Effects of the Elastic Taping on the Chronic Ankle Instability

Study Overview
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Brief Summary
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This study will analyze the effects of an elastic taping application protocol in individuals with chronic ankle instability. One group will perform a protocol with increased tape tension for five weeks while the other group will receive the same tape without tension during the same period.

Detailed Description
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Elastic taping is a method widely used in clinical practice for the treatment of ankle instability and shows increasing interest in research to verify its effectiveness. The literature presents several studies with short-term effects, largely in healthy individuals and with several application techniques, with the incremental tensioning of the proposed tape subjectively. The literature presents several studies with short-term effects, largely in healthy individuals and with several application techniques, with the incremental tensioning of the proposed tape subjectively.

Official Title
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Effects of the Elastic Taping on the Chronic Ankle Instability: a Clinical Trial

Conditions
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Ankle Sprains, Chronic Ankle Instability, Athletes Foot

Intervention / Treatment
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* Other: Tape with tension
* Other: Tape without tension


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: young adults with chronic ankle instability (unilateral or bilateral); the first sprain episode occurred for at least 1 year pre-study associated with inflammatory symptoms (pain, edema, etc.); having discontinued for at least 1 day physical activity; the most recent sprain occurred more than 3 months prior study; self-reported instability feeling to be confirmed by specific questionnaires. Exclusion Criteria: lower limb surgical procedure; lower limb fracture history; acute injury (last 3 months) of other lower limb joints resulting in at least 1 day in the interruption of physical activity; wounds in the ankle region or foot; own skin disease; have allergy to bandage; be in physiotherapeutic treatment.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: tensioned tape<br>The tensioned tape group will apply weekly with gradual tension calculated by measuring the initial length of the tape. From the first week of application, there will be a 5% increase in tension up to the fifth week. | Other: Tape with tension<br>* The elastic bandage will be applied with a voltage increase controlled weekly, for five weeks. Each week, 5% of tension will be added to the application. In the first week the application will be tension-free.<br>* Other names: Elastic bandage;|
| Active Comparator: tape without tension<br>The tensionless tape group will receive the application of the tape weekly without tensioning during the five weeks. | Other: Tape without tension<br>* Bandaging applications will be weekly, for five weeks, without tensioning the tape.<br>* Other names: kinesiotaping;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Functionality | The functionality will be evaluated by the average of three executions of the side hop test and dynamic balance test (star excursion balance test modified). The side hop test consists of lateral jumps beyond the 30 cm mark on the ground in the shortest possible time (the shorter the time, the better the performance). The dynamic balance test consists of remaining in unipodal support and reaching as far as possible with the other member in the anterior, posteromedial and posterolateral directions. The greater the distance achieved improves the score. The calculation is performed to correct the measurements. | The evaluation will occur at week 1 (baseline) and at the end of the protocol (week 6) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Balance | The balance will be evaluated by the force platform at baseline. The variables center of pressure, speed of displacement of the center of pressure in the anteroposterior and mediolateral directions, frequency of displacement of the center of pressure in the anteroposterior and mediolateral directions will be analyzed. The lower the score, the better the performance. | The evaluation will occur at week 1 (baseline) and at the end of the protocol (week 6) | 
| Self-reported instability | Self-reported instability will be assessed by questionnaire. The Cumberland Ankle Instability Tool consists of 9 questions with a maximum score of 30 points. Ankle instability is considered to have a score less than or equal to 24. The lower the score, the worse the instability. The other questionnaire used will be Foot and Ankle Outcome Score, which has 42 questions divided into 5 domains. Each domain has a score of 100%. If the individual has <75% in 3 domains, he is considered to have functional ankle instability. The lower the score, the worse the instability. | The evaluation will occur at week 1 (baseline) and at the end of the protocol (week 6) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Athletic Tape, Ankle Sprains, Chronic Ankle Instability