六包唱歌:关于前腹肌活动与生命能力百分比之间的关联
Calvin Peter Baker1, Anna Miles2, Jacqueline Allen3
1Swallowing and Voice Research Laboratory, Speech Science, School of Psychology, University of Auckland, Auckland, New Zealand; School of Music, University of Auckland, Auckland, New Zealand.
Journal of voice : official journal of the Voice Foundation
|April 18, 2025
概括
在歌手中,前腹肌 (AAM) 的激活主要与肺体积有关,而不是直接与下压力或声音水平有关. 在发音过程中增加AAM收缩似乎不需要实现目标语音输出.
科学领域:
- 声乐教学和言语科学 语音教学和言语科学
- 呼吸机械学和生物机械学
- 应用生理学应用生理学
背景情况:
- 呼吸管理在唱歌和语音障碍治疗中至关重要.
- 一个常见的假设将前腹肌 (AAM) 激活与子球压力 (PSub) 和声压水平 (SPL) 线性地联系起来.
- 本研究调查了这种假设关系的有效性.
研究的目的:
- 为了检查前腹肌 (AAM) 激活,下压力 (PSub) 和健康歌手的声音压力水平 (SPL) 之间的关系.
- 挑战AAM,PSub和SPL之间直接线性相关性的传统原则.
主要方法:
- 采用了同时进行的表面电肌图 (sEMG),空气动力学和声学测量.
- 21名健康的成年歌手执行了重要能力任务和辅音-母音重复.
- 在三个SPL目标中,以恒定的基本频率控制语音.
主要成果:
- 随着%的生命能力 (%VC) 下降到40%以下,AAM激活显著增加.
- 在受控发音过程中,较高的%sEMG值与增加的SPL目标相关.
- 令人惊的是,%sEMG与PSub或SPL的关联较弱;最大AAM收缩没有显著改变声输出.
结论:
- 在健康的歌手中,AAM激活主要与降低%VC有关,而不是直接与PSub或SPL有关.
- 在启发储备内最大的AAM收缩似乎对音声不必要.
- 这些发现为呼吸 - 声声动态提供了新的见解,为基于证据的语音教学和治疗提供了信息.
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