Voz do professor: sintomas de desconforto do trato vocal, intensidade vocal e ruído em sala de aula

Self-assessment of teachers with normal larynges and vocal and osteomuscular complaints

INTRODUCTION

Teachers face vocal problems related to long periods of speech and increased sound pressure, as well as environmental noise, inadequate posture and tension of the cervical muscles.

OBJECTIVE

To verify the results of self-assessment of teachers with normal larynges and vocal and musculoskeletal complaints, and compare them with the reference values.

METHODS

Fifty-seven teachers, aged between 21 and 60 years (average 40.14 years) participated in the study. Anamnesis, otorhinolaryngological examination, hearing screening and self-assessment protocols were performed.

RESULTS

In the Nordic musculoskeletal questionnaire, the majority of teachers had discomfort in most parts of the body and in the situations evaluated; on the voice-related quality of life, the total and physical subscores were lower than the normative values while the emotional subscore was higher; regarding voice symptoms scale and vocal tract discomfort scale, the scores were higher than the normative values; in the hospital anxiety and depression scale, there was alteration in the total score; in the Vocal Activity and Participation Profile, the effects on work and emotion were above the normative values; on the University of Rhode Island change assessment-voice and on the voice handicap index there were no significant differences.

CONCLUSION

Most of the teachers presented vocal, musculoskeletal, and emotional complaints on the self-assessment results, what suggests excessive voice use as well as overload on the body muscles, including the larynx and vocal tract, and that they presented emotional changes. These aspects had an impact on their quality of life, but they showed no action in coping with the condition.

Work-Related Vocal Challenges of Online Teaching: A Study of Female College Professors

BACKGROUND

College professors are at an elevated risk of developing voice disorders due to increased vocal demands associated with their working conditions, including high background noise levels, long reverberation times, prolonged voice use duration, and large class sizes. However, the impact of online classes on vocal health among college professors remains unclear.

OBJECTIVE

This longitudinal study aimed to characterize voice changes associated with online teaching among female Colombian college professors.

METHODS

Thirteen female college professors teaching online classes completed an online survey that included questions about voice functioning, working conditions, the Spanish translation of the Vocal Fatigue Index (VFI), and the Spanish translation of the Voice-Related Quality of Life. Instrumental measurements were also performed, including environmental background noise levels, hearing screening, and voice recordings before and after a synchronous online class.

RESULTS

This study found a decreased fundamental frequency in connected speech (reading) associated with the number of students per class, the number of classes per week, and background noise levels measured with a sound level meter. L1L0 was statistically smaller among experienced teachers with higher background noise levels compared with less-experienced colleagues in quieter classes. 1558kHz was statistically associated with the average number of students, whereas HNR was slightly higher for professors with more students and more classes per week.

CONCLUSION

The findings suggest that online teaching has important implications for voice production among participating teachers. This study highlights the importance of considering working conditions during online classes when designing workplace prevention programs for college professors.

Mapping of the characteristics in the CoDAS journal publications in the voice area: a scoping review

PURPOSE

To map and describe the characteristics present in the publications of the CoDAS journal in the voice segment.

RESEARCH STRATEGIES

The research was carried on the Scielo database using the descriptor voice.

SELECTION CRITERIA

CoDAS publications in the field of voice.

DATA ANALYSIS

Specific data collected according to delineation, summarized by descriptive analysis and analyzed in narrative format.

RESULTS

Studies published in 2019 and with cross-sectional delineation were more frequent. The most frequent result in the cross-sectional studies was the vocal self-assessment. Most intervention studies were of immediate single-session-only effect. The most frequent procedures in the validation studies were translation and transcultural adaptation.

CONCLUSION

There was a gradual increase in the number of publications of voice studies, though these had heterogeneous characteristics.

Effect of Pompage on Teachers Self-Assessment-Clinical Trial

OBJECTIVE

To verify the results of self-assessments of teachers with vocal and musculoskeletal complaints and with the normal larynx, after myofascial release using pompage.

