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Novel Wearable Sensors and Digital Applications

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Wearables".

Deadline for manuscript submissions: 10 May 2025 | Viewed by 2788

Special Issue Editors


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Guest Editor
School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian 116024, China
Interests: wearable device; biomedical signal processing; biomedical system modeling and simulation

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Guest Editor
School of Electronics and Information Engineering, South China Normal University, Foshan 528225, China
Interests: signal processing for the Internet of things and biomedical engineering

Special Issue Information

Dear Colleagues,

Wearable sensors are the fundamental technology enabling the continuous monitoring of vital signs, health data, physiological data, and even mental health. With the application and market growth of wearable devices, there are opportunities for sensors that can detect various parameters, including glucose levels, pressure, movement, and temperature. People are increasingly using wearable sensors to monitor their activity levels. The market is now expanding into more complex areas of health monitoring. The innovation of wearable sensor technology has expanded the range of biometrics that can be monitored, meeting the needs of remote patient monitoring; for example, inertial sensors, optical sensors, and biochemical sensors for monitoring vital signs, stress, sleep, and even brain activity. This enables easier access to health data and the further integration of sensors into augmented reality/virtual reality (AR/VR) devices, as well as their accessories, to achieve a more immersive user experience. The objective of this Special Issue is to generate discussions on the latest advances in the research on wearable sensors and digital applications. Topics of interest include, but are not limited to, the following:

  • Wearable sensors.
  • Wearable physiological function monitoring.
  • Biomedical signal monitor.
  • Biomedical telemonitoring.
  • Personalized rehabilitation monitoring.
  • Biomedical signal processing.
  • Internet of things for biomedicine.

Prof. Dr. Hong Tang
Prof. Dr. Han Zhang
Guest Editors

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Keywords

  • wearable sensors
  • wearable physiological function monitoring
  • biomedical signal monitor
  • biomedical telemonitoring
  • personalized rehabilitation monitoring
  • biomedical signal processing
  • Internet of things for biomedicine

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Published Papers (2 papers)

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Research

20 pages, 5426 KiB  
Article
Artificial Intelligence-Based Atrial Fibrillation Recognition Method for Motion Artifact-Contaminated Electrocardiogram Signals Preprocessed by Adaptive Filtering Algorithm
by Huanqian Zhang, Hantao Zhao and Zhang Guo
Sensors 2024, 24(12), 3789; https://doi.org/10.3390/s24123789 - 11 Jun 2024
Cited by 1 | Viewed by 880
Abstract
Atrial fibrillation (AF) is a common arrhythmia, and out-of-hospital, wearable, long-term electrocardiogram (ECG) monitoring can help with the early detection of AF. The presence of a motion artifact (MA) in ECG can significantly affect the characteristics of the ECG signal and hinder early [...] Read more.
Atrial fibrillation (AF) is a common arrhythmia, and out-of-hospital, wearable, long-term electrocardiogram (ECG) monitoring can help with the early detection of AF. The presence of a motion artifact (MA) in ECG can significantly affect the characteristics of the ECG signal and hinder early detection of AF. Studies have shown that (a) using reference signals with a strong correlation with MAs in adaptive filtering (ADF) can eliminate MAs from the ECG, and (b) artificial intelligence (AI) algorithms can recognize AF when there is no presence of MAs. However, no literature has been reported on whether ADF can improve the accuracy of AI for recognizing AF in the presence of MAs. Therefore, this paper investigates the accuracy of AI recognition for AF when ECGs are artificially introduced with MAs and processed by ADF. In this study, 13 types of MA signals with different signal-to-noise ratios ranging from +8 dB to −16 dB were artificially added to the AF ECG dataset. Firstly, the accuracy of AF recognition using AI was obtained for a signal with MAs. Secondly, after removing the MAs by ADF, the signal was further identified using AI to obtain the accuracy of the AF recognition. We found that after undergoing ADF, the accuracy of AI recognition for AF improved under all MA intensities, with a maximum improvement of 60%. Full article
(This article belongs to the Special Issue Novel Wearable Sensors and Digital Applications)
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14 pages, 2700 KiB  
Communication
Clinical Effect Analysis of Wearable Sensor Technology-Based Gait Function Analysis in Post-Transcranial Magnetic Stimulation Stroke Patients
by Litong Wang, Likai Wang, Zhan Wang, Fei Gao, Jingyi Wu and Hong Tang
Sensors 2024, 24(10), 3051; https://doi.org/10.3390/s24103051 - 11 May 2024
Cited by 1 | Viewed by 1098
Abstract
(1) Background: This study evaluates the effectiveness of low-frequency repetitive transcranial magnetic stimulation (LF-rTMS) in improving gait in post-stroke hemiplegic patients, using wearable sensor technology for objective gait analysis. (2) Methods: A total of 72 stroke patients were randomized into control, sham stimulation, [...] Read more.
(1) Background: This study evaluates the effectiveness of low-frequency repetitive transcranial magnetic stimulation (LF-rTMS) in improving gait in post-stroke hemiplegic patients, using wearable sensor technology for objective gait analysis. (2) Methods: A total of 72 stroke patients were randomized into control, sham stimulation, and LF-rTMS groups, with all receiving standard medical treatment. The LF-rTMS group underwent stimulation on the unaffected hemisphere for 6 weeks. Key metrics including the Fugl-Meyer Assessment Lower Extremity (FMA-LE), Berg Balance Scale (BBS), Modified Barthel Index (MBI), and gait parameters were measured before and after treatment. (3) Results: The LF-rTMS group showed significant improvements in the FMA-LE, BBS, MBI, and various gait parameters compared to the control and sham groups (p < 0.05). Specifically, the FMA-LE scores improved by an average of 5 points (from 15 ± 3 to 20 ± 2), the BBS scores increased by 8 points (from 35 ± 5 to 43 ± 4), the MBI scores rose by 10 points (from 50 ± 8 to 60 ± 7), and notable enhancements in gait parameters were observed: the gait cycle time was reduced from 2.05 ± 0.51 s to 1.02 ± 0.11 s, the stride length increased from 0.56 ± 0.04 m to 0.97 ± 0.08 m, and the walking speed improved from 35.95 ± 7.14 cm/s to 75.03 ± 11.36 cm/s (all p < 0.001). No adverse events were reported. The control and sham groups exhibited improvements but were not as significant. (4) Conclusions: LF-rTMS on the unaffected hemisphere significantly enhances lower-limb function, balance, and daily living activities in subacute stroke patients, with the gait parameters showing a notable improvement. Wearable sensor technology proves effective in providing detailed, objective gait analysis, offering valuable insights for clinical applications in stroke rehabilitation. Full article
(This article belongs to the Special Issue Novel Wearable Sensors and Digital Applications)
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