The Japan Journal of Logopedics and Phoniatrics
Online ISSN : 1884-3646
Print ISSN : 0030-2813
ISSN-L : 0030-2813
Originals
Factors Influencing Therapeutics Effects of Vocal Function Exercise (VFE)
Naoko KawamuraOsamu ShiromotoRyuichi MochizukiShinobu IwakiYoko Umeda
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JOURNAL FREE ACCESS

2014 Volume 55 Issue 2 Pages 137-145

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Abstract

Objective: The purpose of this research was to examine the training effects of the various Vocal Function Exercise (VFE) programs, and to examine factors which influence their therapeutic effects.
Method: First, 18 patients with dysphonia were randomly classified into two groups - group A demonstrating nasalized vowel prolongations before producing pitch glides, and group B presenting pitch glides before producing nasalized vowel prolongations - and training was begun. Then, we examined 11 of the subjects who were able to complete the treatment. Comparison was performed by analysis of variance (ANOVA) using the following dependent variables: phonatory function parameters, acoustic parameters and subjective evaluation.
Results and Conclusion: After training in nasalized vowel prolongations by VFE intensively in isolation for two weeks, maximum phonation time (MPT) appeared to have direct influence. Results suggested that regardless of the symptoms of the dysphonia and the contents of the training program, phonatory function and subjective evaluation are improved after two to four weeks of VFE training. Because considerable time may be needed in order to realize effect from exercise alone in expansion of the F0-range, we think that it is useful to carry out the various programs simultaneously according to their original methods.

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© 2014 The Japan Society of Logopedics and Phoniatrics
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