Sapir Shimon, Spielman Jennifer L, Ramig Lorraine O, Story Brad H, Fox Cynthia
Department of Communication Sciences and Disorders, Faculty of Social Welfare and Health Sciences, University of Haifa, Mount Carmel, Haifa 39105, Israel.
J Speech Lang Hear Res. 2007 Aug;50(4):899-912. doi: 10.1044/1092-4388(2007/064).
To evaluate the effects of intensive voice treatment targeting vocal loudness (the Lee Silverman Voice Treatment [LSVT]) on vowel articulation in dysarthric individuals with idiopathic Parkinson's disease (PD).
A group of individuals with PD receiving LSVT (n = 14) was compared to a group of individuals with PD not receiving LSVT (n = 15) and a group of age-matched healthy individuals (n = 14) on the variables vocal sound pressure level (VocSPL); various measures of the first (F1) and second (F2) formants of the vowels /i/, /u/, and /a/; vowel triangle area; and perceptual vowel ratings. The vowels were extracted from the words key, stew, and Bobby embedded in phrases. Perceptual vowel rating was performed by trained raters using a visual analog scale.
Only VocSPL, F2 of the vowel /u/ (F2u), and the ratio F2i/F2u significantly differed between patients and healthy individuals pretreatment. These variables, along with perceptual vowel ratings, significantly changed (improved) in the group receiving LSVT only.
These results, along with previous findings, add further support to the generalized therapeutic impact of intensive voice treatment on orofacial functions (speech, swallowing, facial expression) and respiratory and laryngeal functions in individuals with PD.
评估针对嗓音响度的强化嗓音治疗（李·西尔弗曼嗓音治疗[LSVT]）对患有特发性帕金森病（PD）的构音障碍患者元音清晰度的影响。
将一组接受LSVT治疗的PD患者（n = 14）与一组未接受LSVT治疗的PD患者（n = 15）以及一组年龄匹配的健康个体（n = 14）在以下变量上进行比较：嗓音声压级（VocSPL）；元音/i/、/u/和/a/的第一共振峰（F1）和第二共振峰（F2）的各种测量值；元音三角面积；以及元音感知评分。这些元音从嵌入短语中的单词“key”、“stew”和“Bobby”中提取。由经过培训的评分者使用视觉模拟量表进行元音感知评分。
在治疗前，患者与健康个体之间仅在VocSPL、元音/u/的F2（F2u）以及F2i/F2u比值上存在显著差异。这些变量以及元音感知评分仅在接受LSVT治疗的组中发生了显著变化（改善）。
这些结果以及先前的研究结果进一步支持了强化嗓音治疗对PD患者口面部功能（言语、吞咽、面部表情）以及呼吸和喉部功能具有广泛治疗作用的观点。
