Spinal and Supraspinal Control in Chronic Ankle Instability

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

RECRUITING

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-11-15

Study Completion Date

2025-07-31

Brief Summary

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Ankle sprains are common sports injuries that often lead to chronic ankle instability (CAI). Patients with CAI experience deficits in neuromuscular control (NMC), including proprioception and strength. It is believed that damage to the ankle's ligament mechanoreceptors and the peroneal nerve after the initial ankle sprain can cause alterations in NMC, resulting in postural control and dynamic joint stability dysfunction. Inflammation related to recurrent ankle sprains may also contribute to neuromuscular impairments. Evidence suggests that bilateral postural control deficits occur after an ankle sprain, suggesting alterations in the central nervous system (CNS). Rehabilitation for CAI has been shown to lead to bilateral improvements in NMC, potentially due to neural alterations at both the spinal and supraspinal levels. Cross-education, which refers to the muscular crossed effect of unilateral training, has also been proposed as a mechanism for improving contralateral strength in neurologically healthy individuals. While the exact mechanisms underlying cross-education are not yet fully understood, evidence suggests that it involves neural adaptations at both spinal and supraspinal levels. This study aims to investigate the cross-education effect of a 6-week, unilateral balance training on corticomotor excitability, motor neuron pool excitability, and static and dynamic balance in athletes with chronic ankle instability.

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Detailed Description

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Conditions

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Ankle Injuries Ankle Sprains

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Stable Group

The intervention will be applied to only the stable ankle of the athletes with unilateral chronic ankle instability.

Group Type EXPERIMENTAL

The structured balance training protocol

Intervention Type OTHER

The structured balance training protocol consists of 7 exercises including balance and hop stabilization exercises for athletes with chronic ankle instability.

Unstable Group

The intervention will be applied to only the unstable ankle of the athletes with unilateral chronic ankle instability.

Group Type EXPERIMENTAL

The structured balance training protocol

Intervention Type OTHER

The structured balance training protocol consists of 7 exercises including balance and hop stabilization exercises for athletes with chronic ankle instability.

Control Group

No intervention will be applied.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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The structured balance training protocol

The structured balance training protocol consists of 7 exercises including balance and hop stabilization exercises for athletes with chronic ankle instability.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Volunteering to participate in the study,
* Being an athlete between the ages of 18-25,
* Being a player in a field team sport such as basketball, volleyball, and handball,
* Having a history of at least 2 significant grade II LAS diagnosed by a physician,
* Related inflammatory symptoms, "giving away" sensation, obtaining a score ≤25 from the Cumberland Ankle Instability Tool (CAIT),
* A score \<90% for the activities of daily living subscale and \<80% for the sport subscale from the Foot and Ankle Ability Measure,
* Recurrent episodes of LAS of the injured ankle which occurred within at least 12 months.

Exclusion Criteria

* Acute injury of lower extremity musculoskeletal structures in the last three months,
* Orthopedic surgery in any of the lower extremities,
* Bilateral ankle instability,
* Vestibular or balance disorder

Minimum Eligible Age

18 Years

Maximum Eligible Age

25 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No