Evidence map›Paper›PMID 33278002›Full record

ArticleInternational archives of occupational and environmental health2021

Can a metric combining arm elevation and trapezius muscle activity predict neck/shoulder pain? A prospective cohort study in construction and healthcare.

Suzanne Lerato Merkus, Svend Erik Mathiassen, Lars-Kristian Lunde, Markus Koch, Morten Wærsted, Mikael Forsman, Stein Knardahl, Kaj Bo Veiersted

Open access · hybridAbstract read
In one paragraph

Article in International archives of occupational and environmental health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 27% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

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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

8 authors at 3 institutions in 2 countries.

Suzanne Lerato MerkusNational Institute of Occupational Health, Oslo, Norway. suzanne.merkus@stami.no.ORCID http://orcid.org/0000-0003-0945-3738
Svend Erik MathiassenCentre for Musculoskeletal Research, Department of Occupational and Public Health Sciences, University of Gävle, Gävle, Sweden.ORCID http://orcid.org/0000-0003-1443-6211
Lars-Kristian LundeNational Institute of Occupational Health, Oslo, Norway.ORCID http://orcid.org/0000-0001-6219-9244
Markus KochNational Institute of Occupational Health, Oslo, Norway.
Morten WærstedNational Institute of Occupational Health, Oslo, Norway.ORCID http://orcid.org/0000-0002-9570-2181
Mikael ForsmanSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Huddinge, Sweden.ORCID http://orcid.org/0000-0001-5777-4232
Stein KnardahlNational Institute of Occupational Health, Oslo, Norway.ORCID http://orcid.org/0000-0002-7300-8519
Kaj Bo VeierstedNational Institute of Occupational Health, Oslo, Norway.ORCID http://orcid.org/0000-0003-1221-384X
National Institute of Occupational Health · NOKarolinska Institutet · SEUniversity of Gävle · SE

Funding

Norges Forskningsråd 218358
6 · The paper itself

Abstract

objectiveTo determine whether a composite metric of arm elevation and trapezius activity (i.e. neck/shoulder load) is more strongly associated with the 2-year course of neck and shoulder pain intensity (NSPi) among construction and healthcare workers than each exposure separately.

methodsDominant arm elevation and upper trapezius muscle activity were estimated in construction and healthcare employees (n = 118) at baseline, using accelerometry and normalized surface electromyography (%MVE), respectively. At baseline and every 6 months for 2 years, workers reported NSPi (score 0-3). Compositions of working time were determined for arm elevation (< 30°; 30-60°;  > 60°), trapezius activity (< 0.5%; 0.5-7.0%; > 7.0%MVE), and a composite metric "neck/shoulder load" (restitution, low, medium, and high load). Associations between each of these three compositions and the 2-year course of NSPi were determined using linear mixed models.

resultsAssociations between exposure compositions and the course of NSPi were all weak and in general uncertain. Time spent in 0.5-7.0%MVE showed the largest and most certain association with changes in NSPi during follow-up (β = - 0.13; p = 0.037; corresponding to a -0.01 change in NPSi every 6 months). Among pain-free workers at baseline, medium (β = - 0.23; p = 0.039) and high (β = 0.15; p = 0.031) neck/shoulder load contributed the most to explaining changes in NSPi.

conclusionThe composite metric of neck/shoulder load did not show a stronger association with the course of NSPi than arm elevation or trapezius activity alone in the entire population, while some indications of a stronger association were found among those who were pain-free at baseline.

Indexed as

AccelerometryAdultBiomechanical PhenomenaCohort StudiesConstruction IndustryFemaleHealth PersonnelHumansMaleMiddle AgedNeck PainNorwayOccupational DiseasesProspective StudiesShoulder PainSuperficial Back MusclesActigraphyCompositional data analysisElectromyographyMusculoskeletal painNeck/shoulder loadPhysically demanding work

Identifiers

PMID33278002
PMCPMC8068682
OpenAlexW3107180763

What Socratic holds

Textmetadata
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 Socratic graph.