Authors: Wohlert AB
Title: Service delivery variables and outcomes of treatment for hypokinetic dysarthria in Parkinson disease
Source: Journal of Medical Speech Language Pathology 2004 12(4): 235-239
Year: 2004
Research Design: Non Randomised Controlled Trial
Rating Score: 00/10
This rating is confirmed
Eligibility specified - Y
Random allocation - N
Concealed allocation - N
Baseline comparability - N
Blind subjects - N
Blind therapists - N
Blind assessors - N
Adequate follow-up - N
Intention-to-treat analysis - N
Between-group comparisons - N
Point estimates and variability - N

Treatment to increase vocal loudness was provided to 11 individuals with hypokinetic dysarthria as a consequence of Parkinson disease. Participants were assigned to one of three treatment schedules: four times per week for 4 weeks, two times per week for 8 weeks, or two times per week for four weeks. Measurements taken before treatment, at the end of treatment, and 3 months following the end of treatment showed that all participants, regardless of schedule, increased their voice intensity while reading aloud, and most increased their voice intensity while sustaining phonation of a vowel. The schedule of treatment, including the total number of sessions, did not have a predictable effect on the outcomes of the treatment.

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