Document Detail


Effects of voice therapy on relative fundamental frequency during voicing offset and onset in patients with vocal hyperfunction.
MedLine Citation:
PMID:  21498578     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: The purpose of this study was to determine whether the relative fundamental frequency (RFF) surrounding a voiceless consonant in patients with hyperfunctionally related voice disorders would normalize after a successful course of voice therapy.
METHOD: Pre- and posttherapy measurements of RFF were compared in 16 subjects undergoing voice therapy for voice disorders associated with vocal hyperfunction.
RESULTS: A 2-way analysis of variance showed a statistically significant effect of both cycle of vibration near the consonant and therapy phase (pre- vs. post-), with p < .001. A post hoc paired Student's t test showed that posttherapy RFF measurements were significantly higher (more typical; p < .0001) than pretherapy measurements.
CONCLUSIONS: Prior to therapy, participants exhibited lowered RFF values, similar to those found previously (Stepp, Hillman, & Heaton, 2010). After successful completion of voice therapy, RFF values increased toward patterns seen previously in individuals with healthy typical voice. The goal of voice therapy in these patients was to reduce laryngeal muscle tension; therefore, the increase of RFF toward more typical values may be indicative of decreased baseline laryngeal muscle tension resulting from therapy. Results are discussed further in terms of necessary research to incorporate RFF as a clinical measure of vocal hyperfunction.
Authors:
Cara E Stepp; Gabrielle R Merchant; James T Heaton; Robert E Hillman
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2011-04-15
Journal Detail:
Title:  Journal of speech, language, and hearing research : JSLHR     Volume:  54     ISSN:  1558-9102     ISO Abbreviation:  J. Speech Lang. Hear. Res.     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-04     Completed Date:  2012-02-27     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  9705610     Medline TA:  J Speech Lang Hear Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1260-6     Citation Subset:  IM    
Affiliation:
Harvard–MIT Division of Health Sciences and Technology, Cambridge, MA, USA. cstepp@bu.edu
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Analysis of Variance
Dysphonia / physiopathology,  therapy*
Female
Humans
Laryngeal Muscles / physiopathology*
Middle Aged
Phonation
Sound Spectrography
Speech Acoustics*
Statistics, Nonparametric
Treatment Outcome
Voice Quality*
Voice Training*
Young Adult
Grant Support
ID/Acronym/Agency:
5T32DC000038-17/DC/NIDCD NIH HHS; T32 DC000038/DC/NIDCD NIH HHS
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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