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Morphological changes in the cervical muscles of women with chronic whiplash can be modified with exercise-A pilot
Shaun O'leary1,2, Gwendolen Jull1, Luke Van Wyk1
1Centre for Clinical Research Excellence in Spinal Pain, Injury and Health, Division of Physiotherapy, The University of Queensland, Brisbane, Queensland, 4072, Australia.
Introduction:
In this preliminary study we determined whether MRI markers of cervical muscle degeneration [elevated muscle fatty infiltration (MFI), cross-sectional area (CSA), and reduced relative muscle CSA (rmCSA)] could be modified with exercise in patients with chronic whiplash.
Methods:
Five women with chronic whiplash undertook 10 weeks of neck exercise. MRI measures of the cervical multifidus (posterior) and longus capitus/colli (anterior) muscles, neck muscle strength, and self-reported neck disability were recorded at baseline and at completion of the exercise program.
Results:
Overall significant increases in CSA and rmCSA were observed for both muscles, but significant reductions in MFI were only evident in the cervical multifidus muscle. These changes coincided with increased muscle strength and reduced neck disability.
Conclusions:
MRI markers of muscle morphology in individuals with chronic whiplash appear to be modifiable with exercise.
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