chap 6 - energy

Question 1

what does your energy expenditure consist of?

Answer 1

Pyshical activity, Basal Metabolism, and Thermogenesis

Question 2

TEE (total Energy Expenditrue)

Answer 2

TEE = Basal needs (60%) + Activity (30%) + Thermogenesis (10%)

Question 3

BEE (Basal energy Expenditure)

Answer 3

Total amount of energy you use to sustain basic life processes

breathing, blood circulation, organs, brain

Question 4

BMR (Basal Metabolic Rate)

Answer 4

The rate of your BEE at rest

you measure o2 and co2 after waking up
-age and gender play a role

Question 5

Methods to measure BMR

Answer 5

1. ventilated hood
2. Human Calorimeter
   -direct (body heat)
   -indirect (co2 & o2 release)

Question 6

RMR/REE (resting metabolic rate)

Answer 6

always slightly higher than BMR by around 10-20%

this is because RMR is measure during light activities

Question 6

BMR for men and women?

Answer 6

1 kcal/kg/hr —–> men
0.9 kcal/kg/hr —-> women

Question 7

what is Lean Body mass

Answer 7

everything besides FAT

anything that is burning calories

Question 8

What happens to BMR and Lean body mass when you get fatter?

Answer 8

increases Lean Body mass AND BMR

• need more muscle to support wheight
• hypertrophy of heart and organs
• more vasularization

Question 9

what creates the highest - lowest metabolic response to injury aznd illness?

Answer 9

1. burn
2. infection
3. bone broken
   —normal
   -1. partial starvation
   -2. total starvation

Question 10

What is Thermogenesis?

Answer 10

contributes to TEE equation

Types:
1. stress
2. drugs (caffine, nic, alchohol)
3. cold
4. Dietary Induced thermogenesis

Question 11

does caffine give you kcal energy?

Answer 11

no

Question 12

why does metabolic rate increase with food intake?

Answer 12

1. digestion process
2. absorbtion
3. More biosynthesis

all of this takes energy after youve eaten

Question 13

BMI calculation

Answer 13

BMI = weight (kg) / height ^2 (m)

Question 14

Limitaitons of BMI

Answer 14

1. no pregnant/lactating
2. no kids
3. (muscular athletes)
4. (grow past 18)
5. (fat + fit)
6. (ethnic groups)
7. (older)
8. no fat distribution

Question 15

waist cut-off points for mena and women

Answer 15

men = about 40inch
women = about 35inch

Question 16

Apple shape vs. Pear shape

Answer 16

pear shape better because more active fatty tissue