Relationships between muscle electrical activity and the control of inter-vertebral motion during a forward bending task
Authors: du Rose, A., Breen, A. and Breen, A.
Journal: Journal of Electromyography and Kinesiology
Volume: 43
Pages: 48-54
eISSN: 1873-5711
ISSN: 1050-6411
DOI: 10.1016/j.jelekin.2018.08.004
Abstract:Muscle strengthening exercises are commonly used in primary care for the treatment of chronic, non-specific low back pain (CNSLBP) as it has been theorised that increased muscle activity contributes to the stabilisation of inter-vertebral motion segments during bending and other spinal movements, however this has never been demonstrated in vivo. This study used contemporaneous quantitative fluoroscopy (QF) and surface electromyography (sEMG) to investigate relationships between continuous inter-vertebral motion variables and muscle electrical activity in the lumbar multifidus (LMU), lumbar and thoracic erector spinae (LES and TES) during standardised lumbar flexion and return in 18 healthy male human subjects. Our results demonstrated that the variability in the sharing of angular motion (i.e. Motion Share Variability MSV) and motion segment laxity during a bending task were significantly (p < 0.05) negatively correlated (Spearman) with muscle electrical activity throughout the participant bend for both locally and globally acting muscle groups. MSV was also strongly correlated with L2-3 laxity. The former suggests a damping mechanism reducing irregular displacements (i.e. less variability in the sharing of segmental motion) during bending and an action of spinal stabilisation by muscles at segmental levels, and the latter a synergy between laxity at L2-3 and MSV. While this has previously been theorised, it has never been shown in vivo at the inter-vertebral level. These assessments may be considered for use in validation studies of exercise programs for CNSLBP, however further replication is required.
https://eprints.bournemouth.ac.uk/31157/
Source: Scopus
Relationships between muscle electrical activity and the control of inter-vertebral motion during a forward bending task.
Authors: du Rose, A., Breen, A. and Breen, A.
Journal: J Electromyogr Kinesiol
Volume: 43
Pages: 48-54
eISSN: 1873-5711
DOI: 10.1016/j.jelekin.2018.08.004
Abstract:Muscle strengthening exercises are commonly used in primary care for the treatment of chronic, non-specific low back pain (CNSLBP) as it has been theorised that increased muscle activity contributes to the stabilisation of inter-vertebral motion segments during bending and other spinal movements, however this has never been demonstrated in vivo. This study used contemporaneous quantitative fluoroscopy (QF) and surface electromyography (sEMG) to investigate relationships between continuous inter-vertebral motion variables and muscle electrical activity in the lumbar multifidus (LMU), lumbar and thoracic erector spinae (LES and TES) during standardised lumbar flexion and return in 18 healthy male human subjects. Our results demonstrated that the variability in the sharing of angular motion (i.e. Motion Share Variability MSV) and motion segment laxity during a bending task were significantly (p < 0.05) negatively correlated (Spearman) with muscle electrical activity throughout the participant bend for both locally and globally acting muscle groups. MSV was also strongly correlated with L2-3 laxity. The former suggests a damping mechanism reducing irregular displacements (i.e. less variability in the sharing of segmental motion) during bending and an action of spinal stabilisation by muscles at segmental levels, and the latter a synergy between laxity at L2-3 and MSV. While this has previously been theorised, it has never been shown in vivo at the inter-vertebral level. These assessments may be considered for use in validation studies of exercise programs for CNSLBP, however further replication is required.
https://eprints.bournemouth.ac.uk/31157/
Source: PubMed
Relationships between muscle electrical activity and the control of inter-vertebral motion during a forward bending task
Authors: du Rose, A., Breen, A. and Breen, A.
Journal: JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
Volume: 43
Pages: 48-54
eISSN: 1873-5711
ISSN: 1050-6411
DOI: 10.1016/j.jelekin.2018.08.004
https://eprints.bournemouth.ac.uk/31157/
Source: Web of Science (Lite)
Relationships between muscle electrical activity and the control of inter-vertebral motion during a forward bending task
Authors: Du Rose, A., Breen, A. and Breen, A.
Journal: Journal of Electromyography and Kinesiology
Publisher: Elsevier
https://eprints.bournemouth.ac.uk/31157/
Source: Manual
Relationships between muscle electrical activity and the control of inter-vertebral motion during a forward bending task.
Authors: du Rose, A., Breen, A. and Breen, A.
Journal: Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology
Volume: 43
Pages: 48-54
eISSN: 1873-5711
ISSN: 1050-6411
DOI: 10.1016/j.jelekin.2018.08.004
Abstract:Muscle strengthening exercises are commonly used in primary care for the treatment of chronic, non-specific low back pain (CNSLBP) as it has been theorised that increased muscle activity contributes to the stabilisation of inter-vertebral motion segments during bending and other spinal movements, however this has never been demonstrated in vivo. This study used contemporaneous quantitative fluoroscopy (QF) and surface electromyography (sEMG) to investigate relationships between continuous inter-vertebral motion variables and muscle electrical activity in the lumbar multifidus (LMU), lumbar and thoracic erector spinae (LES and TES) during standardised lumbar flexion and return in 18 healthy male human subjects. Our results demonstrated that the variability in the sharing of angular motion (i.e. Motion Share Variability MSV) and motion segment laxity during a bending task were significantly (p < 0.05) negatively correlated (Spearman) with muscle electrical activity throughout the participant bend for both locally and globally acting muscle groups. MSV was also strongly correlated with L2-3 laxity. The former suggests a damping mechanism reducing irregular displacements (i.e. less variability in the sharing of segmental motion) during bending and an action of spinal stabilisation by muscles at segmental levels, and the latter a synergy between laxity at L2-3 and MSV. While this has previously been theorised, it has never been shown in vivo at the inter-vertebral level. These assessments may be considered for use in validation studies of exercise programs for CNSLBP, however further replication is required.
https://eprints.bournemouth.ac.uk/31157/
Source: Europe PubMed Central
Relationships between muscle electrical activity and the control of inter-vertebral motion during a forward bending task
Authors: du Rose, A., Breen, A. and Breen, A.
Journal: Journal of Electromyography and Kinesiology
Volume: 43
Issue: December
Pages: 48-54
ISSN: 1050-6411
Abstract:Muscle strengthening exercises are commonly used in primary care for the treatment of chronic, non-specific low back pain (CNSLBP) as it has been theorised that increased muscle activity contributes to the stabilisation of intervertebral motion segments during bending and other spinal movements, however this has never been demonstrated in vivo. This study used contemporaneous quantitative fluoroscopy (QF) and surface electromyography (sEMG) to investigate relationships between continuous intervertebral motion variables and muscle electrical activity in the lumbar multifidus (LMU), lumbar and thoracic erector spinae (LES and TES) during standardised lumbar flexion and return in 18 healthy male human subjects. Our results demonstrated that intervertebral angular Motion Share Variability (MSV) and motion segment laxity were significantly (p<0.05) negatively correlated (Spearman) with, and weakly dependent (Kendall’s tau) on muscle electrical activity throughout the participant bend for both locally and globally acting muscle groups. MSV and laxity were also strongly correlated with each other for L2-3 laxity.
The former suggests a damping mechanism reducing irregular displacements during bending and an action of spinal stabilisation by muscles at segmental levels and the latter a synergy between laxity at L2-3 and MSV. While this has previously been theorised, it has never been shown in vivo at the intervertebral level. These assessments may be considered for use in validation studies of exercise programs for CNSLBP, however further replication is required.
https://eprints.bournemouth.ac.uk/31157/
Source: BURO EPrints