Results 11 to 20 of about 13,581,252 (331)
Postoperative effects of bariatric surgery on heart rate recovery and heart rate variability [PDF]
Kosin Medical Journal, 2022 Background Several studies have reported associations between obesity and autonomic dysfunction. However, little research has investigated the effect of bariatric surgery on heart rate recovery (HRR) in the treadmill test and heart rate variability (HRV)
Han Su Park +6 more
doaj +1 more source
A comprehensive accuracy assessment of Samsung smartwatch heart rate and heart rate variability
PLoS ONE, 2022 Background Photoplethysmography (PPG) is a low-cost and easy-to-implement method to measure vital signs, including heart rate (HR) and pulse rate variability (PRV) which widely used as a substitute of heart rate variability (HRV).
Fatemeh Sarhaddi +7 more
doaj +2 more sources
Influence of a 100-mile ultramarathon on heart rate and heart rate variability
BMJ Open Sport & Exercise Medicine, 2021 Aims This study aimed to investigate the impact of an ultramarathon (UM) with a distance of 100 miles on heart rate (HR) and heart rate variability (HRV).Methods 28 runners (25 men and 3 women) underwent 24-hour Holter ECG monitoring 1 week before the UM,
Bernd Wolfarth +6 more
doaj +1 more source
An Overview of Heart Rate Variability Metrics and Norms
Frontiers in Public Health, 2017 Healthy biological systems exhibit complex patterns of variability that can be described by mathematical chaos. Heart rate variability (HRV) consists of changes in the time intervals between consecutive heartbeats called interbeat intervals (IBIs).
F. Shaffer, J. Ginsberg
semanticscholar +1 more source
Investigating sources of inaccuracy in wearable optical heart rate sensors
npj Digital Medicine, 2020 As wearable technologies are being increasingly used for clinical research and healthcare, it is critical to understand their accuracy and determine how measurement errors may affect research conclusions and impact healthcare decision-making. Accuracy of
Brinnae Bent +3 more
semanticscholar +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.
Krystel Maeyns +4 more
openaire +3 more sources
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
doaj +1 more source
Fetal Heart Rate Fragmentation
Frontiers in Pediatrics, 2021 Intrapartum fetal monitoring's primary goal is to avoid adverse perinatal outcomes related to hypoxia/acidosis without increasing unnecessary interventions.
Matilde Costa +6 more
doaj +1 more source
Heart rate variability: origins, methods, and interpretive caveats.
Psychophysiology, 1997 Components of heart rate variability have attracted considerable attention in psychology and medicine and have become important dependent measures in psychophysiology and behavioral medicine.
G. Berntson +10 more
semanticscholar +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