Energy Expenditure Flashcards
calorimetry does what?
DIRECT MEASURE OF HEAT
measures gases in a closed environment
3rd technique used to determine how much energy is being used and from where
respiratory quotient (RQ)
the amount of energy that your body uses to fuel cellular activity at rest
BMR or RMR
when is RMR measured?
in less than ideal settings or strict environments
What is the relationship between RMR and fat free body mass?
the more muscle you have, the more calories you burn
The older we get, what happens to calories at rest?
calories at rest burn less
measure of the external surface area of the body measured in m2
body surface area
the larger the surface area, the more _____ you need toexpend to maintain body temp
energy
what happens with BMR and age?
BMR decreases as we get older
*can be changed with exercise
How do we measure how much energy is needed/consumed with activities?
gross energy expenditure
% of total energy expendedthat contributes to work
mechanical efficiency
higher levels of fitness translates into?
lower EE
increased BMI =?
lower efficiency and higher EE
How is EE related to mass?
the heavier you are, the more energy you expend with activity
What is the most energy expensive walking terrain?
the beach/sand
