Characteristics of Grouped Discharge Waveforms Observed in Long-term Masseter Muscle Electromyographic Recording

A Preliminary Study

Research output: Contribution to journalArticle

Abstract

We investigated the characteristics of grouped discharge (GD) waveforms obtained from long-term masseter electromyogram (EMG) recording in 6 female temporomandibular disorder (TMD) patients with myofascial pain and 6 healthy females. The EMG measurement was performed from the morning of the experiment day until the subject woke up the next day. We observed a significantly larger number of GD waveforms in the TMD group compared to the control group (p=0.002). Our results indicate that the existence of GD waveforms in masseter EMGs might be a predictor of future TMD with myofascial pain.

Original languageEnglish
Pages (from-to)357-360
Number of pages4
JournalActa medica Okayama
Volume73
Issue number4
DOIs
Publication statusPublished - Aug 1 2019

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Masseter Muscle
Temporomandibular Joint Disorders
Muscle
Electromyography
Pain
Experiments
Control Groups

Keywords

  • electromyography
  • grouped discharge
  • masseter muscle
  • temporomandibular disorder

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

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title = "Characteristics of Grouped Discharge Waveforms Observed in Long-term Masseter Muscle Electromyographic Recording: A Preliminary Study",
abstract = "We investigated the characteristics of grouped discharge (GD) waveforms obtained from long-term masseter electromyogram (EMG) recording in 6 female temporomandibular disorder (TMD) patients with myofascial pain and 6 healthy females. The EMG measurement was performed from the morning of the experiment day until the subject woke up the next day. We observed a significantly larger number of GD waveforms in the TMD group compared to the control group (p=0.002). Our results indicate that the existence of GD waveforms in masseter EMGs might be a predictor of future TMD with myofascial pain.",
keywords = "electromyography, grouped discharge, masseter muscle, temporomandibular disorder",
author = "Naoto Maeda and Naoki Kodama and Yousuke Manda and Shigehisa Kawakami and Kazuhiro Oki and Shougo Minagi",
year = "2019",
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T1 - Characteristics of Grouped Discharge Waveforms Observed in Long-term Masseter Muscle Electromyographic Recording

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AU - Maeda, Naoto

AU - Kodama, Naoki

AU - Manda, Yousuke

AU - Kawakami, Shigehisa

AU - Oki, Kazuhiro

AU - Minagi, Shougo

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N2 - We investigated the characteristics of grouped discharge (GD) waveforms obtained from long-term masseter electromyogram (EMG) recording in 6 female temporomandibular disorder (TMD) patients with myofascial pain and 6 healthy females. The EMG measurement was performed from the morning of the experiment day until the subject woke up the next day. We observed a significantly larger number of GD waveforms in the TMD group compared to the control group (p=0.002). Our results indicate that the existence of GD waveforms in masseter EMGs might be a predictor of future TMD with myofascial pain.

AB - We investigated the characteristics of grouped discharge (GD) waveforms obtained from long-term masseter electromyogram (EMG) recording in 6 female temporomandibular disorder (TMD) patients with myofascial pain and 6 healthy females. The EMG measurement was performed from the morning of the experiment day until the subject woke up the next day. We observed a significantly larger number of GD waveforms in the TMD group compared to the control group (p=0.002). Our results indicate that the existence of GD waveforms in masseter EMGs might be a predictor of future TMD with myofascial pain.

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