Normal Swallowing Acoustics Across Age, Gender, Bolus Viscosity, and Bolus Volume
Normal Swallowing Acoustics Across Age, Gender, Bolus Viscosity, and Bolus Volume
复制标题
DOI：
10.1007/s00455-010-9323-z
复制
发表时间：
2011-12-01
期刊：
影响因子：
2.6
通讯作者：
Stierwalt, Julie A. G.
中科院分区：
文献类型：
--
作者：
Youmans, Scott R.;Stierwalt, Julie A. G.
由于正常吞咽声音和吞咽困难声音之间的明显差异，颈部听诊已被提议作为主观临床吞咽检查的增强程序。然而，关于颈部听诊和吞咽声学的研究并不完整，因为正常吞咽声音与吞咽困难声音之间的差异尚未完全理解或量化。 96 名健康成年人的吞咽情况被记录下来，这些成年人按性别平衡，分为年轻、中年和老年组，同时摄入了不同粘度和体积的几颗药丸。然后分析音频信号以确定它们的时间和声学特征。结果表明，咽部吞咽持续时间随着年龄、推注粘度和推注体积的增加而增加。此外，在我们的两项分析之一中发现，随着年龄的增加，达到峰值强度的持续时间也会增加，以及一些粘性较大的丸剂与粘性较低的丸剂的情况也是如此。男性和老年人比女性和年轻人产生更高的峰值强度和峰值频率。所生产的稀液体的强度比蜂蜜或粘稠的丸剂更强，并且比机械软固体的频率更高。体积越大，峰值频率值越大。一些声学测量似乎比其他测量更有用，包括声学吞咽信号的持续时间和受试者体内的峰值强度变量。我们注意到吞咽声学的差异更多地与粘度的变化而不是体积的变化有关。最后，参与者内部的观察比参与者之间的观察更有用。
Cervical auscultation has been proposed as an augmentative procedure for the subjective clinical swallowing examination due to the tangible differences between normal and dysphagic swallowing sounds. However, the research is incomplete regarding cervical auscultation and swallowing acoustics in that the differences between the sounds of normal versus dysphagic swallowing have yet to be fully understood or quantified. The swallows of 96 reportedly healthy adults, balanced for gender and divided into younger, middle, and older age groups, were audio-recorded while ingesting several boluses of varying viscosity and volume. The audio signals were then analyzed to determine their temporal and acoustic characteristics. Results indicated increasing pharyngeal swallowing duration with increasing age, bolus viscosity, and bolus volume. In addition, an increased duration to peak intensity with increasing age was found in one of our two analyses, as well as with some of the more viscous versus less viscous boluses. Men and older persons produced higher peak intensities and peak frequencies than women and younger persons. Thin liquids were produced with more intensity than honey or more viscous boluses, and with greater frequency than mechanical soft solids. Larger volumes resulted in greater peak frequency values. Some of the acoustic measurements appear to be more useful than others, including the duration of the acoustic swallowing signal and the within-subjects peak intensity variable. We noted that differences in swallowing acoustics were more related to changes in viscosity rather than volume. Finally, within-participant observations were more useful than between-participant observations.