An EMG-driven Musculoskeletal Model of the Human Lower Limb for the Estimation of Muscle Forces and Moments at the Hip, Knee and Ankle Joints in vivo

Massimo Sartori, Monica Reggiani, David G Lloyd, Enrico Pagello

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Abstract

This work presents the design of a novel neuromusculoskeletal model (NMS) of the human lower limb to estimate muscle forces and moments about the hip, knee and ankle joints. This research shows it is possible to use electromyographic (EMG) signals recorded from 16 mus-cles to drive 34 musculotendon actuators and constrain their operation to simultaneously satisfy the production of moments across several de-grees of freedom (DOF) including: hip adduction-abduction, hip flexion-extension, knee flexion-extension, ankle dorsi-plantar flexion. Past re-search proposed the use single-DOF NMS model to estimate muscle forces and joint moments. However, these models do not properly al-low muscles to operate with respect to all the DOFs associated to the joints they span. This leads to unrealistic estimations of muscle activa-tion patterns and force production dynamics. Our proposed model was able to generate muscle forces that properly satisfied the moments gen-erated at hip, knee and ankle joints during a variety of dynamic motor tasks.
Original languageEnglish
Title of host publicationProceedings of SIMPAR 2010 Workshops
Subtitle of host publicationInternational Conference on Simulation, Modeling, and Programming for Autonomous Robots. Darmstadt (Germany) November 15-16, 2010
Pages137-146
Number of pages10
Publication statusPublished - 2010
Externally publishedYes
Event2nd International Conference on Simulation, Modeling, and Programming for Autonomous Robots, SIMPAR 2010 - Darmstadt, Germany
Duration: 15 Nov 201018 Nov 2010
Conference number: 2

Conference

Conference2nd International Conference on Simulation, Modeling, and Programming for Autonomous Robots, SIMPAR 2010
Abbreviated titleSIMPAR
CountryGermany
CityDarmstadt
Period15/11/1018/11/10

Keywords

  • Human-machine interface
  • Joint moment
  • Muscle force
  • Musculoskeletal model

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