Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 561803
Title Quantification of local surface strains of cat gastrocnemius medialis muscle during contraction
Author(s) Bavel, H. Van; Holtzer, C.A.J.; Leeuwen, J.L. Van; Muijtjens, A.M.M.; Willems, P.J.B.; Drost, M.R.
Source Netherlands Journal of Zoology 48 (1998)4. - ISSN 0028-2960 - p. 323 - 334.
DOI https://doi.org/10.1163/156854298X00020
Publication type Refereed Article in a scientific journal
Publication year 1998
Keyword(s) Aponeurosis - Deformation - Muscle - Principal strain - Strain field
Abstract

An in vivo method for measuring local deformations of the surface of skeletal muscles is presented. The method was applied to the aponeurosis of the medial gastrocnemius muscle (MG) of cat. Approximately 150 fluorescent polystyrene markers were attached to the aponeurosis and the distal muscle fibres of the MG. Two-dimensional video recordings of the muscle-tendon complex in situ during active force production at fixed muscle length were made. Principal strains (ε1 and ε2) and strains in the longitudinal direction of the muscle-tendon complex (εlon) and in the transverse direction (εt) were calculated. The aponeurosis extended during contraction of the MG. Mean longitudinal strain of the aponeurosis was approximately 2%. An increase in strain was found in the disto-proximal direction. In the transverse direction, large inhomogeneities in the strain were found.

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