshaft. In the previous study, simple muscle models were used in conjunction with a flexible tibia model based on magnetic resonance images (MRI). This study is an extension of the previous developments [1], [2] demonstrating the potential of model improvement by introducing hybrid muscle models, along with the flexible tibia based model on computed tomography (CT). The computed tomography technique allows for the accounting of inhomogeneous density and elasticity in the flexible bone model comparing to magnetic resonance which do not provide any information on material properties. Hybrid muscle configuration used in this study consists of electromyography (EMG) actuated simple muscles configured with open-loop control for soleus, tibialis anterior, gastrocnemius and rectus femoris muscles and closed-loop Hill-based muscles [13] for the remaining lower body muscles. Strain results introduced in the study show good correlation with previous studies.
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ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 30–September 2, 2009
San Diego, California, USA
Conference Sponsors:
- Design Engineering Division and Computers in Engineering Division
ISBN:
978-0-7918-4901-9
PROCEEDINGS PAPER
A Dynamic Simulation of a Human Gait Using the Hybrid Muscle Model and a QCT-Based Flexible Tibia Available to Purchase
Adam Klodowski,
Adam Klodowski
Lappeenranta University of Technology, Lappeenranta, Finland
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Timo Rantalainen,
Timo Rantalainen
University of Jyvaskyla, Jyvaskyla, Finland
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Aki Mikkola,
Aki Mikkola
Lappeenranta University of Technology, Lappeenranta, Finland
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Prasun Dastidar,
Prasun Dastidar
Tampere University Hospital and Pirkanmaa Hospital District, Tampere, Finland
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Ari Heinonen,
Ari Heinonen
University of Jyvaskyla, Jyvaskyla, Finland
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Harri Sievanen
Harri Sievanen
UKK Institute, Tampere, Finland
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Adam Klodowski
Lappeenranta University of Technology, Lappeenranta, Finland
Timo Rantalainen
University of Jyvaskyla, Jyvaskyla, Finland
Aki Mikkola
Lappeenranta University of Technology, Lappeenranta, Finland
Prasun Dastidar
Tampere University Hospital and Pirkanmaa Hospital District, Tampere, Finland
Ari Heinonen
University of Jyvaskyla, Jyvaskyla, Finland
Harri Sievanen
UKK Institute, Tampere, Finland
Paper No:
DETC2009-86831, pp. 1565-1574; 10 pages
Published Online:
July 29, 2010
Citation
Klodowski, A, Rantalainen, T, Mikkola, A, Dastidar, P, Heinonen, A, & Sievanen, H. "A Dynamic Simulation of a Human Gait Using the Hybrid Muscle Model and a QCT-Based Flexible Tibia." Proceedings of the ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 4: 7th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B and C. San Diego, California, USA. August 30–September 2, 2009. pp. 1565-1574. ASME. https://doi.org/10.1115/DETC2009-86831
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