Nonparticipatory stiffness in the male perioral complex

Chu Shin Ying, Steven M. Barlow, Jaehoon Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Purpose: The objective of this study was to extend previous published findings in the authors' laboratory using a new automated technology to quantitatively characterize nonparticipatory perioral stiffness in healthy male adults. Method: Quantitative measures of perioral stiffness were sampled during a nonparticipatory task using a computer-controlled linear servo motor to impose a series of tensile displacements over a span of approximately 24 mm at the oral angle in 20 healthy young male adults. Perioral electromyograms were simultaneously sampled to confirm nonparticipation or passive muscle state. Perioral stiffness, derived as a quotient from resultant force (DF) and oral span (DX), was modeled with regression techniques and subsequently compared to previously reported perioral stiffness data for female adults. Results: Multilevel regression analysis revealed a significant quadratic relation between the perioral stiffness and interangle span; however, no significant difference was found between adult males and females. Conclusion: These normative measures will have application to future studies designed to objectively assess the effects of pathology (i.e., progressive neuromotor disease, traumatic brain insult) and intervention (pharmacologic, neurosurgical, and reconstructive surgery of the face [i.e., cleft lip, trauma, missile injuries]) on facial animation and speech kinematics.

Original languageEnglish
Pages (from-to)1353-1359
Number of pages7
JournalJournal of Speech, Language, and Hearing Research
Volume52
Issue number5
DOIs
Publication statusPublished - 1 Oct 2009
Externally publishedYes

Fingerprint

Reconstructive Surgical Procedures
Facial Injuries
Multilevel Analysis
Cleft Lip
Brain Diseases
Electromyography
Biomechanical Phenomena
Young Adult
multi-level analysis
quantitative method
Regression Analysis
pathology
Pathology
surgery
Technology
trauma
new technology
Muscles
brain
regression analysis

Keywords

  • Biomechanics
  • Interangle
  • Lower lip
  • Rigidity
  • Upper lip

ASJC Scopus subject areas

  • Speech and Hearing

Cite this

Nonparticipatory stiffness in the male perioral complex. / Shin Ying, Chu; Barlow, Steven M.; Lee, Jaehoon.

In: Journal of Speech, Language, and Hearing Research, Vol. 52, No. 5, 01.10.2009, p. 1353-1359.

Research output: Contribution to journalArticle

Shin Ying, Chu ; Barlow, Steven M. ; Lee, Jaehoon. / Nonparticipatory stiffness in the male perioral complex. In: Journal of Speech, Language, and Hearing Research. 2009 ; Vol. 52, No. 5. pp. 1353-1359.
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