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Published in: BMC Musculoskeletal Disorders 1/2015

Open Access 01-12-2015 | Research article

Evidence for a general stiffening motor control pattern in neck pain: a cross sectional study

Authors: Ingebrigt Meisingset, Astrid Woodhouse, Ann- Katrin Stensdotter, Øyvind Stavdahl, Håvard Lorås, Sigmund Gismervik, Hege Andresen, Kristian Austreim, Ottar Vasseljen

Published in: BMC Musculoskeletal Disorders | Issue 1/2015

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Abstract

Background

Neck pain is associated with several alterations in neck motion and motor control. Previous studies have investigated single constructs of neck motor control, while few have applied a comprehensive set of tests to investigate cervical motor control. This comparative cross- sectional study aimed to investigate different motor control constructs in neck pain patients and healthy controls.

Methods

A total of 166 subjects participated in the study, 91 healthy controls (HC) and 75 neck pain patients (NP) with long-lasting moderate to severe neck pain. Neck flexibility, proprioception, head steadiness, trajectory movement control, and postural sway were assessed using a 3D motion tracking system (Liberty). The different constructs of neck motion and motor control were based on tests used in previous studies.

Results

Neck flexibility was lower in NP compared to HC, indicated by reduced cervical ROM and conjunct motion. Movement velocity was slower in NP compared to HC. Tests of head steadiness showed a stiffer movement pattern in NP compared to HC, indicated by lower head angular velocity. NP patients departed less from a predictable trajectory movement pattern (figure of eight) compared to healthy controls, but there was no difference for unpredictable movement patterns (the Fly test). No differences were found for postural sway in standing with eyes open and eyes closed. However, NP patients had significantly larger postural sway when standing on a balance pad. Proprioception did not differ between the groups. Largest effect sizes (ES) were found for neck flexibility (ES range: 0.2- 0.8) and head steadiness (ES range: 1.3- 2.0). Neck flexibility was the only construct that showed a significant association with current neck pain, while peak velocity was the only variable that showed a significant association with kinesiophobia.

Conclusions

NP patients showed an overall stiffer and more rigid neck motor control pattern compared to HC, indicated by lower neck flexibility, slower movement velocity, increased head steadiness and more rigid trajectory head motion patterns. Only neck flexibility showed a significant association with clinical features in NP patients.
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Metadata
Title
Evidence for a general stiffening motor control pattern in neck pain: a cross sectional study
Authors
Ingebrigt Meisingset
Astrid Woodhouse
Ann- Katrin Stensdotter
Øyvind Stavdahl
Håvard Lorås
Sigmund Gismervik
Hege Andresen
Kristian Austreim
Ottar Vasseljen
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Musculoskeletal Disorders / Issue 1/2015
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/s12891-015-0517-2

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