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Heart rate and heart rate variability in emergency medicine
The American Journal of Emergency Medicine, 2020Tachycardia may be indicative of mental stress, which in turn can decrease performance, reduce information processing capacity, and hinder memory recall. The objective of this study is to examine heart rate trends present among emergency medicine trainees over a standard emergency room shift to measure the frequency and severity of stress experienced ...
Shane Jenks +5 more
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Current Opinion in Cardiology, 2016
Resting heart rate has long been thought to be a risk factor in cardiovascular disease and a prognostic factor in heart failure. β-Blockers were originally used in heart failure for their heart rate control abilities. However, they also have negative inotropic effects contributing to their overall benefit.
Alexander B. Zhai +2 more
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Resting heart rate has long been thought to be a risk factor in cardiovascular disease and a prognostic factor in heart failure. β-Blockers were originally used in heart failure for their heart rate control abilities. However, they also have negative inotropic effects contributing to their overall benefit.
Alexander B. Zhai +2 more
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Mental load, heart rate and heart rate variability
Psychologische Forschung, 1970"Several investigators have shown that diminished sinus arrhythmia can be seen as an indication of increased mental load. The present experiment deals with the influence of different levels of mental load, operationalized as the number of binary choices per minute, on the regularity of the heart rate. Also . . .
Blitz, P.S., Hoogstraten, J., Mulder, G.
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Heart Rate and Heart-Rate Variability: An Attempt to Clarify
Perceptual and Motor Skills, 19682 experiments were conducted to investigate a possible relationship of heart rate among and within individuals and to investigate the relationship between HR level and two temporal measures of HR variability. In Exp. 1 records for 18 normal male volunteers yielded a linear relationship between the autocorrelation and HR level which was confirmed by ...
John T. Scarbrough, J. Alan Burdick
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Heart rate perception and the voluntary control of heart rate
Biological Psychology, 1980Heart rate perception was assessed in two sets of trials by having subjects set an intermittent visual pulse to match their heart rates. Just prior to matching subjects were required to either hyperventilate, hypoventilate or breathe normally to encourage a range of cardiac levels.
Douglas Carroll, Jennifer Whellock
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Heart Rate Perception and Heart Rate Control
Psychophysiology, 1975ABSTRACTTwenty‐one subjects look the Autonomic Perception Questionnaire (APQ) and later were given another test of ability to perceive heart activity. The second test involved subjects' tracking of their own heart rates (HR). They were then tested for ability to increase and decrease HR from their resting baseline levels.
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The Effects of Specific Respiratory Rates on Heart Rate and Heart Rate Variability
Applied Psychophysiology and Biofeedback, 2003In this study respiratory rates of 3, 4, 6, 8, 10, 12, and 14 breaths per minute were employed to investigate the effects of these rates on heart rate variability (HRV). Data were collected 16 times at each respiratory rate on 3 female volunteers, and 12 times on 2 female volunteers.
Paul M. Lehrer, Hye-Sue Song
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Heart rate and heart rate variability, a pharmacological target
Cardiovascular Drugs and Therapy, 1997Heart rate varies with respiration, blood pressure, emotion, etc., and heart rate variability (HRV) is presently one of the best indices to predict fatal issues in cardiac failure and after myocardial infarction. HRV depends on various reflexes. In addition, parallel studies of HRV and the myocardial adrenergic and muscarinic transduction system in ...
François Carré +11 more
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Annals of Internal Medicine, 1993
To present an overview of the applicability of heart rate variability measurements in medicine.During a 4-year period all new papers concerning heart rate variability were collected. A selection of the most recent publications in the presented research area was used for this review.The amount of short- and long-term variability in heart rate reflects ...
C.M.A. van Ravenswaaij-Arts +4 more
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To present an overview of the applicability of heart rate variability measurements in medicine.During a 4-year period all new papers concerning heart rate variability were collected. A selection of the most recent publications in the presented research area was used for this review.The amount of short- and long-term variability in heart rate reflects ...
C.M.A. van Ravenswaaij-Arts +4 more
openaire +3 more sources