energy expenditure

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Related to energy expenditure: Basal energy expenditure, Total Energy Expenditure


(kcal) (kil'ō-kal'ŏr-ē)
The quantity of energy required to raise the temperature of 1 kg of water from 14.5-15.5°C; it is 1000 times the value of the small calorie.
Synonym(s): kilogram calorie, large calorie.


A unit of heat content or energy. The amount of heat necessary to raise 1 g of water from 14.5-15.5°C (small calorie). Calorie is being replaced by joule, the SI unit equal to 0.239 calorie.
See also: British thermal unit
[L. calor, heat]

energy expenditure

the amount of energy, measured in kilocalories or kilojoules, that an individual uses in a given time. 24-h energy expenditure can be divided into three components: basal metabolic rate (BMR), energy expenditure of physical activity or thermic effect of activity (TEA), and the thermic effect of food (TEF). See also diet-induced thermogenesis, metabolic equivalent, metabolic rate.
References in periodicals archive ?
The results were verified by setting independent variables for the color of light and dependent variables for energy expenditure and the time-budget value (expressed as appearance rate).
The primary objective of this study involved an examination of the association between the rates of activity counts and energy expenditure measured during walking in persons with MS compared with a control sample of adults without a chronic disease condition.
Basal energy expenditure (BEE) was calculated with the Institute of Medicine equation (2005).
The emphasis placed on gathering measurements of energy expenditure is demonstrated by the preference for researchers to convert all raw data concerning the individual components of FITT into one single measure of metabolic equivalents (METs).
Playing active video games increases energy expenditure in children.
Cook also reported that there were no correlations seen between increased body weight and total energy expenditure or between increased body weight and total energy expenditure after the researchers adjusted for age and body size.
There are three categories of energy expenditure that make up one's overall caloric burn each day.
6,7) Metabolic rate measurements produce a 'snapshot' of energy expenditure over a short period, which is then used to estimate the average rate of energy expenditure for the whole day.
The study measured the energy expenditure, calories burned and heart rate of five girls and seven boys, aged between 13 and 15, playing both an active and inactive console.
For instance, children now mature physically before they do psychosocially, and modern diets and lowered energy expenditure leave us susceptible to obesity and other problems.
She adds, "These factors raise the possibility that solutions required to reverse the rising prevalence of obesity must include societal reorganization, which would ultimately lead to decreased energy intake and increased energy expenditure by individuals.

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