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Forty-five subjects with Idiopathic Parkinson disease completed extensive pretreatment neurological, otolaryngologicai, neuropsychological, and speech assessments. All subjects completed 16 sessions of intensive speech treatment, 4 times a week for 1 month. Pre- and post-treatment measures included intensity and maximum duration during sustained vowel phonation. Intensity, habitual fundamental frequency, fundamental frequency variability, and utterance and pause duration were measured during reading of the \u201cRainbow Passage\u201d and conversational monologue as well. Family and subject self-ratings were completed pre- and post-treatment for the perceptual variables loudness, monotonicity, hoarseness, overall intelligibility, and initiation of conversation. Significant pre- to post-treatment improvements were observed for more variables and were of greater magnitude for the subjects who received the voice and respiration treatment (LSVT). Only subjects who received the LSVT rated a significant decrease post-treatment on the impact of Parkinson disease on their communication. Correlations between descriptive prognostic variables (i.e., stage of disease, speech\/voice severity rating, depression, and time since diagnosis) and magnitude of treatment-related change indicated these factors did not significantly predict treatment effectiveness. These findings suggest that intensive voice and respiration (LSVT) treatment, focusing on increased vocal fold adduction and respiration, is more effective than respiration (R) treatment alone for improving vocal intensity and decreasing the impact of Parkinson disease on communication.<\/jats:p>","DOI":"10.1044\/jshr.3806.1232","type":"journal-article","created":{"date-parts":[[2014,8,26]],"date-time":"2014-08-26T19:09:37Z","timestamp":1409080177000},"page":"1232-1251","source":"Crossref","is-referenced-by-count":309,"title":["Comparison of Two Forms of Intensive Speech Treatment for Parkinson Disease"],"prefix":"10.1044","volume":"38","author":[{"given":"Lorraine Olson","family":"Ramig","sequence":"first","affiliation":[{"name":"Department of Communication Disorders and Speech Science, University of Colorado-Boulder and The Wilbur James Gould Voice Research Center, Denver Center For The Performing Arts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefanie","family":"Countryman","sequence":"additional","affiliation":[{"name":"The Wilbur James Gould Voice Research Center, Denver Center For The Performing Arts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laetitia L.","family":"Thompson","sequence":"additional","affiliation":[{"name":"Neuropsychology Laboratory, University of Colorado, School of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiyuki","family":"Horii","sequence":"additional","affiliation":[{"name":"Department of Communication Disorders and Speech Science, University of Colorado-Boulder and The Wilbur James Gould Voice Research Center, Denver Center For The Performing Arts"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1310","reference":[{"key":"e_1_3_2_2_1","doi-asserted-by":"crossref","first-page":"111","DOI":"10.1080\/00222895.1971.10734898","article-title":"A closed-loop theory of motor learning","volume":"3","author":"Adams J. 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