FSN 101 Study Guide - Quiz Guide: Adipocyte, Ghrelin, Retina
23 Oct 2016
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Document Summary
Body weight results from a dynamic equilibrium between energy intake (ei) and energy expenditure (ee) The factors the govern ee and ei are complex, poorly understood and their effects. 3500 calories = 1 pound, so you have to burn 3500 calories to lose 1 pound. 1st law of thermodynamics- energy cant be created to destroyed. Units of measure- kilocalorie (kcal) = heat required to raise the temp of one kg of water. Used to measure the energy content of food. Food is dried and burn in a special chamber. Measured the temp increase in the water jacket of the instrument. ~60-70% of total energy needs heartburn, repression, body temp. Body size, body composition, lean, gender, age hormones, body temp, tobacco use, caffeine. Convert pounds to kilograms (2. 2 lbs = 1 kg) Gives an estimate of calories needs- can vary 25-30% between individuals. 30 minutes of moderate physical activity to reduce risk of developing a chronic disease.
