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Neuro-based thumb-tip force and joint angle modeling for development of prosthetic thumb control

Jalaludin, Nor Anija and Sidek, Shahrul Na'im and Shamsudin, Abu Ubaidah (2013) Neuro-based thumb-tip force and joint angle modeling for development of prosthetic thumb control. International Journal of Advanced Robotic Systems, 10. pp. 1-8. ISSN 1729-8806

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Human fingers have a specific role that contributes to different hand functions. Among these fingers, the thumb plays the most special function as an anchor to many hand activities. As a result, the loss of the thumb due to traumatic accidents can be catastrophic as proper hand function will be severely limited. In order to solve this problem, a prosthetic thumb is developed to be worn in complementing the function of the rest of the fingers. The movement of the prosthetic device can be naturally controlled by using electromyogram (EMG) signals. In this work, the EMG signals from the human muscles were measured in different thumb configurations and thumb-tip forces in flexion movement. The muscles involved are the Adductor Pollicis (AP), Flexor Pollicis Brevis (FPB), Abductor Pollicis Brevis (APB) and First Dorsal Interosseous (FDI). The classification of the EMG signals based on different force and thumb configurations is performed using an Artificial Neural Network (ANN).From a series of experiments, the results show that the neural network efficiently classified the signals and a unique set of EMG signals was generated for each thumb movement and force. Therefore, EMG signals were used to control the prosthetic movement with aid from the developed neural network.

Item Type: Article (Journal)
Additional Information: 3028/32213
Uncontrolled Keywords: Electromyogram (EMG) Signal, Prosthetic Thumb, Artificial Neural Network (ANN)
Subjects: T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User: Dr. Shahrul Naim Sidek
Date Deposited: 04 Oct 2013 11:59
Last Modified: 04 Oct 2013 11:59
URI: http://irep.iium.edu.my/id/eprint/32213

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