{"title":"Speech characteristics in individuals with myasthenia gravis: a case control study.","authors":"Annelise Ayres, Pablo Brea Winckler, Laís Alves Jacinto-Scudeiro, Rafaela Soares Rech, Marina Martins Pereira Padovani, Geraldo Pereira Jotz, Maira Rozenfeld Olchik","doi":"10.1080/14015439.2020.1834614","DOIUrl":"https://doi.org/10.1080/14015439.2020.1834614","url":null,"abstract":"<p><strong>Introduction: </strong>Myasthenia Gravis (MG) is an autoimmune disease. The characteristic symptoms of the disease are muscle weakness and fatigue. These symptoms affect de oral muscles causing dysarthria, affecting about 60% of patients with disease progression.</p><p><strong>Purpose: </strong>Describe the speech pattern of patients with MG and comparing with healthy controls (HC).</p><p><strong>Material and methods: </strong>Case-control study. Participants were divided in MG group (MGG) with 38 patients MG diagnosed and HC with 18 individuals matched for age and sex. MGG was evaluated with clinical and motor scales and answered self-perceived questionnaires. Speech assessment of both groups included: recording of speech tasks, acoustic and auditory-perceptual analysis.</p><p><strong>Results: </strong>In the MGG, 68.24% of the patients were female, with average age of 50.21 years old (±16.47), 14.18 years (±9.52) of disease duration and a motor scale of 11.19 points (±8.79). The auditory-perceptual analysis verified that 47.36% (<i>n</i> = 18) participants in MGG presented mild dysarthria, 10.52% (<i>n</i> = 4) moderate dysarthria, with a high percentage of alterations in phonation (95.2%) and breathing (52.63%). The acoustic analysis verified a change in phonation, with significantly higher shimmer values in the MGG compared to the HC and articulation with a significant difference between the groups for the first formant of the /iu/ (<i>p</i> = <.001). No correlation was found between the diagnosis of speech disorder and the dysarthria self-perception questionnaire.</p><p><strong>Conclusion: </strong>We found dysarthria mild in MG patients with changes in the motor bases phonation and breathing, with no correlation with severity and disease duration.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1834614","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40455046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marie Jeanneteau, Noel Hanna, André Almeida, John Smith, Joe Wolfe
{"title":"Using visual feedback to tune the second vocal tract resonance for singing in the high soprano range.","authors":"Marie Jeanneteau, Noel Hanna, André Almeida, John Smith, Joe Wolfe","doi":"10.1080/14015439.2020.1834612","DOIUrl":"https://doi.org/10.1080/14015439.2020.1834612","url":null,"abstract":"<p><strong>Purpose: </strong>Over a range roughly C5-C6, sopranos usually tune their first vocal tract resonance (<i>R</i>1) to the fundamental frequency (<i>f</i><sub>o</sub>) of the note sung: <i>R</i>1:<i>f</i><sub>o</sub> tuning. Those who sing well above C6 usually adjust their second vocal tract resonance (<i>R</i>2) and use <i>R</i>2:<i>f</i><sub>o</sub> tuning. This study investigated these questions: Can singers quickly learn <i>R</i>2:<i>f</i><sub>o</sub> tuning when given suitable feedback? Can they subsequently use this tuning without feedback? And finally, if so, does this assist their singing in the high range?</p><p><strong>Methods: </strong>New computer software for the technique of resonance estimation by broadband excitation at the lips was used to provide real-time visual feedback on <i>f</i><sub>o</sub> and vocal tract resonances. Eight sopranos participated. In a one-hour session, they practised adjusting <i>R</i>2 whilst miming (i.e. without phonating), and then during singing.</p><p><strong>Results: </strong>Six sopranos learned to tune <i>R</i>2 over a range of several semi-tones, when feedback was present. This achievement did not immediately extend their singing range. When the feedback was removed, two sopranos spontaneously used <i>R</i>2:<i>f</i><sub>o</sub> tuning at the top of their range above C6.</p><p><strong>Conclusions: </strong>With only one hour of training, singers can learn to adjust their vocal tract shape for <i>R</i>2:<i>f</i><sub>o</sub> tuning when provided with visual feedback. One additional participant who spent considerable time with the software, acquired greater skill at <i>R</i>2:<i>f</i><sub>o</sub> tuning and was able to extend her singing range. A simple version of the hardware used can be assembled using basic equipment and the software is available online.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1834612","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38543694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rasika Rajiv Karulkar, Rohit Ravi, Dhanshree R Gunjawate
