Results 51 to 60 of about 910 (137)

Contactless longitudinal monitoring in the home characterizes aging and Alzheimer's disease–related night‐time behavior and physiology

Alzheimer's &Dementia, Volume 21, Issue 10, October 2025.
Abstract INTRODUCTION Disturbed sleep patterns are common in dementia but have not been objectively quantified over long periods. METHODS We compared a cohort of 83 Alzheimer's disease (AD) patients to 13,588 individuals from the general population. Sleep patterns, heart rate, and breathing rate data were acquired using a zero‐burden contactless, under‐
Eyal Soreq, Magdalena A. Kolanko, CRT group, Kiran K. G. Ravindran, Ciro della Monica, Victoria Revell, Sarah Daniels, Anna Joffe, Helen Lai, Mara Golemme, Martina Del Giovane, Chloe Walsh, David Wingfield, Ramin Nilforooshan, Marie‐Ange Stefanos, Benjamin Vittrant, Paul de Villèle, Derk‐Jan Dijk, David J. Sharp   +18 more
wiley   +1 more source

Objective sleep monitoring at home in older adults: A scoping review

Journal of Sleep Research, Volume 34, Issue 4, August 2025.
Summary Inadequate sleep in older adults is linked to health issues such as frailty, cognitive impairment and cardiovascular disorders. Maintaining regular sleep patterns is important for healthy aging, making effective sleep monitoring essential.
Sarah Nauman Ghazi, Anders Behrens, Jessica Berner, Johan Sanmartin Berglund, Peter Anderberg   +4 more
wiley   +1 more source

A Wearable Sandwich Heterostructure Multimode Fiber Optic Microbend Sensor for Vital Signal Monitoring

Sensors
This work proposes a highly sensitive sandwich heterostructure multimode optical fiber microbend sensor for heart rate (HR), respiratory rate (RR), and ballistocardiography (BCG) monitoring, which is fabricated by combining a sandwich heterostructure ...
Fumin Zhou, Binbin Luo, Xue Zou, Chaoke Zou, Decao Wu, Zhijun Wang, Yunfang Bai, Mingfu Zhao   +7 more
doaj   +1 more source

Advancements in Bio‐Integrated Flexible Electronics for Hemodynamic Monitoring in Cardiovascular Healthcare

Advanced Science, Volume 12, Issue 25, July 3, 2025.
This review explores the cutting‐edge development of bio‐integrated flexible electronics for real‐time hemodynamic monitoring in cardiovascular healthcare. It covers key physiological indicators, innovative sensing mechanisms, and materials considerations. This paper highlights the application of both invasive and non‐invasive devices in cardiovascular
Ke Huang, Zhiqiang Ma, Bee Luan Khoo
wiley   +1 more source

Automated and precise heartbeat detection in ballistocardiography signals using bidirectional LSTM

Franklin Open, 2022
Ballistocardiography (BCG) provides an unobtrusive, mechanical measurement of heartbeat for early detection and longitudinal monitoring of cardiovascular conditions, although it is plagued by poor signal to noise ratio.
Shiyu Zhang, Haihong Zhang, Zhiping Lin, Soon Huat Ng   +3 more
doaj   +1 more source

Heterojunction Derived Efficient Charge Separation for High Sensitivity Self‐Powered Flexible Photodetectors toward Real‐Time Heart Rate Monitoring

Advanced Science, Volume 12, Issue 28, July 24, 2025.
Schematic diagram of heart rate monitoring by the flexible self‐powered PDs and 710 nm LED illumination. Abstract Real‐time and accurate heart rate monitoring is crucial in the field of disease prevention and early diagnosis. Compared with the conventional rigid heart rate sensors, wearable flexible devices have unique advantages, such as convenient ...
Nan Ding, Ge Zhu, Xiaotao Zhang, Wen Xu, Hailong Liu, Yanan Ji, Yuanzheng Chen, Bin Dong   +7 more
wiley   +1 more source

Exploring the application of ferroelectret nanogenerators in medical engineering

FlexMat, Volume 2, Issue 2, Page 204-224, July 2025.
Abstract Flexible devices derived from piezoelectric materials have gained considerable attention due to their exceptional biocompatibility. Among these, ferroelectret nanogenerators (FENG) is a novel type of flexible piezoelectric device that integrates self‐powering, actuation, and sensing capabilities.
Xianfa Cai, Xiaowen Han, Jiaqi Xie, Yunqi Cao, Wei Li   +4 more
wiley   +1 more source

BioWatch: Estimation of Heart and Breathing Rates from Wrist Motions

EAI Endorsed Transactions on Pervasive Health and Technology, 2015
Continued developments of sensor technology including hardware miniaturization and increased sensitivity have enabled the development of less intrusive methods to monitor physiological parameters during daily life.
Javier Hernandez, Daniel McDuff, Rosalind Picard   +2 more
doaj   +1 more source

Estimation of the respiratory rate from ballistocardiograms using the Hilbert transform

BioMedical Engineering OnLine, 2022
Background Measuring the respiratory rate is usually associated with discomfort for the patient due to contact sensors or a high time demand for healthcare personnel manually counting it.
Onno Linschmann, Steffen Leonhardt, Antti Vehkaoja, Christoph Hoog Antink   +3 more
doaj   +1 more source

Large Area Ballistocardiography Enabled by Printed Piezoelectric Sensor Arrays on Elastomeric Substrates

Advanced Materials Technologies, Volume 9, Issue 17, September 4, 2024.
The utilization of thin and long piezoelectric sensors on compliant substrates allows for the remarkable enhancement of the effective transverse charge constant (d31). The approach is validated using the printable piezoelectric polymer, poly(vinylidene fluoride‐co‐trifluoroethylene) P(VDF‐TrFE).
Peter Zalar, Marieke M. A. Burghoorn, Joost A. Fijn, Lars F. A. Rikken, Peter A. Rensing, Jeroen van den Brand, Dago M. de Leeuw, Edsger C. P. Smits   +7 more
wiley   +1 more source