보컬 워밍업 프로그램이 성문틈을 보이는 과기능적 음성장애 환자의 음성개선에 미치는 효과에 관한 예비연구 = A Preliminary Study on the Effect of a Vocal Warm-up Program on Voice Improvement in Patients With Hyperfunctional Voice Disorders With Glottal Gap

다국어 초록 (Multilingual Abstract)

Purpose: The purpose of this study was to investigate the effect of a vocal warm-up program on voice improvement in patients with hyperfunctional voice disorders with glottal gap.
Methods: A total of 12 sessions were performed twice every week for treatment. The preliminary evaluation was conducted three times, the intermediate evaluation was conducted once every three treatments, and the post-evaluation was conducted three times a week after the treatment was completed. Acoustic evaluation (jitter, shimmer, noise-to-harmonics ratio [NHR], F0, cepstral peak prominence [CPP], cepstral spectral index of dysphonia [CSID], pitch range), aerodynamic evaluation (expiratory volume [FVC], mean expiratory airflow [MEAF], phonation time [PHOT], mean peak air pressure [MPAP]), and subjective evaluations (voice handicap index [VHI], grade, roughness, breathiness, asthenia, strain [GRBAS]) were conducted. Subjective evaluations were conducted only before and after treatment.
Results: First, all three subjects showed improvements in jitter, shimmer, NHR, CPP, CSID, and pitch range values as a result of acoustic evaluation. Second, all three subjects showed improvements in the values of FVC, MEAF, and PHOT as a result of aerodynamic evaluation. Third, all three subjects showed improvements in VHI, which is a subjective evaluation. Fourth, the results of the GRBAS Scale, also showed improvement.
Conclusions: A vocal warm-up program using a voice scale was effective in enhancing voice production for patients with hyperfunctional voice disorders with glottal gap.