The recovery of functional continuity after crush injury was measured by a simple electrophsiological technique in semitendinosus muscles of normal and dystrophic mice of the C57BL/6J(dy2Jdy2J) strain. In contrast to virtually complete restitution in normal muscles, only one-third of fibers regained continuity in dystrophic muscles. The study also confirmed the lower resting membrane potentials of dystrophic fibers and the presence of "functional" denervation in some of them.
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