Nasal aeration and respiratory muscle strength in mouth breathers' children/Aeracao nasal e forca muscular respiratoria em criancas respiradoras orais

• Published in: Revista CEFAC 2015-09, Vol.17 (5), p.1432
• Main Authors: da Cunha, Renata Andrade, da Cunha, Daniele Andrade, Bezerra, Luciana Angelo, de Melo, Ana Carolina Cardoso, Peixoto, Decio Medeiros, Tashiro, Tetsuo, da Silva, Hilton Justino
• Format: Article
• Language: Spanish
• ISSN: 1516-1846
• DOI: 10.1590/1982-021620151753315

Purpose: to observe whether there is a relationship between respiratory muscle strength and degree of nasal aeration in Mouth Breathing children. Methods: this is an observational and a comparative cross-sectional study. 32 Mouth Breathing children with allergic rhinitis (21 boys and 11 girls) and 30 nasal breathing without allergic rhinitis (09 boys and 21 girls) participated, 7-12 years, subjected to evaluation for nasal aeration with Altmann mirror and to evaluation of respiratory muscle strength with digital manovacuometer (MVD[R]30). Results: there was no correlation between nasal aeration and respiratory muscle strength in each subgroup. There was difference comparing values of maximal expiratory pressure between mouth breathers boys and girls (p=0,0064), and between nasal breathers boys and girls (p=0,0030). There was also difference maximal inspiratory pressure between mouth breathers boys and girls (p=0,0324), and between nasal breathers boys and girls (p=0,0210). Conclusion: it was not possible to confirm that there is a relationship between the degree of nasal aeration and respiratory muscle strength in Mouth Breathing. KEYWORDS: Mouth Breathing; Aeration; Muscle Strength; Respiration; Child Objetivo: observar se existe relacao entre forca muscular respiratoria e area da aeracao nasal em criancas respiradoras orais. Metodos: trata-se de um estudo do tipo observacional, transversal comparativo entre dois grupos. Participaram 32 criancas com Respiracao Oral secundaria a rinite alergica (21 meninos e 11 meninas) e 30 respiradoras nasais sem rinite alergica (09 meninos e 21 meninas), 7 a 12 anos, submetidas a avaliacao da aeracao nasal com o espelho de Altmann e a avaliacao da forca muscular respiratoria com o manovacuometro digital (MVD[R]30). Resultados: nao houve correlacao entre aeracao nasal e forca muscular respiratoria em cada subgrupo. Houve diferenca comparando-se valores das pressoes expiratorias maximas entre meninos e meninas respiradores orais (p=0,0064) e entre meninos e meninas respiradores nasais (p=0,0030). Tambem houve diferenca das pressoes inspiratorias maximas entre meninos e meninas respiradores orais (p=0,0324) e entre meninos e meninas respiradores nasais (p=0,0210). Conclusao: nao foi possivel confirmar a relacao entre a area de aeracao nasal e a forca muscular respiratoria nos respiradores orais. DESCRITORES: Respiracao Bucal; Aeracao; Forca Muscular; Respiracao; Crianca