METHODS

Double-blind, controlled, and randomized clinical trial including 28 teachers in the study group and 28 teachers in the control group, totaling 56 participants. Anamnesis, video laryngoscopy, hearing screening, clinical and photogrammetric postural assessment, pain threshold in cervical muscles, sound pressure and maximum phonation time measurements, and manovacuometry were performed. Protocols for vocal self-assessment, neck pain, anxiety and depression, and musculoskeletal pain were filled out. Pompage therapy consisted of a total of 24 sessions (8 weeks) of 40 minutes each, three times a week. Afterward, the groups were reassessed.

RESULTS

In the study group, there was a significant improvement in the results of the following instruments: Hospital Anxiety and Depression Scale, Vocal Tract Discomfort Scale, Voice Symptoms Scale, Vocal Activity and Participation Profile, Vocal Handicap Index, Voice-Related Quality of Life, and Nordic Musculoskeletal Questionnaire.

CONCLUSIONS

After myofascial release using pompage in teachers, there was an improvement in the self-assessed aspects regarding characteristics and quality of life related to the voice, social participation related to the voice, anxiety and depression, and musculoskeletal symptoms.

Effect of Pompage on Vocal and Respiratory Measurements from Female Teachers: A Randomized Clinical Trial

INTRODUCTION

Teachers stand out among occupational groups due to their contribution to modern societies, and their voice is the main form of interaction.

OBJECTIVE

The aim of the study was to verify the changes in vocal and respiratory measurements from teachers with vocal and musculoskeletal complaints and with normal larynx after applying a musculoskeletal manipulation protocol of myofascial release using pompage.

METHODS

Controlled and randomized clinical trial with 56 participants: 28 teachers in the study group and 28 teachers in the control group. Anamnesis, videolaryngoscopy, hearing screening, sound pressure and maximum phonation time measurements, and manovacuometry were performed. The musculoskeletal manipulation protocol of myofascial release using pompage consisted of a total of 24 sessions, 40 min for each session, three times a week, for 8 weeks.

RESULTS

There was a significant improvement in the maximum respiratory pressure in the study group after the intervention. The sound pressure level and the maximum phonation time did not change significantly.

DISCUSSION AND CONCLUSION

Musculoskeletal manipulation protocol of myofascial release using pompage had a direct effect on the respiratory measurements from female teachers, significantly increasing the maximum respiratory pressure but without affecting sound pressure level and the /a/ maximum phonation time.

The Usability and Acceptability of the mHealth "Health and Voice" for Promoting Teachers' Vocal Health

OBJECTIVE

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.

MATERIAL AND METHODS

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.

CONCLUSION

"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.

Vocal Tract Discomfort Symptoms in Elementary and High School Teachers

OBJECTIVES

The vocal tract discomfort scale is a self-rating seven-point Likert scale that quantifies frequency and severity of eight qualitative descriptors including burning, tight, dry, aching, tickling, sore, irritable, and lump in the throat, and ranges from 0 (never/none) to 6 (always/extreme; Mathieson et al. 2009). The objectives of the current study were to compare the vocal tract discomfort scale results between elementary school teachers and high school teachers and between male and female teachers using the Persian vocal tract discomfort scale. Also, teachers in different age ranges and with different experiences were compared regarding vocal tract discomfort symptoms.

METHODS

The researchers chose 20 elementary and high schools by simple random sampling in Khorramabad, Iran. The survey was given to available teachers of the selected schools. Considering the inclusion criteria, required sample size, and after excluding questionnaires that were not correctly answered, 120 were selected such that 30 were chosen for each subgroup. Subjects consisted of 60 elementary school teachers (30 females and 30 males) with the mean age of 40.92 years (standard deviation = 6.07) and 60 high school teachers (30 females and 30 males) with the mean age of 40.67 years (standard deviation = 6.00). SPSS 25 was used for analyzing the data.

RESULTS

Results indicated that the frequency and severity of the vocal tract discomfort in elementary school teachers were significantly higher than for the high school teachers with a medium to large effect size. Although the frequency and severity of the symptoms were higher in female compared with male teachers, those differences were not significantly different. Younger teachers had lower frequency and severity ratings of vocal tract discomfort symptoms than older teachers. Teaching experience was not an important factor in predicting vocal tract discomfort symptoms in teachers.

