Vocal fold vibration amplitude, open quotient, speed quotient and their variability along glottal length: Kymographic data from normal subjects
Vocal fold vibration amplitude, open quotient, speed quotient and their variability along glottal length: Kymographic data from normal subjects
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DOI：
10.3109/14015439.2012.731083
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发表时间：
2013-12-01
影响因子：
1.1
通讯作者：
Doellinger, Michael
中科院分区：
文献类型：
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作者：
Lohscheller, Joerg;Svec, Jan G.;Doellinger, Michael
对健康声带振动特征的定量认识为客观评价声带振动提供了基础。本研究应用高速电视喉镜对30名男性和30名女性健康人的声门相对振动幅值、开放频率和速度频率沿沿着的变化进行了分析。在雌性和雄性中，最大振幅分别为可见声门长度的41.1% +/- 10.8%和46.5% +/- 18.0%。男女的平均开放性肌力由后向前逐渐减小，而速度性肌力无系统性变化。所报道的正常值可用于区分正常和异常振动在临床实践中，旨在定量诊断功能性嗓音障碍。
Quantitative knowledge about healthy vocal fold vibration characteristics provides the basis for an objective assessment of vocal fold vibrations. In this study, using high-speed videolaryngoscopy the alterations of the relative vibration amplitudes, open quotients, and speed quotients were analyzed along the glottal length in 30 male and 30 female healthy subjects. The maximum vibration amplitude was identified at 41.1% +/- 10.8% and 46.5% +/- 18.0% of the visible glottal length in females and males, respectively. The average open quotients decreased in females and males from posterior to anterior, while the speed quotients did not change systematically. The reported normative values can be used to distinguish normal and abnormal vibrations in clinical practice when aiming at quantitative diagnosis of functional voice disorders.