Results 11 to 20 of about 824,033 (337)
Circadian rhythm of heart rate and heart rate variability in pregnancy [PDF]
npj Women's HealthThe autonomic nervous system (ANS) regulates physiological changes during pregnancy, supporting fetal development and homeostasis. Heart rate (HR) and heart rate variability (HRV) are well-established, non-invasive biomarkers of ANS function.
Mahkameh Rasouli +8 more
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Annals of Noninvasive Electrocardiology, 1996 Heart rate variability (HRV) provides a non-invasive means of quantifying cardiac autonomic activity. It has been shown to be a powerful predictor of arrhythmia related complications in patients surviving the acute phase of myocardial infarction. This article highlights some of the important new clinical applications of this technology and provides a ...
Jeffrey N. Rottman +2 more
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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
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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 +7 more
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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 +6 more
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FUZZY LOGIC APPROACH FOR HEART RATE VARIABILITY
Journal of V. N. Karazin Kharkiv National University: Series Medicine, 2021 Intrioution. The heart rate variability (HRV) is based on measuring (time) intervals between R-peaks (of RR-intervals) of an electrocardiogram (ECG) and plotting a rhythmogram on their basis with its subsequent analysis by various mathematical methods ...
Alexander Martynenko +3 more
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Heart rate variability analysis [PDF]
Acta Physiologica Hungarica, 2001 The expansion of heart rate variability analysis has been facilitated by the remarkable development of computer sciences and digital signal processing during the last thirty years. The beat-to-beat fluctuation of the heart rate originates from the momentary summing of sympathetic and parasympathetic influences on the sinus node.
Hejjel, L., Gál, I.
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Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017 BackgroundHeart rate variability (HRV) characterizes cardiac autonomic functioning. The association of HRV with stroke is uncertain. We examined whether 24‐hour HRV added predictive value to the Cardiovascular Health Study clinical stroke risk score (CHS‐
Rohan K. Bodapati +4 more
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MENTAL STATUS AND HEART RATE VARIABILITY [PDF]
, 2008 The results let us suppose that there are at least three periodical phenomena of HRV in frequency range related with mental status. Two of them have not been discovered and physiologically explained yet.
Mukhin, Dr Valery
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Variability in heart rate recovery measurements over 1 year in healthy, middle-aged adults. [PDF]
, 2014 This study assessed the longer-term (12-month) variability in post-exercise heart rate recovery following a submaximal exercise test. Longitudinal data was analysed for 97 healthy middle-aged adults (74 male, 23 female) from 2 occasions, 12 months apart.
Carroll, S, Ingle, L, Mellis, MG
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