Frequency of Contrast Enhancement on Stairways
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 65
- 试验地点
- 1
- 主要终点
- Toe clearance
研究概览
简要总结
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 65 Years 至 —（Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •≥ 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
排除标准
- •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)
研究组 & 干预措施
Intervention
All participants will participate in the experimental arm, that involves a factorial model approach inwhich all participants will experience all eight conditions.
干预措施: Frequency of contrast marking on stair steps (Other)
结局指标
主要结局
Toe clearance
时间窗: visit 1, through study completion, an average of 1 year
Toe, foot vertical clearance on stair steps
Heel clearance
时间窗: visit 1, through study completion, an average of 1 year
heel, foot horizontal clearance on stair steps
Frequency of <5mm toe clearances
时间窗: visit 1, through study completion, an average of 1 year
how often \<5mm toe clearances occur
Frequency of <5mm heel clearances
时间窗: visit 1, through study completion, an average of 1 year
how often \<5mm toe clearances occur
次要结局
- Likert-Scale responses of contrast marking frequency conditions(visit 1, through study completion, an average of 1 year)
- Perception responses of contrast marking frequency conditions(visit 1, through study completion, an average of 1 year)
研究者
Sara Harper
Assistant Professor
The University of Alabama in Huntsville