Manjunatha Usha, Bhat Jayashree S, Radish Kumar B, Bajaj Gagan, Shruthi Poovitha, Suresh Nayak Priyanka, Rasheeka Saniya Mariam
Department of Audiology and Speech Language Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India.
Centre for Integrative Medicine and Research (Yoga), Manipal Academy of Higher Education, Manipal, India.
Evid Based Complement Alternat Med. 2018 Aug 6;2018:4176803. doi: 10.1155/2018/4176803. eCollection 2018.
Pranayama is known for improving various health conditions. The present study is aimed at investigating the effects of bhramari pranayama on aerodynamic and acoustic parameters of voice in healthy individuals.
This is a pretest-posttest design study.
A total of 24 participants in the age range of 20 to 25 years completed the bhramari pranayama regimen for 30 sessions. Aerodynamic and acoustic assessments were done before and after pranayama sessions. Maximum phonation duration, pitch, loudness, subglottal pressure, glottal airflow, laryngeal resistance and conductance along with acoustical parameters such as average F0, jitter, and shimmer, soft phonation index, noise to harmonic ratio, cepstral peak prominence, and smoothened cepstral peak prominence were analysed.
The results revealed significant improvement in the maximum phonation duration, glottal airflow and pressure, average fundamental frequency, and cepstral peak prominence after practice suggesting that it has an effect on voice parameters.
Bhramari pranayama is effective in improving the acoustic and aerodynamic parameters of voice. The same needs to be investigated in hyper- and hypofunctional voice disorders in the future studies.
调息法以改善各种健康状况而闻名。本研究旨在调查蜂鸣式调息法对健康个体声音的空气动力学和声学参数的影响。
这是一项前后测设计研究。
共有24名年龄在20至25岁之间的参与者完成了30节蜂鸣式调息法训练课程。在调息法课程前后进行了空气动力学和声学评估。分析了最大发声时长、音高、响度、声门下压力、声门气流、喉部阻力和传导率，以及诸如平均基频、抖动、闪烁、软起音指数、噪声谐波比、谐波峰值突出度和平滑谐波峰值突出度等声学参数。
结果显示，练习后最大发声时长、声门气流和压力、平均基频以及谐波峰值突出度有显著改善，表明其对声音参数有影响。
蜂鸣式调息法可有效改善声音的声学和空气动力学参数。在未来的研究中，需要对声音功能亢进和减退性障碍进行同样的调查。
