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

Publication date: Available online 3 November 2016
Source:Journal of Voice
Author(s): Eliséa Maria Meurer, Andressa Dias Moura, Leila Rechenberg, Helena von Eye Corleta, Edison Capp
ObjectiveThe study aimed to investigate the vocal range of oral contraceptive (OC) users aged between 20 and 30 years.Study DesignThis is a cross-sectional study.MethodsForty-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.ResultsIn 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.ConclusionsThe present findings demonstrate that the use of low-dose OCs influences the vocal range of women during menacme.



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