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

다국어 초록 (Multilingual Abstract)

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.

참고문헌 (Reference)

1 김지성, "후두마사지와 반폐쇄성도훈련이 과기능적 음성장애 환자의 음성개선에 미치는 효과" 한국언어청각임상학회 22 (22): 806-817, 2017

2 최성희, "한국 정상 화자의 캡스트럼과 스펙트럼 측정치의 성별과 발화 과제 효과" 한국청각언어재활학회 12 (12): 157-163, 2016

3 임혜진, "연축성 발성장애 환자의 Lax Vox 음성치료 효과" 한국음성학회 8 (8): 57-63, 2016

4 Titze IR, "Voice Training and Therapy With a Semi-Occluded Vocal Tract : Rationale and Scientific Underpinnings" 49 (49): 448-459, 2006

5 Titze IR, "Theory of glottal airflow and sourcefilter interaction in speaking and singing" 90 (90): 641-648, 2004

6 Simberg S, "The resonance tube method in voice therapy : description and practical implementations" 32 (32): 165-170, 2007

7 Carson CP, "The effect of noise on computer-aided measures of voice : a comparison of cspeechsp and the multi-dimensional voice program software using the CSL 4300B Module and Multi-Speech for Windows" 17 (17): 12-20, 2003

8 Yoon YS., "The Laryngology, phoniatrics and logopedics" Ilchokak 129-, 2012

9 Choi SH, "Semi-occluded vocal tract exercise accent method, straw phonation, Lax Vox" 4 : 11-19, 2017

10 Jin SM, "Pathophysiology of Functional Dysphonia" 25 (25): 75-78, 2014

11 Maniecka-Aleksandrowicz B, "Management and therapy in functional aphonia : analysis of 500 cases" 60 (60): 191-197, 2006

12 Sihvo M, "Lax vox voice therapy technique"

13 Fadel CBX, "Immediate effects of the semi-occluded vocal tract exercise with LaxVox® tube in singers" 28 (28): 618-624, 2016

14 Chae HR, "Effects of Lax Vox Voice Therapy on respiration and phonation in patients with Parkinson’s disease" Daegu Catholic Univ 2019

15 Stathopoulos ET, "Developmental changes in laryngeal and respiratory function with variations in sound pressure level" 40 (40): 595-614, 1997

16 Titze IR, "Comparison of F0 extraction methods for highprecision voice perturbation measurements" 36 (36): 1120-1133, 1993

17 Monday LA, "Clinical evaluation of functional dysphonia" 12 (12): 307-310, 1983

18 Suh WJ, "Clinical Characteristics of Functional Dysphonia" 17 (17): 127-132, 2006

19 Heman-Ackah YD, "Cepstral peak prominence : a more reliable Measure of Dysphonia" 112 (112): 324-333, 2003

20 Guzmán M, "Air pressure and contact quotient measures during different semioccluded postures in subjects with different voice conditions" 30 (30): 759e1-759e10, 2016

21 Berry DA, "A quantitative output-cost ratio in voice production" 44 (44): 29-37, 2001