Evidence map›Paper›PMID 40208222›Full record

SynthesisScandinavian journal of work, environment & health2025

Could work-related muscle activity explain sex differences in neck pain? A meta-analysis of a pooled dataset.

Markus Koch, Lars-Kristian Lunde, Mikael Forsman, Lars Louis Andersen, Markus Due Jakobsen, Mikkel Brandt, Henrik Enquist, Gisela Sjøgaard, Karen Søgaard, Xuelong Fan and 1 more

Abstract readMeta-Analysis
In one paragraph

Synthesis in Scandinavian journal of work, environment & health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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.

Markus KochNational Institute of Occupational Health, Research group for Work Psychology and Physiology, Gydas vei 8, 0361 Oslo, Norway. Markus.Koch@stami.no.
Lars-Kristian Lunde
Mikael Forsman
Lars Louis Andersen
Markus Due Jakobsen
Mikkel Brandt
Henrik Enquist
Gisela Sjøgaard
Karen Søgaard
Xuelong Fan
Kaj Bo Veiersted

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesSustained activity of the upper trapezius muscle during work has been linked to the development of neck pain. Women have higher occurrences of neck pain than men, even in the same occupations. This study aimed to investigate sex-specific associations between upper trapezius muscle activity time-related variables and neck pain using a meta-analysis of pooled data.

methodsSeven Scandinavian research institutes provided surface electromyographic (EMG) data on the upper trapezius muscle activity during work and related questionnaire-based data on neck pain severity. EMG and questionnaire data were harmonized and pooled. Associations between upper trapezius muscle activity variables [median muscle activity, frequency of muscular rest periods, and periods with sustained muscle activity (SUMA)] and neck pain severity were investigated separately for women (N=293) and men (N=418) using linear regression analyses.

resultsIn the cross-sectional analyses, women showed significant positive associations between the number of short SUMA periods and negative associations for long SUMA periods in regard to neck pain severity. In the longitudinal analyses, women showed no significant associations. In the cross-sectional analysis for men, one significant positive association was found between median upper trapezius muscle activity and neck pain severity.

conclusionsCompared to men, neck pain severity among women appears to be more dependent on upper trapezius muscle activity patterns at work. Therefore, ergonomic and organizational recommendations for work should be sex-specific or adjusted for women to reduce their prevalence of neck pain. Further research is needed to elucidate the underlying mechanisms of these sex differences.

Indexed as

Neck PainOccupational DiseasesSuperficial Back MusclesAdultCross-Sectional StudiesElectromyographyFemaleHumansMaleMiddle AgedSex FactorsSurveys and Questionnaires

Identifiers

PMID40208222
PMCPMC12282473

What OpenQuestion 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 OpenQuestion graph.