du Rose, A. and Breen, A. C., 2016. Relationships between paraspinal muscle activity and lumbar inter-vertebral range of motion. Healthcare, 4 (1), 4-.
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Official URL: http://www.mdpi.com/
DOI: 10.3390/healthcare4010004
Abstract
Abstract: Control of the lumbar spine requires contributions from both the active and passive sub-systems. Identifying interactions between these systems may provide insight into the mechanisms of low back pain. However, as a first step it is important to investigate what is normal. The purpose of this study was to explore the relationships between the lumbar inter-vertebral range of motion and paraspinal muscle activity during weight-bearing flexion in healthy controls using quantitative fluoroscopy (QF) and surface electromyography (sEMG). Contemporaneous lumbar sEMG and QF motion sequences were recorded during controlled active flexion of 60° using electrodes placed over Longissimus thoracis pars thoracis (TES), Longissimus thoracis pars lumborum (LES) and Multifidus (LMU). Normalised RMS sEMG amplitude data were averaged over 5 epochs, and the change in amplitude between epochs was calculated. The sEMG ratios of LMU/LES LMU/TES and LES/TES were also determined. QF was used to measure the maximum inter-vertebral range of motion from L2-S1, and correlation coefficients were calculated between sEMG amplitude variables and these measurements. Intra- and inter-session sEMG amplitude repeatability was also assessed for all 3 paraspinal muscles. The sEMG amplitude measurements were highly repeatable, and sEMG amplitude changes correlated significantly with L4-5 and L5-S1 IV-RoMmax (r = -0.47 to 0.59). The sEMG amplitude ratio of LES/TES also correlated with L4-L5 IV-RoMmax (r = -0.53). The OPEN ACCESS Healthcare 2015, 3 2 relationships found may be important when planning surgery or considering rehabilitation for low back pain.
Item Type: | Article |
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ISSN: | 1062-0257 |
Uncontrolled Keywords: | spine kinematics; fluoroscopy; surface electromyography; reliability; agreement |
Group: | Faculty of Science & Technology |
ID Code: | 23431 |
Deposited By: | Symplectic RT2 |
Deposited On: | 20 Apr 2016 09:11 |
Last Modified: | 14 Mar 2022 13:55 |
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