Assessment of orofacial strength in patients with dysarthria

Nancy Pearl Solomon, Heather Clark, Matthew J. Makashay, Lisa A. Newman

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Assessment of orofacial weakness is common during the evaluation of patients with suspected dysarthria. This study addressed the validity of clinical assessments of orofacial weakness by comparing clinical (subjective) ratings to instrumental (objective) measures. Fortyfour adults referred to a speech pathology clinic for dysarthria evaluation were tested for strength of the tongue during elevation, lateralization, and protrusion, and for the strength of the muscles of the lower face during buccodental and interlabial compression. Subjective assessment of weakness involved rating maximum resistance against a firmly held tongue depressor, using a 5-point scale. Objective assessment involved the Iowa Oral Performance Instrument (IOPI), measured as the maximal pressure generated against an air-filled bulb. A recent adaptation to the IOPI permitted testing of tongue and cheek strength using tasks that are comparable to the subjective tasks. Moderate correlations were found between the objective and subjective evaluations, with the strongest correlations for tongue lateralization. Lower pressure values were associated with higher subjective ratings of weakness for each task, although there was substantial overlap in the data. These results, combined with the notion that examiner bias is inherent to clinical assessment, support the use of instrumentation to improve objectivity and precision of measurement in the clinic.

Original languageEnglish (US)
Pages (from-to)251-258
Number of pages8
JournalJournal of Medical Speech-Language Pathology
Volume16
Issue number4
StatePublished - Dec 1 2008
Externally publishedYes

Fingerprint

Dysarthria
Tongue
Speech-Language Pathology
Pressure
Cheek
Muscle Strength
Air

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Rehabilitation
  • Speech and Hearing

Cite this

Solomon, N. P., Clark, H., Makashay, M. J., & Newman, L. A. (2008). Assessment of orofacial strength in patients with dysarthria. Journal of Medical Speech-Language Pathology, 16(4), 251-258.

Assessment of orofacial strength in patients with dysarthria. / Solomon, Nancy Pearl; Clark, Heather; Makashay, Matthew J.; Newman, Lisa A.

In: Journal of Medical Speech-Language Pathology, Vol. 16, No. 4, 01.12.2008, p. 251-258.

Research output: Contribution to journalArticle

Solomon, NP, Clark, H, Makashay, MJ & Newman, LA 2008, 'Assessment of orofacial strength in patients with dysarthria', Journal of Medical Speech-Language Pathology, vol. 16, no. 4, pp. 251-258.
Solomon, Nancy Pearl ; Clark, Heather ; Makashay, Matthew J. ; Newman, Lisa A. / Assessment of orofacial strength in patients with dysarthria. In: Journal of Medical Speech-Language Pathology. 2008 ; Vol. 16, No. 4. pp. 251-258.
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