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Related Concept Videos

Ankle Joint01:10

Ankle Joint

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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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Ankle Inversion Proprioception Impairment in Persons with Chronic Ankle Instability Is Task-Specific.

Jia Han1,2,3, Zonghan Yang4, Jeremy Witchalls2

  • 1College of Rehabilitation Sciences, 191610Shanghai University of Medicine and Health Sciences, Shanghai, China.

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|September 16, 2022
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Summary

Ankle proprioception deficits in chronic ankle instability (CAI) are task-specific. Impaired proprioception was found during challenging landing tasks, but not during simple standing, highlighting the need for functional tests.

Keywords:
ankle injurybalanceproprioceptive testingrehabilitation

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Area of Science:

  • Biomechanics
  • Motor Control
  • Sports Medicine

Background:

  • Chronic ankle instability (CAI) is common in athletes.
  • Previous studies show inconsistent findings on ankle proprioception in CAI.
  • Proprioceptive deficits may be task-specific, influencing research outcomes.

Purpose of the Study:

  • To compare ankle inversion proprioception between individuals with and without CAI.
  • To investigate task-specificity of proprioceptive deficits in CAI.
  • To determine if challenging tasks reveal proprioceptive impairments missed in non-challenging conditions.

Main Methods:

  • 38 recreational athletes (19 with CAI, 19 without) participated.
  • Ankle inversion proprioception measured using AMEDA (standing) and AIDAL (step-down landing).
  • ANOVA and correlation analyses used to compare groups and assess task-specificity.

Main Results:

  • CAI group performed significantly worse than non-CAI on the AIDAL (step-down landing task, p=0.03).
  • No significant difference in performance between groups on the AMEDA (standing task).
  • Cumberland Ankle Instability Tool (CAIT) scores correlated with AIDAL, not AMEDA scores.

Conclusions:

  • Ankle proprioceptive deficits in CAI are task-specific, evident during challenging functional tasks like landing.
  • Standard proprioceptive tests may not detect deficits in CAI if they lack functional challenge.
  • Functional, minimally challenging proprioceptive tests are crucial for differentiating CAI from healthy individuals.