Evidence map›Paper›PMID 34274923›Full record

ReviewGerontology2022

Reduced Achilles Tendon Stiffness Disrupts Calf Muscle Neuromechanics in Elderly Gait.

Rebecca L Krupenevich, Owen N Beck, Gregory S Sawicki, Jason R Franz

Open access · bronzeAbstract readReview
In one paragraph

Review in Gerontology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Relationship Between Structure and Age in Healthy Achilles Tendons.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
    Article
  5. Article
  6. Observational
  7. Article
  8. Article
  9. Article
  10. Habitually wearing high heels may improve user walking economy in any footwear.Journal of applied physiology (Bethesda, Md. : 1985) · 2024
    Article
  11. Article
  12. Article
  13. 3D characterization of the triple-bundle Achilles tendon from in vivo high-field MRI.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2023
    Article
  14. Walking Stability and Risk of Falls.Bioengineering (Basel, Switzerland) · 2023
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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 1 country.

Rebecca L KrupenevichJoint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina, USA.
Owen N BeckThe George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA.
Gregory S SawickiThe George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA.
Jason R FranzJoint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina, USA.
Georgia Institute of Technology · USNorth Carolina State University · USUniversity of North Carolina at Chapel Hill · US

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
The Role of Foot Structure and Function on Walking Mechanics and Energetics in AgingF32AG067675 · NIA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI KRUPENEVICH, REBECCA LYNN · 2020 to 2022
$160k
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
NIA NIH HHS F32 AG063460NIA NIH HHS F32 AG067675NIA NIH HHS R01 AG058615
6 · The paper itself

Abstract

Older adults walk slower and with a higher metabolic energy expenditure than younger adults. In this review, we explore the hypothesis that age-related declines in Achilles tendon stiffness increase the metabolic cost of walking due to less economical calf muscle contractions and increased proximal joint work. This viewpoint may motivate interventions to restore ankle muscle-tendon stiffness, improve walking mechanics, and reduce metabolic cost in older adults.

Indexed as

Achilles TendonAgedAnkleAnkle JointBiomechanical PhenomenaGaitHumansMuscle, SkeletalWalkingAgingAnkle exoskeletonBiomechanicsEnergy expenditureMuscle mechanicsStiffness

Identifiers

PMID34274923
PMCPMC8761229
OpenAlexW3184841019

What OpenQuestion holds

Textmetadata
LicenceTDM
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.