Localised task-dependent motor-unit recruitment in the masseter

Summary Localised motor‐unit (MU) recruitment in the masseter was analysed in this study. We investigated whether differential activation behaviour, which has already been reported for distant masseter regions, can also be detected in small muscle subvolumes at the level of single MUs. Two bipolar f...

Full description

Saved in:
Bibliographic Details
Published in:Journal of oral rehabilitation 2014-07, Vol.41 (7), p.477-485
Main Authors: Schindler, H. J., Hellmann, D., Giannakopoulos, N. N., Eiglsperger, U., van Dijk, J. P., Lapatki, B. G.
Format: Article
Language:English
Subjects:
Adult
Bite Force
Dentistry
Electrodes
electromyograms
Electromyography - methods
Female
Humans
jaw muscles
Male
masseter
Masseter Muscle - physiology
motor units
Muscle Contraction - physiology
Recruitment, Neurophysiological - physiology
Young Adult
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:Summary Localised motor‐unit (MU) recruitment in the masseter was analysed in this study. We investigated whether differential activation behaviour, which has already been reported for distant masseter regions, can also be detected in small muscle subvolumes at the level of single MUs. Two bipolar fine‐wire electrodes and an intra‐oral 3D bite‐force transmitter were used to record intra‐muscular electromyograms (EMG) resulting from controlled bite‐forces of 10 healthy human subjects (mean age 24·1 ± 1·2 years). Two‐hundred and seventeen decomposed MUs were organised into localised MU task groups with different (P 
ISSN:0305-182X
1365-2842
DOI:10.1111/joor.12168