A5046986371- Heart Rate Variability and Autonomic Control
- Cardiovascular Health and Disease Prevention
- Non-Invasive Vital Sign Monitoring
- Cardiovascular Function and Risk Factors
- Blood Pressure and Hypertension Studies
- Cardiovascular and exercise physiology
- Cardiovascular Disease and Adiposity
- ECG Monitoring and Analysis
- Cardiac Imaging and Diagnostics
- Ovarian function and disorders
- Thermoregulation and physiological responses
- Infrared Thermography in Medicine
- Cardiovascular Syncope and Autonomic Disorders
- Cardiac pacing and defibrillation studies
- Human Health and Disease
- Complex Systems and Time Series Analysis
- Scientific Research and Philosophical Inquiry
- Cardiovascular Effects of Exercise
- Thyroid Disorders and Treatments
- Nonlinear Dynamics and Pattern Formation
- Fusion and Plasma Physics Studies
- Cardiac electrophysiology and arrhythmias
- EEG and Brain-Computer Interfaces
- Cardiac Arrhythmias and Treatments
- Liver Disease Diagnosis and Treatment
Poznan University of Medical Sciences
2015-2024
University of Basel
2020
University General Hospital Attikon
2020
University Hospital of Basel
2020
University School of Physical Education in Kraków
2004-2014
University School
2008
The Poincaré plot is a widely used method for visualizing and calculating heart rate variability investigating the oscillatory nature of action. We show that produced using physiological data RR intervals asymmetric. This suggests processes acceleration (shortening consecutive intervals) deceleration (prolongation successive might be To investigate this phenomenon, we define descriptors quantifying asymmetry present results study involving 5-min ECG recordings 50 healthy subjects in which,...
Many methods computing heart rate variability (HRV) have been applied in studies children. Not all of these a comprehensive physiological interpretation, and not are agreement with the Task Force Standards on HRV from 1996, New Joint Position Statement advances 2015. The study aim was to analyse 24-hour ECGs healthy children by Poincare plots Lomb-Scargle periodograms, follow proper recommendations. Additionally, we investigated associations between age, children's sex measured indices. One...
SUMMARY Obesity appears to influence vascular stiffness, an important cardiovascular risk factor. An accurate picture of arterial stiffness may be obtained when a combination various techniques is used. The purpose the present study was assess whether body mass index (BMI) and fat content by bioimpedance were equal value in estimating fatness on indices wave reflection. A total 175 healthy subjects studied. Anthropometric measurements bio‐impedance analysis performed as proportion...
ABSTRACT Background Increased arterial stiffness or arteriosclerosis, represents a physiological part of ageing. Atherosclerosis is process that does not affect the bed uniformly but has variable local distribution and frequently superimposed on stiffened vessels. We therefore addressed question whether any correlation exists between general characteristics wave reflection subclinical atherosclerosis as assessed by carotid intima‐media thickness (IMT) in sample healthy subjects. Methods A...
Introduction: Right heart changes and their association with exercise capacity, including sex differences, are still being investigated. We analysed right structure its relationship capacity parameters in amateur cyclists. Materials methods: A cross-sectional study involving 215 consecutive adult cyclists, who underwent resting transthoracic echocardiography a cardiopulmonary test (CPET) to exhaustion was performed. Results: The median age of participants 29 years (IQR 24–37), 71% them were...
Summary Background Irisin is a new adipo‐myokine, encoded by the FNDC 5 gene. Currently, there discussion regarding relation between thyroid function and irisin concentration. This prospective study assesses influence of thyrometabolic changes on serum concentration in association with altered muscle metabolism. performed large cohort patients affected severe hypo‐ or hyperthyroidism, as well expression gene tissue different pathologies. Methods The group comprised 119 newly diagnosed...
Hyper- and hypothyroidism are accompanied by altered metabolic rate, thermogenesis, body weight. The aim of this study was to estimate the relation between treatment-induced changes in thyroid function, accompanying composition patients with either severe hypo- or hyperthyroidism.Body analysis hormonal assessment were measured at initial diagnosis disorder, after three-month treatment, finally complete recovery from hyperthyroidism (n = 18) 27). Nonparametric Spearman correlation used...
Heart rate asymmetry is a phenomenon in which the contribution of heart decelerations to short-term variability greater than that accelerations, and accelerations long-term total decelerations. This has been established for short, stationary recordings, so our aim do it long recordings.In this paper, we analyze 87 long, 24 h electrocardiogram Holter recordings from healthy people. We show whole recording all types are observable, clear highly statistically significant. To local changes time,...
Aortic-brachial pulse pressure amplification (PPA) is a measure of arterial elasticity and it also an independent cardiovascular risk factor. The PPA mainly determined by age, height, central peripheral waveforms characteristics, including measures stiffness wave reflection.In this study, however, we demonstrate that significantly associated with indirect indices body fatness. As the fatness treatable, our findings might be used as reference for future studies on effects fat reduction...
The reduced form of nicotinamide adenine dinucleotide (NADH) is crucial in cellular metabolism. During hypoxia, NADH accumulation results from anaerobic cytoplasmic glycolysis and impaired mitochondrial function. This study aimed to compare the dynamic changes 460-nm forearm skin fluorescence, which reflects content, during transient ischaemia between healthy individuals patients with newly diagnosed, untreated essential hypertension (HA). Sixteen volunteers sixty-five HA underwent...
OBJECTIVE Diabetes increases the risk of all-cause mortality and sudden cardiac death (SCD). The exact mechanisms leading to in diabetes are not well known. We compared incidence appropriate shocks patients with versus without a prophylactic implantable cardioverter defibrillator (ICD) included retrospective EU-CERT-ICD registry. RESEARCH DESIGN AND METHODS RESULTS A total 3,535 from 12 European centers mean age 63.7 ± 11.2 years (82% males) at time ICD implantation were analysis. 995 (28%)...
The meritocratic thesis states that a strong association between individual merit and social rewvards is inherent in highly industrialized society. A simple model of allocation proposed applied to provide empirical assessment how far meritocracy? from reality. model, conceptualized as an ideal type meritocracy, incorporates the principle according which more educated persons do not have lower status than less ones. Assuming society should resemble its type, we formulated three testable...
Oxidative stress plays an important role in the pathogenesis of atherosclerosis. Advanced oxidation protein products (AOPP) are markers oxidative and mediators inflammation. Increased arterial stiffness is associated with increased risk cardiovascular mortality morbidity. The aim this study was to evaluate relationship between indirect marker AOPP level apparently healthy individuals.Arterial estimated use index (SI(DVP)) which significantly correlated age, mean blood pressure, body fat...
Abstract We demonstrate the resonant-like behaviour of cardiopulmonary system in healthy people occurring at natural low frequency oscillations 0.1 Hz, which are often visible continuous pressure waveform. These represent spontaneous oscillatory activity vasomotor centre and sometimes called Mayer waves. 10-second rhythms probably couple with forced breathing same cause observed resonance phenomenon. develop a new method to study this phenomenon, namely averaged Lomb-Scargle periodogram...
Left ventricular (LV) systolic function is often measured with echocardiography using LV ejection fraction (LVEF) or global longitudinal peak strain (GLPSS). Global wasted work (GWW), efficiency (GWE), and first-phase (LVEF-1) are newer indices. We examined these parameters in 45 healthy individuals 50 patients stable coronary artery disease (CAD), normal contractility, LVEF > 50%. Compared to individuals, CAD had similar but increased GLPSS GWW reduced GWE LVEF-1. The highest area under...