BPK 140 Lecture Notes - Lecture 8: Anorexia Nervosa, Basal Metabolic Rate, Hydrostatic Weighing
20 Apr 2016
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Document Summary
Medical definition: the weight at which ones health risk is the lowest. Dual- energy x- ray scan (dxa or dexa) Energy in energy out (should be balanced) Basal metabolic rate (bmr): determined by genetics, influenced by higher lean body mass, excersise, greater height and weight. Male gender, pregnancy, lactation, growth, fever, elevated thyroid hormone levels, stimulated drugs such as tobacco and caffeine. Physical activity: is the most variable component of energy expenditure. Hunger: your physiological drive to consume (influenced by 12 + internal signals) Appetite: your psychological drive to consume (influenced by sight, smell, thought of food) Satiety: the feeling of fullness you feel while eating that makes you stop (eating voluminous food, mixed-nutrient meals, fiber rich foods and eating slowly promotes satiety, it takes 20 min for you brain to receive the message its full) Eating more than you think you"re eating and enjoying it much less than you should.
