Open Access
CC BY-NC-ND 4.0 · Int Arch Otorhinolaryngol 2023; 27(04): e672-e679
DOI: 10.1055/s-0042-1759606
Original Research

Influence of Breathing Modes and Facial Growth Patterns on Electromyographic Fatigue of Masticatory Muscles in Children

Yulieth Paulina Stave Gomez
1   Fonoaudióloga, Mestre em Gestão de projetos pela Universidad Politécnica del Litoral, Guayas, Ecuador
,
2   Fonoaudióloga pela Universidade Federal de Santa Maria, CPF, Brazil
,
Anaelena Bragança de Moraes
3   Química Industrial, Doutora em Epidemiologia pela Universidade Federal do Rio Grande do Sul, Brazil
,
Eliane Castilhos Corrêa
4   Fisioterapeuta, Doutora em Biologia Patologia Buco Dental pela Universidade Estadual de Campinas, Brazil
,
Ana Maria Toniolo da Silva
5   Fonoaudióloga, Doutora em Distúrbios da Comunicação Humana (Fonoaudiologia) pela Universidade Federal de São Paulo, Brazil
,
Angela Ruviaro Busanello-Stella
6   Fonoaudióloga, Doutora em Distúrbios da Comunicação Humana pela Universidade Federal de Santa Maria, Brazil
› Author Affiliations

Funding Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
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Abstract

Introduction Changes in breathing patterns affect the harmonious development of the structures of the craniofacial system, leading to changes in posture, occlusion, and facial growth patterns. However, little is known about how these changes influence the muscle contraction patterns, either at rest or while functioning, and either in a normal or unbalanced condition.

Objective To study the masseter and anterior temporal muscles fatigue during mastication in nasal- and mouth-breathing children, also considering their facial growth patterns. Methods: A total of 70 children aged 6 to 12 years old who met the study criteria were assessed. Speech-language-hearing, otorhinolaryngologic, and cephalometric assessments were performed to divide them into groups. In the electromyographic assessment, the children were asked to chew gum following a metronome until they felt fatigued. The median frequency of the muscles was analyzed at 15, 30, 45, and 60 seconds of mastication. The reported time of fatigue perception was recorded. The data were analyzed with analysis of variance (ANOVA) and the Kruskal-Wallis and the Mann-Whitney U tests.

Results There were no median frequency decrease patterns nor differences in the myoelectric manifestations and reported time of fatigue between the groups.

Conclusion The masticatory muscles did not reveal fatigue in the electromyographic analysis; however, the fatigue time was reported, despite the absence of physiological fatigue. The breathing mode, the facial growth pattern, and the association between them did not interfere with the behavior of the median frequency of the electromyographic signal and the fatigue time perception.

The present work was conducted at the Laboratório de Motricidade Orofacial of the Phonoaudiology Department of the Universidade Federal de Santa Maria.




Publication History

Received: 28 February 2022

Accepted: 19 August 2022

Article published online:
23 October 2023

© 2023. Fundação Otorrinolaringologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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