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CC BY-NC-ND 4.0 · Int Arch Otorhinolaryngol 2019; 23(04): e384-e388
DOI: 10.1055/s-0038-1676108
Original Research
Thieme Revinter Publicações Ltda Rio de Janeiro, Brazil

Glottal Closure in Women with No Voice Complaints or Laryngeal Disorders

Carla Aparecida Cielo
1   Department of Phonoaudiology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
,
Karine Schwarz 
2   Department of Psychiatry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
,
Leila Susana Finger
3   Postgraduation Program in Human Communication, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
,
Joziane Moraes Lima
1   Department of Phonoaudiology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
,
Mara Keli Christmann
1   Department of Phonoaudiology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
› Author Affiliations
Further Information

Publication History

22 December 2017

12 October 2018

Publication Date:
28 May 2019 (online)

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Abstract

Introduction The understanding of normal vocal production is essential to guide any voice professional as it is fundamental to understand the effects of the posterior glottal gap on the vocal quality.

Objective The aim of the present study was to verify the association between glottic closure, acoustic parameters, and some characteristics of the videolaryngostroboscopy of young women without vocal complaints nor laryngeal disorders.

Methods This is a cross-sectional study with 56 women between 20 and 30 years old who underwent videolaryngostroboscopy. The acoustic parameters of the vowel /a:/ were analyzed using the Praat software, Release 4.6.10 (Paul Boersman and David Weenik, Amsterdam, Netherlands).

Statistical Analysis The chi-squared, Fischer, and Kruskall-Wallis tests were applied, with 5% significance.

Results Significant occurrence of posterior glottal gap (85.71%, p < 0.001), of normal vocal folds vibration amplitude (82.14%, p < 0.001), and of absence of significant constriction of the laryngeal vestibule (98.21%, p < 0.001); no significant association of the glottic closure with the vocal acoustic parameters; no significant association of glottic closure, vocal folds vibration amplitude, and constriction of the laryngeal vestibule.

Conclusion There was a predominance of posterior glottal gap, normal vocal folds vibration amplitude, and absence of laryngeal vestibule constriction, and no relation with the acoustic parameters, suggesting that the posterior glottal gap did not generate impact on the vocal production of the young adult women studied.

Keywords

voice - laryngeal disorders - speech therapy - larynx - glottal gap
 

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