The Influence of Dual Task and Gait Speed on Gait Variability in Patients With Chronic Ankle Instability

Not Applicable

• Conditions: Chronic Instability of Joint
• Interventions: Other: Gait analysis

• Registration Number: NCT02745834
• Lead Sponsor: Medical Corps, Israel Defense Force

Brief Summary

Case-control study to evaluate gait parameters during different conditions between patients who suffer from chronic ankle instability and healthy individuals.

Detailed Description

This case-control study will compare the different gait parameters such as stride time and stride length variability in different gait conditions (e.g., normal speed, normal speed with dual task, fast speed and fast speed with dual task) between healthy individuals and patients who suffer from chronic ankle instability.

the measurements will be collected using the OPTOGait system installed on a treadmill.

Study Timeline

• Study Start: 2015-10
• Status Verified: 2016-01
• Study First Submitted: 2016-03-15
• Study First Submitted QC: 2016-04-19
• Last Update Submitted: 2016-04-19
• Study First Posted: 2016-04-20
• Last Update Posted: 2016-04-20
• Primary Completion: 2016-05
• Study Completion: 2016-10

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

• history of at least one significant ankle sprain which occurred at least 12 months prior to enrolment in the study and was diagnosed by a physician or a physical therapist using clinical examination classifications described by Malliaropoulos et al
• history of at least two episodes of 'giving way', and feelings of ankle joint instability in the previously injured ankle joint of 1 year post-initial sprain
• the most recent injury occurred more than 6 weeks prior to the study enrolment
• the ability to apply full weight bearing on the injured lower extremity with no more than mild discomfort

Exclusion Criteria

• evidence of a concomitant injury (such as a bony injury or significant muscular/tendon injury)
• previous ankle surgery
• other pathological conditions or surgical procedures in lower extremity
• neurological/vestibular or any other balance disorder.

The control group included healthy participants with no current or previous conditions that could affect proprioception.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Chronic Ankle Instability	Gait analysis	Soldiers who suffer from chronic ankle instability who had a first major ankle sprain one year or more ago, and did not sustained any major ankle sprain in the last two months, will go through Gait analysis intervention.
Healthy controls	Gait analysis	Healthy soldiers who are not suffering from chronic ankle instability, will go through Gait analysis intervention.

Primary Outcome Measures

Name	Time	Method
Stride length variability	Day 1	Coefficient of variance of the stride length, measured in % by the OPTOGait system
Stride time variability	Day 1	Coefficient of variance of the stride time, measured in % by the OPTOGait system

Secondary Outcome Measures

Name	Time	Method
Dual task general score	Day 1	Participants will be asked to count backward, reducing 7 at a time, starting at different 3 digits number. The outcome measure is a calculation of the number of total answers multiple by (number of correct answers - number of wrong answers).

Trial Locations

Locations (1)

IDF Medical Corp; 🇮🇱 Zrifin, Israel