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Prosthesis usability experience is associated with extent of upper limb prosthesis adoption: A Structural Equation
Linda J Resnik1,2, Matthew Borgia1, Emily L Graczyk3,4
1Providence VA Medical Center, Providence, Rhode Island, United States of America.
Plos One
|June 25, 2024
Summary
Improving upper limb prosthesis usability experience is key to increasing adoption rates. This study found a strong link between usability and adoption, with specific amputation levels and prosthesis types influencing outcomes.
Area of Science:
- Rehabilitation Engineering
- Prosthetics and Orthotics
- Human-Computer Interaction
Background:
- Understanding factors influencing upper limb prosthesis (ULP) adoption is crucial for improving patient outcomes.
- Limited research exists on the relationship between the usability experience of ULPs and their adoption rates.
Purpose of the Study:
- To explore the relationship between prosthesis usability experience and the extent of prosthesis adoption.
- To develop and validate a structural equation model (SEM) to analyze these relationships.
Main Methods:
- A survey was conducted with 402 ULP users, collecting data on prosthesis usability and adoption.
- A structural equation model (SEM) was employed to examine direct, moderating, and mediating effects.
- Usability items were developed and refined through cognitive and pilot testing.
Main Results:
- A significant positive association was found between Prosthesis Usability Experience and Extent of Prosthesis Adoption.
- Amputation level (transhumeral, shoulder, bilateral) and prosthesis type (myoelectric multi-DOF vs. body-powered) significantly affected adoption.
- Myoelectric multi-DOF use moderated the usability-adoption relationship, particularly for bilateral amputations.
Conclusions:
- Enhancing prosthesis usability experience is a critical strategy for increasing ULP adoption.
- Usability measures can identify individuals at risk for low adoption, enabling targeted interventions.
- Future development should prioritize user-centered design to improve prosthesis adoption and functional outcomes.