{"title":"Voice-related complaints and vocal and nonvocal habits of Hindustani classical singers: a questionnaire-based study.","authors":"Rasika Rajiv Karulkar, Rohit Ravi, Dhanshree R Gunjawate","doi":"10.1080/14015439.2020.1788158","DOIUrl":"https://doi.org/10.1080/14015439.2020.1788158","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to profile voice-related complaints, as well as vocal and nonvocal habits among Hindustani classical singers.</p><p><strong>Method: </strong>Cross-sectional study design was used to profile voice-related complaints and vocal and nonvocal habits among Hindustani classical singers. Phase I involved developing a questionnaire for exploring vocal and nonvocal habits. Phase II involved the administration of the survey to 61 Hindustani classical singers.</p><p><strong>Results: </strong>Based on the overall findings, 41% of singers reported of at least three vocal symptoms. The most common vocal symptoms included out of breath while singing, felling tired after singing and experiencing tension or tightness in neck/shoulder. The commonly reported vocal habits included excessive phone use, loud coughing/sneezing, throat clearing and excessive speaking. A high consumption of caffeinated beverages and spicy food were also reported.</p><p><strong>Conclusion: </strong>This study helps to highlight the voice-related complaints and vocal and nonvocal habits of Hindustani classical singers. Further studies, need to explore the prevalence of voice problems incorporating other dimensions of voice evaluation such as acoustic, auditory perceptual, self-reported and laryngeal examination.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1788158","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38139669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seyed Abolfazl Tohidast, Banafshe Mansuri, Rasool Bagheri, Hadi Azimi
{"title":"Determining pain in patients with voice disorders: a qualitative study.","authors":"Seyed Abolfazl Tohidast, Banafshe Mansuri, Rasool Bagheri, Hadi Azimi","doi":"10.1080/14015439.2020.1791249","DOIUrl":"https://doi.org/10.1080/14015439.2020.1791249","url":null,"abstract":"<p><strong>Aim: </strong>The present study aimed to determine pain in patients with voice disorders (PWVDs).</p><p><strong>Patients and methods: </strong>A total number of 28 patients with a range of voice disorders and without any other diseases participated in the study. To gain maximum variation, purposive sampling method was used. Moreover, semi-structured interviews were employed for data collection. The interviews were then continued until data saturation was reached, and the data were subsequently recorded and transcribed verbatim. Qualitative content analysis was utilized for data analysis.</p><p><strong>Results: </strong>Data analysis of the interviews emerged three themes about pain experienced by PWVDs. The emerged themes included location of pain, type of pain, and time of pain occurrence. In this respect, PWVDs reported pain in different locations on their body including head, ears, anterior neck, posterior neck, larynx, temporomandibular joint, submandibular area, shoulders, and upper back. Furthermore, chronic, acute, severe, and mild were the most common types of pain reported by PWVDs. The PWVDs also stated that they had experienced pain at different times, i.e. during speaking, after long-time speaking, after voice use, during swallowing, during palpation, and all the time (even at rest).</p><p><strong>Conclusions: </strong>One of the physical discomforts experienced by PWVDs is pain. According to the results of the present study, pain should properly be considered in the assessment and treatment of PWVDs in clinical practices. Also, our study suggested that a specific scale is needed to measure pain in voice disorders.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1791249","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38153116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Rita Cardoso, Isabel Guimarães, Helena Santos, Joana Carvalho, Daisy Abreu, Nilza Gonçalves, Joaquim J Ferreira
