Evidence map›Paper›PMID 25046255›Full record

ArticleMagnetic resonance in medicine2015

Age-related differences in strain rate tensor of the medial gastrocnemius muscle during passive plantarflexion and active isometric contraction using velocity encoded MR imaging: potential index of lateral force transmission.

Usha Sinha, Vadim Malis, Robert Csapo, Ali Moghadasi, Ryuta Kinugasa, Shantanu Sinha

Abstract read
In one paragraph

Article in Magnetic resonance in medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

31 citing papers in PubMed.

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  14. Sarcopenia: how to measure, when and why.La Radiologia medica · 2022
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Usha SinhaPhysics Department, San Diego State University, San Diego, California, USA.
Vadim Malis
Robert Csapo
Ali Moghadasi
Ryuta Kinugasa
Shantanu Sinha

Funding

In-vivo MR Tractography and FEM Study of Human Lower LegR01AR053343 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SINHA, SHANTANU · 2006 to 2014
$3.5M
NIAMS NIH HHS 5R01-AR-053343-07NIAMS NIH HHS R01 AR053343
6 · The paper itself

Abstract

purposeThe strain rate (SR) tensor measures the principal directions and magnitude of the instantaneous deformation; this study aims to track age-related changes in the 2D SR tensor in the medial gastrocnemius during passive joint rotation and active isometric contraction.

methodsSR tensors were derived from velocity encoded magnetic resonance phase-contrast images in nine young (28 years) and eight senior (78 years) women. Strain rates along and in the cross-section of the fiber were calculated from the SR tensor and used to derive the out-plane SR. Age-related and regional differences in the SR eigenvalues, orientation, and the angle between the SR and muscle fiber (SR-fiber angle) were statistically analyzed.

resultsSR along the fiber was significantly different between the cohorts during isometric contraction with higher values in the young (P < 0.05). The SR-fiber angle was larger in the young for both motion types but this difference was not statistically significant. Significant regional differences in the SR indices was seen in passive joint rotation (P < 0.05) for both cohorts.

conclusionSR mapping reflects age-related and regional differences during active and passive motion respectively; this may arise from differences in contractility (active motion) and elastic properties (active and passive motion).

Indexed as

AdultAgedAgingBiomechanical PhenomenaFemaleHumansImage Interpretation, Computer-AssistedIsometric ContractionMagnetic Resonance ImagingMuscle, SkeletalMuscle Stretching ExercisesRange of Motion, Articularmuscle strain rate tensorstrain rate and fiber directionvelocity encoded MRI

Identifiers

PMID25046255
PMCPMC4287463

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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.