Results 41 to 50 of about 6,786 (191)

High-Fidelity Compressive Heart Rate Tracking

open access: yesIEEE Access, 2023
Recently, photoplethysmography sensors in smart watches have been frequently used to monitor heart rate. Because a photoplethysmography sensor flashes light on the skin and measures the reflected light, the rate of flashing and sampling is directly ...
Seungyoon Nam   +2 more
doaj   +1 more source

Continuous Blood Pressure Estimation From Electrocardiogram and Photoplethysmogram During Arrhythmias

open access: yesFrontiers in Physiology, 2020
ObjectiveContinuous blood pressure (BP) provides valuable information for the disease management of patients with arrhythmias. The traditional intra-arterial method is too invasive for routine healthcare settings, whereas cuff-based devices are inferior ...
ZengDing Liu   +7 more
doaj   +1 more source

An Overview of the Sensors for Heart Rate Monitoring Used in Extramural Applications

open access: yesSensors, 2022
This work presents an overview of the main strategies that have been proposed for non-invasive monitoring of heart rate (HR) in extramural and home settings. We discuss three categories of sensing according to what physiological effect is used to measure
Alessandra Galli   +4 more
doaj   +1 more source

An Empirical Study Comparing Unobtrusive Physiological Sensors for Stress Detection in Computer Work. [PDF]

open access: yes, 2019
Several unobtrusive sensors have been tested in studies to capture physiological reactions to stress in workplace settings. Lab studies tend to focus on assessing sensors during a specific computer task, while in situ studies tend to offer a generalized ...
Akbar, Fatema   +3 more
core   +2 more sources

Method of estimation of synchronization strength between low-frequency oscillations in heart rate variability and photoplethysmographic waveform variability

open access: yesRussian Open Medical Journal, 2016
This paper describes in detail a new method proposed by authors for quantitative estimation of the strength of synchronization between the low-frequency oscillations (with the main frequency of about 0.1 Hz) in the heart rate variability (HRV) and ...
Anton R. Kiselev   +9 more
doaj   +1 more source

Pulse Transit Time-Pulse Wave Analysis Fusion Based on Wearable Wrist Ballistocardiogram for Cuff-Less Blood Pressure Trend Tracking

open access: yesIEEE Access, 2020
The objective of this study was to investigate the efficacy of pulse transit time (PTT)-pulse wave analysis (PWA) fusion in cuff-less blood pressure (BP) trend tracking based on the wearable wrist ballistocardiogram (BCG).
Peyman Yousefian   +11 more
doaj   +1 more source

Skin thermophysiological effects of 448 kHz capacitive resistive monopolar radiofrequency in healthy adults : A randomised crossover study and comparison with Pulsed Shortwave Therapy [PDF]

open access: yes, 2018
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Electromagnetic Biology and Medicine on 8 January 2018, available online: https://doi.org/10.1080/15368378.2017.1422260. Under embargo until 8 January 2019.Radiofrequency-
Kumaran, Binoy, Watson, Tim
core   +2 more sources

DDM-HSA: Dual Deterministic Model-Based Heart Sound Analysis for Daily Life Monitoring

open access: yesSensors, 2023
A sudden cardiac event in patients with heart disease can lead to a heart attack in extreme cases. Therefore, prompt interventions for the particular heart situation and periodic monitoring are critical.
Miran Lee   +3 more
doaj   +1 more source

Influence of Photoplethysmogram Signal Quality on Pulse Arrival Time during Polysomnography

open access: yesSensors, 2023
Intervals of low-quality photoplethysmogram (PPG) signals might lead to significant inaccuracies in estimation of pulse arrival time (PAT) during polysomnography (PSG) studies.
Mantas Rinkevičius   +3 more
doaj   +1 more source

Fast and Robust Real-Time Estimation of Respiratory Rate from Photoplethysmography [PDF]

open access: yes, 2016
Respiratory rate (RR) is a useful vital sign that can not only provide auxiliary information on physiological changes within the human body, but also indicate early symptoms of various diseases.
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core   +1 more source

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