Evidence map›Paper›PMID 35834625›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2022

Shorter muscle fascicle operating lengths increase the metabolic cost of cyclic force production.

Owen N Beck, Lindsey H Trejo, Jordyn N Schroeder, Jason R Franz, Gregory S Sawicki

Abstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. On the estimation of total muscle work done in human walking.The Journal of experimental biology · 2025
    Article
  7. Article
  8. Article
  9. Observational
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
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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

5 authors.

Owen N BeckWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia.ORCID 0000-0002-1802-6036
Lindsey H TrejoSchool of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia.
Jordyn N SchroederGeorge W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia.
Jason R FranzJoint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina.ORCID 0000-0001-9523-9708
Gregory S SawickiSchool of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia.

Funding

Dynamic imaging to guide wearable robotic intervention for enhanced mobility in agingR01AG058615 · NIA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI FRANZ, JASON R, SAWICKI, GREGORY STEPHEN · 2018 to 2022
$1.8M
Linking muscle-tendon dynamics and energetics to inform exoskeleton design for improved locomotor economy in aging.F32AG063460 · NIA · GEORGIA INSTITUTE OF TECHNOLOGY · PI BECK, OWEN · 2019 to 2021
$151k
McCamish Parkinson's Disease Innovation ProgramNIA NIH HHS F32 AG063460NIA NIH HHS R01 AG058615
6 · The paper itself

Abstract

During locomotion, force-producing limb muscles are predominantly responsible for an animal's whole body metabolic energy expenditure. Animals can change the length of their force-producing muscle fascicles by altering body posture (e.g., joint angles), the structural properties of their biological tissues over time (e.g., tendon stiffness), or the body's kinetics (e.g., body weight). Currently, it is uncertain whether relative muscle fascicle operating lengths have a measurable effect on the metabolic energy expended during cyclic locomotion-like contractions. To address this uncertainty, we quantified the metabolic energy expenditure of human participants, as they cyclically produced two distinct ankle moments at three ankle angles (90°, 105°, and 120°) on a fixed-position dynamometer using their soleus. Overall, increasing participant ankle angle from 90° to 120° (more plantar flexion) reduced minimum soleus fascicle length by 17% (both moment levels,

Indexed as

Muscle, SkeletalTendonsAnimalsAnkleAnkle JointBiomechanical PhenomenaHumansLocomotionMuscle Contractiondynamometereconomyefficiencyenergeticlength

Identifiers

PMID35834625
PMCPMC9558570

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.