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Capillary muscle

Abstract : The contraction of a muscle generates a force that decreases when increasing the contraction velocity. This “hyperbolic” force–velocity relationship has been known since the seminal work of A. V. Hill in 1938 [Hill AV (1938) Proc R Soc Lond B Biol Sci 126(843):136–195]. Hill’s heuristic equation is still used, and the sliding-filament theory for the sarcomere [Huxley H, Hanson J (1954) Nature 173(4412):973–976; Huxley AF, Niedergerke R (1954) Nature 173(4412):971–973] suggested how its different parameters can be related to the molecular origin of the force generator [Huxley AF (1957) Prog Biophys Biophys Chem 7:255–318; Deshcherevskiĭ VI (1968) Biofizika 13(5):928–935]. Here, we develop a capillary analog of the sarcomere obeying Hill’s equation and discuss its analogy with muscles.
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Submitted on : Wednesday, July 22, 2015 - 9:57:31 PM
Last modification on : Saturday, September 26, 2020 - 11:44:03 PM

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Caroline Cohen, Timothée Mouterde, David Quéré, Christophe Clanet. Capillary muscle. Proceedings of the National Academy of Sciences of the United States of America , National Academy of Sciences, 2015, 112 (20), pp.6301-6306. ⟨10.1073/pnas.1419315112⟩. ⟨hal-01179572⟩

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