Abstract
The estimation of the joint angles of the fingers and the wrist using electromyography (EMG) signals is essential to enhance the quality of life for amputees, but this task is often considered challenging. In fact, developing robust mechanisms that can estimate the values of the joint angles in the hand provides better control of prosthetic hands and enables the execution of various daily life activities. In this chapter, we present an EMG-based approach for estimating the joint angles of the fingers and wrist. The proposed approach utilizes the discrete wavelet transform (DWT) to analyze the EMG signals in the time-frequency domain. Then, we extract a set of features based on the obtained detail and approximation coefficients of the DWT. The extracted features are used to train a set of support vector regression (SVR) models to estimate the joint angles of the fingers and wrist. To evaluate the performance of the proposed approach, we employed the publicly available NinaPro database, namely database 1, which comprises the EMG signals along with the hand kinematic data recorded for 27 healthy subjects while performing 52 hand movements. The results presented in this chapter demonstrate the capability of the proposed approach to estimate the joint angles of the fingers and wrist.
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Centers for Disease Control and Prevention, National Center for Health Statistics
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Acknowledgments
This research was supported by the Scientific Research Support Fund - Jordan (grant no. ENG/1/9/2015). Also, this research was partially supported by the Seed-Grant program at the German Jordanian University (grant no. SAMS 8/2014).
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Alazrai, R., Daoud, M.I., Khalifeh, A., Alnuman, N., Mowafi, Y., Alabed, D. (2019). A Wavelet-Based Approach for Estimating the Joint Angles of the Fingers and Wrist Using Electromyography Signals. In: Fardoun, H., Hassan, A., de la Guía, M. (eds) New Technologies to Improve Patient Rehabilitation. REHAB 2016. Communications in Computer and Information Science, vol 1002. Springer, Cham. https://doi.org/10.1007/978-3-030-16785-1_3
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