Search
Search Results
-
Heart Rate Variability as a Predictor of Daytime Sleepiness during Prolonged Isolation
Abstract—The 120-day isolation experiment (SIRIUS-19 program) within the SIRIUS project ( http://sirius.imbp.ru/ ) involved six volunteers aged 28 to...
-
Spectral Analysis of Heart Rate Variability Based on the Hilbert–Huang Method
AbstractAnalysis of heart rate variability (HRV) is widely used for noninvasive assessment of the state of the regulation systems of the heart. The...
-
Lifelong longitudinal assessment of the contribution of multi-fractal fluctuations to heart rate and heart rate variability in aging mice: role of the sinoatrial node and autonomic nervous system
Aging is a major risk factor for sinoatrial node (SAN) dysfunction, which can impair heart rate (HR) control and heart rate variability (HRV). HR and...
-
Heart Rate Variability in Children of Younger School Age during Speleoclimatotherapy
AbstractThe autonomic nervous system is a key link in the course of adaptation and adaptive reactions of an organism to various environmental...
-
Phenotypic but not genetically predicted heart rate variability associated with all-cause mortality
Low heart rate variability (HRV) has been widely reported as a predictor for increased mortality. However, the molecular mechanisms are poorly...
-
Comparison of the Effect on Heart Rate Variability for Modeling Septoplasty and Modeling Deprivation of the Olfactory Analyzer in Rats
AbstractModeling septoplasty and modeling sensory deprivation of the olfactory analyzer in rats were compared for the effect on the frequency domain...
-
The moderating effect of resting heart rate variability on the relationship between pain catastrophizing and depressed mood: an empirical study
Previous research indicated that pain catastrophizing—a negative emotional and cognitive response toward actual or anticipated pain—could contribute...
-
Potential autonomic nervous system dysfunction in COVID-19 patients detected by heart rate variability is a sign of SARS-CoV-2 neurotropic features
Increasing evidence strongly support that the newly identified severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) leads to the development...
-
Assessment of activity and heart rate as indicators for acute stress in Atlantic salmon
The aim of this study was to assess whether activity and heart rate sensor implants can be used to measure stress and thus estimate one important...
-
Heart rate and age modulate retinal pulsatile patterns
Theoretical models of retinal hemodynamics showed the modulation of retinal pulsatile patterns (RPPs) by heart rate (HR), yet in-vivo validation and...
-
Less variability when growing faster? Experimental assessment of the relationship of growth rate with functional traits of the marine diatom Phaeodactylum tricornutum
Diversity and its drivers and consequences are at the heart of ecological research. Mostly, studies have focused on different species, but if the...
-
Frequency-Dependent Variability of Pulse Wave Transit Time: Pilot Study
AbstractThe dynamics of the pulse wave (PW) associated with the PW transit time variability (PWTTV) determines the peripheral pulse rate variability,...
-
Comparison of the Effects of Septoplasty and Sinus Lifting Simulation in Rats on Changes in Heart Rate Variability
AbstractThe effects of septoplasty and sinus lifting simulation in rats on changes in the frequency domain of heart rate variability were compared....
-
Heart Rate Variability as a Potential Non-invasive Marker of Blood Glucose Level
AbstractCurrently, monitoring of blood glucose level (BGL) is constrained by the invasive nature of BGL measures. We investigated heart rate...
-
Influence of Age on Baroreflex Synchronization of Blood Pressure and Heart Rate during the Passive Tilt Test
AbstractAge-related changes in phase synchronization of spontaneous mean arterial pressure (MAP) and heart rate (HR) fluctuations within the...
-
Validity of Pulse Express PRO in measurement of heart rate variability
This study aimed to examine the validity of Pulse Express PRO, a free mobile application for measurement of heart rate variability (HRV). Thirty...
-
Anxiety and heart rate in a real-life class test in undergraduates choosing real-time or prerecorded oral presentations
Most studies on acute stress stem from works conducted under artificial laboratory conditions. Inducing stress for experimental scrutiny is...
-
Typological Features of Autonomic Heart Rate Regulation during Imitation of a Rise to Altitude by Using Additional Respiratory Resistance
AbstractThe aim of this work was to study the indicators of heart rate variability (HRV) under conditions of additional respiratory resistance (ARR)...
-
Non-invasive measurements of respiration and heart rate across wildlife species using Eulerian Video Magnification of infrared thermal imagery
BackgroundAn animal’s metabolic rate, or energetic expenditure, both impacts and is impacted by interactions with its environment. However,...
