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논문 기본 정보

자료유형
학술저널
저자정보
김한수 (이화여자대학교 의과대학 이비인후과학교실) 전용선 (이화여자대학교 의과대학 이비인후과학교실) 정성민 (이화여자대학교 의과대학 이비인후과학교실) 조근경 (이화여자대학교 의과대학 이비인후과학교실) 박은희 (이화여자대학교 의과대학 이비인후과학교실)
저널정보
대한후두음성언어의학회 대한후두음성언어의학회지 대한후두음성언어의학회지 제16권 제1호
발행연도
2005.1
수록면
28 - 32 (5page)

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초록· 키워드

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Background and Objectives : The most important two factors of the voice production are the respiratory function which is the power source of voice and the glottic closure that transform the air flow into sound signals. The purpose of this study was to investigate the differences between trained singers and untrained controls under varying intensity at a constant vocal pitch by simulataneous using the airway interruption method and electroglottography(EGG). Materials and Methods : Under two different intensity condition at a constant vocal pitch(/G/), 20(Male 10, Female 10) trained singers were studied. Mean flow rate(MFR), subglottic pressure(Psub) and intensity were measured with aerodynamic test using the Phonatory function analyzer. Closed quotients(CQ), jitter and shimmer were also investigated by electroglottography using Lx speech studio. These data were compared with that of normal controls. Results : MFR and Psub were increased on high intensity condition in all subject groups but there was no statistically significance. Statistically significant increasing of CQ. were observed in male trained singers on high intensity condition (untrained male : 51.31${\pm}$3.70%, trained male :55.52${\pm}$6.07%, p=.039). Shimmer percent, one of the phonatory stability parameters, was also decreased statistically in all subject groups(p<.001). Conclusion : The trained singers' phonation was more efficient than untrained singers. The result means that the trained singers can increase the loudness with little changing of mean flow rate, subglottic pressure but more increasing of glottic closed quotients.

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