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Cited by 300

The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.

Interactions between internal forces, body stiffness, and fluid environment in a neuromechanical model of lamprey swimming

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Tytell, Eric D., Hsu, Chia-Yu, Williams, Thelma L., Cohen, Avis H., Fauci, Lisa J.·2010·Proceedings of the National Academy of Sciences
DOI 10.1073/pnas.1011564107
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Abstract

Animal movements result from a complex balance of many different forces. Muscles produce force to move the body; the body has inertial, elastic, and damping properties that may aid or oppose the muscle force; and the environment produces reaction forces back on the body. The actual motion is an emergent property of these interactions. To examine the roles of body stiffness, muscle activation, and fluid environment for swimming animals, a computational model of a lamprey was developed. The model uses an immersed boundary framework that fully couples the Navier–Stokes equations of fluid dynamics with an actuated, elastic body model. This is the first model at a Reynolds number appropriate for a swimming fish that captures the complete fluid-structure interaction, in which the body deforms according to both internal muscular forces and external fluid forces. Results indicate that identical muscle activation patterns can produce different kinematics depending on body stiffness, and the optimal value of stiffness for maximum acceleration is different from that for maximum steady swimming speed. Additionally, negative muscle work, observed in many fishes, emerges at higher tail beat frequencies without sensory input and may contribute to energy efficiency. Swimming fishes that can tune their body stiffness by appropriately timed muscle contractions may therefore be able to optimize the passive dynamics of their bodies to maximize peak acceleration or swimming speed.

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Metadata

Authors
Tytell, E. D., Hsu, C.-Y., Williams, T. L., Cohen, A. H., & Fauci, L. J.
Venue
Proceedings of the National Academy of Sciences
Publisher
Proceedings of the National Academy of Sciences
Published
2010-10-29
Volume
107
Issue
46
Pages
19832-19837
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
DOI
10.1073/pnas.1011564107
OpenAlex
W2157348182
Cited by
300
References
37
FWCI
35.06
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Interactions between internal forces, body stiffness, and fluid environment in a neuromechanical model of lamprey swimming. https://app.cochat.ai/papers/10.1073/pnas.1011564107
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Tytell, E. D., Hsu, C.-Y., Williams, T. L., Cohen, A. H., & Fauci, L. J. (2010). Interactions between internal forces, body stiffness, and fluid environment in a neuromechanical model of lamprey swimming. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1011564107

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.