Evidence map›Paper›PMID 33731070›Full record

ArticleBMC musculoskeletal disorders2021

Extended field-of-view ultrasound imaging is reliable for measuring Transversus Abdominis muscle size at rest and during contraction.

A Wayne Johnson, Lauren Adams, Jade B Kho, Daniel M Green, Nicolas B Pace, Ulrike H Mitchell

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Article in BMC musculoskeletal disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

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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

6 authors.

A Wayne JohnsonDepartment of Exercise Sciences, Brigham Young University, 106 Smith Fieldhouse, Provo, UT, 84602, USA. Wayne_johnson@byu.edu.ORCID https://orcid.org/0000-0002-2207-5826
Lauren AdamsDepartment of Exercise Sciences, Brigham Young University, 106 Smith Fieldhouse, Provo, UT, 84602, USA.
Jade B KhoDepartment of Exercise Sciences, Brigham Young University, 106 Smith Fieldhouse, Provo, UT, 84602, USA.
Daniel M GreenDepartment of Exercise Sciences, Brigham Young University, 106 Smith Fieldhouse, Provo, UT, 84602, USA.
Nicolas B PaceDepartment of Exercise Sciences, Brigham Young University, 106 Smith Fieldhouse, Provo, UT, 84602, USA.
Ulrike H MitchellDepartment of Exercise Sciences, Brigham Young University, 106 Smith Fieldhouse, Provo, UT, 84602, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe strength and size of core muscles, including the abdominal muscles, are crucial to proper function in most activities. Therefore, it is important to reliably assess these characteristics. Our primary objective was to determine if the length, thickness and cross-sectional area of the transversus abdominis (TrA) can be visualized independently from the internal and external abdominal oblique muscles using extended field of view ultrasound imaging at rest and with contraction and to establish its intra- and inter-tester reliability.

methodsTwenty-six individuals were recruited to participate in the study (20 F, 6 M), average age 24.0 years (SD 9.4), height 170.7 cm (SD 8.6) and weight 63.9 kg (SD 9.0). From this total number of participants, two groups of 16 randomly selected participants were assessed to determine intra- and inter-tester reliability respectively. Extended field of view ultrasound images were obtained at three vertebral levels during rest and contraction in the side lying position for both the right and left sides of the trunk.

resultsExcellent intra-tester and inter-tester reliability was seen (ICC range of 0.972 to 0.984). The overall average percent standard error of the measurement for all measurements and locations was approximately 4%. The overall average minimal difference for the thickness measurement for the resting and contraction conditions combined were as follows: intratester 0.056 (0.014) cm and intertester 0.054 (0.017) cm, for area intratester 0.287 (0.086) cm

conclusionsExtended field of view ultrasound imaging is an effective method of reliably capturing clear images of the TrA during rest and contraction. It provides an efficient mechanism for the analysis of muscle morphology by being able to measure the cross-sectional area, thickness, and length on one image. This methodology is recommended for studies investigating TrA function and training.

Indexed as

Abdominal MusclesMuscle ContractionAdultHumansReproducibility of ResultsTorsoUltrasonographyYoung AdultAbdominal musclesEFOVMeasurement errorMinimal detectable differencePanoramic ultrasound imaging

Identifiers

PMID33731070
PMCPMC7968206

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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.