ArticleJournal of muscle research and cell motility1993
Filament lengths in frog semitendinosus and tibialis anterior muscle fibres.
Article in Journal of muscle research and cell motility, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 5 citations in OpenAlex.
- Thin-filament length correlates with fiber type in human skeletal muscle.American journal of physiology. Cell physiology · 2012Article
- The vertebrate muscle Z-disc: sarcomere anchor for structure and signalling.Journal of muscle research and cell motility · 2009Review
- Measurement of thin filament lengths by distributed deconvolution analysis of fluorescence images.Biophysical journal · 2002Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In frog semitendinosus muscle the descending limb of the length-tension curve is shifted rightward relative to that of tibialis anterior. Both the plateau right corner and the zero-force intercept are equally shifted. To investigate the reason for this shift, we compared filament lengths in the two muscles. Single fibres were mechanically skinned, stretched to reveal filaments clearly, incubated in a solution containing one of several antibodies to enhance filament visualization, and examined by electron microscopy. We found no differences of filament length. Thick filament lengths were 1.62 and 1.61 microns, respectively. I-segment lengths were measured by two methods. With the first, filament length was the same for both muscles, 1.95 or 1.98 microns, depending on the value taken for the troponin repeat; with the second it was 1.92 and 1.94 microns, respectively, for the two muscles. These differences are insignificant. Thus, the reported differences of shape of the length-tension curve are not explainable in terms of differences of filament length.
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