Franco Débora, Martins Fernando, Andrea Mário, Fragoso Isabel, Carrão Luís, Teles Júlia
Escola Superior de Saúde, Instituto Politécnico de Leiria, Leiria, Portugal; Centro de Linguística, Universidade de Lisboa, Lisboa, Portugal.
Centro de Linguística, Universidade de Lisboa, Lisboa, Portugal; Faculdade de Letras, Universidade de Lisboa, Lisboa, Portugal.
J Voice. 2014 Jul;28(4):523.e1-8. doi: 10.1016/j.jvoice.2014.01.002. Epub 2014 May 16.
Clinical research in the field of voice disorders, in particular functional dysphonia, has suggested abnormal laryngeal posture due to muscle adaptive changes, although specific evidence regarding body posture has been lacking. The aim of our study was to verify if there were significant differences in sagittal spine alignment between normal (41 subjects) and dysphonic speakers (33 subjects).
Cross-sectional study.
Seventy-four adults, 35 males and 39 females, were submitted to sagittal plane photographs so that spine alignment could be analyzed through the Digimizer-MedCalc Software Ltd program. Perceptual and acoustic evaluation and nasoendoscopy were used for dysphonic judgments: normal and dysphonic speakers.
For thoracic length curvature (TL) and for the kyphosis index (KI), a significant effect of dysphonia was observed with mean TL and KI significantly higher for the dysphonic speakers than for the normal speakers. Concerning the TL variable, a significant effect of sex was found, in which the mean of the TL was higher for males than females. The interaction between dysphonia and sex did not have a significant effect on TL and KI variables. For the lumbar length curvature variable, a significant main effect of sex was demonstrated; there was no significant main effect of dysphonia or significant sex×dysphonia interaction.
Findings indicated significant differences in some sagittal spine posture measures between normal and dysphonic speakers. Postural measures can add useful information to voice assessment protocols and should be taken into account when considering particular treatment strategies.
嗓音障碍领域的临床研究，尤其是功能性发声障碍，提示由于肌肉适应性变化导致喉部姿势异常，尽管缺乏关于身体姿势的具体证据。我们研究的目的是验证正常受试者（41名）和发声障碍受试者（33名）在矢状面脊柱排列上是否存在显著差异。
横断面研究。
74名成年人，35名男性和39名女性，拍摄矢状面照片，以便通过Digimizer-MedCalc软件有限公司程序分析脊柱排列。使用感知和声学评估以及鼻内镜检查进行发声障碍判断：正常和发声障碍受试者。
对于胸段长度弯曲（TL）和后凸指数（KI），观察到发声障碍有显著影响，发声障碍受试者的平均TL和KI显著高于正常受试者。关于TL变量，发现性别有显著影响，男性的TL平均值高于女性。发声障碍与性别的交互作用对TL和KI变量没有显著影响。对于腰段长度弯曲变量，证明了性别的显著主效应；发声障碍没有显著主效应，性别×发声障碍也没有显著交互作用。
研究结果表明正常和发声障碍受试者在一些矢状面脊柱姿势测量上存在显著差异。姿势测量可为嗓音评估方案增添有用信息，在考虑特定治疗策略时应予以考虑。
