Respiratory Muscle Strength, Sound Pressure Level, and Vocal Acoustic Parameters and Waist Circumference of Children With Different Nutritional Status.

Autor: Pascotini Fdos S; Human Communication Disorders, Federal University of Santa Maria/UFSM, Santa Maria, Rio Grande do Sul, Brazil. Electronic address: fepascotini@hotmail.com., Ribeiro VV; Human Communication Disorders, Federal University of Santa Maria/UFSM, Santa Maria, Rio Grande do Sul, Brazil., Christmann MK; Human Communication Disorders, Federal University of Santa Maria/UFSM, Santa Maria, Rio Grande do Sul, Brazil., Tomasi LL; Federal University of Santa Maria/UFSM, Santa Maria, Rio Grande do Sul, Brazil., Dellazzana AA; Federal University of Santa Maria/UFSM, Santa Maria, Rio Grande do Sul, Brazil., Haeffner LS; Human Communication Disorders, Federal University of Santa Maria/UFSM, Santa Maria, Rio Grande do Sul, Brazil., Cielo CA; Human Communication Disorders, Federal University of Santa Maria/UFSM, Santa Maria, Rio Grande do Sul, Brazil.
Jazyk: angličtina
Zdroj: Journal of voice : official journal of the Voice Foundation [J Voice] 2016 Jan; Vol. 30 (1), pp. 30-5. Date of Electronic Publication: 2015 Dec 10.
DOI: 10.1016/j.jvoice.2015.02.006
Abstrakt: Objective: Relate respiratory muscle strength (RMS), sound pressure (SP) level, and vocal acoustic parameters to the abdominal circumference (AC) and nutritional status of children.
Study Design: This is a cross-sectional study.
Methods: Eighty-two school children aged between 8 and 10 years, grouped by nutritional states (eutrophic, overweight, or obese) and AC percentile (≤25, 25-75, and ≥75), were included in the study. Evaluations of maximal inspiratory pressure (IPmax) and maximal expiratory pressure (EPmax) were conducted using the manometer and SP and acoustic parameters through the Multi-Dimensional Voice Program Advanced (KayPENTAX, Montvale, New Jersey).
Results: There were significant differences (P < 0.05) in the EPmax of children with AC between the 25th and 75th percentiles (72.4) and those less than or equal to the 25th percentile (61.9) and in the SP of those greater than or equal to the 75th percentile (73.4) and less than or equal to the 25th percentile (66.6). The IPmax, EPmax, SP levels, and acoustic variables were not different in relation to the nutritional states of the children. There was a strong and positive correlation between the coefficient of amplitude perturbations (shimmer), the harmonics-to-noise ratio and the variation of the fundamental frequency, respectively, 0.79 and 0.71.
Conclusions: RMS and acoustic voice characteristics in children do not appear to be influenced by nutritional states, and respiratory pressure does not interfere with acoustic voice characteristics. However, localized fat, represented by the AC, alters the EPmax and the SP, each of which increases as the AC increases.
(Copyright © 2016 The Voice Foundation. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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