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

Voice Clinical Trial

Official title:

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

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT03101449
• Other study ID #: 50412515.9.0000.5345
• Status: Active, not recruiting
• Phase: N/A
• First received: October 26, 2016
• Last updated: March 30, 2017
• Start date: March 2016
• Est. completion date: July 2017

Study information

• Verified date: March 2017
• Source: Federal University of Health Science of Porto Alegre
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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

Description:

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.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 30
• Est. completion date: July 2017
• Est. primary completion date: April 2017
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 75 Years

Eligibility

Inclusion Criteria:

• signing of the Informed Consent (IC).

Exclusion Criteria:

• voice disorders diagnosed by otolaryngologist physician;

• smokers;

• presence below 75% in the meetings.

Related Conditions & MeSH terms

• Voice

Intervention

Other:
• Finnish tube
Practice the exercise with Finnish tube before choir practice once a week for a period of 14 weeks.
• Staw phonation
Practice the exercise straw phonation before choir practice once a week for a period of 14 weeks.

Locations

Country	Name	City	State
Brazil	Federal University of Health Science of Porto Alegre	Porto Alegre	Rio Grande do Sul

Sponsors (1)

Lead Sponsor	Collaborator
Federal University of Health Science of Porto Alegre

Country where clinical trial is conducted

Brazil, 

Outcome

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