Effects of Treatment Intensity on Outcomes in Acquired Apraxia of Speech Purpose This investigation was designed to examine the effects of treatment intensity (i.e., dose frequency) on the outcomes of Sound Production Treatment (SPT) for acquired apraxia of speech. Method Five men with chronic apraxia of speech and aphasia received both intense SPT (3 hr per day/3 days per ... Clinical Focus
Clinical Focus  |   March 01, 2018
Effects of Treatment Intensity on Outcomes in Acquired Apraxia of Speech
 
Author Affiliations & Notes
  • Julie L. Wambaugh
    VA Salt Lake City Health Care System, UT
    University of Utah, Salt Lake City
  • Sandra Wright
    VA Salt Lake City Health Care System, UT
  • Emily Boss
    VA Pittsburgh Health Care System, PA
  • Shannon C. Mauszycki
    VA Salt Lake City Health Care System, UT
    University of Utah, Salt Lake City
  • Catharine DeLong
    VA Salt Lake City Health Care System, UT
    University of Utah, Salt Lake City
  • William Hula
    VA Pittsburgh Health Care System, PA
  • Patrick J. Doyle
    VA Pittsburgh Health Care System, PA
    Geriatric Research Education and Clinical Center, VA Pittsburgh Health Care System, PA
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication.×
  • Correspondence to Julie L. Wambaugh: julie.wambaugh@health.utah.edu
  • Editor: Margaret Blake
    Editor: Margaret Blake×
  • Associate Editor: Donald Robin
    Associate Editor: Donald Robin×
  • Publisher Note: This article is part of the Special Issue: Select Papers From the 46th Clinical Aphasiology Conference.
    Publisher Note: This article is part of the Special Issue: Select Papers From the 46th Clinical Aphasiology Conference.×
Article Information
Speech, Voice & Prosodic Disorders / Apraxia of Speech & Childhood Apraxia of Speech / Special Issue: Select Papers From the 46th Clinical Aphasiology Conference / Clinical Focus
Clinical Focus   |   March 01, 2018
Effects of Treatment Intensity on Outcomes in Acquired Apraxia of Speech
American Journal of Speech-Language Pathology, March 2018, Vol. 27, 306-322. doi:10.1044/2017_AJSLP-16-0188
History: Received October 23, 2016 , Revised March 11, 2017 , Accepted April 3, 2017
 
American Journal of Speech-Language Pathology, March 2018, Vol. 27, 306-322. doi:10.1044/2017_AJSLP-16-0188
History: Received October 23, 2016; Revised March 11, 2017; Accepted April 3, 2017

Purpose This investigation was designed to examine the effects of treatment intensity (i.e., dose frequency) on the outcomes of Sound Production Treatment (SPT) for acquired apraxia of speech.

Method Five men with chronic apraxia of speech and aphasia received both intense SPT (3 hr per day/3 days per week) and nonintense/traditional SPT (SPT-T; 1 hr per day/3 days per week) in the context of single-case experimental designs. Each treatment was applied separately to a designated set of experimental words with 1 treatment applied at a time. Twenty-seven treatment sessions were conducted with each phase of treatment. Accuracy of articulation of target sounds within treated and untreated experimental words was measured during the course of the investigation.

Results All participants demonstrated improved articulation with both treatment intensities. Better maintenance of gains for treated items was found with SPT-T for 2 participants as measured at an 8-week posttreatment retention probe. Superior maintenance of increased accuracy of production of untreated items was also observed with SPT-T for all participants.

Conclusion A less intense (distributed) application of SPT facilitated better maintenance of improved articulatory accuracy for untreated items, and in some cases treated items, than intense SPT.

Supplemental Materials https://doi.org/10.23641/asha.5734053

Acknowledgments
This research was supported by VA Rehabilitation R&D Merit Review Project RX001782 (NCT 02332915; awarded to Julie L. Wambaugh), Research Career Scientist Award 23727 (awarded to Julie L. Wambaugh), and Career Development Award RX000749 from the U.S. Department of Veterans Affairs Rehabilitation Research and Development Service (awarded to Shannon C. Mauszycki). The contents do not represent the views of the U.S. Department of Veterans Affairs or the U.S. Government.
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