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Altered ventral neck muscle deformation for individuals with whiplash associated disorder compared to healthy controls: A case-control ultrasound study
Eskilstuna, Sweden; Linköping, Sweden.
Karolinska Institutet, Sweden; Karolinska University Hospital, Sweden.
Linköping, Sweden.
Umeå University, Faculty of Science and Technology, Department of Chemistry. (Computational Life Science Cluster)
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2015 (English)In: Manual Therapy, ISSN 1356-689X, E-ISSN 1532-2769, Vol. 20, no 2, 319-327 p.Article in journal (Refereed) Published
Abstract [en]

Previous studies have shown altered neck muscle function in individuals with chronic whiplash associated disorder (WAD). However, we lack real-time investigations with non-invasive methods that can distinguish between the different ventral neck muscle layers. This study investigated deformations and deformation rates in the sternocleidomastoid (SCM), longus capitis (Lcap), and longus colli (Lco) muscles with real-time ultrasonography. Twenty-six individuals with WAD were compared with 26 controls, matched for age and sex. Ultrasound imaging of the SCM, Lcap, and Lco were recorded during 10 repetitive arm elevations. The first and tenth arm elevations were post-process analyzed with speckle tracking. There were few significant differences in the deformations or deformation rates in the SCM, Lcap, and Lco between the WAD and control group. In controls, deformations and deformation rates showed linear positive relationships between SCM/Lcap, SCM/Lco, and Lcap/Lco which increased from the first arm elevation (R-2 = 0.14-0.70); to the tenth arm elevation (R-2 = 0.51-0.71). The WAD group showed similar or weaker linear relationship (R-2 < 0.19) during the tenth compared to the first (R-2 < 0.44) arm elevation except for deformations in Lcap/Lco (R-2 = 0.13-0.57). This result indicated that deformations and deformation rates in one muscle were correlated by similar deformations and deformation rates in other neck muscles in the control group, but this interplay between muscles was not found in the WAD group. (C) 2014 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 20, no 2, 319-327 p.
Keyword [en]
Whiplash injury, Ultrasonography, Neck muscles
National Category
Public Health, Global Health, Social Medicine and Epidemiology
URN: urn:nbn:se:umu:diva-103160DOI: 10.1016/j.math.2014.10.006ISI: 000352769200013PubMedID: 25454684OAI: diva2:815253
Available from: 2015-05-29 Created: 2015-05-18 Last updated: 2015-05-29Bibliographically approved

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Nilsson, DavidTrygg, JohanPeolsson, Michael
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