Nutrition through life cycle

Question 1

BMR

Answer 1

Basal metabolic rate amount of energy body needs to sustain vital functions during rest

Question 2

BMR measured via:

Answer 2

• indirect calorimetry with-in 30min of waking up
• after 12-14hr overnight fast with no physical activity and laying flat on back
• Basal energy expenditure BEE kcal/24hr

Question 3

RMR

Answer 3

Resting metabolic rate in energy body burns at rest. RMR 10-20% higher than BMR because indicates energy expenditures beyond vital organs

Question 4

RMR measured via:

Answer 4

• indirect calorimetry after 3-4hr fast
• sitting comfortably/reading
• REE kcal/24hr (resting energy expenditure)

Question 5

NEAT
Thermic effect of feeding (TEF)
Exercise-related energy expenditure

Answer 5

• NEAT: any type of movement that isn’t related to sleeping, digesting, performing sports
• Energy spent once food eaten and digestion begins

Question 6

Sedentary:

Answer 6

only preforming typical daily living activities

Question 7

Low activity:

Answer 7

typical daily living activities + 30-60min daily moderate activity (walking)

Question 8

Active:

Answer 8

typical daily activities + >/=60 min daily moderate activity

Question 9

Very active:

Answer 9

typical daily activities + 60min of moderate activity and 60min of vigorous activity OR 120min of moderate

Question 10

Physical Activity level ranges
(PAL)

Answer 10

Sedentary: 1-1.39
Low Active: 1.4-1.59
Active: 1.6-1.89
Very Active: 1.9-2.5

Question 11

PA coefficient ranges ages 3-18 yrs

Answer 11

Sedentary: B= 1 G=1
Low Active: B=1.13 G=1.16
Active: B= 1.26 G=1.31
Very Active: B=1.42 G=1.56

Question 12

PAL vs PA

Answer 12

PAL: physical activity level
PA: age and gender specific

Question 13

PA coefficient ranges ages >/=19

Answer 13

Sedentary: M=1 F=1
Low Active: M=1.11 F=1.12
Active: M=1.25 F=1.27
Very Active: M=1.48 F=1.45

Question 14

What is the major driver of both BMR and RMR?

Answer 14

fat-free mass (note BMR and RMR make up largest component of total energy expenditure)

Question 15

Estimated Energy needs should be based on?

Answer 15

Resting metabolic rate (RMR)