Results 31 to 40 of about 16,021,980 (396)
Journal of the American Medical Association (JAMA), 2020 Importance There is little evidence to support selection of heart rate control therapy in patients with permanent atrial fibrillation, in particular those with coexisting heart failure. Objective To compare low-dose digoxin with bisoprolol (a β-blocker)
D. Kotecha +16 more
semanticscholar +1 more source
Interaction between heart rate variability and heart rate in pediatric population.
Frontiers in Physiology, 2015 Background: Heart rate variability (HRV) is primarily heart rate (HR) dependent, and therefore, different HR may exert different impact on HRV. The objectives of the study were to evaluate the effect of HR on HRV in children and to determine whether HRV ...
Jakub Sławomir Gąsior +5 more
doaj +1 more source
Stress and Heart Rate Variability: A Meta-Analysis and Review of the Literature
Psychiatry Investigation, 2018 Objective Physical or mental imbalance caused by harmful stimuli can induce stress to maintain homeostasis. During chronic stress, the sympathetic nervous system is hyperactivated, causing physical, psychological, and behavioral abnormalities. At present,
Hye-Geum Kim +4 more
semanticscholar +1 more source
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
core +1 more source
Interaction between Heart Rate and Heart Rate Variability [PDF]
Annals of Noninvasive Electrocardiology, 2014 Heart rate variability (HRV) is significantly associated with average heart rate (HR), therefore, HRV actually provides information on two quantities, that is, on HR and its variability. It is difficult to conclude which of these two plays a principal role in the HRV clinical value, or in other words, what is the HR contribution to the clinical ...
openaire +2 more sources
Heart rate recovery after exercise: relations to heart rate variability and complexity
Brazilian Journal of Medical and Biological Research, 2002 Physical exercise is associated with parasympathetic withdrawal and increased sympathetic activity resulting in heart rate increase. The rate of post-exercise cardiodeceleration is used as an index of cardiac vagal reactivation.
M. Javorka +3 more
doaj +1 more source
A pilot study of patch Holter electrocardiograph recordings in healthy cats [PDF]
Open Veterinary Journal, 2022 Background: A patch Holter electrocardiograph (P-Holter) is cordless, making it lightweight unlike the conventional Holter electrocardiograph (C-Holter). A P-Holter can also take continuous measurements. For up to 14 days without replacing the battery or
Mizuki Ogawa +5 more
doaj +1 more source
Physiological Measurement, 2020 Heart rate variability has been largely used for the assessment of cardiac autonomic activity, due to the direct relationship between cardiac rhythm and the activity of the sympathetic and parasympathetic nervous system.
E. Mejía-Mejía +3 more
semanticscholar +1 more source
Fitbit Charge HR Wireless Heart Rate Monitor: Validation Study Conducted Under Free-Living Conditions [PDF]
, 2017 Background: Many modern smart watches and activity trackers feature an optical sensor that estimates the wearer’s heart rate. Recent studies have evaluated the performance of these consumer devices in the laboratory. Objective: The objective of our study
Gorny, Alexander Wilhelm +3 more
core +1 more source
Wearable radio-frequency sensing of respiratory rate, respiratory volume, and heart rate
npj Digital Medicine, 2020 Many health diagnostic systems demand noninvasive sensing of respiratory rate, respiratory volume, and heart rate with high user comfort. Previous methods often require multiple sensors, including skin-touch electrodes, tension belts, or nearby off-the ...
Pragya Sharma +4 more
semanticscholar +1 more source