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de Andrade BMR, Valença EHO, Salvatori R, Souza AHO, Oliveira-Neto LA, Oliveira AHA, Oliveira MCP, Melo EV, Andrade MS, Freitas CA, Santos MP, Custodio FA, Monteiro GC, de Carvalho S, Aguiar-Oliveira MH. Effects of Therapy With Semi-occluded Vocal Tract and Choir Training on Voice in Adult Individuals With Congenital, Isolated, Untreated Growth Hormone Deficiency. J Voice 2018; 33:808.e1-808.e5. [PMID: 29567051 DOI: 10.1016/j.jvoice.2018.02.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 02/21/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Voice is produced by the vibration of the vocal folds expressed by its fundamental frequency (Hz), whereas the formants (F) are fundamental frequency multiples, indicating amplification zones of the vowels in the vocal tract. We have shown that lifetime isolated growth hormone deficiency (IGHD) causes high pitch voice, with higher values of most formant frequencies, maintaining a prepuberal acoustic prediction. The objectives of this work were to verify the effects of the therapy with a semi-occluded vocal tract (SOVTT) and choir training on voice in these subjects with IGHD. We speculated that acoustic vocal parameters can be improved by SOVTT or choir training. STUDY DESIGN This is a prospective longitudinal study without control group. METHODS Acoustic analysis of isolated vowels was performed in 17 adults with IGHD before and after SOVTT (pre-SOVTT and post-SOVTT) and after choir training (post training), in a 30-day period. RESULTS The first formant was higher in post training compared with the pre-SOVTT (P = 0.009). The second formant was higher in post-SOVTT than in pre-SOVTT (P = 0.045). There was a trend of reduction in shimmer in post-choir training in comparison with pre-SOVTT (P = 0.051), and a reduction in post-choir training in comparison with post-SOVTT (P = 0.047). CONCLUSIONS SOVTT was relevant to the second formant, whereas choir training improved first formant and shimmer. Therefore, this speech therapy approach was able to improve acoustic parameters of the voice of individuals with congenital, untreated IGHD. This seems particularly important in a scenario in which few patients are submitted to growth hormone replacement therapy.
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Affiliation(s)
- Bruna M R de Andrade
- Department of Speech Therapy, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Eugenia H O Valença
- Department of Speech Therapy, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Roberto Salvatori
- Division of Endocrinology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Anita H O Souza
- Division of Endocrinology, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | | | - Alaíde H A Oliveira
- Division of Dentistry, Federal University of Sergipe, Aracaju, Sergipe Brazil
| | - Mario C P Oliveira
- Department of Social Communication, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Enaldo V Melo
- Department of Medicine, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Michelle S Andrade
- Department of Speech Therapy, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Carolina A Freitas
- Department of Speech Therapy, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Michela P Santos
- Department of Speech Therapy, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Fillipe A Custodio
- Department of Speech Therapy, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Gisane C Monteiro
- Department of Speech Therapy, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Susana de Carvalho
- Department of Speech Therapy, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Manuel H Aguiar-Oliveira
- Division of Endocrinology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland.
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