TY - GEN
T1 - The co-contraction features of the lumbar muscle in patients with and without low back pain during multi-movements
AU - Du, Wenjing
AU - Li, Huihui
AU - Mumini, Omisore Olatunji
AU - Chen, Wenmin
AU - Wang, Lei
N1 - Funding Information:
*This work was supported in part by the National Natural Science Foundation of China under grant #61401454, #71531004; the National 863 Program of China under grant #2015AA043203; Shenzhen science and technology innovation of major projects under grant JSGG20160509142926253, and the foundation of Public technology service platform of biomedical electronics.
Publisher Copyright:
© 2018 IEEE.
PY - 2018/4/2
Y1 - 2018/4/2
N2 - Despite the important role played by muscle co-contraction in stabilizing and stiffening the spine during daily activities, the effects of multi-movement models on the lumbar co-contraction are yet to be explored. This study explores the co-contraction features of lumbar muscle in subjects with and without low back pain while they perform four different movements namely forward, backward, left flexion and right flexion lumbar actions. Surface electromyography (EMG) signals of three paired lumbar muscles were measured from a total number of 60 subjects while they performed specified movement models. Co-contraction ratio (CCR), defined as ratio of normalized integration of antagonist EMG activities to the total muscle activities, were accessed, and questionnaires about pain intensity were collected with visual analogue scale (VAS). The results showed that the CCR of LBP at forward (p = 0.007) and right flexion (p = 0.011) models was significantly greater than that of healthy controls, respectively. Also, CCR was significantly different among forward, backward, left flexion and right flexion models (p<0.05). Finally, co-contraction patterns from LBP subjects reveal disordered neuromuscular control in regulating the stiffness of lumbar spine.
AB - Despite the important role played by muscle co-contraction in stabilizing and stiffening the spine during daily activities, the effects of multi-movement models on the lumbar co-contraction are yet to be explored. This study explores the co-contraction features of lumbar muscle in subjects with and without low back pain while they perform four different movements namely forward, backward, left flexion and right flexion lumbar actions. Surface electromyography (EMG) signals of three paired lumbar muscles were measured from a total number of 60 subjects while they performed specified movement models. Co-contraction ratio (CCR), defined as ratio of normalized integration of antagonist EMG activities to the total muscle activities, were accessed, and questionnaires about pain intensity were collected with visual analogue scale (VAS). The results showed that the CCR of LBP at forward (p = 0.007) and right flexion (p = 0.011) models was significantly greater than that of healthy controls, respectively. Also, CCR was significantly different among forward, backward, left flexion and right flexion models (p<0.05). Finally, co-contraction patterns from LBP subjects reveal disordered neuromuscular control in regulating the stiffness of lumbar spine.
KW - Co-contraction ratio
KW - Low back pain
KW - Lumbar spine
KW - Multi-movement models
KW - Surface electromyography
UR - http://www.scopus.com/inward/record.url?scp=85049687515&partnerID=8YFLogxK
U2 - 10.1109/BSN.2018.8329652
DO - 10.1109/BSN.2018.8329652
M3 - Conference contribution
AN - SCOPUS:85049687515
T3 - 2018 IEEE 15th International Conference on Wearable and Implantable Body Sensor Networks, BSN 2018
SP - 34
EP - 37
BT - 2018 IEEE 15th International Conference on Wearable and Implantable Body Sensor Networks, BSN 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 15th IEEE International Conference on Wearable and Implantable Body Sensor Networks, BSN 2018
Y2 - 4 March 2018 through 7 March 2018
ER -
