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Ankle Joint

Ankle Joint

The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...

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Related Experiment Video

Updated: Mar 24, 2026

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

Published on: September 18, 2020

Do ankle braces affect functional performance? A randomised double-blinded cross-over trial.

Tomas Megalaa¹, Paul L Le¹, Alycia Fong Yan¹

¹The University of Sydney, Sydney School of Health Sciences, Faculty of Medicine and Health, Australia.

|March 23, 2026

Summary

This summary is machine-generated.

Ankle braces did not significantly impact functional performance or balance in individuals with or without chronic ankle instability. These findings suggest that brace use does not hinder athletic performance in various tests.

Keywords:

Ankle brace Ankle sprains Ankle support Chronic ankle instability Functional performance

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Area of Science:

Sports Medicine
Biomechanics
Orthopedics

Background:

Chronic ankle instability (CAI) affects a significant portion of the athletic population.
Ankle braces are commonly used to manage CAI, but their impact on functional performance requires further investigation.
Perceptions of stability and confidence are crucial for athletes returning to sport.

Purpose of the Study:

To compare the effects of two ankle braces (KISS and Aircast) versus no brace on functional performance.
To assess the influence of ankle braces on perceptions of stability, confidence, and reassurance in individuals with and without CAI.
To provide evidence-based guidance for the use of ankle braces in athletic populations.

Main Methods:

A randomized, double-blinded, cross-over trial was conducted.
Forty-two participants (21 uninjured, 21 with CAI) completed functional tests under three conditions: KISS brace, Aircast brace, and no brace.
Functional tests included side hop, Star Excursion Balance Test, triple hop, modified T-agility test, and vertical jump tests.

Main Results:

No statistically significant differences were found between the brace conditions and the no-brace condition across all tested functional performance measures.
Specific tests showing no significant difference include side hop, Star Excursion Balance Test, triple hop for distance, modified T-agility test, and vertical jump performance.
These results indicate that wearing either the KISS or Aircast ankle brace does not negatively affect key functional performance metrics.

Conclusions:

Ankle brace use, including KISS and Aircast models, does not appear to impair functional performance or balance in individuals with or without chronic ankle instability.
Practitioners can be confident that functional and balance performances are not negatively impacted by wearing an ankle brace.
Further research may explore the long-term effects and specific injury prevention capabilities of different ankle brace designs.