Evidence map›Paper›PMID 20205731›Full record

ArticleBMC musculoskeletal disorders2010

Altered neuromuscular control mechanisms of the trapezius muscle in fibromyalgia.

Björn Gerdle, Christer Grönlund, Stefan J Karlsson, Andreas Holtermann, Karin Roeleveld

Abstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–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

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Effects of Vertical Lifting Distance on Upper-Body Muscle Fatigue.International journal of environmental research and public health · 2021
    Article
  8. Article
  9. Article
  10. Review
  11. Physical Condition Factors that Predict a Better Quality of Life in Women with Fibromyalgia.International journal of environmental research and public health · 2019
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Fibromyalgia: A Critical and Comprehensive Review.Clinical reviews in allergy & immunology · 2015
    Review
  18. Article
  19. Article
  20. Psychological processing in chronic pain: a neural systems approach.Neuroscience and biobehavioral reviews · 2014
    Review
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

5 authors.

Björn GerdleNational Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark.
Christer Grönlund
Stefan J Karlsson
Andreas Holtermann
Karin Roeleveld

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundfibromyalgia is a relatively common condition with widespread pain and pressure allodynia, but unknown aetiology. For decades, the association between motor control strategies and chronic pain has been a topic for debate. One long held functional neuromuscular control mechanism is differential activation between regions within a single muscle. The aim of this study was to investigate differences in neuromuscular control, i.e. differential activation, between myalgic trapezius in fibromyalgia patients and healthy controls.

methods27 fibromyalgia patients and 30 healthy controls performed 3 minutes bilateral shoulder elevations with different loads (0-4 Kg) with a high-density surface electromyographical (EMG) grid placed above the upper trapezius. Differential activation was quantified by the power spectral median frequency of the difference in EMG amplitude between the cranial and caudal parts of the upper trapezius. The average duration of the differential activation was described by the inverse of the median frequency of the differential activations.

resultsthe median frequency of the differential activations was significantly lower, and the average duration of the differential activations significantly longer in fibromyalgia compared with controls at the two lowest load levels (0-1 Kg) (p < 0.04), but not at the two highest load levels (2 and 4 Kg).

conclusionthese findings illustrate a different neuromuscular control between fibromyalgia patients and healthy controls during a low load functional task, either sustaining or resulting from the chronic painful condition. The findings may have clinical relevance for rehabilitation strategies for fibromyalgia.

Indexed as

AdultBiomechanical PhenomenaComorbidityElectromyographyFemaleFibromyalgiaHumansMiddle AgedMotor NeuronsMovementMovement DisordersMuscle ContractionMuscle, SkeletalMuscle StrengthNeuromuscular JunctionRange of Motion, Articular

Identifiers

PMID20205731
PMCPMC2839982

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Registered trials

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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.