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Obstacle Negotiation Training for Low Vision

N/A

Recruiting

Research Sponsored by Indiana University

Eligibility Criteria Checklist

Specific guidelines that determine who can or cannot participate in a clinical trial

Must have

Able to walk independently

Age 18 or over

Must not have

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

Timeline

Screening 3 weeks

Treatment Varies

Follow Up during a single intervention visit (study visit 2), up to 2-3 hours in duration.

Awards & highlights

No Placebo-Only Group

Summary

This trial will investigate how people with vision impairment adjust their gait when stepping over obstacles of different heights and contrasts to the ground, in order to help prevent falls.

Who is the study for?

This trial is for adults over 18 who can walk on their own. It's for those with normal vision or impaired vision, defined as having a visual acuity of 20/25 or worse, possibly with central scotoma, or a restricted field of view. People not allowed include those advised against moderate exercise by doctors, have vestibular disorders or deafness, conditions affecting long walks, cognitive issues (scoring below 24 out of 30 on the Mini Mental State Exam), gait abnormalities from injuries or diseases like Parkinson's, and non-English speakers.

What is being tested?

The study tests how adults with vision impairment adjust their walking when they encounter obstacles that differ in height and contrast to the ground. The goal is to understand how these individuals use their gaze and change their gait to navigate safely and potentially reduce fall risks.

What are the potential side effects?

There are no medicinal side effects involved in this trial since it does not involve drugs; however participants may experience physical fatigue due to walking exercises during the study.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below

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I can walk on my own without help.

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I am 18 years old or older.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:

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I have a history of balance issues or deafness.

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I can walk for up to 2 hours with breaks without feeling dizzy, chest pain, or shortness of breath.

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I am not cleared for moderate exercise by a doctor.

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I need help to walk, like a cane or oxygen tank.

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I have difficulty walking due to an injury, surgery, arthritis, or a condition like Parkinson's.

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I do not speak English.

Timeline

Screening ~ 3 weeks3 visits

Treatment ~ Varies

Follow Up ~ during a single intervention visit (study visit 2), up to 2-3 hours in duration.

Screening ~ 3 weeks

Treatment ~ Varies

Follow Up ~during a single intervention visit (study visit 2), up to 2-3 hours in duration.

This trial's timeline: 3 weeks for screening, Varies for treatment, and during a single intervention visit (study visit 2), up to 2-3 hours in duration. for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.

Primary study objectives

Foot placement variability

Gaze sequencing

Obstacle crossing speed

+1 more

Awards & Highlights

No Placebo-Only Group

All patients enrolled in this study will receive some form of active treatment.

Trial Design

2Treatment groups

Experimental Treatment

Active Control

Group I: Low Vision GroupExperimental Treatment1 Intervention

At a single study visit, the group of low vision participants will be asked to perform a series of short walking trials. During each trial they will walk at a self-selected speed along a walkway (6 meters in length) that may or may not contain an obstacle to step over. The trials will be randomly varied with regard to an obstacle's presence, height, and contrast from the walkway surface. Repeated trials of each condition variation will be performed during the visit.

Group II: Control GroupActive Control1 Intervention

At a single study visit, the group of age-matched participants without low vision will be asked to perform a series of short walking trials. During each trial they will walk at a self-selected speed along a walkway (6 meters in length) that may or may not contain an obstacle to step over. The trials will be randomly varied with regard to an obstacle's presence, height, and contrast from the walkway surface. Repeated trials of each condition variation will be performed during the visit.

0 / 8Eligibility criteria met