title: Viscoelastic modeling of canine vocalis muscle in relaxation.
abstract: Analysis of vocal fold vibration requires information on the viscoelastic properties of the vocalis muscle. The force response of two canine vocalis muscles was measured in one-dimensional, stepwise elongation of the tissue as a function of time with a computer-controlled ergometer. The viscoelastic behavior of the muscle in its passive state was demonstrated through the relaxation test. A quasilinear viscoelastic model was used to parametrize the relaxation function, and results are reported for various levels of strain. Furthermore, a model was used to obtain theoretical time-dependent stress-strain curves to compare with experimental data.
mesh_terms: D000818:Animals; D004285:Dogs; D004548:Elasticity; D066298:In Vitro Techniques; D008954:Models, Biological; D009119:Muscle Contraction; D009126:Muscle Relaxation; D013061:Speech Acoustics; D013314:Stress, Mechanical; D014783:Viscosity; D014827:Vocal Cords / Q000502:physiology*