Evidence map›Paper›PMID 34501539›Full record

ArticleInternational journal of environmental research and public health2021

Characteristics of the Passive Muscle Stiffness of the Vastus Lateralis: A Feasibility Study to Assess Muscle Fibrosis.

Akifumi Maeda, Maito Yamagishi, Yuta Otsuka, Takayuki Izumo, Tomohiro Rogi, Hiroshi Shibata, Masahiro Fukuda, Takuma Arimitsu, Yosuke Yamada, Naokazu Miyamoto and 1 more

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 34% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Measurement of muscle passive stiffness in vibration-exposed groundskeepers.International archives of occupational and environmental health · 2026
    Article
  4. Article
  5. 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

11 authors at 5 institutions in 1 country.

Akifumi MaedaFaculty of Sport and Health Science, Ritsumeikan University, Shiga 525-8577, Japan.
Maito YamagishiFaculty of Sport and Health Science, Ritsumeikan University, Shiga 525-8577, Japan.
Yuta OtsukaInstitute for Health Care Science, Suntory Wellness Ltd., Kyoto 619-0284, Japan.ORCID 0000-0003-2482-2802
Takayuki IzumoInstitute for Health Care Science, Suntory Wellness Ltd., Kyoto 619-0284, Japan.
Tomohiro RogiInstitute for Health Care Science, Suntory Wellness Ltd., Kyoto 619-0284, Japan.
Hiroshi ShibataInstitute for Health Care Science, Suntory Wellness Ltd., Kyoto 619-0284, Japan.
Masahiro FukudaFukuda Clinic, Osaka 532-0003, Japan.
Takuma ArimitsuFaculty of Sport and Health Science, Ritsumeikan University, Shiga 525-8577, Japan.
Yosuke YamadaNational Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan.ORCID 0000-0002-4284-6317
Naokazu MiyamotoGraduate School of Health and Sports Science, Juntendo University, Chiba 270-1695, Japan.
Takeshi HashimotoFaculty of Sport and Health Science, Ritsumeikan University, Shiga 525-8577, Japan.ORCID 0000-0003-3951-5290
Ritsumeikan University · JPSuntory Foundation for Life Sciences · JPFukuda Denshi (Japan) · JPJuntendo University · JPNational Institute of Biomedical Innovation, Health and Nutrition · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Skeletal muscle fibrosis occurs with aging and has been suggested to impair muscle performance, thereby decreasing quality of life. Recently, muscle stiffness, a surrogate measure of muscle fibrosis, was noninvasively quantified as the shear modulus using ultrasound shear wave elastography (SWE) in humans. We aimed to investigate thigh muscle stiffness in females and males, respectively, across a broad range of ages by using SWE. Eighty-six community-dwelling Japanese people who were aged 30 to 79 years and did not regularly exercise participated in this study. The vastus lateralis (VL) shear modulus was measured at three different knee joint angles: full extension, 90° of flexion, and full flexion. There were no significant main effects of sex or age on the VL shear modulus in full extension or 90° of flexion of the knee. However, the VL shear modulus in knee full flexion was significantly smaller in females than in males and increased with age from 47.9 years. The results suggest that the accelerated increase in VL stiffness that occurs after an individual passes their late 40s may be an important therapeutic target for developing effective treatments and programs that preserve and improve quality of life.

Indexed as

Elasticity Imaging TechniquesQuadriceps MuscleFeasibility StudiesFemaleFibrosisHumansMaleMiddle AgedMuscle, SkeletalQuality of LifeRange of Motion, Articularextracellular matrixsarcopeniathigh muscleultrasound shear wave elastography

Identifiers

PMID34501539
PMCPMC8430484
OpenAlexW3195558549

What OpenQuestion holds

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LicenceCC BY
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.