Analysis of the Effects of Vocal Conditioning Through Semi-occluded Vocal Tract Exercises in Choir Singers

Study Overview
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Brief Summary
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This research aims to evaluate the effects of vocal conditioning through two semioccluded vocal tract exercises (SOVTE) in choir singers.

Detailed Description
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This research aims to evaluate the effects of vocal conditioning through two semioccluded vocal tract exercises (SOVTE) - Finnish tube and phonation in high strength straw - in vocal parameters, vocal extension profile and maximum phonation time for a period of four months in a group of singers. acoustic analysis will be performed of the average parameters of the fundamental frequency (F0), jitter, shimmer and glottal to Noise Excitation (GNE) by VoxMetria program and perceptual analysis through Consensus Assessment Perceptual Hearing the Voice Protocol (CAPE-V) three times: before the vocal conditioning, after the last meeting of the technical realization and a week after the vocal conditioning period.

Official Title
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Analysis of the Effects of Vocal Conditioning Through Semi-occluded Vocal Tract Exercises in Choir Singers

Conditions
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Voice

Intervention / Treatment
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* Other: Finnish tube
* Other: Staw phonation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: signing of the Informed Consent (IC). Exclusion Criteria: voice disorders diagnosed by otolaryngologist physician; smokers; presence below 75% in the meetings.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Group 1<br>20 individuals of Coral UFCSPA without voice problems carry out the exercise with Finnish tube before choir practice once a week for a period of 14 weeks. The exercise will be carried out with blowing set to sound at regular frequency, with frequency variation and with the melody of Happy Birthday; each sequence will be held for 2 minutes with 1 minute interval between them. | Other: Finnish tube<br>* Practice the exercise with Finnish tube before choir practice once a week for a period of 14 weeks.<br>|
| Experimental: Group 2<br>20 individuals of Coral UFCSPA without voice problems carry out the exercise straw phonation before choir practice once a week for a period of 14 weeks. The exercise will be carried out with blowing set to sound at regular frequency, with frequency variation and with the melody of Happy Birthday; each sequence will be held for 2 minutes with 1 minute interval between them. | Other: Staw phonation<br>* Practice the exercise straw phonation before choir practice once a week for a period of 14 weeks.<br>|
| No Intervention: Group 3<br>10 individuals of Coral UFCSPA without voice problems. Untreated group. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Voice quality | Improved singing voice quality standard demonstrated by the perceptual analysis of voice with CAPE- V, in which there is a decrease in score value pre and post intervention. | 3 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mean fundamental frequency | Improvement of acoustic parameters, demonstrated by VoxMetria software. | 3 months | 
| Jitter | Improvement of acoustic parameters, demonstrated by VoxMetria software. | 3 months | 
| Shimmer | Improvement of acoustic parameters, demonstrated by VoxMetria software. | 3 months | 
| Glottal to Noise Excitation (GNE) | Improvement of acoustic parameters, demonstrated by VoxMetria software. | 3 months | 
| Profile vocal range | Improved profile vocal range, shown by Vocalgrama software. | 3 months | 
| Maximun phonation time | Improvement of maximum phonation time, demonstrated by measuring the maximum times of sustaining vowels and phonemes /s/ and /z/. | 3 months |