{"title":"Cross-cultural adaptation and validation of the Swallowing Disturbance Questionnaire and the Sialorrhea Clinical Scale in Portuguese patients with Parkinson's disease.","authors":"Ana Rita Cardoso, Isabel Guimarães, Helena Santos, Joana Carvalho, Daisy Abreu, Nilza Gonçalves, Joaquim J Ferreira","doi":"10.1080/14015439.2020.1792979","DOIUrl":"https://doi.org/10.1080/14015439.2020.1792979","url":null,"abstract":"<p><strong>Introduction: </strong>To date, no valid outcome measure has been developed in European Portuguese (EP) to evaluate the Parkinsons' Disease (PD) patients' (PwP) reports regarding their swallowing disturbances.</p><p><strong>Objectives: </strong>The aim of this study was to translate and cross-culturally adapt the Swallowing Disturbance Questionnaire (SDQ) and the Sialorrhea Clinical Scale for PD (SCS-PD) into EP and to determine its clinimetric properties in PwP.</p><p><strong>Materials and methods: </strong>The original English SDQ and SCS-PD versions were cross-culturally adapted following recommendations established in international guidelines. The validation process involved 75 PwP and 65 healthy sex- and age-matched participants.</p><p><strong>Results: </strong>The EP versions of the SDQ and SCS-PD are equivalent to the original versions (content, depth, and scoring). Statistical analyses for the SDQ tool revealed good feasibility (missing data <5%), acceptability (no floor or ceiling effects), excellent internal consistency (Cronbach´s α = 0.95), good construct validity (78.5% revealed large to moderate loadings), moderate convergent validity (<i>r</i> = 0.60), good divergent validity (<i>r</i> = 0.40), good known-groups validity (<i>p</i>-value < .05) and a fair sensitivity and specificity (AUC = 0.700). Statistical analyses for the SCS-PD tool shows good feasibility, reasonable acceptability (floor effect), good internal consistency (Cronbach´s α = 0.85), good construct validity (85.7% showed between large to moderate loadings), good convergent validity (<i>r</i> = 0.78), good divergent validity (<i>r</i> = 0.39), good known groups validity (<i>p</i>-value < .05) and a fair sensitivity and specificity (AUC = 0.704).</p><p><strong>Conclusions: </strong>The EP versions of the SDQ and SCS-PD maintained the characteristics of the original versions and therefore consistent tools to be used in PwP.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1792979","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38254713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Behavioral, social, and emotional well-being in children who stutter: the influence of race-ethnicity.","authors":"Patrick M Briley, Charles Ellis","doi":"10.1080/14015439.2020.1801833","DOIUrl":"https://doi.org/10.1080/14015439.2020.1801833","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this study was to determine if reports of behavioral, emotional and social well-being in children who stutter differ across racial-ethnic groups.</p><p><strong>Materials and methods: </strong>Using 2010-2015 National Health Interview Surveys, data was analyzed from responses of children who stutter's parents, in the United States, to items of the Strength and Difficulties Questionnaire. Parent responses of reporting Strengths and Difficulties Questionnaire items were determined using multiple logistic regression analyses.</p><p><strong>Results: </strong>This sample included a total 42,962 children, of which 875 were identified as children who stutter. Among the children who stutter, reports of well-being were compared from 294 non-Hispanic White, 249 non-Hispanic Black, and 332 Hispanic children who stutter. Results indicated Black children who stutter were less likely than White children who stutter to have many worries, to be unhappy/depressed, and less likely to have difficulties with emotions and concentration. Hispanic children who stutter were less likely than White children who stutter to have many worries, to be unhappy/depressed, and less likely to have difficulties with emotions and concentration. Additionally, differences were observed in measures of behavioral, emotional, and social well-being when within-group comparisons were made, as a function of gender, and when comparisons were made across racial-ethnic groups at different age ranges.</p><p><strong>Conclusions: </strong>Evidence from National Health Interview Surveys suggests racial-ethnic differences exist in reports of behavioral, emotional, and social well-being among children who stutter. Future research is needed to clarify specific contributors to the observed differences across racial-ethnic groups and whether differences are primarily associated with race-ethnicity, the presence of stuttering, or both.