Phonetics and Speech Sciences (말소리와 음성과학)

Korean Society of Speech Sciences (한국음성학회)
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Effects of Lax Vox voice therapy in a patient with spasmodic dysphonia: A case report

연축성 발성장애 환자의 Lax Vox 음성치료 효과

  • 임혜진 (대구가톨릭대학교 의과대학 이비인후과 음성언어치료실, 대구가톨릭대학교 언어청각치료학과) ;
  • 최성희 (대구가톨릭대학교) ;
  • 김정규 (대구가톨릭대학교 의과대학 이비인후과) ;
  • 최철희 (대구가톨릭대학교 언어청각치료학과)
  • Received : 2016.04.29
  • Accepted : 2016.06.14
  • Published : 2016.06.30
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Abstract

Recently, the Lax Vox voice therapy has been used as one of the SOVTE(Semi-Occluded Vocal Tracts Exercise). The purpose of this study was to explore the effect of Lax Vox voice therapy for a patient with Spasmodic dysphonia on voice improvement. One female spasmodic dysphonia patient(age=27) who had been diagnosed by a laryngologist received Lax Vox voice therapy. The Lax Vox protocol was configured as 5 steps (1 warm-up and 4 steps : bubbling without / with phonation/ gliding with phonation/ generalization) in this study. A total of 11 sessions were performed by a certified speech language pathologist. The present study evaluated the acoustic, aerodynamic, auditory perceptual, and patient's self-rating between pre-, mid-, and post- voice therapy. All objective and subjective parameters were improved after voice therapy; Reduced frequency variation, increased maximum phonation time, enlarged voice range, improved 'G' and 'S' in GRBAS & USDRS, and reduced VHI were observed. Especially, decreased $f_0$ and remarkably reduced voice tremor were also demonstrated following Lax Vox voice therapy. Accordingly, Lax Vox voice therapy technique can be useful for improving voice and quality of life in patients with spasmodic dysphonia.

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References

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