Aerodynamic and acoustic voice measurements of patients with vocal nodules: Variation in baseline and changes across voice therapy
Aerodynamic and acoustic voice measurements of patients with vocal nodules: Variation in baseline and changes across voice therapy
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DOI：
10.1067/s0892-1997(03)00076-6
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发表时间：
2003-09-01
期刊：
影响因子：
2.2
通讯作者：
Hillman, RE
中科院分区：
文献类型：
--
作者：
Holmberg, EB;Doyle, P;Hillman, RE
一个重要的临床问题涉及当前声音治疗方法在治疗声音障碍（例如声带小结）方面的功效。许多研究的重点是寻找可靠的方法来记录治疗结果。在第二项针对 10 名声带小结患者的治疗研究中，这些患者参加了基于行为的发声治疗计划，使用了 11 种空气动力学（经声门气压和声门波形）和声学（spl、f0 和频谱斜率）测量方法。进行了 3 次治疗前基线评估，随后在五个治疗阶段中的每一个阶段进行一次评估。对两种类型的语音材料进行了测量：在两种响度条件下重复的/pae/音节串和持续的/ae/发声：舒适的响度和响亮的声音。使用 z 分数对数据进行标准化，该分数基于 22 名正常受试者的数据。结果表明，空气动力学测量比声谱测量在更高程度上反映了声乐病理学的存在，并且它们应该在比较结节和正常发声的研究中有用。治疗前基线记录的所有测量值均发现个体间的巨大差异，这导致基线和治疗数据之间没有显着差异。
An important clinical issue concerns the efficacy of current voice therapy approaches in treating voice disorders, such as vocal nodules. Much research focuses on finding reliable methods for documentation of treatment results. In this second treatment study of ten patients with vocal nodules, who participated in a behaviorally based voice therapy program, 11 aerodynamic (transglottal air pressure and glottal waveform) and acoustic (spl, f0, and spectrum slope) measures were used. Three pretherapy baseline assessments were carried out, followed by one assessment after each of five therapy phases. Measurements were made of two types of speech materials: Strings of repeated /pae/ syllables and sustained /ae/ phonations in two loudness conditions: comfortable loudness and loud voice. The data were normalized using z-scores, which were based on data from 22 normal subjects. The results showed that the aerodynamic measures reflected the presence of vocal pathology to a higher degree than did the acoustic spectral measures, and they should be useful in studies comparing nodule and normal voice production. Large individual session-to-session variation was found for all measures across pretherapy baseline recordings, which contributed to nonsignificant differences between baseline and therapy data.