Results 21 to 30 of about 60,663 (311)

Relationships between the entropies of EEG, HRV, immunocytogram and leukocytogram

Journal of Education, Health and Sport, 2019
Background. In mathematics the entropy is a measure of uncertainty of a random function; in the theory of information entropy is a measure of uncertainty in a situation, any experience (test) that can have different consequences.
O Popadynets’, A Gozhenko, W Zukow, I Popovych   +3 more
doaj   +1 more source

IDENTIFICATION OF OBSTRUCTIVE SLEEP APNEA USING ARTIFICIAL NEURAL NETWORKS AND WAVELET PACKET DECOMPOSITION OF THE HRV SIGNAL

The Journal of Engineering Research, 2020
The advancement of telecommunication technologies has provided us with new promising alternatives for remote diagnosis and possible treatment suggestions for patients of diverse health disorders, among which is the ability to identify Obstructive Sleep ...
Abdulnasir Hossen, Sarah Qasim
doaj   +1 more source

HRV (Heart Rate Variability) as a non-invasive measurement method for performance diagnostics and training control

Current Directions in Biomedical Engineering, 2019
The aim of this study was to determine whether non-invasive heart rate variability (HRV) recordings can be used to monitor training exercises and to estimate athletic performance.
Scherer Matthias, Martinek Johannes, Mayr Winfried   +2 more
doaj   +1 more source

Nonlinear heart rate variability features for real-life stress detection. Case study : students under stress due to university examination [PDF]

, 2011
Background: This study investigates the variations of Heart Rate Variability (HRV) due to a real-life stressor and proposes a classifier based on nonlinear features of HRV for automatic stress detection.
Melillo Paolo, L. Pecchia, Bracale, Marcello, Pecchia, Leandro, Melillo, Paolo, M. Bracale, P. Melillo, Bracale Marcello, Marcello Bracale, Paolo Melillo, Leandro Pecchia, Pecchia Leandro   +11 more
core   +1 more source

Testing and Analysis of the HRV Signals from Wearable Smart HRV Sensors

International Journal of Engineering and Technology, 2018
The objective of the test procedure is to obtain bio signals from Photoplethysmograph and Electrocardiograph sensors on selected consumer devices and to statistically validate the data for use with a drowsiness estimation method.The method selected for validation uses LF/HF ratio calculated by a set of R-R interval data to estimate drowsiness state of ...
Zigurds Markovics, Juris Lauznis, Matiss Erins, Olesja Minejeva, Raivis Kivlenieks   +4 more
openaire   +2 more sources

Post-Acute Effect of SARS-CoV-2 Infection on the Cardiac Autonomic Function

International Journal of General Medicine, 2022
Ayad Mohammed Salem,1 Talay Yar,1 Mohammed Al Eid,2 Husain Almahfoudh,2 Mohammed Alsaffar,2 Abdullah Al Ibrahim,2 Ali Almadan,2 Sana Alaidarous,2 Razan Almulhim,2 Nazish Rafique,1 Rabia Latif,1 Intisar Ahmad Siddiqui,3 Ahmed Alsunni1 1Department of ...
Salem AM, Yar T, Al Eid M, Almahfoudh H, Alsaffar M, Al Ibrahim A, Almadan A, Alaidarous S, Almulhim R, Rafique N, Latif R, Siddiqui IA, Alsunni A   +12 more
doaj  

Caused by Kozyavkin© method changes in hand function parameters in children with spastic form of cerebral palsy and their EEGs, HRVs and GDVs accompaniments

Journal of Education, Health and Sport, 2018
Background. Earlier we reported that in children with spastic forms of cerebral palsy (SFCP) after two-week course of rehabilitation by Kozyavkin© method the hand function tests changed ambiguously and such a variety of changes is due to differently ...
O V Kozyavkina, N V Kozyavkina, Т B Voloshyn, М S Hordiyevych, V I Lysovych, V Y Babelyuk, H I Dubkova, T A Korolyshyn, I R Mysula, D V Popovych, W Zukow, I L Popovych   +11 more
doaj   +1 more source

Spectral estimation of HRV in signals with gaps [PDF]

Biomedical Signal Processing and Control, 2019
Abstract Heart rate variability is commonly quantified following spectral estimation. However, it is often difficult to obtain continuous recordings of beat-to-beat intervals without interruptions due to artefacts, noise or sporadic arrhythmias. Such data loss may be seen as gaps in the recordings, and often results in such signals being discarded ...
Leandro Rodríguez Liñares, David M. Simpson 0001   +1 more
openaire   +2 more sources

Microbiota intestinal versus saúde mental: descobertas que podem impactar protocolos de tratamento psiquiátrico

Debates em Psiquiatria
Introdução: A descoberta da comunicação bidirecional entre intestino e cérebro tem despertado interesse para a compreensão do papel da microbiota intestinal na regulação dos processos emocionais.
Audrey Ribeiro Fischer, Hayslla Mikaella do Couto Araújo   +1 more
doaj   +1 more source

Movement filtered heart rate variability (HRV) data from a chest-worn sensor

Current Directions in Biomedical Engineering, 2021
Recording of heart rate variability (HRV) is a noninvasive and continuous measurement method that allows investigating the autonomic nervous system (ANS) and its reaction to environmental influences.
Hanshans Christian, Broell Lukas M., Plischke Herbert, Offenbaecher Martin, Zauner Johannes, Faust Moritz M. R., Maisch Bettina, Kohls Niko, Toussaint Loren, Hirsch Jameson, Siros Fuschia M.   +10 more
doaj   +1 more source