Background: Less flexible and adaptable sensorimotor systems reflect in movement variability in individuals with Chronic Ankle Instability (CAI), which may limit their ability to detect relevant information using a variety of primary sensory feedback. Thus, the aim of the study was to investigate underlying biological noise pertaining to postural control in single-limb stance during increased environmental constraints with sensory feedback manipulations in individuals with and without CAI. Methods: Forty-two individuals with and without CAI participated in the study. A one-way ANOVA was utilized to examine group differences in biological noise underlying postural control during the SOT conditions in single-limb stance. Results: Individuals with CAI demonstrated significantly lower SampEN while maintaining posture during Condition 5 (P=.037) and Condition 6 (P=.030), where they were forced to exclusively rely on vestibular feedback, in single-limb stance compared to healthy controls. Discussion: Individuals with CAI did not demonstrate decreased movement variability pertaining to postural control during all six SOT conditions. Those participants with CAI only displayed decreased movement variability when they were forced to executively rely on vestibular feedback while maintaining posture in the injured-limb compared to healthy controls.
Competing Interest StatementThe authors have declared no competing interest.
Funding StatementNA
Author DeclarationsI confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.
Yes
The details of the IRB/oversight body that provided approval or exemption for the research described are given below:
IRB of the University of North Carolina at Greensboro gave ethical approval for this work.
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Data AvailabilityAll data produced in the present work are contained in the manuscript
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