Evaluation of Respiratory Muscle Strength in Mouth Breathers: Clinical Evidences

Cunha, Renata Andrade da; Cunha, Daniele Andrade da; Assis, Roberta Borba; Bezerra, Luciana Ângelo; Silva, Hilton Justino da

doi:10.1055/s-0033-1351682

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…It was possible to confirm that children with MBS present with reduced respiratory muscle strength compared to their predicted values. 14 Despite the absence of clinical evidence about respiratory muscle strength in this population, 24 Okuro et al 1 corroborated our findings in reporting reductions in P Imax and P Emax in children with MBS compared to nose-breathing children. These authors also associated these results with respiratory dynamics disorganization (ie, inefficient contraction of the diaphragm and the abdominal muscles, due to a postural disorder and reduction of nasal reflexes).…”

Section: Discussionsupporting

confidence: 73%

Effects of Inspiratory Load on Chest Wall Kinematics, Breathing Pattern, and Respiratory Muscle Activity of Mouth-Breathing Children

et al. 2020

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BACKGROUND: We sought to evaluate the acute effects of different inspiratory loads using nasal and oral interfaces on the volumes of the chest wall and its compartments, breathing pattern, and respiratory muscle activation in children with mouth-breathing syndrome. METHODS: Children with mouth-breathing syndrome were randomized into 2 groups, one with an inspiratory load intensity 20% of maximum inspiratory pressure (n 5 14), and the other with an inspiratory load intensity 40% of maximum inspiratory pressure (n 5 15). The chest wall volumes and electromyography of sternocleidomastoid, rectus abdominis, scalene, and internal intercostal muscles were used to analyze respiration against the 2 load intensities and using 2 interfaces (ie, nasal and oral). RESULTS: A total of 72 children with mouth-breathing syndrome were recruited, and 29 were evaluated in this study. The use of inspiratory load promoted improvement in the components of the breathing pattern: breathing frequency (P 5 .039), inspiratory time (P 5 .03), and total respiratory time (P 5 .043); and increases in tidal volume (P < .001), end-inspiratory volume (P < .001), and electrical activity of scalene muscles and sternocleidomastoid muscles (P < .001) when compared to quiet breathing. The load imposed via a nasal interface versus an oral interface provided an increase in tidal volume (P 5 .030), endinspiratory volume (P 5 .02), and electrical activity of scalene muscles (P < .001) and sternocleidomastoid muscles (P 5 .02). CONCLUSIONS: The use of acute inspiratory loads improved the breathing pattern and increased lung volume and electrical activity of inspiratory muscles. This work brings new perspective to the investigation of using nasal interfaces during the application of inspiratory loads. The nasal interface was more effective compared to the oral interface commonly used in clinical practice.

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Section: Discussionsupporting

confidence: 73%

Effects of Inspiratory Load on Chest Wall Kinematics, Breathing Pattern, and Respiratory Muscle Activity of Mouth-Breathing Children

et al. 2020

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“…To improve RMS, it is important to be reliably evaluated [7]. Thus, the purpose of this study was to investigate the maximum inspiratory (MIP) and maximum expiratory pressure (MEP), using two different portable devices (MicroRPM [CareFusion, Kent, United Kingdom] versus AirOFit PRO™ [AirOFit, Copenhagen, Denmark]).…”

Section: Introductionmentioning

confidence: 99%

Respiratory Muscle Strength: New Technology for Easy Assessment

Stavrou

Tourlakopoulos

Daniil

et al. 2021

Cureus

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Implicações da respiração oral na função pulmonar e músculos respiratórios

et al. 2016

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The mouth breathing syndrome is characterized by a set of signs and symptoms, which may be present in subjects who replace an adequate and efficient nasal breathing mode by the mouth or mist breathing mode, for a period equal or superior of six months. The mouth or mist breathing mode may be associated to changes in the ventilatory function and mechanics. This review has the objective of investigating more deeply the consequences of the mouth breathing in the lung function and respiratory muscles, emphasizing the development of such changes since childhood to adult age. Eighteen articles were selected through data basis PubMed and Web of Science and they were grouped in the text, comprehending the follow topics:1) Implications of mouth breathing on the lung function and 2)Implications of mouth breathing on the respiratory muscles. From the information derivate of the analyzed articles, it may realized that few studies reject or did not find some relation between pulmonary changes and mouth breathing. It was suggested that the muscular unbalance produced by these changes may contribute for the mechanic disadvantage of the diaphragm muscle and increase of accessory inspiratory muscles work. Nevertheless, studies with more selective method, including objective and reproducible evaluation of the respiratory muscles are still need. Keywords: Mouth Breathing; Respiratory System; Pulmonary Ventilation; Respiratory Muscles RESUMO A Síndrome do Respirador Oral é caracterizada por um conjunto de sinais e sintomas que podem estar presentes em indivíduos que substituem o modo adequado e eficiente da respiração nasal pelo modo respiratório oral ou misto, por um período igual ou superior a seis meses. O modo respiratório oral ou misto pode estar associado a mudanças na função e mecânica ventilatória. Esta revisão tem como objetivo investigar mais profundamente as consequências da respiração oral na função pulmonar e músculos respiratórios, ressaltando o desenvolvimento de tais alterações desde a infância até a idade adulta. Foram selecionados 18 artigos por meio das bases de dados Pubmed e Web of Science e foram agrupados no texto, compreendendo os seguintes tópicos: 1) Implicações da respiração oral sobre a função pulmonar e 2) Implicações da respiração oral sobre os músculos respiratórios. A partir das informações oriundas dos resultados dos artigos analisados, percebe-se que poucos estudos refutam ou não encontram alguma relação entre as alterações pulmonares e a respiração oral. Sugere-se que, o desequilíbrio muscular produzido por estas alterações pode contribuir para a desvantagem mecânica do músculo diafragma e aumento do trabalho dos músculos acessórios da inspiração. Entretanto, são necessários estudos com métodos mais criteriosos, incluindo avaliações objetivas e reprodutíveis dos músculos respiratórios.

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Evaluation of Respiratory Muscle Strength in Mouth Breathers: Clinical Evidences

Cited by 3 publications

References 19 publications

Effects of Inspiratory Load on Chest Wall Kinematics, Breathing Pattern, and Respiratory Muscle Activity of Mouth-Breathing Children

Effects of Inspiratory Load on Chest Wall Kinematics, Breathing Pattern, and Respiratory Muscle Activity of Mouth-Breathing Children

Respiratory Muscle Strength: New Technology for Easy Assessment

Implicações da respiração oral na função pulmonar e músculos respiratórios

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