Abstract
PURPOSE: The aim of the study was to determine whether corticospinal excitability and inhibition of the tibialis anterior during single-leg standing differs among individuals with chronic ankle instability (CAI), lateral ankle sprain copers, and healthy controls.
METHODS: Twenty-three participants with CAI, 23 lateral ankle sprain copers, and 24 healthy control participants volunteered. Active motor threshold (AMT), normalized motor-evoked potential (MEP), and cortical silent period (CSP) were evaluated by transcranial magnetic stimulation while participants performed a single-leg standing task.
RESULTS: Participants with CAI had significantly longer CSP at 100% of AMT and lower normalized MEP at 120% of AMT compared to lateral ankle sprain copers (CSP100%: p = 0.003; MEP120%: p = 0.044) and controls (CSP100%: p = 0.041; MEP120%: p = 0.006).
CONCLUSION: This investigation demonstrated altered corticospinal excitability and inhibition of the tibialis anterior during single-leg standing in participants with CAI. Further research is needed to examine the effects of corticospinal maladaptations to motor control of the tibial anterior on postural control performance in those with CAI.
Document Type
Article
Publication Date
8-28-2020
Digital Object Identifier (DOI)
https://doi.org/10.1016/j.jshs.2020.08.008
Repository Citation
Terada, Masafumi; Kosik, Kyle B.; McCann, Ryan S.; Drinkard, Colin; and Gribble, Phillip A., "Corticospinal Activity during a Single-Leg Stance in People with Chronic Ankle Instability" (2020). Athletic Training and Clinical Nutrition Faculty Publications. 8.
https://uknowledge.uky.edu/atcn_facpub/8
Graphic abstract
1-s2.0-S2095254620301150-mmc1.mp4 (40033 kB)
Video of research presentation
Notes/Citation Information
Published in Journal of Sport and Health Science, v. 11, issue 1.
Copyright © 2020
This is an open access article under the CC BY-NC-ND license.
(https://creativecommons.org/licenses/by-nc-nd/4.0/)