- basal metabolism
- the minimum amount of energy expended by the body to maintain vital processes, e.g. respiration, circulation, and digestion. It is expressed in terms of heat production per unit of body surface area per day (basal metabolic rate – BMR), and for an average man the BMR is 1.7 Calories (7.115 kilojoules) per day. BMR may be determined by the direct method, in which the subject is placed in a respiratory chamber and the amount of heat evolved is measured, or (more normally) by the indirect method, based on the respiratory quotient. Measurements are best taken during a period of least activity, i.e. during sleep and 12–18 hours after a meal, under controlled temperature conditions. Various factors, such as age, sex, and particularly thyroid activity, influence the value of the BMR.
The new mediacal dictionary. 2014.
Look at other dictionaries:
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basal metabolism — noun the amount of energy required to maintain the body of an individual in a resting state • Hypernyms: ↑metabolism, ↑metabolic process * * * noun : the metabolism of an organism in the fasting and resting state when it uses just enough energy… … Useful english dictionary
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basal metabolism — noun Date: 1913 the turnover of energy in a fasting and resting organism using energy solely to maintain vital cellular activity, respiration, and circulation as measured by the basal metabolic rate … New Collegiate Dictionary
basal metabolism — Physiol. the minimal amount of energy necessary to maintain respiration, circulation, and other vital body functions while fasting and at total rest. [1910 15] * * * … Universalium
Basal Metabolism — The amount of heat given off by a person at rest in a comfortable environment; approximately 50 Btu per hour (Btu/h) … Energy terms
basal metabolism — ba′sal metab′olism n. phl the minimal amount of energy necessary to maintain respiration, circulation, and other vital body functions while fasting and at total rest • Etymology: 1910–15 … From formal English to slang
basal metabolism — /ˌbeɪsəl məˈtæbəlɪzəm/ (say .baysuhl muh tabuhlizuhm) noun the energy turnover of an organism during total rest … Australian English dictionary
basal metabolism — The basic rate of combustion by a person, usually measured after sleep and while resting … Herbal-medical glossary