NDLI: In vivo assessment of muscle mechanical properties using a low-cost surface wave method

Content Provider	IEEE Xplore Digital Library
Author	Benech, N. Aguiar, S. Grinspan, G.A. Brum, J. Negreira, C.
Copyright Year	2012
Description	Author affiliation: Lab. de Biomecanica, Univ. de la Republica, Montevideo, Uruguay (Aguiar, S.) \|\| Lab. de Acust. Ultrasonora, Univ. de la Republica, Montevideo, Uruguay (Benech, N.; Grinspan, G.A.; Brum, J.; Negreira, C.)
Abstract	Knowledge of muscle mechanical properties is important in clinical practice and biomechanical research. In usual clinical practice the muscle's Young modulus (Y) is qualitatively inferred through manual palpation and others valuation techniques of joint range. Although these methods are sensitive, they have predictable variations between different examiners, which reveals the need for methods capable of providing reliable quantitative values of muscular elasticity. Previous studies have shown that transient elastography (TE) is a useful method for assess locally and in vivo the Young modulus of muscle. In these works, experiments using TE were carried out on biceps brachii of healthy volunteers, testing the muscular elasticity changes under three load conditions: 0, 1 and 2 Kg. However, due to its high cost, this method is currently unavailable in many countries for standard clinical practice. In this work, taking into account the existing background with TE, we propose a low-cost method based on surface wave (SW) propagation for the in vivo assessment of the muscle's global mechanical properties. To validate the method, we repeated the experiments with TE, and compared the quantitative values and the general behavior exhibited by both methods. The results showed a good agreement between TE and SW methods, explaining the differences mainly by diffraction effects. We think that the in the current context, this method could be used widely in the rehabilitative and sports medicine field, both as a monitoring tool as well as research.
Starting Page	2571
Ending Page	2574
File Size	522587
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0644
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Muscles Elasticity In vivo Biomechanics Surface waves Sensors Dispersion Transient elastography Skeletal muscle
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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