Shaun O'leary1,2, Gwendolen Jull1, Luke Van Wyk1, Ashley Pedler3, James Elliott4,5. 1. Centre for Clinical Research Excellence in Spinal Pain, Injury and Health, Division of Physiotherapy, The University of Queensland, Brisbane, Queensland, 4072, Australia. 2. Physiotherapy Department, Royal Brisbane and Womens Hospital, Herston, Brisbane, Queensland, Australia. 3. Centre for National Research on Disability and Rehabilitation Medicine, The University of Queensland, Herston, Queensland, Australia. 4. Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA. 5. School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Queensland, Australia.
Abstract
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.
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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