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Finite Element Modeling for the Simulation of the Quasi-Static Compression of Corrugated Tapered Tubes
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A lower extremity model for muscle-driven simulation of activity using explicit finite element modeling.

Donald R Hume1, Alessandro Navacchia1, Paul J Rullkoetter1

  • 1University of Denver, Center for Orthopaedic Biomechanics, Denver, CO, United States.

Journal of Biomechanics
|January 12, 2019
PubMed
Summary

This study developed a unified computational model for detailed lower extremity biomechanics. The multi-scale finite-element (MSFE) framework accurately simulates muscle forces and joint loading during activities like chair rising and walking.

Keywords:
Finite elementGaitKneeMuscleMusculoskeletal modelingSquatting

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Area of Science:

  • Biomechanics
  • Computational Modeling
  • Musculoskeletal System

Background:

  • Computational modeling estimates joint loads non-invasively.
  • Current methods use disconnected rigid-body dynamic and finite-element (FE) analyses, limiting interaction capture.
  • Multi-scale FE (MSFE) models offer a unified framework to overcome these limitations.

Purpose of the Study:

  • To create an integrated MSFE model of the human lower extremity.
  • To combine optimization, dynamic muscle modeling, and structural FE analysis.
  • To evaluate knee mechanics during activities using the developed framework.

Main Methods:

  • Developed two subject-specific lower extremity FE models in ABAQUS/Explicit.
  • Incorporated detailed muscle representations.
  • Calculated muscle forces, knee joint loading, and articular contact using inverse dynamics and static optimization.

Main Results:

  • Peak quadriceps forces occurred during chair rise and early stance.
  • Peak hamstring forces were observed during gait midstance.
  • Calculated joint forces aligned with telemetric patient data.

Conclusions:

  • Demonstrated the feasibility of detailed quasi-static, muscle-driven simulations within an FE framework.
  • The MSFE model provides a robust approach for analyzing musculoskeletal mechanics.
  • This integrated approach enhances the understanding of joint-level and whole-body interactions.