Results 21 to 30 of about 1,713,582 (410)

Statistical process control to monitor use of a web‐based autoplanning tool

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the use of statistical process control (SPC) for quality assurance of an integrated web‐based autoplanning tool, Radiation Planning Assistant (RPA). Methods Automatically generated plans were downloaded and imported into two treatment planning systems (TPSs), RayStation and Eclipse, in which they were recalculated using ...
Hunter Mehrens   +5 more
wiley   +1 more source

Trends in Heart-Rate Variability Signal Analysis

open access: yesFrontiers in Digital Health, 2021
Heart rate variability (HRV) is the rate of variability between each heartbeat with respect to time. It is used to analyse the Autonomic Nervous System (ANS), a control system used to modulate the body's unconscious action such as cardiac function ...
Syem Ishaque, N. Khan, S. Krishnan
semanticscholar   +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

Real-time Webcam Heart-Rate and Variability Estimation with Clean Ground Truth for Evaluation [PDF]

open access: yesApplied Sciences. 2020; 10(23):8630, 2020
Remote photo-plethysmography (rPPG) uses a camera to estimate a person's heart rate (HR). Similar to how heart rate can provide useful information about a person's vital signs, insights about the underlying physio/psychological conditions can be obtained from heart rate variability (HRV).
arxiv   +1 more source

Indices of heart rate variability and performance during a response-conflict task are differently associated with ADHD and autism [PDF]

open access: yes, 2002
Objective. We investigated autonomic arousal, attention and response conflict, in ADHD and autism. Method. Heart rate variability (HRV), and behavioural and electrophysiological indices of performance, were recorded during a task with low and high levels
Arora, Iti   +4 more
core   +2 more sources

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

Case study: Monitoring the effectiveness of aromatherapeutic breathing with heart rate variability biofeedback

open access: yesHeart and Mind, 2021
Heart rate variability (HRV) can be used as an objective measure of mental health and workplace stress. Workplace stress is associated with poor performance and organizations desire optimal performance from employees.
Adrian Low, Stella Chan
doaj   +1 more source

MENTAL STATUS AND HEART RATE VARIABILITY [PDF]

open access: yes, 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

The effect of age on the heart rate variability of healthy subjects

open access: yesPLoS ONE, 2021
In this work we study the characteristics of heart rate variability (HRV) as a function of age and gender. Our analysis covers a wider age range than that studied so far.
Leopoldo Garavaglia   +4 more
semanticscholar   +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

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