Subject-Specific and COM Acceleration-Enhanced Reflex Neuromuscular Model to Predict Ankle Responses in Perturbed Gait

Lucas Avanci Gaudio, José González-Vargas, M. Sartori, H. van der Kooij

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Subject-specific musculoskeletal models generate more accurate joint torque estimates from electromyography (EMG) inputs in relation to experimentally obtained torques. Similarly, reflex Neuromuscular Models (NMMs) that employ COM states in addition to musculotendon information generate muscle activations to musculoskeletal models that better predict ankle torques during perturbed gait. In this study, the reflex NMM of locomotion of one subject is identified by employing an EMG-calibrated musculoskeletal model in unperturbed and perturbed gait. A COM acceleration-enhanced reflex NMM is identified. Subject-specific musculoskeletal models improve torque tracking of the ankle joint in unperturbed and perturbed conditions. COM acceleration-enhanced reflex NMM improves ankle torque tracking especially in early stance and during backward perturbation. Results found herein can guide the implementation of reflex controllers in active prosthetic and orthotic devices.
Original languageEnglish
Title of host publication2023 International Conference on Rehabilitation Robotics (ICORR)
ISBN (Electronic)979-8-3503-4275-8
DOIs
Publication statusPublished - 8 Nov 2023
Event18th IEEE International Conference on Rehabilitation Robotics, ICORR 2023 - Singapore, Singapore
Duration: 24 Sept 202328 Sept 2023
Conference number: 18

Conference

Conference18th IEEE International Conference on Rehabilitation Robotics, ICORR 2023
Abbreviated titleICORR 2023
Country/TerritorySingapore
CitySingapore
Period24/09/2328/09/23

Keywords

  • 2023 OA procedure

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