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OpenTrials
Completed

NCT Number: NCT07011446

Usability Evaluation of the Safer Seat

This is an initial usability assessment of a vehicle Seat Transfer device, the Safer Seat. The study will involve target end users (individuals with mobility impairments) trialing the Safer Seat and providing feedback via the Technology Acceptance Model Survey's Modified from Davis (1985) and brief qualitative interview.

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Key information

Conditions

Impaired Mobility Impaired Balance

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Univeristy of Pittsburgh

Pittsburgh, Pennsylvania, 15203, United States

About this study

This study investigates the initial usability of the Safer Seat vehicle transfer aid. Participants with impaired mobility, strength, or balance are being asked to transfer onto and off of a vehicle seat with and without the device to trial its usability. In addition, transfers are doing rated by a licensed occupational therapist according to the Physical Mobility Scale to determine if independence level is affected. Usability evaluation is being done both qualitatively and quantitatively using Technology Assessment Surveys and a semi-structured interview. Insight gained through this initial trial will be used to refine the design of the Safer Seat.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 18 years of age or older
  • Currently living with impaired mobility, strength, or balance
  • Self-reported ability to complete transfers at modified independent (independent with the use of an assistive device) or minimal assist (a small amount of assistance from another person) level

Exclusion criteria

-

Treatment and study plan

Safer Seat Usability Trial

Device

Participants will be asked to transfer onto/off of the vehicle seat using their normal method of transfer and then to trial transferring onto/off of a vehicle seat with the Safer Seat 1 one or more times with study personnel. Demographic data will be recorded for all participants to include age, sex, and type of mobility disability. Transfers will be observed by the research personnel and success in transfers will be recorded according to the Physical Mobility Scale.

Usefulness and usability of the Safer Seat transfer experience will be reported by participants via Technology Acceptance Model Surveys; and participants will engage in a brief semi structured interview that will be audio recorded and transcribed via Microsoft Teams.

Primary outcomes

  1. Physical Mobility Scale

    Time frame: Day 1

    Used to rate ability level in sit to stand and stand to sit transfers from 0 if not able to bear weight, to 5 if independent and not needing to use upper extremities for assistance.

Secondary outcomes

  1. Technology Acceptance Model Perceived Ease of Use, Usefulness, and Attitudes Toward Use questionnaires

    Time frame: Day 1

    Modified from Davis (1985) surveys to assess Perceived Ease of Use, Perceived Usability, and Attitudes Toward. Survey item responses on 5-item likert scale. Scoring progresses from Strongly Disagree (1) to Strongly Agree (5). For most items "Strongly Agree" indicase the individual favors the intervention. There are a few items phrased in a negative manner such that a response of "Strongly Disagree" indicates the individual favors the intervention; these items are reverse coded when scoring.

  2. Semi structured interview

    Time frame: Day 1

    Questions were focused on the usability and usefulness of the Safer Seat.

  3. Demographic Data

    Time frame: Day 1

Sponsors and collaborators

Lead sponsor

Julie Faieta

Other

Registry information

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Jun 8, 2025
Registry last updated
Aug 8, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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