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Science 17 January 1969:
Vol. 163. no. 3864, pp. 296 - 298
DOI: 10.1126/science.163.3864.296
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Articles

Laser Diffraction Studies on Single Skeletal Muscle Fibers

Derek Cleworth 1 and K. A. P. Edman 1

1 Los Angeles Country Heart Association Cardiovascular Research Laboratory and Department of Physiology, University of California, Los Angeles Medical Center, Los Angeles 90024

Sarcomere movements during isometric tetanic contractions were resolved to 50 angstroms by diffraction techniques. After a latent period that followed the first stimulus, all sarcomeres shortened simultaneously and uniformly. Oscillations in length and tension in synchrony with the stimuli occurred during an incomplete tetanus. However, no oscillations in length were detected during the plateau of a tetanus.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Effects of intracellular acidification and varied temperature on force, stiffness, and speed of shortening in frog muscle fibers.
T. Radzyukevich and K. A. P. Edman (2004)
Am J Physiol Cell Physiol 287, C106-C113
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Science. ISSN 0036-8075 (print), 1095-9203 (online)