NUTR 3210 Lecture Notes - Lecture 6: Calorimetry, Nutrient, Horse Length
4 Feb 2017
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3 primary components to energy expenditure: basal metabolic rate (bmr); 60-80, thermic effect of food (same thing as hif); 10-20% usage by body, physical activity energy expenditure (paee); 30-40% Thermic regulation: can be regulated by clothes so it"s not usually factored in. Is measured: shortly after waking, post-absorptive state, lying down, completely relaxed, comfortable room temperature. Must be measured in this way to get rid of the thermic effect of food and the enrgy expenditure of exercise. Tissues most reflective of bmr: bone and muscle (fat free mass tissues) Calculation: bmr = a x [m^0. 75] kcal/day {first equation, based on metabolic rate, a = metabolic active tissue (muscle and bone) Bmr = 70 x [65kg^0. 75] = 1602 kcal. Do(cid:374)"t (cid:374)eed to k(cid:374)o(cid:449) these e(cid:395)uatio(cid:374)s just k(cid:374)o(cid:449) ho(cid:449) the(cid:455) (cid:272)usto(cid:373)ize to i(cid:374)di(cid:448)iduals. The equations differ for men and women. Resting energy expenditure (rer) vs bmr is more crude: its not as accurate as bmr.