CONCLUSIONS

The results of this study suggest that there is higher frequency, greater severity, and higher percentages of vocal tract discomfort symptoms in elementary compared with high school teachers. In addition, although the mean frequency and severity of vocal tract discomfort symptoms were not significantly different between females and males, females reported higher percentages of the symptoms. Because each of the eight vocal tract symptoms was experienced at the time of testing by between 42% (tightness) and 68% (dryness) of the participants, it is suggested that an educational program regarding vocal tract discomfort may be helpful for this profession.

Vocal teacher production condition in differents functional situations

PURPOSE

to verify if teachers with less vocal use due to reduced workload have fewer complaints of vocal disorders and better environmental and organizational working conditions.

METHODS

46 teachers of both genders, with a mean age of 39.5 years old, and 15 years of career length participated in this study. The individuals were divided into group A, public school teachers with exclusive dedication to a single school and regulated workload; group B, public school teachers with elevated workload working in many schools. All subjects were submitted to the following instruments: Condition of Vocal Production-Teacher and the Screening Index for Voice Disorder.

RESULTS

group B teachers presented voice disorder (5.21; p=0.02) and greater complaints regarding acoustic conditions (p=0.04), temperature (p=0,04), humidity (p=0.01), lighting (p=0.001), cleanliness (p=0.01), and didactic materials (p<0.0001). Habits of screaming (p=0.02), speaking in an open place (p=0,02), and vocal orientations (p=0.01) also had a statistically significant difference.

CONCLUSION

Teachers working in elementary and high school belonging to the group of exclusive dedication to a single school, with reduced weekly classroom hours and less vocal exposure had fewer complaints of voice disorders, better environmental and organizational conditions, and reported screaming less at work.

Influence of the characteristics of home office work on self-perceived vocal fatigue during the COVID-19 pandemic

PURPOSE

To verify the influence of work characteristics and the occupational voice use on the self-perception of vocal fatigue symptoms in individuals working in the home office during the COVID-19 pandemic.

METHODS

This was a cross-sectional, observational, and descriptive study. The sample consisted of 206 individuals (123 women and 83 men), with an average age of 34 years, working exclusively in a home office mode due to the pandemic. Through an online form, all participants responded to the Vocal Fatigue Index (VFI) protocol and the questionnaire on the characterization of work and the occupational voice use during the pandemic, developed by the authors of this study. Multiple linear regression using the backward elimination technique was performed.

RESULTS

The variables the interlocutor does "not listen to me in home office work," "noise in the home office work environment," "the daily workload in home office," "vocal quality worsened in home office work," "increased vocal loudness in home office work" and "lack of training about voice use in home office work" are predictors of the dependent variable vocal fatigue symptoms.

CONCLUSION

The characteristics of work and occupational voice use influence the self-perception of vocal fatigue symptoms in individuals working in the home office mode during the COVID-19 pandemic.

Fatigue, effort and vocal discomfort in teachers after teaching activity

PURPOSE

Investigate vocal fatigue and its relationship with the sensation of phonatory effort and discomfort in the vocal tract of teachers after a week of activity.

METHODS

Cross-sectional, quantitative study, involving 40 teachers with complaints of vocal fatigue. Procedures performed at the beginning and end of the week, before the classes start were Vocal Fatigue Index, Borg Scale, Vocal Tract Discomfort Scale, and voice recording for perceptual analysis.

RESULTS

There were no changes in phonatory effort and in frequency and intensity of discomfort in vocal tract. In relation to the VFI, in the domains of fatigue and vocal limitation and physical discomfort associated with the voice, teachers started and ended the week with values compatible with dysphonia. In the vocal restriction domain, they started the week with values compatible with vocal healthy individuals and at the end of the week they had scores compatible with dysphonia. In recovery with vocal rest, the pre and post values were below the cut-off score, meaning less vocal recovery. The greater the sensation of vocal fatigue, the greater the perception of phonatory effort; more frequent is the sensation of tightness, dryness, sore, sensitive and irritated throat and more intense the sensations of discomfort in the vocal tract: tightness, dryness, itching, sensitive and irritated throat.

