Results 351 to 360 of about 16,021,980 (396)
Some of the next articles are maybe not open access.
JAMA: The Journal of the American Medical Association, 1980
ABSTRACT To the Editor.— In The Journal (243:466, 1980), a small philosophical comment entitled "One Small Step for Mankind" caught my eye. The comments are lighthearted and do not deserve any harsh scientific rebuttal, but I would like to reply in the same light vein of thought to the oft-quoted concept, "We are all born with a certain number of heart-
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ABSTRACT To the Editor.— In The Journal (243:466, 1980), a small philosophical comment entitled "One Small Step for Mankind" caught my eye. The comments are lighthearted and do not deserve any harsh scientific rebuttal, but I would like to reply in the same light vein of thought to the oft-quoted concept, "We are all born with a certain number of heart-
openaire +2 more sources
Heart Rate As a Biomarker in Heart Failure: Role of Heart Rate Lowering Agents
American Journal of Therapeutics, 2017Heart failure (HF) is a common clinical condition affecting more than 5.8 million people in the United States, it remains the leading cause of death in the United States and worldwide. Ongoing challenges for biomarker identification include the need for objective assessment, measurement precision, and meaningful replication.
Ghazwan, Shaaya +2 more
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Effect of Early Bereavement on Heart Rate and Heart Rate Variability
The American Journal of Cardiology, 2012Early bereavement is associated with increased cardiovascular events. The mechanism, however, has not been well studied. We assessed whether bereavement is associated with an increased heart rate (HR) and decreased heart rate variability that might contribute to increased cardiovascular risk.
Thomas, Buckley +8 more
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Heart rate changes with exercise and voluntary heart rate acceleration
Biological Psychology, 1979The present study examined the relationship between heart rate (HR) changes accompanying isometric and isotonic exercises and HR changes during attempted voluntary HR acceleration. Substantial cardiac accelerations accompanied both types of exertion, with the isotonic exercise attracting the larger magnitude HR changes.
D, Carroll, L, Rhys-Davies
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Effect of Heart-Rate Control Training on Heart-Rate Discrimination
Perceptual and Motor Skills, 19784 subjects were exposed to discrimination-testing procedures before and after biofeedback training to increase and decrease their heart rates. Results indicated significant increases and decreases in heart rate, as well as a significant improvement in accuracy of discrimination.
W R, Marshall, L H, Epstein
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Heart Rate and Heart Rate Variability in Normal Young Adults
Journal of Cardiovascular Electrophysiology, 1994Heart Rate and Heart Rate Variability. Introduction: The relationships between heart rate (HR) and HR variability (HRV) are not simple. Because both depend on the autonomic nervous system (ANS), they are not independent variables. Technically, the quantification of HRV is influenced by the duration of the cardiac cycles.
P, Coumel, P, Maison-Blanche, D, Catuli
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A Practical Guide to the Interpretation of Cardiopulmonary Exercise Tests, 2021
semanticscholar +1 more source
semanticscholar +1 more source
Precise Heart-Rate Control and Heart-Rate Perception
Perceptual and Motor Skills, 1975R A, McFarland, C, Campbell
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