Question

Illustrate the different components of energy expenditure. Discuss the factors which influence BMR.

24 Nov 2020
Answer :
Word Count : 1108

Energy expenditure concerns calories burned versus calories consumed. Imbalances between the two determine weight loss, gain or maintenance. Bodies that store too much energy become overweight. One component of your expenditure is basal metabolic rate -- the energy you burn when inactive. The other two components are activity thermogenesis, which are the calories burned during activity, and the thermic effect of foods, which concerns calories used to digest foods you eat.

Percentages of Components

If you were to make a pie chart illustrating total energy expenditure, or TEE, the largest wedge would be basal metabolic rate, or BMR, or the closely related resting metabolic rate. Both reflect energy expended while inactive.The Food and Agriculture Organization of the United Nations says BMR can range from 45 percent for people with a vigorous lifestyle to 70 percent for those who are sedentary. The Colorado Clinical and Translational Sciences Institute, a health and education consortium, says activity thermogenesis -- the burning of calories while moving -- is the second largest wedge of TEE. This is energy expended during sports, exercise and nonexercise activity thermogenesis, or NEAT, which ____ ______ ________ _______ ______ ___ ______ __________ ______.
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