Revista CEFAC (Feb 2012)
Capacidade vital e tempos máximos de fonação de /e/ áfono e de /s/ em mulheres adultas Vital capacity and maximum phonation times of voiceless /e/ and /s/ in adult women
Abstract
OBJETIVO: verificar a capacidade vital (CV) e os valores de tempo máximo de fonação (TMF) do /e/ áfono (representado por /ė/) e do /s/ de mulheres adultas, estabelecendo o perfil da amostra e comparando-o com o padrão de normalidade proposto. MÉTODO: coleta do maior valor de três medidas de CV, de TMF/ė/ e de TMF/s/; e da estatura auto-referida de 48 mulheres entre 18 e 44 anos de idade, normais de acordo com avaliações otorrinolaringológica, miofuncional, vocal, respiratória e auditiva. Aplicou-se análise estatística descritiva, teste de normalidade de Shapiro-Wilk, e cálculo do coeficiente de variação; adotou-se o nível de significância de 5%. RESULTADOS: valores médios de CV de 3.206ml, de TMF/s/ de 17,49s e de estatura de 1,65m, com distribuição normal; TMF/ė/ sem distribuição normal e média de 10,43s significantemente menor do que os valores da literatura (PPURPOSE: to check the vital capacity (VC) and the maximum time values of phonation (MTP) as for the voiceless /e/ (represented by /é/) and the /s/ in adult women, comparing it with the proposed normality pattern. METHOD: collecting VC, MTP/é/, MTP/s/ values and self-reported stature of 48 women between 18 and 44-year old, normal condition according to otorhinolaryngological, myofunctional, vocal, breathing and hearing ratings. We applied descriptive statistical analysis, Shapiro-Wilk normality test and calculated the coefficient variation; we adopted a 5% significance level. RESULTS: mean values: 3.206ml as for VC, 17.49s as for MTP/s/ and 1.65m as for height, with normal distribution, MTP/é/ did not have a normal distribution and whose 10.43s average was significantly lower than the literature values (P<0.001). However, MTP/é/ showed quite close medium and median values (10.43 and 10.25s) and coefficient variation very similar to the MTP/s/. CONCLUSION: for the analyzed group, we found medium VC and MTP values compatible with those reported in the literature. and medium MTP/é/ values below those proposed in the literature. The average values of MTP/é/ were found to be below the one proposed by the existing theoretical framework, showing the need for more similar studies - to investigate the field of measuring MTP/ė/ - in order to set up the normal range according to gender and more scientific data on what appears to be the most suitable for the separate evaluation of respiratory control during emission.
