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Use of muscle functional magnetic resonance imaging to compare cervical flexor activity between patients with whiplash-associated disorders and people who are healthy

Barbara Cagnie UGent, Mieke Dolphens UGent, Ian Peeters UGent, Eric Achten UGent, Dirk Cambier UGent and Lieven Danneels UGent (2010) PHYSICAL THERAPY. 90(8). p.1157-1164
abstract
Background. Chronic whiplash-associated disorders (WAD) have been shown to be associated with motor dysfunction. Increased electromyographic (EMG) activity in neck and shoulder girdle muscles has been demonstrated during different tasks in participants with persistent WAD. Muscle functional magnetic resonance imaging (rnfMRI) is an innovative technique to evaluate muscle activity and differential recruitment of deep and superficial muscles following exercise. Objective. The purpose of this study was to compare the recruitment pattern of deep and superficial neck flexors between patients with WAD and controls using mfMRI. Design. A cross-sectional design was used. Method. The study was conducted in a physical and rehabilitation medicine department. The participants were 19 controls who were healthy (10 men, 9 women; mean [+/- SD] age = 22.2 +/- 0.6 years) and 16 patients with WAD (5 men, 11 women; mean [+/- SD] age = 32.9 +/- 12.7 years). The T2 values were calculated for the longus coil (Lco), longus capitis (Lca), and stemocleidomastoicl (SCM) muscles at rest and following cranio-cervical flexion (CCF). Results. In the overall statistical model for T2 shift, there was a significant main effect for muscle (F = 3.906, P = .033) but not for group (F = 2.855, P = .101). The muscle X group interaction effect was significant (F = 3.618, P = .041). Although not significant, there was a strong trend for lesser Lco (P = .061) and Lca (P = .060) activity for the WAD group compared with the control group. Although the SCM showed higher T2 shifts, this difference was not significant (P = .291). Limitations. Although mfMRI is an innovative and useful technique for the evaluation of deep cervical muscles, consideration is required, as this method encompasses a postexercise evaluation and is limited to resistance types of exercises. Conclusions. Muscle functional magnetic resonance imaging demonstrated a difference in muscle recruitment between the Lco, Lca, and SCM during CCF in the control group, but failed to demonstrate a changed activity pattern in the WAD group compared with the control group. The mild symptoms in the WAD group and the wide variability in T2 values may explain the lack of significance.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (proceedingsPaper)
publication status
published
subject
keyword
SKELETAL-MUSCLE, EXERCISE INTENSITY, NECK PAIN, CRANIOCERVICAL FLEXION TEST, PROTON T2, JOINT POSITION ERROR, DEEP, PERFORMANCE, INJURY, LUMBAR MULTIFIDUS
journal title
PHYSICAL THERAPY
Phys. Ther.
volume
90
issue
8
pages
1157 - 1164
conference name
17th Congress of the International Society of Electrophysiology and Kinesiology
conference location
Aalborg, Denmark
conference start
2010-06-16
conference end
2010-06-19
Web of Science type
Article; Proceedings Paper
Web of Science id
000280542800006
JCR category
REHABILITATION
JCR impact factor
2.645 (2010)
JCR rank
3/42 (2010)
JCR quartile
1 (2010)
ISSN
0031-9023
DOI
10.2522/ptj.20090351
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
986948
handle
http://hdl.handle.net/1854/LU-986948
date created
2010-06-25 11:55:49
date last changed
2015-06-17 11:26:58
@article{986948,
  abstract     = {Background. Chronic whiplash-associated disorders (WAD) have been shown to be associated with motor dysfunction. Increased electromyographic (EMG) activity in neck and shoulder girdle muscles has been demonstrated during different tasks in participants with persistent WAD. Muscle functional magnetic resonance imaging (rnfMRI) is an innovative technique to evaluate muscle activity and differential recruitment of deep and superficial muscles following exercise.