CONCLUSION

Teachers perceive an increase in vocal fatigue, without changes in phonatory effort and vocal tract discomfort after one week of class. The greater the perception of vocal fatigue, the greater the sensation of effort and phonatory discomfort.

Effectiveness of a Blended-Learning Intervention in Teachers' Vocal Health

OBJECTIVE

To verify the effectiveness of a blended-learning voice assistance program for elementary school teachers.

STUDY DESIGN

Nonrandomized and comparative interventional clinical trial.

METHODS

A total of 59 teachers participated; 33 of the 59 teachers participated in face-to-face learning (control group-CG), and 26 of the 59 teachers participated in blended learning (experimental group-EG). The Voice Assistance Program included the following for both groups: preintervention assessment, four voice workshops and postintervention assessment. The instruments used were the Vocal Production Condition - Teacher (VPC-T) questionnaire, the Screening Index for Voice Disorder (SIVD), the Vocal Health and Hygiene Questionnaire (VHHQ) and the Voice-Related Quality of Life (V-RQOL) measure. Additionally, voice samples were collected for auditory-perceptual analysis of voice quality. The workshops included theoretical and practical content for both groups. All the workshops for the CG were conducted face-to-face, while the workshops for the EG consisted of two online workshops and two face-to-face workshops. A descriptive analysis of the data was performed, and paired Wilcoxon and Mann-Whitney tests were performed using R software, with a significance level of 0.05.

RESULTS

Both groups showed improved acquisition of knowledge regarding vocal health and improved voice quality, but the improvement was greater for the EG. There was a significant decrease in the risk of voice disorder in the EG. Only the CG showed significant improvement in voice-related quality of life.

CONCLUSION

The voice assistance program with blended learning is effective for increasing knowledge about vocal health, reducing the risk of voice disorder and improving the voice quality of teachers.

Quality of Life and Acoustic Comfort in Educational Environments of Curitiba, Brazil

BACKGROUND

It is believed that poor classroom acoustics leads to lower levels of student learning and exposes teachers vocal folds to greater physical wear and tear.

OBJECTIVE

This study sought to compare the quality of life by World Health Organization (whoqol-bref) questionnaire of 61 teachers working at schools with different acoustic conditions.

METHODS

This paper reports on a descriptive exploratory study aimed at ascertaining the following: (1) outdoor sound pressure levels in the immediate surroundings of two primary schools; (2) background noise levels inside classrooms; (3) reverberation times in classrooms; (4) the teacher's perception of noise in the work environment; (5) the teacher's vocal intensity in the classroom; and (6) the teacher's perceived quality of life.

RESULTS

It was found that the quality of life of teachers, as well as the major causes of acoustic discomfort, do not stem from a source outside the classroom, halls, and physical education classes. Instead, they originate inside the classroom and are caused by students during school hours; the teachers' vocal intensity exceeds the limits of tolerability both in schools that provide acoustic comfort and in those that do not.

CONCLUSIONS

The basic conditions required to ensure the health of the participants in this study during their workday were found to be unsatisfactory.

Vocal Tract Discomfort Scale (VTDS) and Voice Symptom Scale (VoiSS) in the Early Identification of Italian Teachers with Voice Disorders

