Results 11 to 20 of about 3,462,595 (345)

Influence of a 100-mile ultramarathon on heart rate and heart rate variability

open access: yesBMJ 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

Postoperative effects of bariatric surgery on heart rate recovery and heart rate variability [PDF]

open access: yesKosin 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

open access: yesPLoS 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

The relation of ambulatory heart rate with all-cause mortality among middle-aged men : a prospective cohort study [PDF]

open access: yes, 2015
The aim of this study was to investigate the association between average 24-hour ambulatory heart rate and all-cause mortality, while adjusting for resting clinical heart rate, cardiorespiratory fitness, occupational and leisure time physical activity as
Clays, Els   +7 more
core   +7 more sources

Addition of 24‐Hour Heart Rate Variability Parameters to the Cardiovascular Health Study Stroke Risk Score and Prediction of Incident Stroke: The Cardiovascular Health Study

open access: yesJournal 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

Circadian rhythm of heart rate and heart rate variability [PDF]

open access: yesArchives 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

Impact of Heart Rate Fragmentation on the Assessment of Heart Rate Variability

open access: yesApplied Sciences, 2020
Heart rate fragmentation (HRF) is a type of sinoatrial instability characterized by frequent (often every beat) appearance of inflection in the R-R interval time series, despite the electrocardiograms appearing to be sinus rhythm.
Junichiro Hayano   +3 more
doaj   +1 more source

Fetal Heart Rate Fragmentation

open access: yesFrontiers 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 and blood pressure monitoring in heart failure. [PDF]

open access: yes, 2019
It has been long known that incessant tachycardia and severe hypertension can cause heart failure (HF). In recent years, it has also been recognized that more modest elevations in either heart rate (HR) or blood pressure (BP), if sustained, can be a risk
Coats, AJS   +4 more
core   +1 more source

A Methodical Approach to Scrutinize the Role of Body Mass Index in Heart Rate Increment and Recovery

open access: yesJournal of Gandhara Medical and Dental Sciences, 2022
OBJECTIVES Heart rate (HR) is a crucial health indicator and is also one of the health factors we need to pay explicit attention to. Body Mass Index (BMI) is considered a cofactor in heart-related issues like heart rate increment and recovery. Thus a
Muhammad Haidar Zaman   +6 more
doaj   +1 more source

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