Document Detail

Treating disordered speech and voice in Parkinson's disease online: a randomized controlled non-inferiority trial.
MedLine Citation:
PMID:  21281410     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Telerehabilitation may be a feasible solution to the current problems faced by people with Parkinson's disease in accessing speech pathology services.
AIM: To investigate the validity and reliability of online delivery of the Lee Silverman Voice Treatment (LSVT®) for the speech and voice disorder associated with Parkinson's disease.
METHOD & PROCEDURES: Thirty-four participants with Parkinson's disease and mild-to-moderate hypokinetic dysarthria took part in the randomized controlled non-inferiority laboratory trial and received the LSVT® in either the online or the face-to-face environment. Online sessions were conducted via two personal computer-based videoconferencing systems with real-time and store-and-forward capabilities operating on a 128 kbit/s Internet connection. Participants were assessed pre- and post-treatment on acoustic measures of mean vocal sound pressure level, phonation time, maximum fundamental frequency range, and perceptual measures of voice, articulatory precision and speech intelligibility.
OUTCOMES & RESULTS: Non-inferiority of the online LSVT® modality was confirmed for the primary outcome measure of mean change in sound pressure level on a monologue task. Additionally, non-significant main effects for the LSVT® environment, dysarthria severity, and interaction effects were obtained for all outcomes measures. Significant improvements following the LSVT® were also noted on the majority of measures. The LSVT® was successfully delivered online, although some networking difficulties were encountered on a few occasions. High participant satisfaction was reported overall.
CONCLUSIONS & IMPLICATIONS: Online treatment for hypokinetic dysarthria associated with Parkinson's disease appears to be clinically valid and reliable. Suggestions for future research are outlined.
Gabriella Constantinescu; Deborah Theodoros; Trevor Russell; Elizabeth Ward; Stephen Wilson; Richard Wootton
Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of language & communication disorders / Royal College of Speech & Language Therapists     Volume:  46     ISSN:  1460-6984     ISO Abbreviation:  Int J Lang Commun Disord     Publication Date:    2011 Jan-Feb
Date Detail:
Created Date:  2011-02-01     Completed Date:  2011-06-16     Revised Date:  2012-09-10    
Medline Journal Info:
Nlm Unique ID:  9803709     Medline TA:  Int J Lang Commun Disord     Country:  England    
Other Details:
Languages:  eng     Pagination:  1-16     Citation Subset:  IM    
Copyright Information:
© 2010 Royal College of Speech & Language Therapists.
School of Health and Rehabilitation Sciences University of Queensland, Brisbane, Australia.
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MeSH Terms
Aged, 80 and over
Dysarthria / rehabilitation*
Follow-Up Studies
Middle Aged
Parkinson Disease / rehabilitation*
Prospective Studies
Remote Consultation*
Single-Blind Method
Speech Acoustics
Speech Production Measurement
Therapy, Computer-Assisted / methods*
Voice Disorders / rehabilitation*
Voice Training*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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