Introduction  The current Italian law does not include any guidance regarding voice education, prevention of voice disorders and screening in subjects with high vocal loading such as teachers. Objectives  We aimed to check the correlation between the Vocal Tract Discomfort Scale (VTDS) with the Voice Symptom Scale (VoiSS) for the evaluation of Italian teachers. In addition, we aimed to investigate whether there are differences in the frequency and intensity of discomfort symptoms in teachers with disabilities comparing vocal tract discomfort symptoms in teachers with high risk (HRVD) and low risk (LRVD) of vocal disorders according to the VoiSS cutoff (> 15.5). Methods  We analyzed 160 Italian teachers (111 women and 49 men) that completed the VTDS and VoiSS at vocal evaluation. The Spearman correlation test was applied to all variables. The Mann-Whitney U test was used to compare the average number of discomfort symptoms among HRVD and LRVD teachers. Results  A moderate positive correlation was observed between the average number, frequency, and intensity of discomfort symptom and the total score, physical domain score, and limitation domain score of the VoiSS. Only the emotional domain score of the VoiSS showed a weak positive correlation ( p  < 0.001). Teachers considered in the HRVD group according to the VoiSS score had a higher number, frequency, and intensity of vocal tract discomfort symptoms. Conclusion  There is correlation between the VTDS and VoiSS scales. Like the VoiSS, the VTDS is a questionnaire that detects HRVD teachers. Therefore, the results suggest that both questionnaires could be useful for a preventive voice program for Italian teachers.

Voice Handicap Index-Throat: Translation and Cross-Cultural Adaptation to Brazilian Portuguese

OBJECTIVE

This study aims to translate and cross-culturally adapt the throat scale of the Voice Handicap Index to the Brazilian Portuguese language.uracy.

MATERIAL AND METHODS

This was performed in five phases translation, synthesis, back translation, review, and pretest. Fifty subjects participated in the pretest, of which 22 participants had chronic cough, 13 had laryngopharyngeal reflux, and 15 had behavioral dysphonia. Of the 50 participants, 40 were female and 10 male, with an average age of 44 years and six months.

RESULTS

In the translation process, only question four had to be translated by a fourth judge. After the back-translation and committee review steps, it was necessary to make adjustments to questions one, four, five, seven, eight, nine, and 10. With regard to question five, the "never" option was significantly associated with the clinical group with behavioral dysphonia (P = 0.016), and with regard to question eight, the option was occasionally significantly associated with the clinical group with laryngopharyngeal reflux (P = 0.015). For question six, all the response categories of the questionnaire, had a significantly higher proportion compared to "not applicable" (P < 0.001). For the other questions, no participants selected the "not applicable" option.

CONCLUSION

The translation and cross-cultural adaptation of the throat scale of the Voice Handicap Index to Brazilian Portuguese was performed successfully; the Voice Handicap Index in Brazilian Portuguese prepared herein was called the Índice de Desvantagem Vocal-Garganta.

Distúrbio de voz relacionado ao trabalho: revisão integrativa

Resumo Objetivos: identificar e sumarizar evidências de estudos sobre a associação entre trabalho e distúrbio de voz. Métodos: revisão integrativa da literatura publicada nas bases de dados PubMed e SciELO entre 2003 e 2017. Foram elegíveis estudos observacionais, em português ou inglês, disponíveis na íntegra para consulta, que abordassem a frequência de disfonia (prevalência ou incidência). Resultados: foram analisados 47 artigos, a idade media sumarizada dos participantes era de 40,6 anos, 78,7% dos artigos estudaram ambos os sexos e 80,9% pesquisaram professores. A prevalência média de distúrbios da voz associados ao trabalho foi de 44,2% e a incidência de 17,0%. O ruído foi indicado como fator associado à disfonia em 25,5% dos estudos, seguido da carga horária de trabalho extensa (17,0%) e alergias (14,9%). Conclusão: os resultados indicam forte conexão entre distúrbio de voz e trabalho, confirmando a elevada prevalência de disfonia, especialmente em trabalhadores que utilizam a voz profissionalmente, bem como sua associação com fatores da organização e do ambiente de trabalho, contribuindo para: a) fortalecer o reconhecimento formal do distúrbio de voz relacionado ao trabalho; b) oferecer embasamento técnico à legislação; c) reforçar a premência de uma política pública para proteção vocal dos trabalhadores.

Factors associated with perception of loud occupational noise by school teachers in basic education in Brazil

OBJECTIVE

To determine the prevalence of the perception of loud noise in basic education schools in Brazil and the associated factors.

