Stiffness and contractile properties of avian normal and dystrophic muscle bundles as measured by sinusoidal length perturbations.

Abstract

Both tension and stiffness as a function of muscle length were measured under relaxing conditions on isolated small bundles of chemically skinned myofibers from normal and dystrophic chicken pectoral muscles. It was shown that the dystrophic muscle was stiffer than normal muscle and developed more tension for the same amount of stretch. A fraction of… (More)

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