Wireless Epidermal Electromyogram Sensing System

Lee, Sung-Jun; Yoon, Jiyong; Lee, Dae‐Woong; Seong, Duhwan; Lee, Sangkyu; Jang, M. S.; Choi, Junho; Kim, Jinseok; Lee, Sangyoup; Son, Donghee

doi:10.3390/electronics9020269

Cited by 14 publications

(15 citation statements)

References 65 publications

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“…Lee et al [27] developed a metal-based stretchable epidermal electrode by microfabrication. This electrode was made of polyimide, gold, titanium, PDMS, etc., and its performance as an electrode was tested through an EMG signal measurement experiment.…”

Section: Discussionmentioning

confidence: 99%

Development of Miniaturized Wearable Wristband Type Surface EMG Measurement System for Biometric Authentication

et al. 2021

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Personal authentication systems employing biometrics are attracting increasing attention owing to their relatively high security compared to existing authentication systems. In this study, a wearable electromyogram (EMG) system that can be worn on the forearm was developed to detect EMG signals and, subsequently, apply them for personal authentication. In previous studies, wet electrodes were attached to the skin for measuring biosignals. Wet electrodes contain adhesives and conductive gels, leading to problems such as skin rash and signal-quality deterioration in long-term measurements. The miniaturized wearable EMG system developed in this study comprised flexible dry electrodes attached to the watch strap, enabling EMG measurements without additional electrodes. In addition, for accurately classifying and applying the measured signal to the personal authentication system, an optimal algorithm for classifying the EMG signals based on a multi-class support vector machine (SVM) model was implemented. The model using cubic SVM achieved the highest personal authentication rate of 87.1%. We confirmed the possibility of implementing a wearable authentication system by measuring the EMG signal and artificial intelligence analysis algorithm presented in this study.

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Section: Discussionmentioning

confidence: 99%

Development of Miniaturized Wearable Wristband Type Surface EMG Measurement System for Biometric Authentication

et al. 2021

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“…In addition, fabric/textile electrodes are emerging to replace the traditional Ag/AgCl gel electrode [218,219] in electrocardiogram (ECG), [220] electromyogram (EMG), [221] and electroencephalogram (EEG), [222] achieving continuous health monitoring for recording the important bioelectrical information from cardiac activity, skeletal muscles, and brain. [223][224][225][226][227] Lee et al developed a stretchable PU fiber to individually control a hand robot through resistance response, as well as monitor the expansion (volume) of an artificial bladder for controllable liquid extraction. (Figure 12c), [207] It promises healthcare monitoring for the patients who suffered from the neurogenic lower urinary tract dysfunction resulted from the spinal cord injury.…”

Section: Fiber/fabric-based Sensors For Wearables and Human-robot Interfacementioning

confidence: 99%

Functional Fibers and Fabrics for Soft Robotics, Wearables, and Human–Robot Interface

2020

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Fiber that has been known for thousands of years for textile engineering, is a kind of thin 1D material with large length-diameter ratio and softness. Fiber can be further processed into 1D or 3D yarns and 2D or 3D fabrics and can be subjected to wellestablished textile manufacturing techniques, such as dyeing, twisting, sewing, knitting, weaving, braiding, etc. [1] As commercially available material, fabric has been widely used for clothing, bedding, or furniture. Such wide-adoption demonstrates fabrics/textiles to be important and adaptable as daily useable material due to their merits of protection, breathability, comfort, and durability. [2] In recent years, novel smart responsive functions are desirable to be implemented on fibers and fabrics for seamless integrations of actuators, sensors, power sources, etc., to realize the robotic fibers/fabric-based manipulators and human-robot interfaces. These emerging responsive fibers/ fabrics are desirable to offer programmable functions, actuations, perception and capable of building an intuitive and dynamic collaborative scenarios with human, promising in enabling applications such as remote operation, human motion assistance, human perception, health monitoring and biomedical detection and therapy. [3][4][5] It is an attractive concept that the future human-robot interfaces could be embodied in familiar forms for humans such as textiles or clothes. Compared with the polymeric and elastomeric soft robotics, [6][7][8][9] fibers and fabrics are advantageous in applications of soft robotics and wearables for human. The devices could be programmable to have accurate designs in configuration and high performance by traditional manufacturing processes of textile, applying twist to transform fibers into coils, yarns with hierarchical structures, which could be further fabricated into fabrics or textiles by sewing, weaving, knitting, etc., techniques (Figure 1), guaranteeing good wearability, skin affinity, washability, and durability, which are intriguing and necessary for friendly robotics interactions with human.Soft robotics include three main components of actuators, sensors, and control modules with power sources. [10,11] Of which, actuators, sensors and power sources all could be designed in the form of fibers or fabrics, rendering facile assembly, and integration by interlocking. [12] Common actuations can be Soft robotics inspired by the movement of living organisms, with excellent adaptability and accuracy for accomplishing tasks, are highly desirable for efficient operations and safe interactions with human. With the emerging wearable electronics, higher tactility and skin affinity are pursued for safe and user-friendly human-robot interactions. Fabrics interlocked by fibers perform traditional static functions such as warming, protection, and fashion. Recently, dynamic fibers and fabrics are favorable to deliver active stimulus responses such as sensing and actuating abilities for soft-robots and wearables. First, the responsive mechanisms of fiber/fabric actu...

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“…They must be ventilated, flexible, and foldable. Polymers, like polysiloxane [90], conductive fabric [91], or textile electrodes made by screen printing technology [92] meet the requirements.…”

Section: Muscle Activitymentioning

confidence: 99%

Application of Modern Multi-Sensor Holter in Diagnosis and Treatment

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et al. 2020

Sensors

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Modern Holter devices are very trendy tools used in medicine, research, or sport. They monitor a variety of human physiological or pathophysiological signals. Nowadays, Holter devices have been developing very fast. New innovative products come to the market every day. They have become smaller, smarter, cheaper, have ultra-low power consumption, do not limit everyday life, and allow comfortable measurements of humans to be accomplished in a familiar and natural environment, without extreme fear from doctors. People can be informed about their health and 24/7 monitoring can sometimes easily detect specific diseases, which are normally passed during routine ambulance operation. However, there is a problem with the reliability, quality, and quantity of the collected data. In normal life, there may be a loss of signal recording, abnormal growth of artifacts, etc. At this point, there is a need for multiple sensors capturing single variables in parallel by different sensing methods to complement these methods and diminish the level of artifacts. We can also sense multiple different signals that are complementary and give us a coherent picture. In this article, we describe actual interesting multi-sensor principles on the grounds of our own long-year experiences and many experiments.

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Wireless Epidermal Electromyogram Sensing System

Cited by 14 publications

References 65 publications

Development of Miniaturized Wearable Wristband Type Surface EMG Measurement System for Biometric Authentication

Development of Miniaturized Wearable Wristband Type Surface EMG Measurement System for Biometric Authentication

Functional Fibers and Fabrics for Soft Robotics, Wearables, and Human–Robot Interface

Application of Modern Multi-Sensor Holter in Diagnosis and Treatment

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