Browsing by Author "Acevedo, Karol"

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    High-flow Nasal Cannula: Is it the panacea for pulmonary rehabilitation?
    (Elsevier B.V., 2023) Acevedo, Karol; Fajardo Gutiérrez, Jeniffer; Moya Gallardo, Eduardo Sebastián
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    Validation of the Spanish Version of the Voice-Related Quality of Life Questionnaire: Psychometric Properties and Clinical Applications
    (2024) Contreras-Ruston, Francisco; Fuentes, Andres Rosenbaum; Velasquez, Lukas Salfate; Acevedo, Karol; Gonzalez, Nury; Meneses, Norma Leon; Napolitano, Carla; Guzman, Marco
    Introduction: The present study aimed to validate the Voice-Related Quality of Life (V-RQOL), vocal self-assessment questionnaire for Spanish. Methods: The validation and psychometric properties were developed according to the criteria of the Scientific Advisory Committee of Medical Outcomes Trust (SAC). The Spanish translation for linguistic and cultural adaptation of the V-RQOL was used. The study involved 193 participants, including 90 vocally healthy individuals and 103 patients with voice disorders, to establish validity. To evaluate reliability, the protocol was applied to 40 participants with dysphonia, who answered it twice before the treatment. Then to determine response changes, the responses of 13 dysphonic participants to the V-RQOL for Spanish were analyzed after intervention and then compared to the initial ones. Clinicians contrasted subjects' V-RQOL results with a perceptual analysis of voice quality using the GRBAS scale. In order to determine sensitivity and specificity cut-off values, tools results were subjected to the receiver operating characteristic curve analysis. The sensitivity was obtained from the experimental group (dysphonic group) and the specificity from the control group (non-dysphonic group). Results: This version of the V-RQOL questionnaire may be used as part of the standard assessment process of people with voice complaints and as an outcome of treatment efficacy in clinical trials. Conclusion: A validation of the V-RQOL for Spanish in Chilean population was achieved.
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    Voice Performance Chart: A Pedagogical Tool to Enhance Vocal Expressive Ability in Acting Students
    (2024) Fernandez-Fresard, Gala; Acevedo, Karol
    The purpose of the present study was to explore the effectiveness of the Voice Performance Chart (VPCH) as a pedagogical training tool to enhance vocal expressive ability of 1st year acting students. Forty recorded audio samples were perceptually assessed by six blinded raters, using a five -points Likert scale for each of the dependent variables observed. Results showed that loudness, pitch, and speech rate variations significantly differ when comparing the vocal condition before and after a 11 weeks training period. That suggests that VPCH can be an effective pedagogical tool to develop vocal expressive capabilities of acting students, by enhancing their expressive nuances level, according to the text content. Additionally, it might be argued that VPCH is an effective pedagogical tool not only for acting students, but also for individuals from any discipline requiring the use of the spoken voice in a professional context and/or in an expressive sense.