METHODS

A cross-sectional study with a representative national sample of teachers. The data collection was conducted with 6,510 teachers from October 2015 to March 2016. All teachers answered a telephone questionnaire with questions related to health and working conditions. The measure of association was prevalence ratio, estimated using Poisson regression.

RESULTS

The prevalence of reported loud occupational noise was 33.0%. There was a positive association in the outcome of classroom disturbance reports (PR = 3.41; 95%CI 3.07 - 3.75), feeling of working under high-pressure levels (PR = 1.33; 95%CI 1.22-1.45), having suffered verbal abuse from students (PR = 1.21; 95%CI 1.11-1.31), teaching in different teaching modalities (PR = 1.21; 95%CI 1.02-1.42), more than 30 active teachers in the school (PR = 1.28; 95%CI 1.07-1.54). The teachers who reported a pleasant school environment (PR = 0.81; 95%CI 0.75-0.87), along with the teachers who worked in rural areas (PR = 0.84; 95%CI 0.75-0.95), experienced less noise at work.

CONCLUSION

The prevalence of loud noise perception in Brazilian schools reached high levels and showed statistical significance with the characteristics of schools and teacher's work environment. These results demonstrate the need for developing public policies that take into consideration the reduction of noise levels in schools.

Comparação da ocorrência de sinais e sintomas de alteração vocal e de desconforto no trato vocal em professores de diferentes níveis de ensino

RESUMO Objetivo Analisar e comparar a ocorrência de sinais e sintomas de voz e de desconforto no trato vocal em docentes de diferentes níveis de ensino. Método Participaram da pesquisa 112 docentes, de ambos os gêneros, de diferentes níveis de ensino, sendo: 38 do Ensino Infantil, 28 do Ensino Fundamental I, 18 do Ensino Fundamental II e 28 do Ensino Médio. Os participantes autoavaliaram suas vozes e responderam um questionário de caracterização pessoal e do trabalho, a Lista de Sinais e Sintomas Vocais, a Escala do Desconforto do Trato Vocal (somente frequência da sensação). Os dados obtidos foram analisados estatisticamente em função dos níveis de ensino utilizando-se o Teste Krukal-Wallis e o Teste Qui-quadrado de Pearson (p<0,05). Resultados No ensino médio, a mediana de idade e a frequência de docentes do gênero masculino foi significativamente maior que nos demais níveis de ensino. Não houve diferença na autoavaliação vocal, na ocorrência de sinais e sintomas vocais e na frequência de desconforto no trato vocal, em função do nível de ensino dos docentes. Conclusão Conclui-se que não houve diferença na ocorrência de sinais e sintomas de voz e de desconforto no trato vocal em docentes de diferentes níveis de ensino.

The Influence of Noise on the Vocal Dose in Women

OBJECTIVE

The objective of this study was to evaluate if noise interferes with the vocal dose in women without vocal complaints.

STUDY DESIGN

This is an experimental and comparative study.

METHODS

Data were collected on 27 women between 22 and 50 years of age without vocal complaints in a university classroom. Speech-language pathology evaluation was performed employing auditory-perceptual analysis and a vocal symptom questionnaire. The acoustics of the classroom were evaluated via both observation of the characteristics of the room and the quantification of background noise and reverberation time. Two distinctive acoustic conditions were created for evaluations: condition 1, a room without acoustic treatment and without noise reproduction, and condition 2, a room without acoustic treatment with noise reproduction. Each participant was evaluated individually in both acoustic conditions. To obtain vocal dose data, a vocal dosimeter was used. Subjects were asked to perform two 10-minute readings, one in each acoustic condition. The order of conditions was randomized between subjects. Subjects were instructed to complete the reading tasks at the vocal intensity deemed appropriate to be heard by a listener in the back of the room. t Tests and the Wilcoxon test were employed to compare parameters across subjects and conditions.

RESULTS

Fundamental frequency, vocal intensity, percentage of phonation, and cycle dose significantly increased in the background noise condition.

CONCLUSION

A positive relation between vocal dose and the presence of excessive noise in the environment was observed.