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Title

Correlation of compound action potential and electromyography with facial muscle tension
Authors
Schwartz, Ilsa
Goodnight, J W
Dulguerov, Pavel
Berke, G S
Lesavoy, M
Hoffman, L F
Published in Otolaryngology and head and neck surgery. 1995, vol. 112, no. 2, p. 279-90
Abstract Functional electric stimulation is a new method for dynamic rehabilitation of paralyzed muscles. The output of such prosthetic devices needs to be modulated by some index of the muscle movement. In facial paralysis a measure of the muscle contractions of the normal contralateral side seems to be an appropriate input. In the rabbit, we simultaneously measured the compound action potential of the buccal branch of the facial nerve, the electromyogram of the zygomaticus major muscle, and the muscle twitch tension through strain gauge. The compound action potential, electromyogram, and strain gauge each had a sigmoidal relationship to stimulus intensity. The compound action potential peak-to-peak amplitude was found to have a linear correlation to the peak twitch tension of the corresponding facial muscle. The electromyogram response, although more variable, also had a linear correlation with muscle contraction. The possibility of predicting the contraction of facial muscles before they actually occur is discussed in the context of available and future functional electric rehabilitation models.
Keywords Action Potentials/physiology — Animals — Electric Stimulation — Electric Stimulation Therapy — Electromyography — Evoked Potentials/physiology — Facial Muscles/physiology — Facial Paralysis/rehabilitation — Motor Neurons/physiology — Movement — Muscle Contraction/physiology — Nerve Fibers/physiology — Neural Conduction/physiology — Prostheses and Implants — Rabbits — Signal Processing, Computer-Assisted — Transducers — Zygoma
Identifiers
PMID: 7838553
Full text
Article (Published version) (1.4 MB) - public document Free access
Structures
Faculté de médecine / Section de médecine clinique / Département des neurosciences cliniques
Citation
(ISO format) 		SCHWARTZ, Ilsa et al. Correlation of compound action potential and electromyography with facial muscle tension. In: Otolaryngology and head and neck surgery, 1995, vol. 112, n° 2, p. 279-90. doi: 10.1016/S0194-59989570251-2 https://archive-ouverte.unige.ch/unige:31217

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Deposited on : 2013-11-20

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