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

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

Study Overview

• Status: Unknown
• Conditions: Voice
• Intervention / Treatment: Other: Finnish tube; Other: Staw phonation

Detailed 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.

• Study Type: Interventional
• Enrollment (Actual): 30
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Brazil
  • Rio Grande do Sul
    • Porto Alegre, Rio Grande do Sul, Brazil, 90.050-170
      • Federal University of Health Science of Porto Alegre

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 75 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• signing of the Informed Consent (IC).

Exclusion Criteria:

• voice disorders diagnosed by otolaryngologist physician;
• smokers;
• presence below 75% in the meetings.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Group 1; 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; Practice the exercise with Finnish tube before choir practice once a week for a period of 14 weeks.
Experimental: Group 2; 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; Practice the exercise straw phonation before choir practice once a week for a period of 14 weeks.
No Intervention: Group 3; 10 individuals of Coral UFCSPA without voice problems. Untreated group.

What is the study measuring?

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

Collaborators and Investigators

• Sponsor: Federal University of Health Science of Porto Alegre

Study record dates

Study Major Dates

• Study Start: March 1, 2016
• Primary Completion (Anticipated): April 1, 2017
• Study Completion (Anticipated): July 1, 2017

Study Registration Dates

• First Submitted: October 26, 2016
• First Submitted That Met QC Criteria: March 30, 2017
• First Posted (Actual): April 5, 2017

Study Record Updates

• Last Update Posted (Actual): April 5, 2017
• Last Update Submitted That Met QC Criteria: March 30, 2017
• Last Verified: March 1, 2017

More Information

Terms related to this study

• Other Study ID Numbers: 50412515.9.0000.5345

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No