NDFS 200 Final Exam- Energy Balance

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/6

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

7 Terms

1
New cards

What is energy balance and its uses in the body?

  • equilibrium: intake = expenditure

  • positive energy balance = intake > expenditure

  • negative energy balance = intake < expenditure

2
New cards

What are ways to measure energy expenditure?

  • harris benedict equation

    • will be given on test

    • different EQs for men and women

    • WT in kg (2.2 lbs = 1 kg)

    • HT in cm

  • energy for physical activity

  • thermic effect of food

  • adaptive thermogenesis

  • direct calorimetry: measure heat produced by person in room

    • accurate but expensive

  • indirect calorimetry: collect expelled air from individual

    • more common

  • respiratory quotient

    • close to 1.0 means all carbs

    • close to 0.7 means all fat

  • estimated energy expenditure

    • will be given on test

    • weight in kg

    • height in m

    • should be larger than harris benedict EQ

3
New cards

What are hunger, appetite, and satiety?

  • hunger

    • physiological need for food

  • appetite

    • pyschological desire for food

    • social, mood, time of day

  • satiety

    • fulfilling hunger and appetite

    • leptin increases satiety

      • produced by adipose tissue

    • regulates metabolism

4
New cards

How is body composition assessed?

  • BMI

    • body weight (kg) / height (m) ²

    • health risks associated with BMI > 25

  • body fat content

    • underwater weighing

    • bodypod

    • bodyweight/volume

    • skinfold thickness

    • bioelectric impedance

    • DEXA scan

5
New cards

What are the impacts of genetics and environment on body weight and composition?

  • genetics account for 40-70% of weight variation

    • metabolic efficiency

      • less efficient = “fast metabolism”

  • environment

    • learned behaviors

6
New cards

What are the key components of weight loss programs?

  • control energy intake

  • perform regular physical activity

  • control problem behavior

7
New cards

How can we measure energy intake?

  • bomb calorimeter

    • burn food and measure energy released (could measure things like fiber than cannot be digested)

  • calculate with formula

    • carbs = 4

    • protein = 4

    • fat = 9