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Influence of the Hip Joint Modeling Approaches on the Kinematics of Human Gait

[+] Author Affiliations
João Costa, Joaquim Peixoto, Pedro Moreira, António Pedro Souto, João Paulo Flores Fernandes

Universidade do Minho, Guimarães, Portugal

Hamid M. Lankarani

Wichita State University, Wichita, KS

Paper No. DETC2015-46340, pp. V006T10A001; 11 pages
  • ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 6: 11th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
  • Boston, Massachusetts, USA, August 2–5, 2015
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5716-8
  • Copyright © 2015 by ASME


The influence of the hip joint formulation on the kinematic response of the model of human gait is investigated throughout this work. To accomplish this goal, the fundamental issues of the modeling process of a planar hip joint under the framework of multibody systems are revisited. In particular, the formulations for the ideal, dry, and lubricated revolute joints are described and utilized for the interaction of femur head inside acetabulum or the hip bone. In this process, the main kinematic and dynamic aspects of hip joints are analyzed. In a simple manner, the forces that are generated during human gait, for both dry and lubricated hip joint models, are computed in terms of the system’s state variables and subsequently introduced into the dynamics equations of motion of the multibody system as external generalized forces. Moreover, a human multibody model is considered, which incorporates the different approaches for the hip articulation, namely ideal joint, dry, and lubricated models. Finally, several computational simulations based on different approaches are performed and the main results presented and compared to identify differences among the methodologies and procedures adopted in this work. In addition some experimental data are presented and analyzed.

Copyright © 2015 by ASME
Topics: Kinematics , Modeling



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