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Boltaboyeva, Assiya
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Computer Science & IT Electrical & Electronics Engineering

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Machine learning-based classification of local muscle fatigue using electromyography signals for enhanced rehabilitation outcomes Baigarayeva, Zhanel; Boltaboyeva, Assiya; Imanbek, Baglan; Ozhikenov, Kassymbek; Karymssakova, Nurgul; Beisembekova, Roza
International Journal of Electrical and Computer Engineering (IJECE) Vol 15, No 6: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v15i6.pp5954-5967

Abstract

Muscle fatigue is a key factor affecting rehabilitation progress, safety, and patient engagement. Accurate detection of fatigue during physical activity remains a challenge, particularly in clinical and remote settings. This study presents the development of an Internet of things-based system for classifying local muscle fatigue using surface electromyography (EMG) signals and machine learning. A wearable device was used to collect real-time EMG data and subjective fatigue ratings from 10 healthy participants during sustained isometric grip exercises. Feature extraction was performed on-device, and the data were transmitted wirelessly for analysis. Machine learning models including logistic regression, decision tree (DT), random forest, and extreme gradient boosting (XGBoost) were trained to classify fatigue states. The DT model achieved the highest accuracy of 90.7%, with a precision of 90.7% and a recall of 90.9%. SHAP analysis revealed time under load, smoking, and alcohol use as the most influential factors in fatigue classification. These results show that wearable EMG devices combined with smart algorithms are effective for real-time fatigue monitoring during rehabilitation.
Co-Authors Baigarayeva, Zhanel Beisembekova, Roza Imanbek, Baglan Karymssakova, Nurgul Ozhikenov, Kassymbek