Evidence map›Paper›PMID 25418179›Full record

ArticleBiophysical journal2014

Direct measurements of drag forces in C. elegans crawling locomotion.

Yegor Rabets, Matilda Backholm, Kari Dalnoki-Veress, William S Ryu

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.2field-weighted citation impact, top 27% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 60 citations in OpenAlex.

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  11. Physical exertion exacerbates decline in the musculature of an animal model of Duchenne muscular dystrophy.Proceedings of the National Academy of Sciences of the United States of America · 2019
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  12. Article
  13. From head to tail: a neuromechanical model of forward locomotion inPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Article
  14. Three-dimensional simulation of thePhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
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  15. Article
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  17. The nematode C. elegans as a complex viscoelastic fluid.The European physical journal. E, Soft matter · 2015
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

Yegor RabetsInstitute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada.
Matilda BackholmDepartment of Physics & Astronomy and the Brockhouse Institute for Materials Research, McMaster University, Hamilton, Ontario, Canada.
Kari Dalnoki-VeressDepartment of Physics & Astronomy and the Brockhouse Institute for Materials Research, McMaster University, Hamilton, Ontario, Canada; Laboratoire de Physico-Chimie Théorique, UMR Centre National de la Recherche Scientifique 7083 GULLIVER, ESPCI, Paris, France.
William S RyuInstitute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada; Department of Physics, University of Toronto, Toronto, Ontario, Canada. Electronic address: wryu@physics.utoronto.ca.
University of Toronto · CABrockhouse Institute for Materials Research · CALaboratoire de Chimie Théorique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

With a simple and versatile microcantilever-based force measurement technique, we have probed the drag forces involved in Caenorhabditis elegans locomotion. As a worm crawls on an agar surface, we found that substrate viscoelasticity introduces nonlinearities in the force-velocity relationships, yielding nonconstant drag coefficients that are not captured by original resistive force theory. A major contributing factor to these nonlinearities is the formation of a shallow groove on the agar surface. We measured both the adhesion forces that cause the worm's body to settle into the agar and the resulting dynamics of groove formation. Furthermore, we quantified the locomotive forces produced by C. elegans undulatory motions on a wet viscoelastic agar surface. We show that an extension of resistive force theory is able to use the dynamics of a nematode's body shape along with the measured drag coefficients to predict the forces generated by a crawling nematode.

Indexed as

LocomotionAnimalsBiomechanical PhenomenaCaenorhabditis elegans

Identifiers

PMID25418179
PMCPMC4213666
OpenAlexW2069188095

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.