Concentric needle jitter in stimulated frontalis in 20 healthy subjects

Normative data for jitter parameters using a disposable concentric needle have been presented in a few studies. Jitter, expressed as the mean consecutive difference (MCD), was measured in the frontalis muscle in 20 subjects by percutaneous bar stimulation of the temporal nerve branch. The mean MCD f...

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Bibliographic Details
Published in:Muscle & nerve 2012-02, Vol.45 (2), p.276-278
Main Authors: Kouyoumdjian, João A., Stålberg, Erik V.
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Biophysics
concentric needle electrode
Electric Stimulation - methods
Electrodiagnosis. Electric activity recording
Electromyography
Facial Muscles - physiology
Female
frontalis
Head - innervation
Humans
Investigative techniques, diagnostic techniques (general aspects)
jitter
Male
Medical sciences
Middle Aged
Muscle Contraction - physiology
Needles
Nervous system
Prospective Studies
single-fiber electromyography
stimulation jitter
Time Factors
Young Adult
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Summary:Normative data for jitter parameters using a disposable concentric needle have been presented in a few studies. Jitter, expressed as the mean consecutive difference (MCD), was measured in the frontalis muscle in 20 subjects by percutaneous bar stimulation of the temporal nerve branch. The mean MCD for individual studies (20) and for all potentials (600) were 16.05 ± 2.73 μs and 16.05 ± 5.96 μs, respectively. The suggested limit for mean MCD is 22 μs and for outliers is 28 μs. Muscle Nerve, 2012
ISSN:0148-639X
1097-4598
1097-4598
DOI:10.1002/mus.22306