The Effect of Cognitive Tasks on Single Limb Balance

NCT ID: NCT07084220

Last Updated: 2025-07-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

39 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-08-18

Study Completion Date

2020-07-31

Brief Summary

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Purpose of the Study: The purpose of this study is to evaluate the effects of performing various cognitive tasks on balance in individuals with chronic ankle instability and healthy controls. Three different cognitive tasks will be performed while participants balance on one limb. Chronic ankle instability is defined as having a history of at least one ankle sprain and having residual effects. The specific aims of this study are to:

1. Determine if performing the cognitive tasks effect single limb balancing.
2. Determine which cognitive task, if any, has the greatest effect on single limb balance.

Participants will perform single-limb balancing with eyes open on the force plate while performing one of the four cognitive tasks. You will start with the control condition, the order of cognitive tasks will be random. Testing will occur on both limbs.

1. Each trial will last 1 minute. There will be at least a 30 second rest period between trials.
2. You will perform 3 trials of each cognitive task prior to moving on to the next task. There will be a 5 minute rest between cognitive tasks.
3. You will complete all testing on one limb (counterbalanced) prior to moving to the other limb.

Detailed Description

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Conditions

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Chronic Ankle Instability, CAI Healthy Participants

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Healthy control

* No previous history of ankle sprain on either limb
* A score lower than 10 on the Identification of Functional Ankle Instability
* Between 18-40 years old
* Lower extremity injury-free for at least 3 months
* No previous history of foot or ankle surgery on either limb
* No known history of known foot or ankle fracture on either limb
* No known neurological or vestibular disorders, or other medical conditions affecting balance, including ear infections
* Does not have diabetes mellitus
* No self-reported disability due to lower extremity pathology

No interventions assigned to this group

Chronic ankle instability

* Between 18-40 years old
* Lower extremity injury-free for at least 3 months
* No previous history of foot or ankle surgery on either limb
* No known history of known foot or ankle fracture on either limb
* No known neurological or vestibular disorders, or other medical conditions affecting balance, including ear infections
* Does not have diabetes mellitus
* No self-reported disability due to lower extremity pathology
* A previous history of at least 1 lateral ankle sprain as reported on the Modified Ankle Instability Index
* A score of 10 or higher on the Identification of Functional Ankle Instability

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Between 18-40 years old
* Lower extremity injury-free for at least 3 months
* No previous history of foot or ankle surgery on either limb
* No known history of known foot or ankle fracture on either limb
* No known neurological or vestibular disorders, or other medical conditions affecting balance, including ear infections
* Does not have diabetes mellitus
* No self-reported disability due to lower extremity pathology
* No previous history of ankle sprain on either limb as reported on the Modified Ankle Instability Index questionnaire
* A score lower than 10 on the Identification of Functional Ankle Instability questionnaire

Exclusion Criteria

\-
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Towson University

OTHER

Sponsor Role lead

Responsible Party

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Lisa Custer

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Lisa Custer, Ph.D, ATC

Role: PRINCIPAL_INVESTIGATOR

Towson University

Locations

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Burdick Hall

Towson, Maryland, United States

Site Status

Countries

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United States

References

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Rahnama L, Salavati M, Akhbari B, Mazaheri M. Attentional demands and postural control in athletes with and without functional ankle instability. J Orthop Sports Phys Ther. 2010 Mar;40(3):180-7. doi: 10.2519/jospt.2010.3188.

Reference Type BACKGROUND
PMID: 20195021 (View on PubMed)

Other Identifiers

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1907054099

Identifier Type: -

Identifier Source: org_study_id

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