Lower back pain and healthy subjects exhibit distinct lower limb perturbation response strategies: a preliminary study
File(s)MSperry_JBMR_Final.docx (6.74 MB)
Accepted version
Author(s)
Sperry, Megan M
Phillips, Andrew TM
McGregor, Alison H
Type
Journal Article
Abstract
BACKGROUND: It is hypothesized that inherent differences in movement strategies exist between control subjects and those with a history of lower back pain (LBP). Previous motion analysis studies focus primarily on tracking spinal movements, neglecting the connection between the lower limbs and spinal function. Lack of knowledge surrounding the functional implications of LBP may explain the diversity in success from general treatments currently offered to LBP patients. OBJECTIVE: This pilot study evaluated the response of healthy controls and individuals with a history of LBP (hLBP) to a postural disturbance. METHODS: Volunteers (n= 26) were asked to maintain standing balance in response to repeated balance disturbances delivered via a perturbation platform while both kinematic and electromyographic data were recorded from the trunk, pelvis, and lower limb. RESULTS: The healthy cohort utilized an upper body-focused strategy for balance control, with substantial activation of the external oblique muscles. The hLBP cohort implemented a lower limb-focused strategy, relying on activation of the semitendinosus and soleus muscles. No significant differences in joint range of motion were identified. CONCLUSIONS: These findings suggest that particular reactive movement patterns may indicate muscular deficits in subjects with hLBP. Identification of these deficits may aid in developing specific rehabilitation programs to prevent future LBP recurrence.
Date Issued
2019-01-24
Date Acceptance
2018-06-25
Citation
Journal of Back and Musculoskeletal Rehabilitation, 2019, 32 (1), pp.27-35
ISSN
1053-8127
Publisher
IOS Press
Start Page
27
End Page
35
Journal / Book Title
Journal of Back and Musculoskeletal Rehabilitation
Volume
32
Issue
1
Copyright Statement
© 2018 – IOS Press and the authors. All rights reserved.
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/30056411
PII: BMR170808
Subjects
Lower back pain
balance
electromyography
kinematics
posture
Publication Status
Published
Coverage Spatial
Netherlands
Date Publish Online
2018-07-23