Analysis of Recruitment Pattern of Related Muscles in Two Types of Active Straight Leg Raise
10.3969/j.issn.1006-9771.2019.07.020
- VernacularTitle:两种主动直腿抬高动作相关肌群募集模式的分析
- Author:
Rong BIAN
1
;
Xiao LU
1
;
Hao XIONG
2
;
Wen-yue CAO
2
;
Hai-yan ZHU
2
;
Yu-sheng CAI
2
Author Information
1. Rehabilitation Department, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
2. Faculty of Rehabilitation, Nanjing Medical University, Nanjing, Jiangsu 210000, China
- Publication Type:Research Article
- Keywords:
active straight leg raise;
abdominal muscles;
recruitment pattern;
isometric contraction;
isotonic contraction;
surface electromyography
- From:
Chinese Journal of Rehabilitation Theory and Practice
2019;25(7):840-844
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To compare the rate of recruitment in two types of active straight leg raise (ASLR) and to investigate the activation patterns of the related muscles. Methods:From June to October, 2018, eleven healthy subjects were recruited. Surface electromyography (sEMG) signals of unilateral rectus femoris, bilateral rectus abdominis, internal oblique abdominis, external oblique abdominis and multifidus were recorded in normal ASLR (Action A) and raising leg for ten seconds (Action B). %maximal voluntary isometric contraction (MVIC) of these muscles was processed and analyzed. Results:%MVIC of ipsilateral internal oblique muscle and external oblique muscle were greater than the opposite side (t > 2.549, P < 0.05) in Action A; %MVIC of ipsilateral internal oblique muscle, external oblique muscle and rectus abdominis muscle were greater than the opposite side (t > 2.240, P < 0.05) in Action B; compared with action B, Action A had higher %MVIC of bilateral internal oblique and rectus femoris (t > 3.549, P < 0.05). Conclusion:The activation mode of ipsilateral dominance was shown in both actions, and the different motion control strategies may be adopted by the neuromuscular system in different ASLR.
