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Scand J Med Sci Sports. 2000 Dec;10(6):321-5.

Biochemical composition of muscle extracellular matrix: the effect of loading.

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  • 1Neuromuscular Research Center, Department of Biology of Physical Activitity, University of Jyväskylä, Finland.


Collagen plays an important role in skeletal muscle both during muscle differentiation and normal muscle growth, and also serves a role as a supportive structure. It is the most abundant protein of the extracellular matrix and of the 19 distinct collagen types, types I, III, IV and V are the dominating ones in skeletal muscle. Both collagen synthesis as well as degradation is influenced by either physical loading or immobilization in skeletal muscle, and recent methods have allowed for greater understanding of the posttranslational processing of collagen.

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