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dc.contributor.authorGerdle, Björn
dc.contributor.authorGrönlund, Christer
dc.contributor.authorKarlsson, J Stefan
dc.contributor.authorHoltermann, Andreas
dc.contributor.authorRoeleveld, Karin
dc.date.accessioned2015-09-21T13:05:55Z
dc.date.accessioned2016-04-15T14:12:38Z
dc.date.available2015-09-21T13:05:55Z
dc.date.available2016-04-15T14:12:38Z
dc.date.issued2010
dc.identifier.citationBMC Musculoskeletal Disorders 2010, 11nb_NO
dc.identifier.issn1471-2474
dc.identifier.urihttp://hdl.handle.net/11250/2385865
dc.description.abstractBackground: fibromyalgia 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. Methods: 27 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. Results: the 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). Conclusion: these 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.nb_NO
dc.language.isoengnb_NO
dc.publisherBioMed Centralnb_NO
dc.rightsNavngivelse 3.0 Norge*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/no/*
dc.titleAltered neuromuscular control mechanisms of the trapezius muscle in fibromyalgianb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.date.updated2015-09-21T13:05:55Z
dc.source.volume11nb_NO
dc.source.journalBMC Musculoskeletal Disordersnb_NO
dc.identifier.doi10.1186/1471-2474-11-42
dc.identifier.cristin342140
dc.description.localcode© Gerdle et al. 2010. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://​creativecommons.​org/​licenses/​by/​2.​0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.nb_NO


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