Bane Maria, Angadi Vrushali, Andreatta Richard, Stemple Joseph
University of Kentucky Department of Communication Sciences and Disorders, 900 South Limestone, Lexington, Kentucky 40536.
University of Kentucky Department of Communication Sciences and Disorders, 900 South Limestone, Lexington, Kentucky 40536.
J Voice. 2023 Nov 23. doi: 10.1016/j.jvoice.2023.11.002.
OBJECTIVES/HYPOTHESIS: To determine the effect of clinical expertise on efficacy of Vocal Function Exercises (VFEs) as measured by change in percent of maximum phonation time goal attained. The hypothesis was that clinical expertise would result in greater increases in percent of maximum phonation time goal attained.
Randomized controlled trial.
A convenience sample of 19 individuals with typical voice was recruited in a university academic clinic setting. All participants completed baseline assessment and 17 completed all study procedures. Participants were randomized to receive VFEs from an expert voice clinician with more than 40 years' experience (expert group (EG)) or from a master's student in Communication Sciences and Disorders trained in VFEs (novice group (NG)). The primary outcome measure was change in percent of maximum phonation time goal attained during VFE tasks 1 and 4.
Mean change scores for maximum phonation time were 27.71 (P = 0.001) and 25.31 (P = 0.003) for EG and NG, respectively. Both groups improved significantly on the primary outcome measure, but the difference between groups was not statistically significant (P = 0.759). A Hedges'-g effect size of -0.14 [-1.10, 0.81] was obtained comparing EG and NG groups, indicating a small negative effect of limited clinical expertise on VFE outcomes in individuals with typical voice.
Speech-language pathologists with varied levels of expertise are capable of efficaciously administering VFEs in individuals with typical voice.
目的/假设：通过达到最大发声时间目标百分比的变化来确定临床专业知识对嗓音功能锻炼（VFE）疗效的影响。假设是临床专业知识将导致达到最大发声时间目标百分比有更大的提高。
随机对照试验。
在大学学术诊所环境中招募了19名具有典型嗓音的个体作为便利样本。所有参与者均完成了基线评估，17名完成了所有研究程序。参与者被随机分配接受来自一位有40多年经验的嗓音专家临床医生（专家组（EG））或接受过VFE训练的通信科学与障碍专业硕士研究生（新手组（NG））的VFE。主要结局指标是在VFE任务1和4期间达到最大发声时间目标百分比的变化。
专家组和新手组的最大发声时间平均变化得分分别为27.71（P = 0.001）和25.31（P = 0.003）。两组在主要结局指标上均有显著改善，但组间差异无统计学意义（P = 0.759）。比较专家组和新手组得到的Hedges'g效应量为-0.14[-1.10, 0.81]，表明有限的临床专业知识对具有典型嗓音个体的VFE结果有小的负面影响。
不同专业水平的言语语言病理学家能够有效地对具有典型嗓音的个体实施VFE。
