ArticleFrontiers in psychology2026
Postural control responses during single-leg balance in individuals with chronic ankle instability under graded visual and somatosensory disruption.
Article in Frontiers in psychology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Chronic ankle instability (CAI) is a common sequela of lateral ankle sprain and is associated with recurrent injury, persistent functional limitations, sensorimotor deficits, and impaired postural control. However, how individuals with CAI adapt to graded and combined sensory feedback disruption remains unclear. This study aimed to determine whether individuals with CAI exhibit altered postural control during single-leg stance across graded visual, somatosensory, and combined visual-somatosensory disruption compared with healthy controls. Methods: Fifty-two participants (26 CAI, 26 healthy controls) performed single-leg balance tasks on a force plate under seven sensory conditions: one baseline condition and two graded conditions for each of three sensory disruption types: visual, somatosensory, and combined visual-somatosensory disruption conditions. Balance performance was assessed using center-of-pressure (COP) measures and quantified as percent change from baseline. Separate 2 × 2 mixed-design ANOVAs were conducted for each sensory disruption type and COP outcome. Results: Significant group-by-level interactions were observed under visual disruption for total COP velocity ( Conclusion: Individuals with CAI demonstrated greater postural deterioration than healthy controls under several disrupted sensory conditions, while retaining graded responses to somatosensory and combined disruption. The visual disruption findings suggest that individuals with CAI may be particularly vulnerable when visual feedback is partially degraded. These findings may provide a preliminary rationale for informing the development of sensory-targeted rehabilitation strategies aimed at improving functional stability, although future studies using more controlled visual manipulations are warranted.
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