Movements classification system for transhumeral amputees using myoelectric signals

dc.contributor.authorArcos Hurtado, Edgar Francisco
dc.contributor.authorBermeo Varón, Leonardo Antonio
dc.contributor.authorSarria Paja, Milton Orlando
dc.contributor.authorAzcarate Carmona, Jaime Andrés
dc.contributor.authorSarria Durán, Juan Camilo
dc.contributor.authorVillarejo Mayor, John Jairo
dc.date.accessioned2025-07-09T19:35:14Z
dc.date.available2025-07-09T19:35:14Z
dc.date.issued2024
dc.description.abstractThe extent of loss of functionality in people with transhumeral amputation or elbow disarticulation is considered highly compromised. The person with this impairment loses the primary muscle involved in the movement of the hand and fingers, and the elbow flexion/extension. In this sense, the development of myoelectric prostheses must include mechanisms that replicate these movements. Moreover, the control system for controlling a prosthesis must be robust and intuitive, where pattern recognition and artificial intelligence techniques represent an important and increasingly explored alternative. This study aims to develop a movement intention classification system based on myoelectric signals (MES) obtained from an elbow disarticulation amputee. Different features were extracted from the MES as the Mean absolute value (MAV), zero crossings (ZC), slope sign changes (SSC), waveform length (WL), and autoregressive (AR) coefficients. Machine learning classifiers (Linear Discriminant Analysis (LDA), Quadratic Discriminant Analysis (QDA), Support Vector Machines (SVM), K-Nearest Neighbors (KNN), Random Forests (RF), and Multilayer Perceptron (MLP)) were used to predict seven gestures: elbow flexion (EF), elbow extension (EE), forearm pronation (FP), forearm supination (FS), hand opening (HO), hand closing (HC), and rest (R). The results obtained with LDA, QDA, KNN, MLP, SVM, and RF were 60.84%, 71.05%, 77.10%, 78.06%, 78.57%, and 79.72% of accuracy, respectively. These results are promising and will allow the development of a myoelectric prosthesis control system for people with transhumeral amputation or elbow disarticulation.
dc.identifier.citationArcos Hurtado, E. F., Bermeo Varón, L. A., Sarria-Paja, M. O., Azcarate Carmona, J. A., Sarria Durán, J. C., & Villarejo-Mayor, J. J. (2024). Movements classification system for transhumeral amputees using myoelectric signals. Biomedical Signal Processing and Control, 98, 106776. https://doi.org/10.1016/J.BSPC.2024.106776
dc.identifier.issn17468094
dc.identifier.urihttps://repositorio.usc.edu.co/handle/20.500.12421/7317
dc.language.isoen
dc.publisherElsevier Ltd
dc.subjectElbow disarticulation
dc.subjectMyoelectric signals
dc.subjectPattern recognition
dc.subjectTranshumeral amputation
dc.titleMovements classification system for transhumeral amputees using myoelectric signals
dc.typeArticle

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