Evidence map›Paper›PMID 25483294›Full record

ArticleClinical biomechanics (Bristol, Avon)2015

Shear wave elastography of passive skeletal muscle stiffness: influences of sex and age throughout adulthood.

Sarah F Eby, Beth A Cloud, Joline E Brandenburg, Hugo Giambini, Pengfei Song, Shigao Chen, Nathan K LeBrasseur, Kai-Nan An

Open access · greenAbstract read
In one paragraph

Article in Clinical biomechanics (Bristol, Avon), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 126 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
126citing papers in PubMed, 2 pooled it
11.3field-weighted citation impact, top 1% 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

126 citing papers in PubMed, 2 syntheses or guidelines pooled it, 285 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Does 25(OH)D deficiency affect muscle elasticity, physical function, pain, and quality of life? A shear-wave elastography-based cross-sectional study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
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66 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 1 country.

Sarah F EbyMayo Medical School, Mayo Graduate School, Medical Scientist Training Program, College of Medicine, Mayo Clinic, Rochester, MN, USA; Biomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, Rochester, MN, USA.
Beth A CloudMayo Graduate School and the Center for Clinical and Translational Science, College of Medicine, Mayo Clinic, Rochester, MN, USA; Biomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, Rochester, MN, USA.
Joline E BrandenburgDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA.
Hugo GiambiniPhysiology and Biomedical Engineering, College of Medicine, Mayo Clinic, Rochester, MN, USA; Biomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, Rochester, MN, USA.
Pengfei SongPhysiology and Biomedical Engineering, College of Medicine, Mayo Clinic, Rochester, MN, USA.
Shigao ChenPhysiology and Biomedical Engineering, College of Medicine, Mayo Clinic, Rochester, MN, USA.
Nathan K LeBrasseurDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA; Physiology and Biomedical Engineering, College of Medicine, Mayo Clinic, Rochester, MN, USA.
Kai-Nan AnBiomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, Rochester, MN, USA. Electronic address: an.kainan@mayo.edu.
Mayo Clinic · USMayo Clinic in Arizona · US

Funding

Mayo Clinic Center for Translational Science ActivitiesUL1TR000135 · NCATS · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 2012 to 2015
$41.2M
Musculoskeletal Research Training ProgramT32AR056950 · NIAMS · MAYO CLINIC ROCHESTER · PI Jennifer J Westendorf · 2009 to 2026
$7.0M
Mayo Clinic Center for Translational Science ActivitiesKL2TR000136 · NCATS · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 2012 to 2015
$6.6M
Medical Scientist Traning Program at Mayo ClinicT32GM065841 · NIGMS · MAYO CLINIC ROCHESTER · PI KAUFMANN, SCOTT H, SCHIMMENTI, LISA A · 2003 to 2022
$5.8M
Mayo Clinic Center for Translational Science ActivitiesTL1TR000137 · NCATS · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 2012 to 2015
$2.1M
Quantitative evaluation of skeletal muscle passive stiffnessF30AG044075 · NIA · MAYO CLINIC ROCHESTER · PI EBY, SARAH · 2013 to 2016
$158k
NCATS NIH HHS KL2 TR000136NCATS NIH HHS TL1 TR000137NCATS NIH HHS UL1 TR000135NIAMS NIH HHS T32 AR056950NIA NIH HHS F30 AG044075NIGMS NIH HHS T32 GM065841
6 · The paper itself

Abstract

backgroundNumerous structural and compositional changes - related not only to age, but also activity level and sex - may affect skeletal muscle stiffness across the adult age-span. Measurement techniques available thus far have largely limited passive stiffness evaluations to those of entire joints and muscle-tendon units. Shear wave elastography is an increasingly popular ultrasound technique for evaluating the mechanical properties of skeletal muscle tissue. The purpose of this study was to quantify the passive stiffness, or shear modulus, of the biceps brachii throughout adulthood in flexed and extended elbow positions. We hypothesized that shear modulus would be higher in males relative to females, and with advanced age in both sexes.

methodsShear wave elastography quantified biceps brachii stiffness at 90° elbow flexion and full extension in a large sample of adults between 21 and 94 years old (n=133; 47 males).

findingsRegression analysis found sex and age were significant parameters for older adults (>60 years) in full extension. As expected, shear modulus values increased with advancing age; however, shear modulus values for females tended to be higher than those for males.

interpretationThis study begins to establish normative trends for skeletal muscle shear modulus throughout adulthood. Specifically, this work establishes for the first time that the higher passive joint torque often found in males relative to females likely relates to parameters other than muscle shear modulus. Indeed, perhaps increases in skeletal muscle passive stiffness, though potentially altering the length-tension curve, serve a protective role - maintaining the tendon-muscle-tendon length-tension curve within a functional range.

Indexed as

AdultAgedAged, 80 and overAge FactorsElasticity Imaging TechniquesElastic ModulusElbowFemaleHumansMaleMiddle AgedMuscle, SkeletalMuscle TonusRange of Motion, ArticularReference ValuesRegression AnalysisAgeElastic modulusSexShear wave elastographySkeletal muscleUltrasound

Identifiers

PMID25483294
PMCPMC4298479
OpenAlexW2090781545

What OpenQuestion holds

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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.