Development and testing of new upper-limb prosthetic devices: research designs for usability testing

Area of Science:

• Prosthetics and Rehabilitation Engineering
• Human-Computer Interaction
• Biomedical Engineering

Background:

• Upper-limb prosthetics require rigorous evaluation to ensure user effectiveness and satisfaction.
• Existing prosthetic research designs may not fully capture the user experience and functional performance.
• Usability testing offers a structured approach to assess prosthetic device performance from the user's perspective.

Purpose of the Study:

• To define and describe usability testing within the context of upper-limb prosthetics.
• To introduce various research designs and methodologies applicable to usability testing in this field.
• To highlight critical methodological considerations for conducting effective usability studies.

Main Methods:

• Definition and explanation of usability principles.
• Discussion of different research approaches and study designs for usability testing.
• Exploration of methodological factors such as sampling strategies, sample size determination, and selection of usability metrics.
• Comparative analysis of usability testing against other prosthetic research designs.

Main Results:

• Usability testing provides a framework for evaluating prosthetic devices based on user interaction and performance.
• Key methodological considerations including sampling, sample size, and metrics are crucial for valid and reliable results.
• Usability testing offers distinct advantages over other study designs for assessing real-world prosthetic use.

Conclusions:

• Usability testing is a vital research methodology for the development and refinement of upper-limb prosthetics.
• Adherence to methodological considerations ensures the quality and applicability of usability findings.
• Integrating usability testing into prosthetic research enhances the development of more effective and user-centered devices.