Elasticity of Structures Around the Ankle in Chronic Ankle Instability

The aim of this study is to examine the flexibility of the structures around the ankle in individuals with unilateral chronic ankle instability. Individuals between the ages of 18-45 who have been diagnosed with chronic ankle instability by an orthopedist and who have unilateral instability will be included in the study. The flexibility of the healthy and instability sides will be evaluated. Demographic information of the individuals will be recorded and clinical evaluations will be made. The severity of ankle instability will be evaluated with the Functional Ankle Identification (FABIT). The foot posture of the individuals participating in the study will be evaluated with the Foot Posture Index, and the degree of flat feet will be evaluated with the Navicular Drop Test. The flexibility of the gastrocnemius, tibialis anterior, peroneus longus, achilles tendon and plantar fascia of the individuals participating in the study will be measured with a myotonometer.

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Key information

Conditions

Chronic Ankle Instability

Age range

18 year–45 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Atılım University

Ankara, Turkey (Türkiye)

Who can participate

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Ages 18 to 45
Mini Mental State Exam (MMSE) score of 24 to 30
Diagnosed with unilateral chronic ankle instability by a physician

Exclusion criteria

Inability to communicate verbally
Use of a walking aid
Any history of lower extremity surgery
People with severe visual impairment, neurological disorders and/or congestive heart failure.

Treatment and study plan

Primary outcomes

Functional Ankle Identification

Time frame: Baseline

The Functional Ankle Identification method is a scale developed to evaluate the functional ankle instability of individuals.
Foot Posture Index

Time frame: Baseline

Foot Posture Index will be applied in this study to evaluate the foot postures of the participants.
Navicular Drop Test

Time frame: Baseline

The Navicular Drop Test will be administered to measure how much the participants' navicular bones have fallen.
Myoton

Time frame: Baseline

Participants' gastrocnemius, tibialis anterior, peroneus longus, achilles tendon and plantar fascia flexibility will be evaluated using a myotonometer device.

Sponsors and collaborators

Lead sponsor

Hacettepe University

Other

Registry information

Official study title

Investigation of the Flexibility of Structures Around the Ankle in Individuals With Chronic Ankle Instability

Important dates

Study start: 2025
Primary completion: 2025
Study completion: 2025
First posted: May 23, 2025
Registry last updated: Nov 26, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed