Scanferla Willian Hote, Oliveira Catarina, Lousada Marisa Lobo, Teixeira Letícia Caldas
Speech-Language Therapy Science - School of Medicine, Federal University of Minas Gerais - UFMG, Belo Horizonte, Brazil.
Linguistics - School of Health Sciences (ESSUA)/Institute of Electronics and Informatics Engineering of Aveiro (IEETA), University of Aveiro, Aveiro, Portugal.
J Voice. 2025 May;39(3):842.e25-842.e33. doi: 10.1016/j.jvoice.2022.12.007. Epub 2023 Jan 21.
To evaluate the usability and acceptability of "Health and Voice" for the promotion of vocal health, and to analyze the same with sociodemographic data, work data, self-knowledge data on vocal care, voice disadvantage, and vocal fatigue symptoms in elementary school teachers.
A cross-sectional observational study, with a sample of 277 elementary school teachers from a Brazilian capital. Teachers were invited to access, interact and evaluate the mHealth: "Health and Voice". The evaluation instruments were the questionnaire with information on socio-demographic and work data, the System Usability Scale (SUS), the questionnaire with questions about acceptability, the Voice Handicap Index Protocol (VHI-10), and the Vocal Fatigue Index Protocol (VFI). Descriptive and association analyses were performed by the Chi-square, Fisher exact, Mann-Whitney, and Wilcoxon tests (P ≤ 0.05) RESULTS: the mean SUS score was 81.9 points; the mean of the acceptability questions was 17.24; the VHI-10 was 6.96 points; the VFI was 21.11 points. Most participants rated the acceptability of mHealth as high. There was an association between acceptability and working in two shifts (P = 0.019); between acceptability and usability (P < 0.001); and between usability and self-perception of knowledge about voice care after using mHealth (P = 0.000). The activity perceived as most important was guidance on voice care.
"Health and Voice" is a vocal guidance tool for teachers that promotes vocal health. It has high usability and acceptability by elementary school teachers. Self-reported knowledge about vocal care increases after its use and those who evaluate the technology with high acceptability are 3.6 times more likely to also classify it with high usability.
评估“健康与嗓音”对促进嗓音健康的可用性和可接受性，并结合社会人口统计学数据、工作数据、嗓音护理的自我认知数据、嗓音缺陷及小学教师的嗓音疲劳症状进行分析。
一项横断面观察性研究，样本来自巴西一座首府城市的277名小学教师。邀请教师访问、使用并评估移动健康应用程序“健康与嗓音”。评估工具包括包含社会人口统计学和工作数据信息的问卷、系统可用性量表（SUS）、关于可接受性的问卷、嗓音障碍指数协议（VHI - 10）以及嗓音疲劳指数协议（VFI）。通过卡方检验、费舍尔精确检验、曼 - 惠特尼检验和威尔科克森检验进行描述性和关联性分析（P≤0.05）。结果：SUS平均得分为81.9分；可接受性问题的平均得分为17.24分；VHI - 10为6.96分；VFI为21.11分。大多数参与者对移动健康应用程序的可接受性评价较高。可接受性与两班倒工作之间存在关联（P = 0.019）；可接受性与可用性之间存在关联（P < 0.001）；可用性与使用移动健康应用程序后对嗓音护理知识的自我认知之间存在关联（P = 0.000）。被认为最重要的活动是嗓音护理指导。
“健康与嗓音”是一种为教师提供的促进嗓音健康的嗓音指导工具。它具有较高的可用性和可接受性，小学教师使用后自我报告的嗓音护理知识有所增加，且对该技术评价具有高可接受性的人将其评为高可用性的可能性高出3.6倍。
