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.
|Translated title of the contribution||Choice of muscles for extracting consistent motor modules: the effect of trial-to-trial electromyography repeatability|
|Number of pages||9|
|Journal||Yiyong Shengwu Lixue/Journal of Medical Biomechanics|
|Publication status||Published - 2019 Aug 1|
- Muscle activation
ASJC Scopus subject areas
- Biomedical Engineering