کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5124282 | 1378441 | 2017 | 5 صفحه PDF | دانلود رایگان |
SummaryObjectiveThe 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: 289â±â46âHz; F2: 284â±â61âHz). 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: 274â±â42âHz; L2: 291â±â62âHz) (Pâ=â0.056). In the highest vocal tones of the same sentence uttered using exclamatory intonation, the OC group showed lower tones (284â±â53âHz) than the w/oOC group (298â±â44âHz) (Pâ=â0.048). In the lowest vocal tones of utterances of joy, the OC group showed higher values (180â±â39âHz) than the w/oOC group (169â±â44âHz) (Pâ=â0.024). The close proximity of the highest to the lowest values of utterances of joy in the OC group (321â±â59âHz and 180â±â39âHz), when related to the w/oOC group (338â±â65âHz and 169â±â44âHz), suggests a reduced vocal modulation.ConclusionsThe present findings demonstrate that the use of low-dose OCs influences the vocal range of women during menacme.
Journal: Journal of Voice - Volume 31, Issue 3, May 2017, Pages 390.e17-390.e21