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Visual programming for accessible interactive musculoskeletal models.

Julia Manczurowsky1, Mansi Badadhe2, Christopher J Hasson3,4,5

  • 1Department of Physical Therapy, Movement and Rehabilitation Sciences, Northeastern University, 360 Huntington Avenue, 301 Robinson Hall, Boston, MA, 02115-5005, USA.

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|March 23, 2022
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Summary
This summary is machine-generated.

This study developed an interactive musculoskeletal model (IMM) using visual programming, making it accessible for non-experts. The IMM allows control via electromyography (EMG) or keyboard, enhancing research and education in biomechanics.

Keywords:
ElectromyographyEngineeringMusculoskeletal modelingMyoelectricNeuroscienceRehabilitationSimulinkVisual programming

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Area of Science:

  • Biomechanics
  • Computational Neuroscience
  • Rehabilitation Engineering

Background:

  • Musculoskeletal modeling and simulation are essential tools in engineering, neuroscience, and rehabilitation.
  • Interactive musculoskeletal models (IMMs) can be controlled using electromyography (EMG) data.
  • Traditional IMMs often use text-based programming, creating barriers for non-specialist users.

Purpose of the Study:

  • To develop and test an IMM using a visual programming language (Simulink) for improved accessibility.
  • To create an IMM that can be utilized by non-specialists for research and educational purposes.

Main Methods:

  • Developed an IMM using Simulink, a visual programming language.
  • Implemented multiple control modes: keyboard, mouse, and EMG.
  • Included various actuator types: muscle model, force generator, and torque generator.
  • Collected example data using keyboard and EMG control with a participant.

Main Results:

  • The IMM successfully supported a goal-directed task using both keyboard and EMG control.
  • EMG control utilized a low-cost system with consumer-grade sensors and an Arduino microprocessor.
  • Keyboard control limitations included difficulty grading muscle excitation and co-activating antagonist muscles.

Conclusions:

  • The developed visual programming IMM enhances accessibility for non-specialists in musculoskeletal research and education.
  • The IMM provides a flexible foundation for future customization to specific research and educational requirements.