Evaluating Stairway Designs for Individuals With Vision Impairment
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Frequency of contrast marking on stair steps.
- Who it may be relevant to
- Registry conditions: Vision, Low, Mobility Limitation. Basic parameters: from 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Frequency of Contrast Enhancement on Stairways
Overview
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.
Interventions
- 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
Primary outcome measures
- Toe clearance [Time frame: visit 1, through study completion, an average of 1 year]
- Heel clearance [Time frame: visit 1, through study completion, an average of 1 year]
- Frequency of <5mm toe clearances [Time frame: visit 1, through study completion, an average of 1 year]
- Frequency of <5mm heel clearances [Time frame: visit 1, through study completion, an average of 1 year]
Secondary outcome measures (2)
- Likert-Scale responses of contrast marking frequency conditions [Time frame: visit 1, through study completion, an average of 1 year]
- Perception responses of contrast marking frequency conditions [Time frame: visit 1, through study completion, an average of 1 year]
Eligibility criteria
Inclusion criteria
- ≥ Contrast sensitivity log 1.6 or greater
- travels independently in the community, including stairways > two times/week
- comfortable ascending and descending a stairway with rest time provided
Exclusion criteria
- severe rheumatologic and or orthopedic diseases (e.g., awaiting joint replacement, active inflammatory disease)
- lower-limb injuries and/or recent joint replacements (e.g., hip fracture, hip, or knee replacement within six months of study enrollment)
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Prevention
Study locations
United States · 1 center
- University of Alabama in Huntsville — Huntsville
Identifiers
NCT: NCT07337317 · 0011