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Evaluation of neck muscle size: long-term reliability and comparison of methods

Belavý, D.L., Miokovic, T., Armbrecht, G. and Felsenberg, D. 2015, Evaluation of neck muscle size: long-term reliability and comparison of methods, Physiological measurement, vol. 36, no. 3, pp. 503-512, doi: 10.1088/0967-3334/36/3/503.

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Title Evaluation of neck muscle size: long-term reliability and comparison of methods
Author(s) Belavý, D.L.ORCID iD for Belavý, D.L. orcid.org/0000-0002-9307-832X
Miokovic, T.
Armbrecht, G.
Felsenberg, D.
Journal name Physiological measurement
Volume number 36
Issue number 3
Start page 503
End page 512
Total pages 20
Publisher IOP Press
Place of publication London, Eng.
Publication date 2015
ISSN 1361-6579
Keyword(s) cross-sectional area
intra-class correlation coefficient
precision
Science & Technology
Life Sciences & Biomedicine
Technology
Biophysics
Engineering, Biomedical
Physiology
Engineering
BED-REST
AGREEMENT
HEADACHE
Summary Although it is important for prospective studies, the reliability of quantitative measures of cervical muscle size on magnetic resonance imaging is not well established. The aim of the current work was to assess the long-term reliability of measurements of cervical muscle size. In addition, we examined the utility of selecting specific sub-regions of muscles at each vertebral level, averaging between sides of the body, and pooling muscles into larger groups. Axial scans from the base of skull to the third thoracic vertebra were performed in 20 healthy male subjects at baseline and 1.5 years later. We evaluated the semi-spinalis capitis, splenius capitis, spinalis cervicis, longus capitis, longus colli, levator scapulae, sternocleidomastoid, anterior scalenes and middle with posterior scalenes. Bland-Altman analysis showed all measurements to be repeatable between testing-days. Reliability was typically best when entire muscle volume was measured (co-efficients of variation (CVs): 3.3-8.1% depending on muscle). However, when the size of the muscle was assessed at specific vertebral levels, similar measurement precision was achieved (CVs: 2.7-7.6%). A median of 4-6 images were measured at the specific vertebral levels versus 18-37 images for entire muscle volume. This would represent considerable time saving. Based on the findings we also recommend measuring both sides of the body and calculating an average value. Pooling specific muscles into the deep neck flexors (CV: 3.5%) and neck extensors (CV: 2.7%) can serve to reduce variability further. The results of the current study help to establish outcome measures for interventional studies and for sample size estimation.
Language eng
DOI 10.1088/0967-3334/36/3/503
Field of Research 110699 Human Movement and Sports Science not elsewhere classified
Socio Economic Objective 929999 Health not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Institute of Physics and Engineering in Medicine
Persistent URL http://hdl.handle.net/10536/DRO/DU:30076270

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