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Purpose: To identify the immediate effects of voiced vibration and vocal fry exercises on healthy subjects by means of acoustic parameters and high-speed kymography. Methods: Thirty healthy subjects (18 women and 12 men, aged from 19 to 45 years old) participated in this study. The voices were recorded at the range of 44.100 samples/second, before and after of the vocal exercises. We developed a computational routine to extract jitter and shimmer. High-speed kymography was generated from laryngeal images for the analysis of the phase times: closed (CPh), open (OPh), of closing (cPh) and of opening (oPh) and used the paired t-Student test and the Mann-Whitney test, with a significance level of 0.05. Results: After voiced vibrations, acoustic parameters showed reduced jitter for both genders (p=0.018 for men and p<0.01 for women) and reduced shimmer for female voices (p<0.01). There was a decrease in CPh (p=0.046) and cPh (p=0.026) and an increase in OPh (p=0.05) in female vocal folds. After vocal fry, we identified decreased jitter (p<0.01) in female voices and cPh (p=0.026) in male vocal folds. Conclusion: We observed more positive immediate effects of the voiced vibrations, mainly in voice quality and vocal folds among females. Nevertheless, studies with larger male sample and investigation of the appropriate time of vocal fry are necessary to confirm the results of this search.

AGRADECIMENTOSAgradeço a Deus por me colocar sempre no caminho certo e me permitir conhecer pessoas que tornam a trilha deste caminho cada vez mais acessível.Ao Programa de Pós-Graduação Interunidades em Bioengenharia por me permitir ser aluna e realizar esta pesquisa.Aos meus orientadores prof. Dr Arlindo Neto Montagnoli e profa. Dra. Maria Eugenia Dajer, pela paciência e confiança dada ao longo deste trabalho. Obrigada pelos ensinamentos, investimentos e credibilidade para o meu crescimento profissional. Obrigada por permitirem meu convívio no grupo de pesquisa, onde pude passar por experiências do Ser pesquisador.Ao meu marido Adilson Barros Wanderley, por me dedicar todo seu amor, carinho, companheirismo, compreensão, amizade, paciência, confiança e credibilidade. Obrigada por apoiar todas as minhas escolhas, até mesmos as mais incertas, e por estar sempre presente. Obrigada por torcer, vibrar e contribuir para meus sucessos e sonhos.Aos meus pais, José e Maria, por me ensinarem os primeiros passos para alcançar todos os meus objetivos, sempre, respeitando os meus semelhantes.Ao prof. Dr José Carlos Pereira, por abrir-me a primeira porta para o início de minha carreira em São Carlos, apresentando-me as pessoas cruciais para meu desenvolvimento.Aos professores Marcelo Basílio Joaquim, Luís Fernando Costa Alberto e José Marques Novo Junior, por contribuírem com minha formação de doutora em bioengenharia ao longo do meu curso.Obrigada à Fga. Monike Tsutsumi, pelo companheirismo e pela generosidade em compartilhar todas as suas experiências de sucesso comigo. Agradeço as psicólogas: Lia, Jéssica, Maria e Camila pelo agradável convívio nos momentos de descontração no consultório. E as fonoaudiólogas: Maíra Botta e Priscilla Velloso, pro cruzarem meu caminho com oportunidades em uma etapa importante do meu trabalho e crescimento profissional.Obrigada a todos os amigos que fiz em São Carlos, os quais foram responsáveis por muitos momentos de descontração, mas também de discussões que, de alguma forma, contribuiram na construção deste trabalho. Agradecimentos para: Guido e Katerin, Lie, Suetake e para minha mais nova amiga de laboratório: Ana Cecília.Obrigada à família peruana: Edwin, Soledad e Gabriel, por proporcionarem momentos importantes de discussão sobre o trabalho do pesquisador e momentos de descontração. Obrigada por dividirem comigo suas experiências.Agradecimentos à família cubana: Lianet e Lian, Esperanza e Felipe, as gemias: Indara e Orieta, e todos os outros que sempre torceram pelo meu sucesso. Obrigada pelos momentos de confraternização, amizade e confiança.Agradecimentos para todos da família Pelotão, por me incluírem como membro e permitirem minha participação em todos os eventos, confraternizações, reuniões e momentos de descontração. Este convívio tornou ainda mais agradável minha jornada de trabalho em São Carlos.Obrigada aos educadores físicos: Gisele e Evert, e também para todos os profissionais do CEFER por contribuírem com a integridade de minha saúde ao elaborarem treinos de condicionament...

POSTERSwere the most common symptoms. Population surveys could better define who presents to care. Laryngology/Broncho-Esophagology incipient Vocal Nodules in Singers without Voice ComplaintsAdriana Hachiya, MD (presenter); Paula B. Baravieira; Regina A. Pimenta; Maria E. Dajer; Arlindo N. Montagnoli; Domingos H. Tsuji, MD Objective: To investigate if the presence of incipient nodular lesions, ie, the presence of turbulence of secretion where the vocal fold preferably contacts during phonation, in patients without voice complaint can affect voice quality and vocal cord vibratory parameters.Method: Twenty female professional voice users (singers) without voice complaints were included in the study. Twelve women had no vocal lesions on a previous videolaryngostroboscopy examination and 8 women showed incipient nodular lesions. The voices were recorded and submitted to auditory perceptual analysis (GRBASH) by 3 different evaluators. The examinations were recorded with a high speed imaging videolaryngoscope equipment (HS Endocam 5560, Richard Wolf GmbH, Knittlingen, Germany), running at 4000 fps. The following parameters were studied: F0, open quotient, speed quotient, time peridiocity index, and the amplitude periodicity index. The data were analyzed by X-CAD software, and t tests were performed to compare the 2 groups. Results:The auditory perceptual analysis of the voices of the 2 groups shows that both the control group and the study group have normal variability of voice quality in all vocal samples. There was no statistically significant difference in the studied vibratory parameters. Conclusion:The presence of turbulence secretion in the transition of the anterior and middle third vocal fold named in the clinical practice as incipient nodules or prenodular lesions does not reflect in changes in voice quality or vocal fold vibratory parameters on high-speed imaging in female singers without voice complaints. Method: A retrospective chart review was undertaken of all adductor spasmodic dysphonia patients treated at a tertiary care facility between 1990 and 2011. Demographic data (age and sex), voice rating, duration of voice improvement, and breathiness were evaluated and compared between Groups A and B using Student's t test and chi-square analysis. Laryngology/Broncho-EsophagologyResults: Of 478 patients identified, 305 (group A: 223; group B: 82) patients met inclusion criteria. The average age of group A was 56.2 years and group B was 57.4 years (P = .5). The female/male ratio was 2.91 for group A versus 3.56 for group B (P = .61). Good voice outcomes (grade 3 or 4) were reported by 91% of group A patients versus 94% of group B (P = .75). The average duration of voice improvement was 99.7 days for group A and 108.3 for group B (P = .54). The average duration of breathiness was 10.88 days for group A versus 15.42 for group B (P = .02). Conclusion:Patients injected with 1.25 units bilaterally had a statistically significant shorter duration period of breathiness without a statistically significant difference ...

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