Multidimensional voice assessment: the immediate effects of Lax Vox® in singers with voice complaints

• Autor(a) principal: Matta,Ruliano Santana da
• Data de Publicação: 2021
• Outros Autores: Santos,Marco Aurélio Rocha, Plec,Elisa Meiti Ribeiro Lin, Gama,Ana Cristina Côrtes
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista CEFAC (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-18462021000200502
• topic: Voice; Dysphonia; Singing; Voice Disorders; Speech, Language and Hearing Sciences

ABSTRACT Purpose: to multidimensionally assess the effect of the Lax Vox® vocal technique on singers with voice complaints. Methods: a comparative intrasubject study that assessed 30 singers - 13 males and 17 females, aged 18 to 55 years - who self-reported voice complaints and had voice problems symptoms. The participants were submitted to voice assessment with perceptive-auditory, acoustic, aerodynamic, and electroglottographic voice analysis, as well as laryngeal assessment with high-speed videolaryngoscopy. The participants were assessed at two moments: 1) at the beginning of the data collection; and 2) five minutes after performing the Lax Vox® vocal technique. The groups were compared with appropriate statistical tests, with a 5% significance level. Results: in the acoustic analysis, there was an increase in the fundamental frequency for males, after using the Lax Vox® vocal technique. In the aerodynamic assessment, there was an increase in the airflow mean values during vocalization, as well as in aerodynamic power after using the Lax Vox® vocal technique in both groups. Conclusion: the Lax Vox® vocal technique, in the studied singers with a complaint of dysphonia, promoted an increase in the fundamental frequency, for males. In the aerodynamic parameters, in both sexes, it promoted an increase in the airflow and aerodynamic power.