The Effect of Perturbration on Balance Control in Adults

NCT ID: NCT04174027

Last Updated: 2019-11-22

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

UNKNOWN

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-12-15

Study Completion Date

2020-12-15

Brief Summary

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Balance control in respond to an unexpected platform perturbration during standing and walking: comparison between individuals with chronic ankle instability and healthy individuals.

Detailed Description

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An unexpected postural perturbration is a major risk factor of falls and injuries during gait. A postural perturbration is a sudden change in conditions that displaces the body posture away from equilibrium. Reactive postural control response is an immediate ( 70-120 ms ) automatic "like reflex" response which is initiated by unexpected postural perturbration in order to maintain balance. Even among young healthy adults there could be a problem in balance performance which does not become evident untill a slip or a trip or any other sudden perturbration happens. Thus a simple test of pertubration while standing or walking can identify a problem .

This study is comparing the reactive postural control of physical education students who suffer from chronic ankle instability (CAI) to healthy students on a Perturbation Treadmill. The device consists of a treadmill mounted on a moving force plate platform. The platform moves in the medial/ lateral plains to simulate a slip and a trip in both the standing and walking phase. Their reactive postural control is tested in a few conditions: standing on both legs - eyes open and eyes closed, in tandem standing, standing on one leg and in walking. In each condition the perturbration is given every 5-15 seconds in different speed and in unexpected direction (right /left). Lost of balance control is any change in the original location of the foot in standing conditions or stepping out of the treadmill.

Conditions

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Chronic Ankle Instability

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Eligibility Criteria

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Inclusion Criteria

* age 18-50
* good health
* active people

Exclusion Criteria

* Body weight greater than 135 kg
* Bone instability (non-consolidated fractures, unstable spinal column, severe osteoporosis)
* Head damage in the year prior to the study
* Diabetics or Unstable circulation
* Cardiac (blood) contraindications
* Vestibular problem
* Neurological deficits
* Mechanical ventilation problem
* Severe vascular disorders of the lower limbs
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Meir Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Central Contacts

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Alon Eliakim, MD

Role: CONTACT

972-9-7471596

Michal Pantanowitz, PhD

Role: CONTACT

972-9-7471596

Other Identifiers

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MeirMc102-19CTIL

Identifier Type: -

Identifier Source: org_study_id

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