Measurement of Rheologic Properties of Soft Tissue (Muscle Tissue) by Myotonometer

Authors: Petr Šifta, Václav Bittner, Martin Kysela, Matěj Kolář

Abstract:

The purpose of the research described in this work is to answer how to measure the rheologic (viscoelastic) properties tendo–deformational characteristics of soft tissue. The method would also resemble muscle palpation examination as it is known in clinical practice. For this purpose, an instrument with the working name “myotonometer” has been used. At present, there is lack of objective methods for assessing the muscle tone by viscous and elastic properties of soft tissue. That is why we decided to focus on creating or finding quantitative and qualitative methodology capable to specify muscle tone.

Keywords: Rheologicproperties, tendo–deformational characteristics, viscosity, elasticity, hypertonus, spasticity.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1110918

References:

[1] Young, R.R. Delwaide, P.J.: Clinical Neurophysiology in spasticity. Elsevier, Amsterdam, 227 p., 1985
[2] Thilmann, A.F., Burke, D.J., Rymer, W.Z.: Spasticity: Mechanisms and Management. Springer-Verlag, Berlín, 283 p., 1993
[3] Šifta, P., Süssová, J., Zahálka, F.: Objective evaluation of spastic hypertonia with a 3-dimentional motion analysis study: patients after stroke treated with botulinum A toxin, International Journal of Rehabilitation Research 27: 63-64, Suppl.1, June 2004
[4] Dietz, V., Berger, W.: Normal and impaired regulation of muscle stiffness in gait: a new hypothesis about muscle hypertonia. Exp. Neurol., number 79, s. 680-687., 1983
[5] Jörg, W. et al.: Management of spasticity associated Pain with Botulinum Toxin A. Journal of Pain and Symptom Management, volume 20, number 1, s. 223-256., 2000
[6] Sobotka, Z.: Rheology of Material and Structure, p. 12-16, Academia, Prague 1981
[7] Šifta, P.: Measurement of viscoelastic properties of soft tissue in spastic syndrome, postgraduate work, Charles University, Department of Biomechanics and Anatomy, p. 109, 2005
[8] Pandayan, A.D., Price, C.I.M. at al.: Biomechanical examination of a commonly used measure of elasticity. Clinical Biomechanics,Suppl. 16, p. 859–865, 2001
[9] Singer, B., Dunne, J., Allison, G.: Evaluation of triceps surae Muscle length and resistance to passive lengthening in patients with acquired brain injury. Clinical Biomechanics, Suppl. 17, p. 152–161., 2002
[10] Šifta, P., Otáhal, S., Süssová, J.: Measurement of Viscoelastic Propertiesof Soft Tissue in Spastic Syndrome.Neurorehabilitation and Neural Repair, Vol. 20, n. 1, March 2006, 4th Congress for NeuroRehabilitation. ISSN 1545 – 9683
[11] Stupka, M.:Possibility of identification of changes of muscle tonus with CT examination, postgraduate work at Charles University, Department of Biomechanics and Anatomy, p. 109, 2001