Journal article
Predictive simulation of human walking transitions using an optimization formulation
Structural and Multidisciplinary Optimization, Vol.45(5), pp.759-772
05/2012
DOI: 10.1007/s00158-011-0712-1
Abstract
A general optimization formulation for transition walking prediction using 3D skeletal model is presented. The formulation is based on a previously presented one-step walking formulation (Xiang et al., Int J Numer Methods Eng 79:667–695, 2009b). Two basic transitions are studied: walk-to-stand and slow-to-fast walk. The slow-to-fast transition is used to connect slow walk to fast walk by using a step-to-step transition formulation. In addition, the speed effects on the walk-to-stand motion are investigated. The joint torques and ground reaction forces (GRF) are recovered and analyzed from the simulation. For slow-to-fast walk transition, the predicted ground reaction forces in step transition is even larger than that of the fast walk. The model shows good correlation with the experimental data for the lower extremities except for the standing ankle profile. The optimal solution of transition simulation is obtained in a few minutes by using predictive dynamics method.
Details
- Title: Subtitle
- Predictive simulation of human walking transitions using an optimization formulation
- Creators
- Yujiang Xiang - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design (CCAD) The University of Iowa Iowa City IA 52242 USAJasbir Arora - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design (CCAD) The University of Iowa Iowa City IA 52242 USAHyun-Joon Chung - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design (CCAD) The University of Iowa Iowa City IA 52242 USAHyun-Jung Kwon - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design (CCAD) The University of Iowa Iowa City IA 52242 USASalam Rahmatalla - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design (CCAD) The University of Iowa Iowa City IA 52242 USARajankumar Bhatt - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design (CCAD) The University of Iowa Iowa City IA 52242 USAKarim Abdel-Malek - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design (CCAD) The University of Iowa Iowa City IA 52242 USA
- Resource Type
- Journal article
- Publication Details
- Structural and Multidisciplinary Optimization, Vol.45(5), pp.759-772
- DOI
- 10.1007/s00158-011-0712-1
- ISSN
- 1615-147X
- eISSN
- 1615-1488
- Publisher
- Springer-Verlag; Berlin/Heidelberg
- Language
- English
- Date published
- 05/2012
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Civil and Environmental Engineering; Iowa Technology Institute; Injury Prevention Research Center; Mechanical Engineering
- Record Identifier
- 9983992035102771
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