Choice of Muscles for Extracting Consistent Motor Modules: The Effect of Trial-to-Trial Electromyography Repeatability
10.16156/j.1004-7220.2019.04.14
- VernacularTitle:不同肌肉组选择导出模块对组间肌电反复性的影响(英文）
- Author:
Yushin KIM
1
;
Minhee KIM
2
;
Bumchul YOON
2
;
Sangheon LEE
3
Author Information
1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology
2. Department of Physical Therapy, College of Health Science, Korea University
3. Department of Physical Medicine and Rehabilitation, Korea University Medical Center
- Publication Type:Journal Article
- Keywords:
muscle activation;
electromyography(EMG);
walking;
stability;
repeatability
- From:
Journal of Medical Biomechanics
2019;34(4):E425-E433
- CountryChina
- Language:Chinese
-
Abstract:
Objective To identify the effect of the repeatability of muscle activations on extraction of consistent motor modules across trials. Methods The activities of sixteen muscles in twelve subjects who consistently walked at a self-selected speed were recorded. The intraclass correlation coefficient (ICC) was used to identify inter-stride repeatability of muscle activities and motor modules. Based on the repeatability of muscle activation, three types of muscle sets were organized. Results The reliable set containing the muscles showed high ICC (>0.4), but the whole-body and mixed sets containing the muscles showed poor ICC (＜0.4). When motor modules were extracted from each set, the reliable set showed the highest repeatability of motor module extraction, but the whole-body and mixed sets presented significantly lower repeatability. Conclusions Greater repeatability of muscle activations result ed in consistent motor modules. Extraction of consistent motor modules was a critical issue, especially in real-time motion recognition based on muscle patterns.
