Voice Disorders
Conditions
Interventions
This is a single-arm, single-blind, crossover clinical study with a one-week washout. A total of 30 singers who meet the eligibility criteria will be allocated to carry out two interventions, one week
Sponsors
Faculdade de Medicina da Universidade Federal de Minas Gerais
Faculdade de Medicina da Universidade Federal de Minas Gerais
Eligibility
Sex/Gender
Female
Age
18 Years to 55 Years
Inclusion criteria
Inclusion criteria: Women choristers active in Belo Horizonte choirs; between 18 and 55 years old; with more than 1 year of choir experience
Exclusion criteria
Exclusion criteria: Smoking choristers; with self-reported vocal complaints; during menstrual period; self-report of disease of cardiovascular origin, hormonal, neurological disease; presence of cleft lips or palate; facial or rib fractures; diagnosed with dysphonia; with vocal complaints; with hearing complaints; diagnosed with hearing loss; with upper airway infection at the time of evaluation; singers in speech therapy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Evaluate changes in voice and breathing self-assessment before and after warm-ups using the visual analogue scale (VAS); EASE-BR scale, specific protocol to evaluate the voice after a singing task, consisting of 22 questions about the singing voice, with the possibility of recording the frequency of occurrence (0 = no, 1 = a little, 2 = moderately, and 3 = a lot). Evaluate the changes in your voice self-assessment qualitatively through two open questions after warm-ups: please, regarding your voice and breathing, indicate whether you now feel worse, no change or better; describe three adjectives from this perception; Borg CR10-BR scale adapted for vocal effort for post-warm-up singing. Vocal effort consists of a series of numbers from 0 to 10, accompanied by descriptions that help the individual to qualify the sensation of vocal effort. Each number on the scale represents an increasing level of perceived effort, where 0 indicates no effort and 10 indicates extremely intense vocal effort;Evaluate changes in the auditory-perceptual assessment of spoken and sung voices. The pre and post moments will be randomly arranged for evaluating judges and only the researchers will have access to this information. Three speech therapists specializing in voice and three singing teachers, with a minimum of five years' experience, will listen and evaluate, through a comparison task, which of the two emissions is worse, shows no changes or better, considering vocal quality. To determine intra-rater agreement, 20% of the sample will be randomly replicated. The Google Forms platform will be used to organize and obtain responses from the judging speech therapists;To evaluate the changes in acoustic measurements, participants will emit the sustained vowel /a/ in their usual tone. fundamental frequency (fo), jitter (%), pitch perturbation quotient (PPQ%), shimmer (%), amplitude perturbation quotient (APQ%) and noise-harmonic ratio (NHR dB) and cepstral measurements, Cepstral Peak Prominen | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcomes are not expected | — |
Countries
Brazil
Contacts
Public ContactRenato;Leticia Rodrigues;Teixeira
Faculdade de Medicina da Universidade Federal de Minas Gerais;Faculdade de Medicina da Universidade Federal de Minas Gerais
Outcome results
None listed