Results 31 to 40 of about 16,166,191 (388)
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
Circadian rhythm of heart rate and heart rate variability [PDF]
Archives of Disease in Childhood, 2000 Measurements of heart rate variability (HRV) are increasingly used as markers of cardiac autonomic activity.To examine circadian variation in heart rate and HRV in children.A total of 57 healthy infants and children, aged 2 months to 15 years, underwent ambulatory 24 hour Holter recording.
Massin, M. M. +4 more
openaire +2 more sources
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
Determinants of short-period heart rate variability in the general population [PDF]
, 2001 Decreased heart rate variability (HRV) is associated with a worse prognosis in a variety of diseases and disorders. We evaluated the determinants of short-period HRV in a random sample of 149 middle-aged men and 137 women from the general population ...
Bolte, H.-D. +6 more
core +1 more source
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
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 +4 more
semanticscholar +1 more source
Behaviour, heart rate, and heart rate variability in pigs exposed to novelty
Revista Brasileira de Zootecnia, 2016 In the present study, we investigated behavioural responses and determined parameters of heart rate variability (HRV) to elucidate a relative activation of autonomic nervous system (ANS) during baseline (10 min) and in response to potentially stressful ...
Manja Zupan +2 more
doaj +1 more source
Correlation of heart rate recovery and heart rate variability with atrial fibrillation progression
Journal of International Medical Research, 2021 Objective To examine the combination of heart rate recovery (HRR) and heart rate variability (HRV) in predicting atrial fibrillation (AF) progression. Methods Data from patients with a first detected episode of AF who underwent treadmill exercise testing
Gwang-Seok Yoon +8 more
doaj +1 more source
Neuroanatomical substrates for the volitional regulation of heart rate [PDF]
, 2015 The control of physiological arousal can assist in the regulation of emotional state. A subset cortical and subcortical brain regions are implicated in autonomic control of bodily arousal during emotional behaviors.
Asmundson +77 more
core +2 more sources