PHRM 461 Lecture Notes - Lecture 6: Glycemic Load, Dietary Reference Intake, Acesulfame Potassium
Document Summary
Calorie = kilocalorie = 1000 calories calorie = the amount of energy it takes to heat one g of water 1oc at one atmosphere. Some movement allowed (dressing, walking) prior to testing. Rest time of 20 mins prior to test with this rest there is usually only a small difference between rmr and bmr might be a little higher than bmr. Has the greatest influence on total energy expenditure (tee) Both are largely determined by body size, body composition, but also by gender and age. = the metabolic activity necessary to sustain life (respiration, body temp, heart beat, etc. ) Measurement direct calorimetry measures heat released from the subject. Bmr equations for healthy ppl (do(cid:374)"t memorize equations) Indirect calorimetry via use of a metabolic cart to measure rmr. To provide estimates when a measured rmr is not possible. Harris-benedict equation for bmr: over predicts (roughly 5% in males, up to 15% in females; more so in obese (bmi >30))
