Results 11 to 20 of about 16,166,191 (388)
Heart-Rate Variability—More than Heart Beats?
Frontiers in Public Health, 2017 Heart-rate variability (HRV) is frequently introduced as mirroring imbalances within the autonomous nerve system. Many investigations are based on the paradigm that increased sympathetic tone is associated with decreased parasympathetic tone and vice ...
Gernot Ernst
doaj +2 more sources
Heart Rate Variability in Psychology: A Review of HRV Indices and an Analysis Tutorial
Italian National Conference on Sensors, 2021 The use of heart rate variability (HRV) in research has been greatly popularized over the past decades due to the ease and affordability of HRV collection, coupled with its clinical relevance and significant relationships with psychophysiological ...
Tam Pham +3 more
semanticscholar +1 more source
Italian National Conference on Sensors, 2022 The primary aim of this study was to examine the validity of six commonly used wearable devices, i.e., Apple Watch S6, Garmin Forerunner 245 Music, Polar Vantage V, Oura Ring Generation 2, WHOOP 3.0 and Somfit, for assessing sleep.
Dean J. Miller, C. Sargent, G. Roach
semanticscholar +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
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
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
Impact of Heart Rate Fragmentation on the Assessment of Heart Rate Variability
Applied 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
Frontiers 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
Heart Rate and Heart Rate Variability Change with Sleep Stage in Dairy Cows
Animals, 2021 Changes to the amount and patterns of sleep stages could be a useful tool to assess the effects of stress or changes to the environment in animal welfare research.
Laura B. Hunter +5 more
doaj +1 more source
Variability in heart rate recovery measurements over 1 year in healthy, middle-aged adults. [PDF]
, 2014 This study assessed the longer-term (12-month) variability in post-exercise heart rate recovery following a submaximal exercise test. Longitudinal data was analysed for 97 healthy middle-aged adults (74 male, 23 female) from 2 occasions, 12 months apart.
Carroll, S, Ingle, L, Mellis, MG
core +1 more source