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1801833","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38239562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Emotional and behavioural problems of children and adolescents who stutter: Comparison with typically developing peers.","authors":"Tuğçe Karahan Tığrak, Maviş Emel Kulak Kayıkcı, Meltem Çiğdem Kirazlı, Arcan Tığrak","doi":"10.1080/14015439.2020.1855472","DOIUrl":"https://doi.org/10.1080/14015439.2020.1855472","url":null,"abstract":"<p><strong>Purpose: </strong>There are several studies showing contradictory results on concurrent emotional and behavioural problems of children and adolescents who stutter (CAWS). This study aimed to identify whether there is a difference between Turkish-speaking CAWS and their typically developing peers (TDP) in emotional and behavioural problems.</p><p><strong>Methods: </strong>The study group consisted of 45 CAWS, aged between 3.40 and 15.92 years, and the control group consisted of 45 TDP, aged between 3.15 and 16.80 years. Participants were divided into three age groups: early childhood (0-6 years), middle childhood (7-11 years) and adolescence (12-18 years). CAWS and TDP were compared separately in each age group with Mann-Whitney U tests. Assessments of emotional and behavioural problems were conducted with the Child Behaviour Checklist (CBCL) for Ages 1.5-5 and the CBCL for Ages 6-18.</p><p><strong>Results: </strong>In early childhood, CAWS had significantly higher emotional reactivity, anxiety/depression, somatic complaints, withdrawal, sleep problems, attention problems and aggressive behaviour scores than TDP. In middle childhood and adolescence, CAWS had significantly higher anxiety/depression, withdrawal/depression, social problems, attention problems, rule-breaking behaviour and aggressive behaviour scores compared to TDP. In adolescence, somatic problems and thought problems scores were also significantly higher in AWS than TDP.</p><p><strong>Conclusions: </strong>We concluded that emotional and behavioural problems associated with stuttering are noticeable from early childhood to adolescence. Cooperation with mental health professionals may be needed to improve the quality of speech therapy in CAWS.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1855472","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38744194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tricia Hedinger, Kristen Eskridge, Ellie Porter, Daniel Hudock, Tim Saltuklaroglu
{"title":"The perceived impact of fluency on personalities of adults who stutter: implicit evidence of self-stigma.","authors":"Tricia Hedinger, Kristen Eskridge, Ellie Porter, Daniel Hudock, Tim Saltuklaroglu","doi":"10.1080/14015439.2020.1833982","DOIUrl":"https://doi.org/10.1080/14015439.2020.1833982","url":null,"abstract":"<p><strong>Purpose: </strong>The NEO-FFI is an extensively used instrument that has been used to identify personality differences between those who stutter and matched controls or group norms. The goal of this study was to use the NEO-FFI to implicitly capture and quantify self-stigma related to personality in persons who stutter (PWS).</p><p><strong>Methods: </strong>Thirty PWS completed the NEO-FFI twice; once as themselves and once while mentalizing (using theory of mind) to respond as though they did not stutter and had never stuttered, thus comparing their true personality to their perceived personality if they were fluent speakers. Compared to their true personalities, PWS perceived their fluent counterparts to be significantly less neurotic and more extroverted.</p><p><strong>Results: </strong>The differences observed are somewhat analogous, though considerably larger in magnitude than personality differences that have previously been reported when comparing PWS to fluent controls or norms. Differences were interpreted to be due to \"contrast effects\" influencing the comparison. That is, PWS cognitively separated themselves from their fluent counterparts, seeing their true selves in a negative light compared to their fluent counterparts. This \"us\" vs. \"them\" separation is considered evidence of self-stigma related to personality in PWS.</p><p><strong>Conclusions: </strong>The finding that the perceived differences were in the domains of Neuroticism and Extraversion is consistent with prevailing stereotypes about PWS and exemplifies how public stigma can become internalized. Clinical implications are discussed with respect to how similar theory of mind/social comparison exercises can be used in cognitive behavioral therapy to help identify and restructure negative thoughts and beliefs about stuttering.