Browsing by Author "Castillo, Adrian"

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    Association Between Subglottic Pressure and Pulmonary Function in Individuals With Parkinson's Disease
    (2020) Castillo, Adrian; Castillo, Javiera; Reyes, Alvaro
    Introduction. In individuals with Parkinson's disease (PD), pulmonary complication such as weakness and rigidity of respiratory muscles and reduced cough airflow may be associated with reduced voice production due to limited pulmonary capacity and reduced airflow needed to vibrate the vocal folds. It is not clear, however, which pulmonary function parameter is determinant in the association with peak subglottic pressure (SGP). Therefore, the purpose of this study was to determine the association between peak SGP and pulmonary function parameters in individuals with PD.
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    The Effects of Respiratory Muscle Training on Phonatory Measures in Individuals with Parkinson's Disease
    (2020) Reyes, Alvaro; Castillo, Adrian; Castillo, Javiera; Cornejo, Isabel; Cruickshank, Travis
    Introduction. In individuals with Parkinson's disease (PD), respiratory muscle weakness and rigid-ity, bradykinesia of abdominal muscles and stiffness of the chest wall, affect the respiratory component of voice intensity due to reduced pulmonary capacity and airflow needed to vibrate the vocal folds. It may be possible to improve voice production by strengthening respiratory muscles. The purpose of this study was to evaluate the effects of inspiratory and expiratory muscle training on voice production outcomes in individuals with PD.