Topic Resting Energy Expenditure Objectives Define Resting Energy
Topic: Resting Energy Expenditure Objectives: - Define Resting Energy Rate (REE) - Identify at least 8 factors what affect your REE - Create flashcards to study the factors affecting REE Do Now: - In your notebook, write down three factors that you think could cause a person to burn more calories each day.
Total Daily Energy Expenditure (Energy -Out) 3 Factors to your energy-out: 1. Resting Energy Expenditure (REE) 2. Physical Activity 50 – 70% of energyout 20 – 40% of energy-out 3. Thermogenesis (Energy used to digest a meal) 10% energy-out
Resting Energy Expenditure Your resting energy expenditure (REE) represents the largest fraction of you total daily expenditure (50 – 70%). The calories burned in your REE are used to: • • Maintain your heartbeat Maintain your breathing Regulate your body temperature* Think It is the calories you would use if you just stayed in bed all day and didn’t move.
Factors that effect Resting Energy Expenditure 1. Age—Younger people have higher-thanaverage REEs. However, as children grow, their body composition (percent body fat and muscle mass) changes. A person’s REE will decrease as they age and as they lose muscle mass.
Factors that effect Resting Energy Expenditure 2. Body Composition – The higher a person’s muscle mass is compared to their fat mass, the higher their REE will be.
Factors that effect Resting Energy Expenditure 3. Growth—Children and pregnant women have higher-than-average REEs.
Factors that effect Resting Energy Expenditure 4. Height—Tall, thin people have higher-thanaverage REEs.
Factors that effect Resting Energy Expenditure 5. Fever—A fever will increase your REE.
Factors that effect Resting Energy Expenditure 6. Stress—Physical stress, such as recovering from an illness, increases your REE; mental or emotional stress may lead to lethargy or depression and decrease your REE.
Factors that effect Resting Energy Expenditure 7. Inside/Outside Temperature—Both heat and cold raise your REE.
Factors that effect Resting Energy Expenditure 8. Fasting (Not eating for a period of time)— Fasting lowers your BMR
Calculate your Resting Energy Expenditure • Using your handout (table 3. 4), calculate your REE • You will need to change your weight from pounds to kilograms: • lbs/2. 2 = kg
REE Flashcards 1. Read the article about factors that affect REE. Underline/highlight ALL factors you read about. Add any factor to your list that we have not addressed in class. 2. Create at least 8 flashcards to help you study these factors and how the affect REE. Front: How does __(read factor on flash card)_____ affect your Resting Energy Expenditure? Back: Write how the factor on the front of the card effects your REE.
Homework Next Class: 1. Physical Activity Logs are due 2. Quiz on Resting Energy Expenditure - Read article “Factors that Affect REE” - Define REE - Factors that affect REE
- Slides: 15