Results 11 to 20 of about 1,424,468 (388)

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

Variations on fetal heart rate variability [PDF]

The Journal of Physiology, 2016
Intrapartum electronic fetal monitoring (EFM) is widely used throughout the developed and developing world. This practice is based on the understanding that fetal heart rate (FHR) is sensitive to hypoxia. During labour, the fetus may be exposed to acute hypoxia during uterine contractions or intrapartum insults, and has well‐established cardiovascular ...
Caroline J. Shaw, Caroline J. Shaw, Christoph Lees, Dino A. Giussani   +3 more
openaire   +11 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

Can Wearable Devices Accurately Measure Heart Rate Variability? A Systematic Review

Folia Medica, 2018
Background: A growing number of wearable devices claim to provide accurate, cheap and easily applicable heart rate variability (HRV) indices. This is mainly accomplished by using wearable photoplethysmography (PPG) and/or electrocardiography (ECG ...
Georgiou Konstantinos, Larentzakis Andreas V., Khamis Nehal N., Alsuhaibani Ghadah I., Alaska Yasser A., Giallafos Elias J.   +5 more
doaj   +2 more sources

Heart rate variability in anaesthesiology – narrative review

Anaesthesiology Intensive Therapy, 2023
Heart rate variability (HRV) is a measure that shows the variation in time between consecutive heartbeats – a physiological phenomenon controlled by the autonomic nervous system.
Magdalena Wujtewicz, Radoslaw Owczuk
doaj   +1 more source

Heart rate profiles and heart rate variability during scuba diving

Swiss Medical Weekly, 2021
AIMS: The aim of the present study was to describe heart rate profiles and heart rate variability patterns in non-selected scuba divers of different ages under non-experimental real-world conditions.
Claudine Schaller, Andrea Fümm, Simon Bachmann, Luca Oechslin, Yoshi Nakahara, Roger Melliger, Patric Biaggi, Christophe Alain Wyss   +7 more
doaj   +1 more source

Donkey Heart Rate and Heart Rate Variability: A Scoping Review

Animals, 2023
Heart rate (HR) and heart rate variability (HRV) are commonly used physiological measures in animals. While several studies exist on horse HRV, less information is available for donkeys.
Marta De Santis, Samanta Seganfreddo, Alberto Greco, Simona Normando, Daniele Benedetti, Franco Mutinelli, Laura Contalbrigo   +6 more
doaj   +1 more source