Objective. The purpose of this study was to compare the recruitment pattern of deep and superficial neck flexors between patients with WAD and controls using mfMRI.
Design. A cross-sectional design was used.
Method. The study was conducted in a physical and rehabilitation medicine department. The participants were 19 controls who were healthy (10 men, 9 women; mean [+/- SD] age = 22.2 +/- 0.6 years) and 16 patients with WAD (5 men, 11 women; mean [+/- SD] age = 32.9 +/- 12.7 years). The T2 values were calculated for the longus coil (Lco), longus capitis (Lca), and stemocleidomastoicl (SCM) muscles at rest and following cranio-cervical flexion (CCF).
Results. In the overall statistical model for T2 shift, there was a significant main effect for muscle (F = 3.906, P = .033) but not for group (F = 2.855, P = .101). The muscle X group interaction effect was significant (F = 3.618, P = .041). Although not significant, there was a strong trend for lesser Lco (P = .061) and Lca (P = .060) activity for the WAD group compared with the control group. Although the SCM showed higher T2 shifts, this difference was not significant (P = .291).
Limitations. Although mfMRI is an innovative and useful technique for the evaluation of deep cervical muscles, consideration is required, as this method encompasses a postexercise evaluation and is limited to resistance types of exercises.
Conclusions. Muscle functional magnetic resonance imaging demonstrated a difference in muscle recruitment between the Lco, Lca, and SCM during CCF in the control group, but failed to demonstrate a changed activity pattern in the WAD group compared with the control group. The mild symptoms in the WAD group and the wide variability in T2 values may explain the lack of significance.},
  author       = {Cagnie, Barbara and Dolphens, Mieke and Peeters, Ian and Achten, Eric and Cambier, Dirk and Danneels, Lieven},
  issn         = {0031-9023},
  journal      = {PHYSICAL THERAPY},
  keyword      = {SKELETAL-MUSCLE,EXERCISE INTENSITY,NECK PAIN,CRANIOCERVICAL FLEXION TEST,PROTON T2,JOINT POSITION ERROR,DEEP,PERFORMANCE,INJURY,LUMBAR MULTIFIDUS},
  language     = {eng},
  location     = {Aalborg, Denmark},
  number       = {8},
  pages        = {1157--1164},
  title        = {Use of muscle functional magnetic resonance imaging to compare cervical flexor activity between patients with whiplash-associated disorders and people who are healthy},
  url          = {http://dx.doi.org/10.2522/ptj.20090351},
  volume       = {90},
  year         = {2010},
}

Chicago
Cagnie, Barbara, Mieke Dolphens, Ian Peeters, Eric Achten, Dirk Cambier, and Lieven Danneels. 2010. “Use of Muscle Functional Magnetic Resonance Imaging to Compare Cervical Flexor Activity Between Patients with Whiplash-associated Disorders and People Who Are Healthy.” Physical Therapy 90 (8): 1157–1164.
APA
Cagnie, Barbara, Dolphens, M., Peeters, I., Achten, E., Cambier, D., & Danneels, L. (2010). Use of muscle functional magnetic resonance imaging to compare cervical flexor activity between patients with whiplash-associated disorders and people who are healthy. PHYSICAL THERAPY, 90(8), 1157–1164. Presented at the 17th Congress of the International Society of Electrophysiology and Kinesiology.
Vancouver
1.
Cagnie B, Dolphens M, Peeters I, Achten E, Cambier D, Danneels L. Use of muscle functional magnetic resonance imaging to compare cervical flexor activity between patients with whiplash-associated disorders and people who are healthy. PHYSICAL THERAPY. 2010;90(8):1157–64.
MLA
Cagnie, Barbara, Mieke Dolphens, Ian Peeters, et al. “Use of Muscle Functional Magnetic Resonance Imaging to Compare Cervical Flexor Activity Between Patients with Whiplash-associated Disorders and People Who Are Healthy.” PHYSICAL THERAPY 90.8 (2010): 1157–1164. Print.