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Updated: Oct 13, 2025

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
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Evaluation of User-Prosthesis-Interfaces for sEMG-Based Multifunctional Prosthetic Hands.

Julio Fajardo1,2, Guillermo Maldonado1, Diego Cardona1

  • 1Turing Research Laboratory, FISICC, Galileo University, Guatemala City 01010, Guatemala.

Sensors (Basel, Switzerland)
|November 13, 2021
PubMed
Summary

This study introduces a new method to assess the user-friendliness of upper-limb bionic prostheses. The research aims to improve assistive device design by evaluating user workload and subjective feedback.

Keywords:
assistive roboticselectromyographyupper-limb prosthesisuser-prosthesis interface

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Area of Science:

  • Biomedical Engineering
  • Human-Computer Interaction
  • Rehabilitation Technology

Background:

  • Complex user interfaces and operating modes of assistive devices, like intelligent prostheses, often lead to patient abandonment.
  • This hinders daily living activities for individuals with limb impairments.

Purpose of the Study:

  • To propose a methodology for evaluating the impact of various factors on workload when using upper-limb bionic prostheses.
  • To determine the user-friendliness of different prosthetic interfaces for unilateral transradial amputees.
  • To compare subjective feedback between limb-impaired and healthy subjects regarding prosthetic use.

Main Methods:

  • A standardized 3D-printed terminal device was adapted across different user-prosthesis-interface configurations to ensure consistent testing.
  • Workload was evaluated based on diverse aspects of the user interface and operating modes.
  • Subjective opinions were collected from both limb-impaired individuals and healthy controls.

Main Results:

  • The proposed methodology allows for a systematic evaluation of prosthetic interface usability.
  • Comparison between limb-impaired and healthy subjects revealed potential discrepancies in subjective feedback.
  • The study provides insights into factors influencing user acceptance and adherence to bionic prostheses.

Conclusions:

  • A user-centered approach to prosthetic interface design is crucial for improving patient adherence.
  • Further research is needed to understand and address the differing perceptions between user groups.
  • This evaluation framework can guide the development of more intuitive and effective upper-limb assistive devices.