Hybrid Magnetorheological Elastomer, the Future of Gait Detection

Abstract:

This article aims to present a brief review on sensors used for gait detection in Ankle Foot Orthosis (AFO) application. Both the advantages and disadvantages of sensors such as EMG sensor, rotary encoder, foot switches, and force plate are highlighted in this article. Authors also addressed the four characteristics of sensors for gait detection; uniformity, installation, flexibility, and multi-measurement. In addition, the sensors were then compared based on the characteristics. The foot switch was identified as the most compatible sensor for gait detection. However, the sensor was also discovered to contain problems in its durability and uneven grounding. Consequently, the authors propose an introduction to a new material, hybrid Magnetorheological Elastomer (MRE). Coincidentally, the mentioned material possesses attributes of thin dimensions with adjustable stiffness. The thin dimension allows the hybrid MRE to be placed under the AFO sole. Furthermore, with an accurate degree of stiffness, the hybrid MRE allows for adjustment leading to a higher level of durability of the sensors which remains fine even if stomped on the user. In conclusion, the authors propose a further study on hybrid MRE AFO for the next study.

• Periodical: Key Engineering Materials (Volume 775)
• Pages: 177-183
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.775.177
• Online since: August 2018
• Authors: Dimas Adiputra*, Muhammad Kashfi Shabdin, Siti Aishah Abdul Aziz, Irfan Bahiuddin, Mohd Azizi Abdul Rahman, Saiful Amri Mazlan
• Keywords: Ankle Foot Orthosis, Electromyography, Encoder, Foot Switches, Force Plate, Gait Detection, Magnetorheological Elastomer, Sensors

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