11.2 Overview of Energy Balance Flashcards
Energy balance is the relationship between the energy _____ and _____
intake, outake
What is the main way in which we take in energy?
Our diet (carbs, fats, proteins, alcohols)
In what ways to we expend energy?
Physical activity
Metabolism
Thermic effect of food (heat production and nutrient processing)
Metabolism contributes what percentage of the energy we burn every day?
60-75%
Physical activity contributes what percentage of the energy we burn every day?
10-25%
Thermic effect of food contributes what percentage of the energy we burn every day?
10%
Where are excess kcal stored as in your body?
Fat, as all energy yielding nutrients can get turned into it
What happens to our fat cells as we keep intaking excess energy?
They get bigger and their numbers increase as well
What happens to our fat cells as we maintain a caloric deficit?
Fat cells shrink, but the numbers only reduce a little
What is Basal Metabolic Rate?
The amount of energy the body needs to perform its most basic, life-sustaining functions over a period of time
What can affect Basal Metabolic Rate?
Lean body mass, gender, age, height, genetics
When do we gain weight?
Increases in fat mass, lean mass (muscles), water mass, and glycogen storage