PRAGUE MEDICAL REPORT
PRAGUE MEDICAL REPORT
Prague Medical Report je víceoborový biomedicínský časopis publikující původní recenzované vědecké články, přehledové a případové studie a krátké zprávy v angličtině. Časopis založený v roce 1885 jako Sborník lékařský vychází čtyřikrát ročně.

PRAGUE MEDICAL REPORT, Vol 123 No 4 (2022), 258–265

Amyotrophic Lateral Sclerosis: An Analysis of the Electromyographic Fatigue of the Masticatory Muscles

Ligia Maria Napolitano Gonçalves, Selma Siéssere, Flávia Argentato Cecilio, Jaime Eduardo Cecilio Hallak, Paulo Batista de Vasconcelos, Wilson Marques Júnior, Isabela Hallak Regalo, Marcelo Palinkas, Simone Cecilio Hallak Regalo

DOI: https://doi.org/10.14712/23362936.2022.24
zveřejněno: 23. 11. 2022

Abstract

Amyotrophic lateral sclerosis is a chronic degenerative disease that affects motor neurons, thereby promoting functional changes in the human body. The study evaluated the electromyographic fatigue threshold of the masseter and temporal muscles of subjects with amyotrophic lateral sclerosis. A total of eighteen subjects were divided into two groups: amyotrophic lateral sclerosis (n=9) and disease-free control (n=9). The groups were equally divided according to gender (7 males, 2 females). The fatigue threshold was analysed using median frequencies obtained during the 5-second window (initial [IP], mid [MP], and final [FP] periods) of electromyographic signalling of the masseter and temporal muscles bilaterally, with reduction in muscle force during maximal voluntary dental clenching. Significant difference (p<0.05) in the left temporal muscle: IP (p=0.05) and MP (p=0.05) periods was demonstrated. The amyotrophic lateral sclerosis group showed a decrease in median frequency of the electromyographic signal of the masseter and temporal muscles compared to the control group. Amyotrophic lateral sclerosis promotes functional impairment of the stomatognathic system, especially at the electromyographic fatigue threshold of the masticatory muscles.

klíčová slova: Amyotrophic lateral sclerosis; Electromyographic fatigue; Median frequency; Masseter muscle; Temporal muscle

Creative Commons License
Amyotrophic Lateral Sclerosis: An Analysis of the Electromyographic Fatigue of the Masticatory Muscles is licensed under a Creative Commons Attribution 4.0 International License.

167 x 240 mm
vychází: 4 x ročně
cena tištěného čísla: 450 Kč
ISSN: 1214-6994
E-ISSN: 2336-2936

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