Variation of neck EMG and mechanical characteristics during the process of cervical traction
10.3871/j.1004-7220.2016.05.421
- VernacularTitle:颈椎牵引过程中颈部肌电信号变化规律与力学特点
- Author:
Teng-fei YANG
1
;
Jin-wu WANG
2
,
3
;
Zhi-gang HU
1
;
Dong-liao FU
1
;
Hu WANG
4
;
Ke-rong DAI
2
,
3
Author Information
1. Department of Medical Technology and Engineering,Henan University of Science and Technology
2. Shanghai Key Laboratory for orthopedic implant, Department of Orthopaedics, Shanghai Ninth People’s Hospital
3. Digital Medical Clinical Transformation and Engineering Research Center, Ministry of Education, Shanghai Jiao Tong University
4. Department of Mechanical and Electrical Engineering, Henan University of Science and Technology
- Publication Type:Journal Article
- Keywords:
Surface EMG;
Supine;
Cervical traction;
Sternocleidomastoid;
Upper trapezius
- From:
Journal of Medical Biomechanics
2016;31(5):E421-E425
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe changes of surface electromyography (sEMG) in cervical traction under different loading weight and at different angles, and compare the muscle activity changes obtained by experiment with simulation results obtained by AnyBody cervical modeling, so as to verify the rationality of the simulation results. Methods Ten young volunteers with supine cervical traction were selected to test the sEMG signals of bilateral sternocleidomastoid (SCM) and upper trapezius (UT) muscles by using the JE-TB0810 surface EMG device. The average EMG (AEMG) and mean power frequency (MPF) were used to analyze the variation patterns of sEMG in cervical spine. Results The AEMG values of SCM and UT muscles increased as the loading weight and traction angles increasing, with a statistically significant difference (P<0.05). The AEMG values of UT muscles was higher than that of SCM muscles, also with a statistically significant difference (P<0.05). No statistical differences were found in the MPF values at different traction angles and under different loading weight for both SCM and UT muscles (P>0.05). The experimental results were consistent with muscle force activity characteristics of SCM and UT muscles by modeling and simulation of cervical traction. Conclusions The simulation results are reasonable. The traction weight should be loaded reasonably according to the excitation and fatigue of the cervical muscles in clinic. This can both reach the treatment effect and improve the patient’s comfort, which will provide an important reference for further development and improvement of the cervical traction device.
