Chapter 9 Flashcards
What are the values for total daily energy expenditure for males and females?
Males - 2900 Kcal
Females - 2200 Kcal
What is the major factor that affects a person’s energy expenditure?
Physical activity level
Who expends more energy: lighter or heavier person?
Heavier
Can heart rate predict oxygen consumption and caloric expenditure for most physical activities?
LIMITED capability to predict.
Wha is basal metabolic rate?
“Energy requirement for each individual to do minimum level of energy to sustain vital functions in the waking state.”
In a controlled setting, in a lab, laying down for one hour, supine, take oxygen consumption value after the hour. Thats the basal value.
______ is always slightly lower than _______. (BMR/RMR)
BMR is always slightly lower than RMR.
Who has a lower RMR: Men or women?
Women
Why do women have a lower RMR?
Women possess more body fat (and less fat-free tissue) than men. *Fat tissue has lower metabolic activity than muscle.
Equation for BMR
BMR = (measured BMR - standard BMR) X 100 divided by standard BMR.
What is always the standard value for BMR?
39.2
Do the brain and skeletal muscle consume the same quantity of oxygen?
Yes, surprisingly! Even though brain is smaller.
What are the 5 things that affect energy expenditure / a person’s metabolic rate?
PA, diet induced themogenesis, climate, pregnancy and body size.
Overweight individuals vs. thermic response
They have a blunted thermic response to eating that contributes to excess body fat accumulation.
The diet-induced thermogenesis is greatest for which 2: carbs, proteins and/or fats?
DIT is greatest for carb and protein
Should you exercise after eating to augment DIG?
yes to increase caloric expenditure for weight control
