Abstract
Viscoelastic properties of laryngeal posturing muscles
The Journal of the Acoustical Society of America, Vol.114(4_Supplement), pp.2458-2458
10/01/2003
DOI: 10.1121/1.4779633
Abstract
Viscoelastic properties of canine laryngeal muscles were measured in a series of in vitro experiments. Laryngeal posturing that controls vocal fold length and adduction/abduction is an essential component of the voice production. The dynamics of posturing depends on the viscoelastic and physiological properties of the laryngeal muscles. The time-dependent and nonlinear behaviors of these tissues are also crucial in the voice production and pitch control theories. The lack of information on some of these muscles such as posterior cricoarytenoid muscle (PCA), lateral cricoarytenoid muscle (LCA), and intraarytenoid muscle (IA) was the major incentive for this study. Samples of PCA and LCA muscles were made from canine larynges and mounted on a dual-servo system (Ergometer) as described in our previous works. Two sets of experiments were conducted on each muscle, a 1-Hz stretch and release experiment that provides stress–strain data and a stress relaxation test. Data from these muscles were fitted to viscoelastic models and Young’s modulus and viscoelastic constants are obtained for each muscle. Preliminary data indicates that elastics properties of these muscles are similar to those of thyroarytenoid and cricothyroid muscles. The relaxation response of these muscles also shows some similarity to other laryngeal muscles in terms of time constants.
Details
- Title: Subtitle
- Viscoelastic properties of laryngeal posturing muscles
- Creators
- Fariborz Alipour - University of IowaEric Hunter - University of Iowa, Communication Sciences and DisordersIngo Titze - University of Iowa
- Resource Type
- Abstract
- Publication Details
- The Journal of the Acoustical Society of America, Vol.114(4_Supplement), pp.2458-2458
- DOI
- 10.1121/1.4779633
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Language
- English
- Date published
- 10/01/2003
- Academic Unit
- Communication Sciences and Disorders; School of Music; Teaching and Learning
- Record Identifier
- 9984719739502771
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