energy balance

Question 1

positive energy balance

Answer 1

weight gain

Question 2

negative energy balance

Answer 2

weight loss

Question 3

what does indirect calorimetry measure

Answer 3

O2 intake and CO2 output

Question 4

components of TEE

Answer 4

basal metabolic rate, thermic effect of food (TEF), Physical activity (PA)

Question 5

most variable and readily influenced component of TEE

Answer 5

physical activity

Question 6

ghrelin

Answer 6

secreted by stomach cells
increases app
increase can be caused by lack of sleep, psychological mindset

Question 7

leptin

Answer 7

secreted from adipose tissue
increases when fat increases
suppress app

Question 8

BMI limitations

Answer 8

weight-to-height standard
convenient
both men and women
cant diff btwn fat free mass and mass

Question 9

ectopic fat

Answer 9

located outside of adipose cells
fat stored in tissues

Question 10

visceral fat

Answer 10

central obesity
associated with health risks

Question 11

subcutaneous fat

Answer 11

fat underneath skin

Question 12

gastric band

Answer 12

band and saline solution to make band tighter
reduce intake and stomach capacity

Question 13

gastric sleeve

Answer 13

remove portion of the stomach

Question 14

gastric bypass

Answer 14

stomach -> jejunum
restrictive and maabsorptive

Question 15

risks of ectopic fat

Answer 15

metabolic dysfunction
cardiovascular disease
chronic inflammation

Question 16

air displacement

Answer 16

bodpod
the space a person takes up in a chamber is measured

Question 17

underwater weighing

Answer 17

body weight is measured under water and in air
determine densities of fat and lean tissue

Question 18

skinfold measurements

Answer 18

calipers used to measure subcutaneous fat at various body sites

Question 19

bioelectrical impedance

Answer 19

painless, low-energy electrical current sent through body
based on the principle that body fat resists the flow of elec bc it is low in nwater and electrolytes

Question 20

dxa

Answer 20

most accurate, uses low dose radiation, estimates body fat, fat free soft tissue, bone minerals