Results 61 to 70 of about 17,709 (302)

Heart Rate Validity of a Photoplethysmography Fitness Device During Sustained Isometric Contractions [PDF]

The aim of this study was to evaluate the validity of heart rate (HR) measurements by a photoplethysmography (PPG) fitness device during a sustained isometric contraction that models resistance training.
Jason Wesley Thomas
core   +2 more sources

Non-Invasive Classification of Blood Glucose Level Based on Photoplethysmography Using Time-Frequency Analysis

Inf., 2023
Diabetes monitoring systems are crucial for avoiding potentially significant medical expenses. At this time, the only commercially viable monitoring methods that exist are invasive ones.
Ernia Susana, K. Ramli, P. D. Purnamasari, N. H. Apriantoro   +3 more
semanticscholar   +1 more source

Review of deep learning methods for imaging photoplethysmography data processing

Научно-технический вестник информационных технологий, механики и оптики
This paper presents a review of contemporary deep learning methods for processing remote photoplethysmography data. Architectures of convolutional neural networks, transformers, recurrent, and generative models are examined for video signal preprocessing
I. M. Rubin, M. A. Volynsky
doaj   +1 more source

Improvement of Left Ventricular Ejection Time Measurement in the Impedance Cardiography Combined with the Reflection Photoplethysmography

Sensors, 2018
Cardiac stroke volume (SV) is an essential hemodynamic indicator that can be used to assess whether the pump function of the heart is normal. Non-invasive SV measurement is currently performed using the impedance cardiography (ICG).
Shing-Hong Liu, Jia-Jung Wang, Chun-Hung Su, Da-Chuan Cheng   +3 more
doaj   +1 more source

The use of photoplethysmography for assessing hypertension

npj Digital Medicine, 2019
The measurement of blood pressure (BP) is critical to the treatment and management of many medical conditions. High blood pressure is associated with many chronic disease conditions, and is a major source of mortality and morbidity around the world.
M. Elgendi, R. Fletcher, Yongbo Liang, Newton Howard, N. Lovell, D. Abbott, Kenneth Lim, R. Ward   +7 more
semanticscholar   +1 more source

Blood pressure stratification using photoplethysmography and light gradient boosting machine

Frontiers in Physiology, 2023
Introduction: Globally, hypertension (HT) is a substantial risk factor for cardiovascular disease and mortality; hence, rapid identification and treatment of HT is crucial.
Xudong Hu, S. Yin, Xizhuang Zhang, Carlo Menon, C. Fang, Zhen-cheng Chen, M. Elgendi, Yongbo Liang   +7 more
semanticscholar   +1 more source

CLINICAL PERSPECTIVES ON PHOTOPLETHYSMOGRAPHY IN IDENTIFYING THE RISK OF DEVELOPING CARDIOVASCULAR DISEASES

Актуальные проблемы теоретической и клинической медицины
Introduction. This literature review focuses on modern methods for assessing cardiovascular risk using photoplethysmography and heart rate variability.
B. А. Bugibayeva, А. S. Abzaliyeva, B. К. Abzaliyev, М. Т. Abdirova, U. М. Suleimenova, A. M. Datkabayeva   +5 more
doaj   +1 more source

A review on wearable photoplethysmography sensors and their potential future applications in health care

International Journal of Biosensors & Bioelectronics, 2018
Photoplethysmography (PPG) is an uncomplicated and inexpensive optical measurement method that is often used for heart rate monitoring purposes. PPG is a non-invasive technology that uses a light source and a photodetector at the surface of skin to ...
D. Castañeda, Aibhlin Esparza, M. Ghamari, C. Soltanpur, H. Nazeran   +4 more
semanticscholar   +1 more source

Seedless One‐Pot Synthesis of Colloidal InAs Quantum Dots Enabling a High‐Accuracy Photoplethysmography Oximeter

Advanced Science, EarlyView.
A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim, Seungin Jee, Yongnam Ahn, In‐Suh Lee, Dongeon Kim, Seongchong Park, Yujin Jung, In‐Ho Bae, Se‐Woong Baek   +8 more
wiley   +1 more source

Effects of Missing Data on Heart Rate Variability Measured From A Smartwatch: Exploratory Observational Study

JMIR Formative Research
BackgroundMeasuring heart rate variability (HRV) through wearable photoplethysmography sensors from smartwatches is gaining popularity for monitoring many health conditions.
Hope Davis-Wilson, Meghan Hegarty-Craver, Pooja Gaur, Matthew Boyce, Jonathan R Holt, Edward Preble, Randall Eckhoff, Lei Li, Howard Walls, David Dausch, Dorota Temple   +10 more
doaj   +1 more source