- Heart rate
- The number of heart beats per unit time, usually per minute. The heart rate is based on the number of contractions of the ventricles (the lower chambers of the heart). The heart rate may be too fast (tachycardia) or too slow (bradycardia). The pulse is bulge of an artery from the wave of blood coursing through the blood vessel as a result of the heart beat. The pulse is often taken at the wrist to estimate the heart rate.
* * *heart rate n a measure of cardiac activity usu. expressed as number of beats per minute see maximum heart rate
* * *the number of contractions of the ventricles of the heart per unit of time (usually a minute). It usually corresponds to the pulse rate, but occasionally some of the contractions of the left ventricle fail to produce peripheral pulse waves, so that the rate of the pulse at the wrist is less than that of the heart.
Medical dictionary. 2011.
Look at other dictionaries:
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 exercise or sleep. The measurement of heart… … Wikipedia
heart rate — pulso dažnis statusas T sritis Kūno kultūra ir sportas apibrėžtis Kraujagyslėmis tekančių kairiojo širdies skilvelio išstumto kraujo bangų skaičius per minutę. Vidutinis pulso dažnis siekia 60–80 kartų per minutę. Pulso dažnis rodo funkcinę… … Sporto terminų žodynas
heart rate — noun Heart rate is used before these nouns: ↑monitor … Collocations dictionary
heart rate — noun the rate at which the heart beats; usually measured to obtain a quick evaluation of a person s health (Freq. 1) • Syn: ↑pulse, ↑pulse rate • Derivationally related forms: ↑pulse (for: ↑pulse), ↑ … Useful english dictionary
heart rate — /ˈhat reɪt/ (say haht rayt) noun the rate at which the heart beats … Australian English dictionary
heart rate — noun The number of heart beats per unit of time, usually expressed as beats per minute … Wiktionary
heart rate — see pulse … The new mediacal dictionary
Heart rate turbulence — (HRT) is the return to equilibrium of heart rate after a premature ventricular contraction (PVC). It consists of a brief speed up in heart rate, followed by a slow decrease back to the baseline rate. An important feature of HRT is that PVCs occur … Wikipedia
Heart rate variability — (HRV) is a measure of the beat to beat variations in heart rate. It is usually calculated by analyzing a time series of beat to beat intervals from the ECG or of beat to beat intervals derived from an arterial pressure tracing.Various measures of … Wikipedia
Heart rate monitor — This article refers to a device used by laypersons. For the article on the medical device performing a similar function, see Electrocardiography. A heart rate monitor is a device that allows a user to measure their heart rate in real time. It… … Wikipedia