Santos Sabrina S, Christmann Mara K, Cielo Carla A
Departamento de Fonoaudiologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
Departamento de Fonoaudiologia, Universidade do Vale do Itajaí (UNIVALI), Itajaí, SC, Brazil.
J Voice. 2023 Oct 12. doi: 10.1016/j.jvoice.2023.08.023.
Verify the results from intensive short-term vocal therapy using the Finger Kazoo technique about the spectrographic vocal measurements of teachers.
Controlled and randomized trial. Spectrographic vocal assessment was performed by judges before and after intensive short-term vocal therapy with Finger Kazoo. Sample was composed of 41 female teachers. There were two study groups (with vocal nodules and without structural affection of the vocal folds) and the respective control groups. For the statistical analysis of the data, nonparametric tests were used (Mann-Whitney test and Wilcoxon test).
After intensive short-term vocal therapy with Finger Kazoo, improvement in voice spectral parameters, such as improvement in tracing (color intensity and regularity), greater definition of formants and harmonics, increased replacement of harmonics by noise, and a greater number of harmonics, mainly in the group without structural affection of the vocal folds.
There was an improvement in the spectrographic vocal parameters, showing greater stability, quality, and projection of the emission, especially in female teachers without structural affection of the vocal folds.
运用手指卡祖笛技术对教师进行密集短期嗓音治疗，验证其在嗓音频谱测量方面的效果。
对照随机试验。由评委在使用手指卡祖笛进行密集短期嗓音治疗前后，对嗓音进行频谱评估。样本包括41名女教师。设有两个研究组（有声带小结组和声带无结构病变组）及各自的对照组。数据统计分析采用非参数检验（曼-惠特尼检验和威尔科克森检验）。
使用手指卡祖笛进行密集短期嗓音治疗后，嗓音频谱参数有所改善，如描记改善（颜色强度和规律性）、共振峰和谐波清晰度提高、谐波被噪声替代增加以及谐波数量增多，主要体现在声带无结构病变组。
嗓音频谱参数有所改善，表明发声的稳定性、质量和投射能力增强，尤其在声带无结构病变的女教师中。
