What is heart rate?

  • (noun): The rate at which the heart beats; usually measured to obtain a quick evaluation of a person's health.
    Synonyms: pulse, pulse rate

Heart Rate

Heart rate is the number of heartbeats per unit of time, typically expressed as beats per minute (bpm). Heart rate can vary as the body's need to absorb oxygen and excrete carbon dioxide changes, such as during physical exercise or sleep.

Read more about Heart Rate.

Some articles on heart rate:

Atrial Fibrillation - Diagnosis - Extended Evaluation - Exercise Stress Testing
... An exercise stress test will evaluate the individual's heart rate response to exertion and determine if the AV node blocking agents are contributing to the ...
Conconi Test
... maximum anaerobic and aerobic threshold heart rates ... The test measures a person's heart rates at different loads (e.g ... The points are plotted on a graph with heart rate on one axis and load^2 or heart rate on the other axis the graph's deflection point indicates the aerobic threshold ...
Heart Rate - As A Risk Factor
... A number of investigations indicate that faster resting heart rate has emerged as a new risk factor for mortality in homeothermic mammals, particularly cardiovascular ... Faster heart rate may accompany increased production of inflammation molecules and increased production of reactive oxygen species in cardiovascular system, in addition to increased mechanical ... There is a correlation between increased resting rate and cardiovascular risk ...
Standard Metabolic Rate - Cardiovascular Implications
... Heart rate is determined by the medulla oblongata and part of the pons, two organs located inferior to the hypothalamus on the brain stem ... Heart rate is important for basal metabolic rate and resting metabolic rate because it drives the blood supply, stimulating the Krebs cycle ... anaerobic threshold is defined as the energy utilization level of heart rate exertion that occurs without oxygen during a standardized test with a specific ...
Lobeta - β1 Blockade
... on the β1 adrenergic receptors in both the heart and the kidney ... leads to activation of protein kinase A (PKA), which alters the movement of calcium ions in heart muscle and increases heart rate ... Penbutolol blocks this and decreases heart rate, which lowers blood pressure ...

Famous quotes containing the words rate and/or heart:

    If you could choose your parents,... we would rather have a mother who felt a sense of guilt—at any rate who felt responsible, and felt that if things went wrong it was probably her fault—we’d rather have that than a mother who immediately turned to an outside thing to explain everything, and said it was due to the thunderstorm last night or some quite outside phenomenon and didn’t take responsibility for anything.
    D.W. Winnicott (20th century)

    And my heart is like nothing so much as a bowl
    Brimming over with quivering curds!
    Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)