Results 1 to 10 of about 1,713,483 (311)

Analysis of heart rate variability [PDF]

Bangabandhu Sheikh Mujib Medical University Journal, 2016
No abstract is ...
Noorzahan Begum
doaj   +4 more sources

Scaling graphs of heart rate time series in athletes demonstrate the VLF, LF and HF regions [PDF]

2006 Physiol. Meas. 27 N35-N39, 2006
Scaling analysis of heart rate time series has emerged as an useful tool for assessment of autonomic cardiac control. We investigate the heart rate time series of ten athletes (five males and five females), by applying detrended fluctuation analysis (DFA).
, Andreas Voss, Bonaduce D, Derek Abbott, Francis D P, Ho K K, Juergen Lock, Lars M Brechtel, Mathias Baumert, Willson K, Willson K   +10 more
arxiv   +3 more sources

How random is your heart beat? [PDF]

, 2006
We measure the content of random uncorrelated noise in heart rate variability using a general method of noise level estimation using a coarse grained entropy. We show that usually - except for atrial fibrillation - the level of such noise is within 5 - 15% of the variance of the data and that the variability due to the linearly correlated processes is ...
Baselli, Bayés da Luna, Cencini, Costa, Denton, Eke, Grassberger, Groome, He, Jan J. Żebrowski, Janusz A. Hołyst, Krzysztof Urbanowicz, Kuusela, Kuusela, Marwan, Naschitz, Rafał Baranowski, Stanley, Stanley, Stein, Stein, Thiel, Urbanowicz, Urbanowicz, Voss, Wei, Wu, Yulmetyev, Żebrowski, Żebrowski, Żebrowski   +30 more
arxiv   +4 more sources

RapidHRV: an open-source toolbox for extracting heart rate and heart rate variability [PDF]

PeerJ, 2022
Heart rate and heart rate variability have enabled insight into a myriad of psychophysiological phenomena. There is now an influx of research attempting using these metrics within both laboratory settings (typically derived through electrocardiography or
Peter A. Kirk, Alexander Davidson Bryan, Sarah N. Garfinkel, Oliver J. Robinson   +3 more
doaj   +5 more sources

RHRVEasy: Heart rate variability made easy. [PDF]

PLoS ONE
Heart Rate Variability (HRV) analysis aims to characterize the physiological state affecting heart rate, and identify potential markers of underlying pathologies.
Constantino A García, Sofía Bardají, Pablo Pérez-Tirador, Abraham Otero   +3 more
doaj   +2 more sources

Heart Rate Variability and Exceptional Longevity [PDF]

Frontiers in Physiology, 2020
Centenarians are the paradigm of human extreme longevity and healthy aging, because they have postponed, if not avoided, mayor age-related diseases. The purpose of this study was to investigate potential differences in resting heart rate variability (HRV)
Adrián Hernández-Vicente, Adrián Hernández-Vicente, David Hernando, David Hernando, Alejandro Santos-Lozano, Alejandro Santos-Lozano, Gabriel Rodríguez-Romo, Gabriel Rodríguez-Romo, Germán Vicente-Rodríguez, Germán Vicente-Rodríguez, Germán Vicente-Rodríguez, Germán Vicente-Rodríguez, Esther Pueyo, Esther Pueyo, Raquel Bailón, Raquel Bailón, Nuria Garatachea, Nuria Garatachea, Nuria Garatachea, Nuria Garatachea   +19 more
doaj   +8 more sources

Heart-Rate Variability—More than Heart Beats?

Frontiers in Public Health, 2017
Heart-rate variability (HRV) is frequently introduced as mirroring imbalances within the autonomous nerve system. Many investigations are based on the paradigm that increased sympathetic tone is associated with decreased parasympathetic tone and vice ...
Gernot Ernst
exaly   +3 more sources

Analysis of Heart Rate Variability and Implication of Different Factors on Heart Rate Variability

Current Cardiology Reviews, 2020
Background The heart is the central organ of the circulatory system, which maintains the flow of blood along with the transport of nutrients to different cells and tissues. A well-functioning cardiac state is a complicated mode of changeability.
Reena Tiwari, Ravindra Kumar, Sujata Malik, T. Raj, Punit Kumar   +4 more
semanticscholar   +4 more sources

Heart Rate Variability - A Historical Perspective [PDF]

Frontiers in Physiology, 2011
Heart rate variability (HRV), the beat-to-beat variation in either heart rate or the duration of the R-R interval – the heart period, has become a popular clinical and investigational tool.
George E Billman
doaj   +4 more sources

Pulse rate variability: a new biomarker, not a surrogate for heart rate variability

Journal of Physiological Anthropology, 2020
With the popularization of pulse wave signals by the spread of wearable watch devices incorporating photoplethysmography (PPG) sensors, many studies are reporting the accuracy of pulse rate variability (PRV) as a surrogate of heart rate variability (HRV).
Emi Yuda, Muneichi Shibata, Yuki Ogata, Norihiro Ueda, Tomoyuki Yambe, Makoto Yoshizawa, Junichiro Hayano   +6 more
doaj   +2 more sources