The Effect Of Peripheral Somatosensory Stimulation On Ankle Function In Individuals With Chronic Ankle Instability

ASU Author/Contributor (non-ASU co-authors, if there are any, appear on document)
Jacob A. Barton (Creator)
Institution
Appalachian State University (ASU )
Web Site: https://library.appstate.edu/
Advisor
Alan Needle

Abstract: Peripheral somatosensory stimulation (PSS) is a clinical intervention capable of improving neural and muscle function by increasing neural excitability in injured patients. PSS has been effective in improving function in neurologically-impaired populations, however, its effect in patients with chronic ankle instability (CAI) is unknown. The purpose of this study was to conduct a preliminary investigation of a single-session intervention of PSS to the ankle on neural excitability and dynamic balance in patients with CAI. Ten participants with CAI were recruited. Participants reported for 3 total sessions: a control session, an intervention session, and a 24-hr follow-up. Neural excitability was measured each session through reflexive excitability from the Hoffman-reflex (H-reflex) as well as through measures of transcranial magnetic stimulation (TMS). Dynamic postural stability indices (DPSI) were also measured each session from an in-ground force plate while electromyography (EMG) data was extracted from the lower leg muscles during a hop-to-stabilization task. No significant differences were observed for neural excitability nor dynamic balance measures following treatment. Medium-large effect sizes for some neural excitability variables prompted us to further investigate the data. Encouraging effect sizes were seen across these measures from Pre-Intervention to Post-Intervention time points, however DPSI measures still revealed minimal changes.

Additional Information

Publication
Thesis
Barton, J. (2022). The Effect Of Peripheral Somatosensory Stimulation On Ankle Function In Individuals With Chronic Ankle Instability. Unpublished Master’s Thesis. Appalachian State University, Boone, NC.
Language: English
Date: 2022
Keywords
Chronic Ankle Instability, Peripheral Somatosensory Stimulation Ankle, Function, Ankle Sprain Electrical Stimulation

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