NTDT200 Lecture Notes - Lecture 11: Dual-Energy X-Ray Absorptiometry, Weight Loss, Menopause

• School: University of Delaware
• Department: Nutrition and Dietetics
• Course: NTDT200
• Professor: all

Document Summary

Excessive body fat: enlarged fat cells produce excess hormones and hormone like messengers, hormones cause low grade inflammation. Biology of hormone: short-term system, mediated by hormones, ghrelin-gain, mediated by stomach pressure, regulates hunger and satiety. Energy expenditure: total energy expenditure, basel metabolism, thermic effect of food, activity energy expenditure. Basel metabolic rate: factors that affect bmr, fat free mass, age, sex, growth, hormones, starvation, illness, pregnancy, ethnicity, smoking, sleep, caffeine. Activity energy expenditure: nonexercise activity thermogenesis (neat)- activities of daily living. What is a healthy body weight: body mass index (bmi, not used for, pregnant and lactating women, athletes, adults >65. Waist circumference: estimator of abdominal obesity, waist circumference exceeds 35 inches in women, wast circumference exceeds 40 inches in men, visceral fat leads to cardiovascular disease, type 2 and premature all-cause mortality. Analyzing body composition: dual energy x-ray absorptiometry (dexa)_, underwater weighing (hydrodensitometry, bioelectrical impedance, skinfold thickness, air displacement.