Role of Surface EMG in Diagnostics and Treatment of Muscle Tension Dysphonia

In muscle tension dysphonia (MTD) excessive tension of both the internal and external laryngeal muscles is observed. In the present pilot study, 9 pairs of surface electrodes were used to determine the electromyographic (EMG) characteristics of different muscles in the perioral area and anterior nec...

Full description

Saved in:
Bibliographic Details
Published in:Acta oto-laryngologica 1998, Vol.118 (5), p.739-743
Main Authors: HOCEVAR-BOLTEZAR, I., JANKO, M., ZARGI, M.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Biological and medical sciences
Electrodiagnosis. Electric activity recording
Electromyography - methods
Electromyography - statistics & numerical data
Facial Muscles - physiopathology
Female
Humans
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Miscellaneous. Technology
Muscle Contraction
Neck Muscles - physiopathology
Pilot Projects
Voice Disorders - diagnosis
Voice Disorders - physiopathology
Voice Quality
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In muscle tension dysphonia (MTD) excessive tension of both the internal and external laryngeal muscles is observed. In the present pilot study, 9 pairs of surface electrodes were used to determine the electromyographic (EMG) characteristics of different muscles in the perioral area and anterior neck before and during phonation. Eleven patients with MTD and 5 normal speakers were included within the study. The results show a 6-8-fold increase of EMG activity and/or an alternation of the EMG activity level in the perioral and supralaryngeal muscles before and during phonation in most of the patients with MTD. It is not clear whether these muscles are activated as compensation for excessive tension of internal laryngeal muscles, or whether they are responsible for some of the voice disorders.
ISSN:0001-6489
1651-2251
DOI:10.1080/00016489850183287