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

IF 1 Q3 OTORHINOLARYNGOLOGY International Archives of Otorhinolaryngology Pub Date : 2023-10-23 eCollection Date: 2023-10-01 DOI:10.1055/s-0042-1759606
Yulieth Paulina Stave Gomez, Nathalisa de Morais Rockenbach, Anaelena Bragança de Moraes, Eliane Castilhos Corrêa, Ana Maria Toniolo da Silva, Angela Ruviaro Busanello-Stella
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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.

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呼吸方式和面部生长方式对儿童咀嚼肌肌电图疲劳的影响。
介绍 呼吸模式的变化影响颅面系统结构的协调发展,导致姿势、咬合和面部生长模式的变化。然而,人们对这些变化如何影响肌肉收缩模式知之甚少,无论是在休息时还是在正常或不平衡的情况下。客观的 研究鼻和口呼吸儿童咀嚼过程中的咬肌和颞前肌疲劳,并考虑他们的面部生长模式。方法:对70名符合研究标准的6-12岁儿童进行评估。进行言语听力、耳鼻喉科和头影测量评估,将他们分组。在肌电图评估中,孩子们被要求按照节拍器咀嚼口香糖,直到他们感到疲劳。在15、30、45和60时分析肌肉的中位频率 咀嚼的秒数。记录所报告的疲劳感知时间。数据采用方差分析(ANOVA)和Kruskal-Wallis和Mann-Whitney U检验进行分析。后果 两组之间没有中位频率下降模式,肌电表现和报告的疲劳时间也没有差异。结论 咀嚼肌在肌电图分析中没有显示疲劳;然而,尽管没有生理疲劳,疲劳时间还是有报道的。呼吸模式、面部生长模式及其之间的关联不会干扰肌电图信号的中值频率和疲劳时间感知的行为。
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CiteScore
2.80
自引率
0.00%
发文量
84
审稿时长
12 weeks
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