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Related Experiment Video

Updated: Jun 22, 2025

Determining and Controlling External Power Output During Regular Handrim Wheelchair Propulsion
08:55

Determining and Controlling External Power Output During Regular Handrim Wheelchair Propulsion

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A study on the formative usability testing for modular powered wheelchair.

Jin Hong Kim1, Yu Ri Kim1, Mi Hyang Han2

  • 1Rehabilitation Medical Research Center, Incheon Hospital, Korea Workers' Compensation and Welfare Service, Incheon, Republic of Korea.

Disability and Rehabilitation. Assistive Technology
|July 5, 2024
PubMed
Summary

This study evaluated a modular powered wheelchair, finding that while users mastered driving, healthcare professionals and caregivers struggled with assembly. Design improvements are needed for better safety and convenience in mobility aids.

Keywords:
Mobility aidsaccessibilityformative usability testingpowered wheelchairuser-centered design

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Area of Science:

  • Assistive Technology
  • Rehabilitation Engineering
  • Human Factors Engineering

Background:

  • Rising prevalence of mobility impairments necessitates advanced, user-friendly mobility aids.
  • Lightweight, portable powered wheelchairs are crucial for enhancing independence and accessibility for individuals with disabilities.
  • Early assessment of new assistive devices is vital for successful integration into clinical practice and user support.

Purpose of the Study:

  • To conduct an early health technology assessment and formative usability evaluation of a modular powered wheelchair.
  • To evaluate user satisfaction and identify areas for design improvement in a detachable powered wheelchair.
  • To detect potential errors and gather feedback for future iterations of the powered wheelchair.

Main Methods:

  • A mixed-methods approach involving 16 participants (users, healthcare professionals, caregivers).
  • Evaluation of wheelchair functionality across diverse scenarios, focusing on safety, effectiveness, and convenience.
  • Task performance analysis and satisfaction surveys to gauge user experience and identify usability challenges.

Main Results:

  • Powered wheelchair users demonstrated proficiency in driving and power control tasks.
  • Healthcare professionals and caregivers reported difficulties with the wheelchair's assembly and disassembly processes.
  • User satisfaction was mixed, with specific concerns raised about frame durability, seat comfort, and control mechanisms.

Conclusions:

  • The modular powered wheelchair shows potential but requires design refinement to address usability issues identified by non-user groups.
  • Addressing user feedback on safety, durability, and comfort is essential for improving overall device satisfaction.
  • Further evaluation of advanced prototypes is recommended to enhance the device's market readiness and clinical utility.