HSCI 1105 Lecture Notes - Lecture 14: Body Shape, Electric Current, Food Politics
10 Nov 2016
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Height to weight ration i: muscle weight more than fat, methods to measure percentage of body fat i. ii. iii. iv. Bioelectrical impedance: electric current flows and resistance is measure. Dual-energy x-ray absorption: beam of energy used to measure bone, fat and lean tissue. Air displacement using a bodpod: sit in unit and the change in air volume is measures v. Underwater weighing: weighed on land and then suspended in water, calculate body density, public health crisis of obesity i. ii. Occurs most frequently in developing and developed countries: societal pressure iii. Not just a cosmetic problem: affects all ages, public issue iv. Eating disorders: binge-eating disorders, night eating syndrome iv. Body shape dissatisfaction: obesity in the us i. ii. Statistics have increased over the last 30 years. 1: men : 2239 to 2455, women : 1534 to 1449 iii. Environmental changes: car vs walking, food politics.
