Characteristics of surface electromyography of muscles in stroke patients with lower limb spasticity under isokinetic passive movement
10.3969/j.issn.1006-9771.2022.12.013
- VernacularTitle:等速被动运动模式下脑卒中患者下肢痉挛肌群表面肌电信号的特征
- Author:
Jingwei GUO
1
;
Ruidong GE
1
;
Shuo BAI
2
;
Jiaxi WANG
1
;
Shuai WU
3
;
Le WANG
4
Author Information
1. Rehabilitation Medicine Department, China-Japan Friendship Hospital, Beijing 100029, China
2. Rehabilitation Medicine Department, Taiyanggong Community Health Service Center, Beijing 100028, China
3. Department of Chinese Medicine, Yizhuang Hospital, Beijing 100176, China
4. Beijing University of Chinese Medicine, Beijing 100029, China
- Publication Type:Journal Article
- Keywords:
stroke;
spasticity;
isokinetic passive movement;
surface electromyography
- From:
Chinese Journal of Rehabilitation Theory and Practice
2022;28(12):1473-1477
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate the characteristics of surface electromyography (sEMG) of muscles in stroke patients with lower limb spasticity. MethodsFrom October, 2016 to July, 2020, a total of 32 stroke patients with hemiplegia and eleven healthy subjects (control group) were selected. The patients were divided into modified Ashworth Scale (MAS) 0 group (n = 13), MAS 1 group (n = 10) and MAS 1+ group (n = 9). All the groups were subjected to isokinetic passive movement at baseline, 90°/s, 150°/s, 210°/s and 270°/s, respectively. sEMG signals of rectus femoris muscle and lateral head of quadriceps femoris muscle including root mean square (RMS) and integrated electromyography (iEMG) were collected synchronically during isokinetic passive movement. ResultsThere was no significant difference in RMS and iEMG among baseline and the four angular velocities in the control group and MAS 0 group (P > 0.05). The RMS and iEMG of MAS 1 group at 270°/s were significantly different from baseline and the other angular velocities (P < 0.05), and no significant difference was found among the other velocities (P > 0.05). The RMS and iEMG of MAS 1+ group were significantly different among baseline and the four angular velocities (P < 0.05). ConclusionRMS and iEMG varies with angular velocity in hemiplegic patients with different muscle tension levels. In patients with the same muscle tension level, the changes of RMS and iEMG with angular velocity are consistent. RMS and iEMG can reflect the degree of spasm. The quantitative evaluation of spasm by sEMG in isokinetic passive movement mode is highly feasible and worthy of further clinical research and promotion.
