Practical method for predicting intended gait speed via soleus surface EMG signals

Autor: J.M. Lee, S.H. Chung, J.W. Kim, Jung Hae Choi, Sungshil Kim
Rok vydání: 2020
Předmět:
Zdroj: Electronics Letters. 56:528-531
ISSN: 1350-911X
0013-5194
Popis: The lack of patient effort during robot-assisted gait training (RAGT) is thought to be the main factor behind unsatisfactory rehabilitative efficacy among hemiparetic stroke patients. A key milestone to implement patient-driven RAGT is to predict gait intent prior to actual joint movement. Here, the authors propose a method of predicting step speed intent via surface electromyogram (EMG) signals from the soleus. Six lower-limb muscles were initially evaluated on a treadmill, and the results suggest that the soleus EMG signals correlate well with step speed. The authors further propose a simple linear regression model which predicts subsequent step speed via current soleus EMG signals with over-ground gait sessions, R 2 of ∼0.6. The proposed experimental results and simple prediction model should be applicable for RAGT without significant modifications.
Databáze: OpenAIRE