Results 1 to 10 of about 14,108,201 (350)

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

A comprehensive accuracy assessment of Samsung smartwatch heart rate and heart rate variability.

open access: yesPLoS ONE, 2022
BackgroundPhotoplethysmography (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

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

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

An Overview of Heart Rate Variability Metrics and Norms

open access: yesFrontiers 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

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

Effect of Somatic Experiencing Resiliency-Based Trauma Treatment Training on Quality of Life and Psychological Health as Potential Markers of Resilience in Treating Professionals

open access: yesFrontiers in Neuroscience, 2018
Background: Individuals who treat trauma are at significant risk of vicarious traumatization and burnout. Somatic Experiencing® (SE®) is a resiliency-focused trauma treatment modality designed to address autonomic nervous system (ANS) dysregulation and ...
Neal E. Winblad   +2 more
doaj   +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

Heart rate and respiratory rate influence on heart rate variability repeatability: effects of the correction for the prevailing heart rate

open access: yesFrontiers in Physiology, 2016
Background: Since heart rate variability (HRV) is associated with average heart rate (HR) and respiratory rate (RespRate), alterations in these parameters may impose changes in HRV.
Jakub Sławomir Gąsior   +5 more
doaj   +1 more source

Modelling heart rate kinetics. [PDF]

open access: yesPLoS ONE, 2015
The objective of the present study was to formulate a simple and at the same time effective mathematical model of heart rate kinetics in response to movement (exercise).
Maria S Zakynthinaki
doaj   +1 more source

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