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1833982","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40566939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Using a word association task to investigate semantic depth in swedish-speaking children with developmental language disorder.","authors":"Olof Sandgren, Eva-Kristina Salameh, Ulrika Nettelbladt, Annika Dahlgren-Sandberg, Ketty Andersson","doi":"10.1080/14015439.2020.1785001","DOIUrl":"https://doi.org/10.1080/14015439.2020.1785001","url":null,"abstract":"<p><p>We examined word associations in Swedish children with Developmental Language Disorder (DLD) compared to their typically developing (TD) peers. Furthermore, the study aimed to explore the dimensions of vocabulary knowledge (breadth, depth, and fluency) in these children. Fifty children (15 DLD and 35 TD) participated in the study, aged six to nine years. This age span is commonly associated with substantial lexical reorganisation, by some referred to as the syntagmatic-paradigmatic shift. Fifty items from the Kent-Rosanoff list were used to elicit word associations (say the first word that comes to mind). Word associations were coded as paradigmatic (lion-tiger), syntagmatic (chair-sit), phonological (moon-poon), and other/no answer (foot-hello/bed- -). A semantic depth score (paradigmatic and syntagmatic associations) was calculated and analysed. The children with DLD showed significantly lower semantic depth scores than their TD peers, in line with previous research in English-speaking children. However, the vocabulary dimensions were uniformly affected for the DLD group, contradicting previous findings of semantic depth as a particular area of weakness in this group.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1785001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38080714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matthias Echternach, Marie Köberlein, Donata Gellrich, Marco Guzman, Anne Maria Laukkanen, Fabian Burk, Michael Döllinger, Bernhard Richter, Marie-Anne Kainz
{"title":"Duration of biodynamic changes associated with water resistance therapy.","authors":"Matthias Echternach, Marie Köberlein, Donata Gellrich, Marco Guzman, Anne Maria Laukkanen, Fabian Burk, Michael Döllinger, Bernhard Richter, Marie-Anne Kainz","doi":"10.1080/14015439.2020.1785000","DOIUrl":"https://doi.org/10.1080/14015439.2020.1785000","url":null,"abstract":"<p><strong>Introduction: </strong>In current voice research, there is a growing interest in semi-occluded vocal tract exercises and their contribution to an increased vocal efficiency. However, there are only few studies on the lasting effects.</p><p><strong>Material and methods: </strong>Eight vocally healthy subjects were asked to sustain a phonation at a comfortable loudness on the vowel /i/, with a Fundamental Frequency of 250 Hz (females) or 125 Hz (males). During phonation the subjects were simultaneously recorded with transnasal High Speed Videoendoscopy (HSV, 20,000fps), electroglottography, and audio signals. The subjects then performed a water resistance therapy (WRT) for 10 min (tube: 30 cm length, 5 cm below water surface, diameter 9 mm). Repeated measurements of sustained phonation were performed 0, 5, 10, 20, and 30 min after exercising. From the HSV material the Glottal Area Waveform (GAW) was segmented and GAW parameters were computed.</p><p><strong>Results: </strong>There were strong inter-individual differences concerning the changes of different measures over time after WRT. In general, directly after WRT there was a lowering of the GAW derived Period Perturbation Quotient, a lowering of the Closing Quotient and an increase of the Sound Pressure Level (SPL) in comparison to the pre-intervention measurement. However, only 5 min post WRT there was no longer a clear difference compared to baseline results before WRT. Other values such as Open Quotients exhibited no evident changes by WRT at any timepoint.</p><p><strong>Conclusions: </strong>WRT showed strong inter-individual effects concerning the changes in the evaluated measures post-intervention. General tendencies of some measures directly after the intervention showed a brief effect of only a few minutes.</p>","PeriodicalId":49903,"journal":{"name":"Logopedics Phoniatrics Vocology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14015439.2020.1785000","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38088866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}