Vocal Warm-up and Respiratory Muscle Training

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

41 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-07-31

Study Completion Date

2013-09-30

Brief Summary

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The purpose of this study is to verify the effects of two speech-pathology interventions: vocal warm-up and respiratory training in teachers who work in a public school of the city of Salvador-Bahia, with or without complaints of vocal disorders. It is a preventive study and the hypothesis is that both approaches can produce positive voice changes, but the Vocal Warm-up will produce the most significant changes.

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Detailed Description

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Randomized Clinical Trial where participants were allocated into groups: Vocal Warm-up (to perform exercises of resistance and flexibility for 13 minutes before teaching, during six weeks) and Respiratory Muscle Training (to perform exercises to strengthen the respiratory muscles through the use of incentive respiratory equipment. Five repetitions of exhales with an interval of thirty seconds between each one were performed. It was requested rest for two minutes, repeating the procedure four times with the total of five series. These exercises were performed for 13 minutes before teaching, during six weeks).

Outcomes analyzed: demographics and teaching activity characteristics; symptoms, habits and factors associated with voice disorders; self-reported voice handicap (Voice Handicap Index-VHI-10); vocal severity rating (Vocal Severity Scale); and acoustic parameters through the computerized acoustic voice analysis program VoxMetria (CTS Informatics).

Conditions

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Voice Disorders

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Vocal Warm-up

Vocal Warm-up group performed 13 minutes of vocal warm-up exercises everyday before teaching over a course of 6 weeks, with one session exercise per day.

Group Type EXPERIMENTAL

Vocal Warm-up

Intervention Type BEHAVIORAL

Vocal Warm-up group performed 13 minutes of vocal warm-up exercises everyday before teaching over a course of 6 weeks, with one session exercise per day.

Respiratory Muscle Training

Respiratory Muscle Training group performed 13 minutes of Respiratory Muscle Training everyday before teaching over a course of 6 weeks, with one session exercise per day.

Group Type EXPERIMENTAL

Respiratory Muscle Training

Intervention Type BEHAVIORAL

Respiratory Muscle Training group performed 13 minutes of Respiratory Muscle Training everyday before teaching over a course of 6 weeks, with one session exercise per day.

Interventions

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Vocal Warm-up

Vocal Warm-up group performed 13 minutes of vocal warm-up exercises everyday before teaching over a course of 6 weeks, with one session exercise per day.

Intervention Type BEHAVIORAL

Respiratory Muscle Training

Respiratory Muscle Training group performed 13 minutes of Respiratory Muscle Training everyday before teaching over a course of 6 weeks, with one session exercise per day.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Age between 20-60.
* No occurence of speech therapy simultaneously to the intervention

Exclusion Criteria

* Professional voice use in another activity;
* Frequent use of alcohol and tobacco;
* Influenza and/or upper respiratory tract infections (eg, rhinitis, sinusitis, pharyngitis) during the period of participation in the research.

Minimum Eligible Age

20 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes