EMG spectral characteristics of masticatory muscles and upper trapezius during maximum voluntary teeth clenching

Gianluigi Lodetti, Andrea Mapelli, Federica Musto, Riccardo Rosati, Chiarella Sforza

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

To assess the surface electromyographic spectral characteristics of masticatory and neck muscles during the performance of maximum voluntary clench (MVC) tasks, 29 healthy young adults (15 men, 14 women, mean age 22. years) were examined. Electromyography of masseter, temporalis and upper trapezius muscles was performed during 5-s MVCs either on cotton rolls or in intercuspal position. Using a fast Fourier transform, the median power frequency (MPF) was obtained for the first and last seconds of clench, and compared between sexes, muscles, sides, tests and time intervals using ANOVAs.On average, the MPFs did not differ between sexes or sides (p>0.05), but significant effects of muscle (MPF temporalis larger than masseter, larger than trapezius muscles), test (larger MPFs when clenching in intercuspal position than when clenching on cotton rolls) and time (larger MPFs in the first than in the fifth second of clench) were found.In conclusion, a set of data to characterize the sEMG spectral characteristics of jaw and neck muscles in young adult subjects performing MVC tasks currently in use within the dental field was obtained. Reference values may assist in the assessment of patients with alterations in the cranio-cervical-mandibular system.

Original languageEnglish
Pages (from-to)103-109
Number of pages7
JournalJournal of Electromyography and Kinesiology
Volume22
Issue number1
DOIs
Publication statusPublished - Feb 2012

Fingerprint

Masticatory Muscles
Neck Muscles
Superficial Back Muscles
Young Adult
Tooth
Muscles
Electromyography
Fourier Analysis
Jaw
Analysis of Variance
Reference Values
Datasets

Keywords

  • Clenching
  • Dentistry
  • Electromyography
  • FFT
  • Neck

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Biophysics
  • Clinical Neurology

Cite this

EMG spectral characteristics of masticatory muscles and upper trapezius during maximum voluntary teeth clenching. / Lodetti, Gianluigi; Mapelli, Andrea; Musto, Federica; Rosati, Riccardo; Sforza, Chiarella.

In: Journal of Electromyography and Kinesiology, Vol. 22, No. 1, 02.2012, p. 103-109.

Research output: Contribution to journalArticle

Lodetti, Gianluigi ; Mapelli, Andrea ; Musto, Federica ; Rosati, Riccardo ; Sforza, Chiarella. / EMG spectral characteristics of masticatory muscles and upper trapezius during maximum voluntary teeth clenching. In: Journal of Electromyography and Kinesiology. 2012 ; Vol. 22, No. 1. pp. 103-109.
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