The effect of transcutaneous neuromuscular electrical stimulation on laryngeal vestibule closure timing in swallowing

BMC Ear, Nose, and Throat Disorders
Christopher R Watts, Matthew J Dumican

Abstract

The purpose of this study was to investigate the effect of transcutaneous neuromuscular electrical stimulation (NMES) on the timing of laryngeal vestibule closure during the pharyngeal stage of swallowing in healthy adults. The theoretical framework proposed that NMES applied to these muscles would present a perturbation to laryngeal vestibular closure reaction time (the amount of time for the laryngeal vestibule to close once the swallowing reflex has been triggered) by providing an antagonistic force to the direction of vestibule closure. Nine healthy adults (2 males, 7 females) received ten consecutive stimulations applied to the submandibular hyolaryngeal muscles while performing dry swallows. Laryngeal vestibule closure reaction time (LVCrt) and the laryngeal vestibule closure duration (LVCd) were measured from videoflouroscopic images pre-stimulation and post-stimulation. Results indicated a significant effect of stimulation on LVCrt but not LVCd. LVCrt was significantly reduced (timing was faster) during swallows immediately after stimulation compared to pre-stimulation. Findings from this study support the supposition that laryngeal muscles respond to perturbations via adaptation learning, which might be used for rehabi...Continue Reading

References

Jan 1, 1997·Dysphagia·N A Leopold, M C Kagel
Nov 8, 2008·Current Opinion in Neurology·Amy J Bastian
Mar 17, 2010·Neurorehabilitation and Neural Repair·Sebastian H DoeltgenMaggie-Lee Huckabee
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Apr 1, 2009·Neuromodulation : Journal of the International Neuromodulation Society·Sang Jun Kim, Tai Ryoon Han
Aug 29, 2012·Dysphagia·Ianessa A HumbertPablo Celnik
Mar 29, 2014·Neurologia Medico-chirurgica·Keiichi ToyamaKazumi Kawahira
Nov 21, 2014·American Journal of Speech-language Pathology·Ianessa A HumbertAkshay Lokhande
Dec 31, 2017·International Journal of Language & Communication Disorders·Lise SprosonJenny Freeman

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Citations

Oct 1, 2021·Neuromodulation : Journal of the International Neuromodulation Society·Mohammed F SafiChristy L Ludlow

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Software Mentioned

VDSC Video Editor
LVCrt
Ampcare

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