Structural changes in single muscle fibers after stimulation at a low frequency.

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Structural changes in single muscle fibers after stimulation at a low frequency

Direct stimulation of single muscle fibers from Xenopus laevis at a frequency of 1 Hz results in a decline of the peak isometric twitch tension after about 200 twitches. Fibers were chemically fixed in glutaraldehyde after a varying number of twitches and at several fatigue levels, and the ultrastructural appearance was compared with that of resting fibers treated by identical fixation methods....

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ژورنال

عنوان ژورنال: Journal of General Physiology

سال: 1979

ISSN: 0022-1295,1540-7748

DOI: 10.1085/jgp.74.1.1