Study of How Stair Edge Contrast Frequency Affects Foot Clearance and Fall Risk in Older Adults with and without Vision Impairment

What this Trial Is About

This research aims to understand how different frequencies of contrast markings on stair edges influence foot clearance, which is a key factor in fall risk, in older adults both with and without visual impairments. The study compares these two groups to see how stair contrast frequency affects their foot clearance measures and perceptions of stair safety. All participants will experience eight different stair contrast frequency conditions during one visit. They will walk up and down laboratory stairs while their vision is measured and their foot clearance is recorded under each condition. An optional second visit includes a focus group discussion to explore how stair contrast impacts their daily mobility at home. Participants will be assessed for toe and heel clearance, including how often their foot clearance is less than 5mm, throughout the study period averaging one year. Researchers will also collect participants responses using rating scales and perception surveys regarding the stair contrast conditions. The study involves a single visit with an optional follow-up group meeting, focusing on mobility and safety measures.

Evaluating Stairway Designs for Individuals With Vision Impairment