National Center for Voice and Speech, Denver, CO, USA.
J Speech Lang Hear Res. 2012 Jun;55(3):930-45. doi: 10.1044/1092-4388(2011/10-0235). Epub 2012 Jan 9.
The purpose of this study was to examine the effects of an intensive voice treatment (Lee Silverman Voice Treatment, commonly known as LSVT LOUD) for children with spastic cerebral palsy (CP) and dysarthria.
A nonconcurrent multiple baseline single-subject design with replication across 5 children with spastic CP was used. Auditory-perceptual analysis of speech, acoustic measures of vocal functioning, and perceptual ratings by parents of participants were obtained at baseline, posttreatment, and 6-week follow-up recording sessions.
Listeners consistently preferred the speech samples taken immediately posttreatment over those taken during the baseline phase for most perceptual characteristics rated in this study. Changes in acoustic measures of vocal functioning were not consistent across participants and occurred more frequently for maximum performance tasks as opposed to speech. Although parents of the treated participants reported an improved perception of vocal loudness immediately following treatment, maintenance of changes at 6-week follow-up varied across the participants. No changes were observed in the 5th participant, who did not receive treatment.
These findings provide some preliminary observations that the children with spastic CP in this study not only tolerated intensive voice treatment but also showed improvement on select aspects of vocal functioning. These outcomes warrant further research through Phase 2 treatment studies.
本研究旨在探讨强化嗓音治疗（Lee Silverman 嗓音治疗，通常称为 LSVT LOUD）对痉挛型脑瘫（CP）伴构音障碍儿童的疗效。
采用 5 例痉挛型 CP 儿童的非同期多个基线单被试设计，并在治疗后和 6 周随访记录时进行重复评估。在基线期、治疗后和 6 周随访时，分别进行言语听觉感知分析、嗓音功能声学测量和参与者家长的感知评定。
对于本研究中评价的大多数感知特征，听者一致更喜欢治疗后即刻的言语样本，而不是基线期的言语样本。声学嗓音功能测量的变化在参与者之间并不一致，更多地发生在最大表现任务中，而不是言语中。尽管接受治疗的参与者的家长报告治疗后嗓音响度感知有改善，但 6 周随访时的变化在参与者之间存在差异。未接受治疗的第 5 名参与者未观察到变化。
这些发现提供了一些初步观察结果，表明本研究中的痉挛型 CP 儿童不仅能耐受强化嗓音治疗，而且在某些嗓音功能方面也显示出改善。这些结果需要通过 2 期治疗研究进一步研究。
