Evidence map›Paper›PMID 40828574›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2025

In vivo characterization of Achilles subtendon function and morphology within the tendon cross section and along the free tendon.

Kathryn S Strand, Todd J Hullfish, Josh R Baxter

Abstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. A Novel Measurement of Altered Achilles Subtendon Load Sharing 6-12 Months Following Rupture.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026
    Article
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Kathryn S StrandDepartment of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, United States.ORCID 0009-0008-0946-5927
Todd J HullfishDepartment of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, United States.ORCID 0000-0003-3625-1082
Josh R BaxterDepartment of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, United States.ORCID 0000-0003-0269-2170

Funding

Research Project 2P50AR080581 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI LOUIS J SOSLOWSKY · 2023 to 2026
$7.9M
HHS | NIH | National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) P50AR080581NIAMS NIH HHS P50 AR080581NSF | National Science Foundation Graduate Research Fellowship Program (GRFP) DGE-2236662
6 · The paper itself

Abstract

The Achilles tendon is composed of three distinct fascicle bundles, or subtendons, each originating from the head of one of the three triceps surae muscles. In a healthy tendon, these subtendons slide relative to each other during muscle contractions. This subtendon sliding is reduced in older adults and individuals who suffer from an Achilles tendon injury. However, subtendon sliding is challenging to quantify in low-load scenarios that are critical for monitoring subtendon biomechanics in patients with mechanically compromised tendons, such as following an Achilles tendon rupture and repair. The purpose of this study was to develop a reliable method to characterize subtendon behavior in vivo using combined transverse plane ultrasound imaging and neuromuscular electrical stimulation of individual gastrocnemii. We used a Kanade-Lucas-Tomasi point tracking algorithm to quantify tendon displacement during isolated muscle stimulations. Next, we applied

Indexed as

Achilles TendonAdultBiomechanical PhenomenaElectromyographyFemaleHumansMaleMuscle, SkeletalYoung AdultAchilles subtendonsmuscular stimulationultrasound

Identifiers

PMID40828574
PMCPMC12427142

What OpenQuestion holds

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Registered trials

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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.