Scale Specific and Scale Independent Measures of Heart Rate Variability as Risk Indicators
نویسندگان
چکیده
Y. Ashkenazy, M. Lewkowicz, J. Levitan, S. Havlin, K. Saermark, H. Moelgaard, P.E. Bloch Thomsen, M. Moller, U. Hintze, and H. Huikuri (a) Dept. of Physics, Bar-Ilan University, Ramat-Gan, Israel (b) Gonda Goldschmied Center, Bar-Ilan University, Ramat-Gan, Israel (c) Dept. of Physics, College of Judea and Samaria, Ariel, Israel (d) Dept. of Physics, The Technical University of Denmark, Lyngby, Denmark (e) Dept. of Cardiology, Skejby Sygehus, Aarhus University Hospital, Aarhus, Denmark (f) Dept of Cardiology, Amtssygehuset i Gentofte, Copenhagen University Hospital, Denmark (g) Inst. Clin. Res./Cardiology, University of Southern Denmark, Odense, Denmark (h) Div. Cardiology, Dept. of Medicine, University of Oulu, Finland (September 20, 1999)
منابع مشابه
Indicators and Predictors of Sleepiness
6 LIST OF ORIGINAL PAPERS 7 LIST OF ABBREVIATIONS 8 INTRODUCTION 9 AIMS 12 BACKGROUND 13 Sleep 13 A model of sleep regulation 13 Sleep EEG and sleep stages 14 Sleep cycles 15 Sleepiness 16 Definitions 16 Prevalence of sleepiness 17 Sleep deprivation 18 The Circadian rhythm 19 The Sleep debt 20 Shift work and sleepiness 22 The Countermeasures 23 Sleep, naps or breaks as countermeasure 23 Drugs a...
متن کاملReceiver-Operating-Characteristic Analysis Reveals Superiority of Scale-Dependent Wavelet and Spectral Measures for Assessing Cardiac Dysfunction
Receiver-operating-characteristic analysis was used to assess the suitability of various heart-rate variability (HRV) measures for correctly classifying electrocardiogram records of varying lengths as normal or revealing the presence of heart failure. Scale-dependent HRV measures were found to be substantially superior to scale-independent measures (scaling exponents) for discriminating the two...
متن کاملThe Effects of Heart Rate Variability on Reading Performance among Iranian EFL Learners
Psychophysiological studies and MRI neuro-imaging findings provide evidence that heart rate variability (HRV) which is in control of our emotions affects our brain cognitive centers. It has been shown that coherent heart-brain interaction can change the pattern of the afferent cardiac input that is sent to the brain. For this purpose, the Institute of HeartMath (IHM) has proposed a kind of biof...
متن کاملHeart Rate Variability: Measures and Models
We focus on various measures of the fluctuations of the sequence of intervals between beats of the human heart, and how such fluctuations can be used to assess the presence or likelihood of cardiovascular disease. We examine sixteen such measures and their suitability for correctly classifying heartbeat records of various lengths as normal or revealing the presence of cardiac dysfunction, parti...
متن کاملComparison of the effect of aerobic exercise in water with two different temperatures with outside water environment on the index of very low frequency waves of heart rate variability in active young men
Introduction and purpose: Cardiac response to body core temperature variation measured with the very low-frequency parameter of heart rate variability. The aim of this study was to investigate the variability of very low frequency due to different temperatures of aerobic training in water and dry. Materials and methods: 40 academic active male were selected as research subjects. Then, all subje...
متن کامل