FDNS 2050 Lecture Notes - Lecture 3: Resting Metabolic Rate, Basal Metabolic Rate, Doubly Labeled Water

• School: University of Georgia
• Department: Foods and Nutrition
• Course: FDNS 2050
• Professor: Jamie Cooper

Document Summary

Capacity to do metabolic work to actually move, dunk a basketball. Storage form of energy store chemical energy in our body (atp) Product of metabolism when we define a calorie it has to do with calories. Measurement of work is not the same as measurement of energy expenditure. Isometric muscle contraction; no work produced planks not moving but muscles are working. Various devices, such as smart phone apps, measure movement. Bomb measures energy expenditure oxidizes food product to find the calories in it. Direct calorimeter: bomb calorimeter, room calorimeter. Measurement of oxygen uptake and carbon dioxide production. Doubly labeled water technique: stable isotopes of hydrogen and oxygen are ingested, analysis of urine and blood for hydrogen and oxygen to measure carbon dioxide fluctuation. 1 gram calorie will increase the temperature of 1 gram of water 1 degree celsius. We shall use the __ , capitalized as calorie or as c, as the most common measure of energy in this text.