Obstacle Negotiation in Older People With and Without Vision Impairment
ConditionLow Vision
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorIndiana University
About this trial
Falls are common among people with vision impairment and can lead to devastating health consequences. Understanding the functions of vision and how the visual characteristics of obstacles in the walking path impact the gait of people with vision impairment is necessary to create strategies to prevent falls in this population. The purpose of this study is to determine how adults with vision impairment change their gait behavior when stepping over obstacles that vary in height and contrast to the ground. We will then determine the mechanisms of gaze behavior that correlate to the gait behavior.
Eligibility criteria
Qualifiers
Age 18 or over
Able to walk independently
Either have normal vision, or impaired vision.
Impaired vision is defined as binocular visual acuity of 20/25 or worse with or without a central scotoma; and/or binocular visual field that is restricted to an average of 100 degrees in diameter or less
Disqualifiers
Not cleared by a medical provider for moderate physical activity
Self-report or have a history of: vestibular disorder or deafness
Medical history of any condition that affects the ability to walk for up to 2 hours with breaks, such as feeling dizzy or faint, chest pain, palpitations, pain or numbness in the legs, shortness of breath,
Cognitive limitations either by self-report or a score on the Mini Mental State Exam below 24 (out of 30)
Trial design
Treatments tested in this trial
- Obstacle characteristics
Treatment groups
200 Participants
are divided into 2 treatment groupsSponsors and collaborators
Source ClinicalTrials.gov