Results 81 to 90 of about 824,033 (337)

Heart Rate Variability and Pulse Rate Variability: Do Anatomical Location and Sampling Rate Matter?

open access: yesSensors
Wearable technology and neuroimaging equipment using photoplethysmography (PPG) have become increasingly popularized in recent years. Several investigations deriving pulse rate variability (PRV) from PPG have demonstrated that a slight bias exists ...
Joel S. Burma   +7 more
doaj   +1 more source

Heart Rate Variability in Dental Science

open access: yesFrontiers in Medicine, 2019
Dentistry has made progress as a profession by integration with both medicine and other human sciences, especially when it uses empirical metrics to study process and outcome variables. Notably, progress in our understanding of genomic, biomic, and other
Robert L. Drury   +2 more
doaj   +1 more source

Prediction of VO\u3csub\u3e2\u3c/sub\u3e Peak Using Sub-Maximum Bench Step Test in Children [PDF]

open access: yes, 2011
The purpose of this study was to develop a valid prediction of maximal oxygen uptake from data collected during a submaximum bench stepping test among children ages 8-12 years.
Jacks, Dean E   +2 more
core   +1 more source

Heart Rate Variability: A possible machine learning biomarker for mechanical circulatory device complications and heart recovery [PDF]

open access: yes, 2020
Cardiovascular disease continues to be the number one cause of death in the United States, with heart failure patients expected to increase to \u3e8 million by 2030.
Aras, Shravan   +2 more
core   +1 more source

Time Series Analysis using Embedding Dimension on Heart Rate Variability [PDF]

open access: yes, 2018
Heart Rate Variability (HRV) is the measurement sequence with one or more visible variables of an underlying dynamic system, whose state changes with time. In practice, it is difficult to know what variables determine the actual dynamic system.
Abarbanel   +14 more
core   +2 more sources

Developing evidence‐based, cost‐effective P4 cancer medicine for driving innovation in prevention, therapeutics, patient care and reducing healthcare inequalities

open access: yesMolecular Oncology, EarlyView.
The cancer problem is increasing globally with projections up to the year 2050 showing unfavourable outcomes in terms of incidence and cancer‐related deaths. The main challenges are prevention, improved therapeutics resulting in increased cure rates and enhanced health‐related quality of life.
Ulrik Ringborg   +43 more
wiley   +1 more source

Influence of heart failure severity on heart rate variability [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2005
Introduction. Autonomic regulation of cardiovascular functions in congestive heart failure is characterised by enhanced sympathetic and diminished parasympathetic activity.
Zamaklar-Trifunović Danijela   +8 more
doaj   +1 more source

Problem behavior and heart rate reactivity in adopted adolescents: Longitudinal and concurrent relations. [PDF]

open access: yes, 2008
The present longitudinal study examined resting heart rate and heart rate variability and reactivity to a stressful gambling task in adopted adolescents with aggressive, delinquent, or internalizing behavior problems and adopted adolescents without ...
Achenbach T. M.   +18 more
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

open access: yesMolecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff   +11 more
wiley   +1 more source

Heart rate recovery after exercise: relations to heart rate variability and complexity

open access: yesBrazilian Journal of Medical and Biological Research, 2002
Physical exercise is associated with parasympathetic withdrawal and increased sympathetic activity resulting in heart rate increase. The rate of post-exercise cardiodeceleration is used as an index of cardiac vagal reactivation.
M. Javorka   +3 more
doaj   +1 more source

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