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Co-contraction characteristics of lumbar muscles in patients with lumbar disc herniation during different types of movement
- Source :
- BioMedical Engineering OnLine, Vol 17, Iss 1, Pp 1-20 (2018), BioMedical Engineering
- Publication Year :
- 2018
- Publisher :
- BMC, 2018.
-
Abstract
- Background Muscular performance is an important factor for the mechanical stability of lumbar spine in humans, in which, the co-contraction of lumbar muscles plays a key role. We hypothesized that when executing different daily living motions, the performance of the lumbar muscle co-contraction stabilization mechanism varies between patients with lumbar disc herniation (LDH) and healthy controls. Hence, in this study, co-contraction performance of lumbar muscles between patients with LDH and healthy subjects was explored to check if there are significant differences between the two groups when performing four representative movements. Methods Twenty-six LDH patients (15 females, 11 males) and a control group of twenty-eight subjects (16 females, 12 males) were recruited. Surface electromyography (EMG) signals were recorded from the external oblique, lumbar multifidus, and internal oblique/transversus abdominis muscles during the execution of four types of movement, namely: forward bending, backward bending, left lateral flexion and right lateral flexion. The acquired EMG signals were segmented, and wavelet decomposition was performed followed by reconstruction of the low-frequency components of the signal. Then, the reconstructed signals were used for further analysis. Co-contraction ratio was employed to assess muscle coordination and compare it between the LDH patients and healthy controls. The corresponding signals of the subjects in the two groups were compared to evaluate the differences in agonistic and antagonistic muscle performance during the different motions. Also, sample entropy was applied to evaluate complexity changes in lumbar muscle recruitment during the movements. Results Significant differences between the LDH and control groups were found in the studied situations (p
- Subjects :
- Adult
Male
lcsh:Medical technology
Entropy
Movement
Biomedical Engineering
Electromyography
Lumbar vertebrae
Biomaterials
03 medical and health sciences
0302 clinical medicine
Lumbar
medicine
Lumbar muscle activity
Humans
Radiology, Nuclear Medicine and imaging
Muscle, Skeletal
Lumbar Vertebrae
Radiological and Ultrasound Technology
medicine.diagnostic_test
business.industry
Research
Signal Processing, Computer-Assisted
030229 sport sciences
General Medicine
Anatomy
Middle Aged
Co-contraction ratio
Motor coordination
Sample entropy
medicine.anatomical_structure
Lumbar spine
lcsh:R855-855.5
Case-Control Studies
Intervertebral Disc Displacement
Motor unit recruitment
Lumbar disc herniation
Female
medicine.symptom
business
030217 neurology & neurosurgery
Muscle Contraction
Muscle contraction
Subjects
Details
- Language :
- English
- Volume :
- 17
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- BioMedical Engineering OnLine
- Accession number :
- edsair.doi.dedup.....d47c59cf2d833c0900c6109e84d4f759