NCT07337317

Evaluating Stairway Designs for Individuals With Vision Impairment

Frequency of Contrast Enhancement on Stairways

• Status: Not Yet Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 65 (estimated)
• Sponsor: The University of Alabama in Huntsville · Academic / Other
• Sex: All
• Age: 65 Years
• Healthy volunteers: Accepted

Summary

The goal of this study is to learn if contrast frequency on step tread-edges influences foot clearance measures, a marker of fall risk, in older adults with and without visual impairments. The main questions that aim to be answered are how foot clearance measures change across different frequencies of stair contrast, and how experiences and perceptions of different stair contrast frequencies are evaluated. Researchers will compare individuals with and without visual impairments to see if contrast frequency on step tread-edges changes. Participants will attend one visit during which their vision will be measured, and they will be asked to ascend and descend laboratory stairs at different contrast frequencies. An optional second visit will entail a focus group meeting to better understand how contrast affects mobility in their home and everyday life.

Conditions

• Vision, Low
• Mobility Limitation

Interventions

Type	Name	Description
OTHER	Frequency of contrast marking on stair steps	Frequency of contrast marking on stair steps will be evaluated to determine how foot clearance, perceptions in older adults with and without impaired contrast sensivity

Timeline

• Start date: 2026-01-01
• Primary completion: 2027-01-01
• Completion: 2027-07-01
• First posted: 2026-01-13
• Last updated: 2026-01-13

Locations

1 site across 1 country: United States