Vocal Range in the Speech of Users of Low-Dose Oral Contraceptives.

Autor:	Meurer EM; Programa de Pós-Graduação em Ciências da Saúde: Ginecologia e Obstetrícia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil., Moura AD; School of Psychology, Universidade da Região da Campanha, URCAMP/Bagé Campus, Porto Alegre, Brazil., Rechenberg L; Programa de Pós-Graduação em Ciências da Saúde: Ginecologia e Obstetrícia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Department of Preventive and Social Dentistry, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil., von Eye Corleta H; Programa de Pós-Graduação em Ciências da Saúde: Ginecologia e Obstetrícia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Department of Obstetrics and Gynecology, Hospital de Clínicas de Porto Alegre, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil., Capp E; Programa de Pós-Graduação em Ciências da Saúde: Ginecologia e Obstetrícia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Department of Obstetrics and Gynecology, Hospital de Clínicas de Porto Alegre, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Excellence Initiative, Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital Heidelberg, Heidelberg, Germany. Electronic address: edcapp@ufrgs.br.
Jazyk:	angličtina
Zdroj:	Journal of voice : official journal of the Voice Foundation [J Voice] 2017 May; Vol. 31 (3), pp. 390.e17-390.e21. Date of Electronic Publication: 2016 Nov 03.
DOI:	10.1016/j.jvoice.2016.09.027
Abstrakt:	Objective: The study aimed to investigate the vocal range of oral contraceptive (OC) users aged between 20 and 30 years. Study Design: This is a cross-sectional study. Methods: Forty-eight women aged 20-30 years who used low-dose OCs and 24 age-matched women who did not use oral monophasic contraceptives (w/oOC) were enrolled. Acoustic analysis was performed using the Motor Speech Profile program, Model 4341 (Kay Elemetrics Corp). Data were analyzed using generalized estimating equation. Results: In the w/oOC group, the highest vocal tones in the sentence uttered using exclamatory intonation were similar in the follicular phases of two cycles (F1: 289 ± 46 Hz; F2: 284 ± 61 Hz). In the luteal phase of the first cycle, the vocal tones were lower, whereas in the second cycle they were higher than the tones in both follicular phases (L1: 274 ± 42 Hz; L2: 291 ± 62 Hz) (P = 0.056). In the highest vocal tones of the same sentence uttered using exclamatory intonation, the OC group showed lower tones (284 ± 53 Hz) than the w/oOC group (298 ± 44 Hz) (P = 0.048). In the lowest vocal tones of utterances of joy, the OC group showed higher values (180 ± 39 Hz) than the w/oOC group (169 ± 44 Hz) (P = 0.024). The close proximity of the highest to the lowest values of utterances of joy in the OC group (321 ± 59 Hz and 180 ± 39 Hz), when related to the w/oOC group (338 ± 65 Hz and 169 ± 44 Hz), suggests a reduced vocal modulation. Conclusions: The present findings demonstrate that the use of low-dose OCs influences the vocal range of women during menacme. (Copyright © 2017 The Voice Foundation. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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