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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Sjostrom, "Physical activity but not energy expenditure is reduced in obese adolescents: a case-control study," The American Journal of Clinical Nutrition, vol.
Total daily energy expenditure depends largely on the type, intensity and duration of physical activity; these activities play an important role in weight, physical conditioning and cardiac rehabilitation [15].
Anaerobic energy expenditure and mechanical efficiency during exhaustive leg press exercise.
Energy expenditure (kcals) was determined using the V[O.sub.2] data, assuming a constant of 5 kcal x [L.sup.-1] of [O.sub.2] consumed.
As primary outcome measures, the cohorts were assessed for their physical activity levels (monitored continuously by accelerometry) and resting energy expenditure (REE).
The results challenge current models of obesity that suggest Western lifestyles lead to decreased energy expenditure. The rate at which people across a wide range of lifestyles burn calories is approximately the same.
Our findings further support a role for estrogen in regulating body weight and energy expenditure, suggesting a benefit of estrogen supplementation in postmenopausal women."
Lifestyle was not shown to be a contributing factor to one's total daily energy expenditure. In fact, total energy expenditure was remarkably consistent across global cultures and economies, with researchers concluding it is perhaps "more a product of our common genetic inheritance than our diverse lifestyles".
"There is also a greater number of properties with electric heating - the single highest contributing factor to energy expenditure - and almost certainly a greater proportion of prepaid electricity supplies resulting from higher credit risks and unemployment factors."
The assumption of a strong association between accelerometer output and energy expenditure during dynamic physical activity [6-7] has been well tested in the general population [4,8-9], but not in persons with MS.
The authors of this paper evaluated the effects of overconsumption of low-, normal-, and high-protein diets on weight gain, energy expenditure, and body composition.
The objective of the study was to investigate the relationship between activity energy expenditure, an objective measurement of total activity, and the incidence of cognitive impairment.

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