반폐쇄성도훈련이 기능적 실성증 환자의 음성 개선에 미치는 효과 (Effects of Semi-Occluded Vocal Tract Exercise in Patients with Functional Aphonia)

서지정보

· 발행기관 : 대한후두음성언어의학회
· 수록지 정보 : 대한후두음성언어의학회지 / 30권 / 1호 / 48 ~ 52페이지
· 저자명 : 채혜림, 김지성, 이동욱, 최성희

초록

Background and Objectives：Functional aphonia is characterized by incomplete closure of the vocal folds. Semi-occluded vocal tract exercise (SOVTE) allows smoothly vocal folds collision without damage to the vocal folds tissues to produce normal vocal intensity. The purpose of this study is to report the effect of SOVTE in patients with functional aphonia. Materials and Method：Seven patients diagnosed with functional aphonia were treated with 1-3 voice therapy sessions using voiced lip-trill, humming, Lax Vox in SOVTE. To assess the effectiveness of semi-occluded vocal tract exercise, cepstral analysis and auditory perceptual assessment were performed before and after voice therapy. Results：F0 (fundamental frequency), CPP (cepstral peak prominence) and L/H ratio (low/high spectral ratio) were significantly increased, while CPP Standard deviation, L/H ratio Standard deviation were decreased. In addition, ‘Grade’, ‘Breathiness’ and ‘Asthenia’ were significantly decreased in the GRBAS scale after SOVTE (p＜0.05). Conclusion：In our study, SOVTE seemed to be effective to elicit voice quickly and promote vocal folds vibration without muscular effort in patients with functional aphonia.

영어초록

Background and Objectives：Functional aphonia is characterized by incomplete closure of the vocal folds. Semi-occluded vocal tract exercise (SOVTE) allows smoothly vocal folds collision without damage to the vocal folds tissues to produce normal vocal intensity. The purpose of this study is to report the effect of SOVTE in patients with functional aphonia. Materials and Method：Seven patients diagnosed with functional aphonia were treated with 1-3 voice therapy sessions using voiced lip-trill, humming, Lax Vox in SOVTE. To assess the effectiveness of semi-occluded vocal tract exercise, cepstral analysis and auditory perceptual assessment were performed before and after voice therapy. Results：F0 (fundamental frequency), CPP (cepstral peak prominence) and L/H ratio (low/high spectral ratio) were significantly increased, while CPP Standard deviation, L/H ratio Standard deviation were decreased. In addition, ‘Grade’, ‘Breathiness’ and ‘Asthenia’ were significantly decreased in the GRBAS scale after SOVTE (p＜0.05). Conclusion：In our study, SOVTE seemed to be effective to elicit voice quickly and promote vocal folds vibration without muscular effort in patients with functional aphonia.

참고자료

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