IPHY 2420 Lecture Notes - Lecture 2: Weight Loss, Built Environment, Blood Sugar
6 Mar 2016
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Document Summary
What defines overweight and obesity: overweight- extra weight from bone, muscle, body fat, or water, obesity- excessive and unhealthy amounts of body fat, 69% of americans are overweight or obese. Body water, mineral-rich tissues, protein-rich tissues (all but fat: total body fat. Adipose tissue (where fat is located is critical) Essential fat in cell membranes, certain bones, and nervous tissue (some fat is essential) Energy balance (examine on weekly basis, intake vs. output: output: Basal and resting metabolism- the energy it takes to keep you alive, what 2000 calorie diet is based off of. Thermic effect of food (tef)- body uses energy to break down and metabolize food. Nonexercise activity thermogenesis (neat)- not exactly physical activity fidgeting or shaking foot, can burn up to 700 calories doing this. Basal and resting metabolism: metabolism: sum of all chemical reactions in living cells (anabolic or catabolic, minimum number of calories used to keep you alive after fasting/resting after 12 hrs.
