RESUMEN
The purpose of this investigation was to observe laryngeal tissue and vocal function changes over the course of 28 days in a single participant diagnosed by a laryngologist with bilateral nodules. Laryngeal imaging, acoustic variables and perceptual assessments of voice quality, and perceived vocal effort were obtained every morning for 28 consecutive days. A daily journal of occupational and recreational voice use as well as menstruation and alcohol consumption was maintained each day. It was hypothesized that the laryngeal pathology would appear more extensive and the vocal function measures obtained would be worse following extensive voice use. Laryngeal imaging, acoustic variables, and perceptual measures quantified provided evidence to support the study hypotheses. The size, extent, and asymmetry of the bilateral vocal pathologies observed were more extensive on days following occupational and recreational vocal loading. Acoustic and perceptual measures obtained correlated with the laryngeal tissue changes observed. Study findings support a more holistic approach to laryngeal pathology diagnosis that is based on a more thorough understanding of vocal loading considerations up to 48 hours prior to laryngeal endoscopy to better understand the pathophysiology of the observed lesion(s) for most accurate clinical diagnosis.
Asunto(s)
Trastornos de la Voz , Voz , Acústica , Femenino , Humanos , Voz/fisiología , Trastornos de la Voz/diagnóstico , Calidad de la Voz , Entrenamiento de la VozRESUMEN
PURPOSE: Participation in sorority recruitment often results in acute vocal impairment. The purpose of this investigation was to characterize the extent to which voice function and laryngeal appearance may be altered by participation in this social phenomenon. METHODS: Using a within-participant repeated measures design, nine women participating as sorority recruiters completed the study protocol. The following data were collected at two time points, immediately before and after the completion of two weeks of sorority recruitment: stroboscopic laryngeal imaging, vocal acoustic measures, and perceptual measures of vocal effort and voice quality. RESULTS: Perceived phonatory effort and overall severity of voice quality were significantly impaired following sorority recruitment. All participants had evidence of mucosal changes in the form of one or more the following: observed edema, erythema, increased vascularity, glottic margin changes. No significant differences in acoustic measures were identified. CONCLUSIONS: Increased perceived vocal effort, increased overall severity ratings of voice quality, and deleterious vocal fold tissue changes observed support the hypothesis that the acute vocal loading that is characteristic of the sorority recruitment process contributes to a decline in voice function in the short term. Acoustic measures taken either lacked the sensitivity for the perceived decline in voice function or the participants, who were otherwise healthy, managed to adapt the acoustic signal to the tissue changes observed. The extent to which these acute changes may be mitigated with vocal hygiene and voice training is an area for future study.
Asunto(s)
Trastornos de la Voz , Femenino , Humanos , Fonación , Estroboscopía , Trastornos de la Voz/diagnóstico , Trastornos de la Voz/etiología , Calidad de la Voz , Entrenamiento de la VozRESUMEN
Purpose The primary aim of this review was to identify environmental irritants known to trigger chronic cough through the life span and develop a comprehensive clinically useful irritant checklist. Method A scoping review was conducted using the Preferred Reporting Items for Systematic Review and Meta-Analysis Extension for Scoping Reviews, checklist, and explanation. English-language, full-text resources were identified through Medline, PsycINFO, SPORTDiscus, Web of Science, and ProQuest Dissertations and Theses Global. Results A total of 1,072 sources were retrieved; of these, 109 were duplicates. Titles of abstracts of 963 articles were screened, with 295 selected for full-text review. Using the exclusion and inclusion criteria listed, 236 articles were considered eligible and 214 different triggers were identified. Triggers were identified from North America, Europe, Africa, Asia, and Australia. Occupational exposures were also delineated. Conclusions A clinically useful checklist of both frequently encountered triggers and idiosyncratic or rare triggers was developed. The clinical checklist provides a unique contribution to streamline and standardize clinical assessment of irritant-induced chronic cough. The international scope of this review extends the usefulness of the clinical checklist to clinicians on most continents.
Asunto(s)
Lista de Verificación , Irritantes , Asia , Australia , Tos/inducido químicamente , Tos/diagnóstico , Humanos , Irritantes/efectos adversos , América del NorteRESUMEN
The purpose of this research was to characterize the voice physiology requirements of indoor cycling instructors as measured by vocal dose (distance the vocal folds travel and average voice intensity) and perceived phonatory effort with and without amplification. Using a within-participant repeated measures design, eight rhythm-based cycling instructors were consented and scheduled to teach two ecologically valid cycling fitness classes, one amplified and one without amplification. Objective measures included vocal dosimetry and ambient sound level. Perceived phonatory effort and participant demographic information were also collected. Trials were counterbalanced to avoid an order effect. Data analyses indicated a significant difference in perceived phonatory effort between trials (P = 0.005) with the amplified trial resulting in a lower effort. Statistically significant differences between vocal distance dose were not found, with an unexpected finding of increased distance dose with use of amplification. Average voice intensity for female participants was 99.6 dB with amplification and 96.1 dB without amplification. This investigation highlights the importance of occupation specific study of voice use requirements and the difficulty in generalizing the findings from one occupational voice user group to another.