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Comparison of methods to extract the maximum phonation duration in individuals without vocal complaints

PURPOSE:

to check the credibility between an acoustic program, an experienced evaluator and a non-experienced evaluator measuring the Brazilian vowel /a/ in subjects with no voice complaints and to verify if there is difference between the highest value of three emissions of MPD with the average of these values.

METHODS:

56 adults recorded the vowel /a/ in MPD. One measurement was performed by an experienced speech pathologist and the other by a newly graduated speech pathologist, with a stop watch. A third valuator measured the MPD in an acoustic program. The difference between the average of the three emissions and the highest value of MPD obtained by each evaluator was compared.

RESULTS:

there was no difference between the evaluators and an acoustic program the only difference found was among considering the average of the three emissions or the highest value of MPD.

CONCLUSIONS:

the MPD has high reliability regardless the form of extraction and the clinical experience of the evaluator. There was a difference in the value of MPD comparing the average of three emissions with its highest value, which suggests that we should always follow the same pattern in our assessments and reassessments.

Voice; Phonation; Health Evaluation


ABRAMO Associação Brasileira de Motricidade Orofacial Rua Uruguaiana, 516, Cep 13026-001 Campinas SP Brasil, Tel.: +55 19 3254-0342 - São Paulo - SP - Brazil
E-mail: revistacefac@cefac.br