Human Walking Gait Classification Utilizing an Artificial Neural Network for the Ergonomics Study of Lower Limb Prosthetics

Prosthetics and orthotics research, studies, and technologies have been evolving through the years. According to World Health Organization (WHO) data, it is estimated that, globally, 35–40 million people require prosthetics and orthotics usage in daily life. Prosthetics and orthotics demand is incre...

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Veröffentlicht in:Prosthesis (Basel, Switzerland) Jg. 5; H. 3; S. 647 - 665
Hauptverfasser: Putri, Farika Tono, Caesarendra, Wahyu, Królczyk, Grzegorz, Glowacz, Adam, Prawibowo, Hartanto, Ismail, Rifky, Indrawati, Ragil Tri
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Basel MDPI AG 01.09.2023
Schlagworte:
Adaptive learning
Algorithms
Amputation
Back propagation
Classification
Data collection
Electrodes
Electromyography
Females
Fitness equipment
Gait
Males
Patients
Prostheses
Quality of life
Sensors
Walking
Indonesia
ISSN:2673-1592, 2673-1592
Online-Zugang:Volltext
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Zusammenfassung:Prosthetics and orthotics research, studies, and technologies have been evolving through the years. According to World Health Organization (WHO) data, it is estimated that, globally, 35–40 million people require prosthetics and orthotics usage in daily life. Prosthetics and orthotics demand is increasing due to certain factors. One of the factors is vascular-related disease, which leads to amputation. Prosthetic usage can increase an amputee’s quality of life. Therefore, studies of the ergonomic design of prosthetics are important. The ergonomic factor in design delivers prosthetic products that are comfortable for daily use. One way to incorporate the ergonomic design of prosthetics is by studying the human walking gait. This paper presents a multiclassification of human walking gait based on electromyography (EMG) signals using a machine learning method. An EMG sensor was attached to the bicep femoris longus and gastrocnemius lateral head to acquire the EMG signal. The experiment was conducted by volunteers during normal walking activity at various speeds and the movements were segmented as initial contact, which was labeled as initial gait; loading response to the terminal stance, which was labeled as mid-gait; and pre-swing to terminal swing, which was labeled as final gait. The EMG signal was then characterized using an artificial neural network (ANN) and compared to six training accuracy methods, i.e., the Levenberg–Marquardt backpropagation training algorithm, quasi-Newton training method, Bayesian regulation backpropagation training method, gradient descent backpropagation, gradient descent with adaptive learning rate backpropagation, and one-step secant backpropagation. The machine learning study performed well in the classification of three classes of human walking gait with an overall accuracy (training, testing, and validation) of 96% for Levenberg–Marquardt backpropagation. The gait data will be used to explore the design of lower limb prosthetics in future research.
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ISSN:2673-1592
2673-1592
DOI:10.3390/prosthesis5030046