Week 2 - Energy Balence Flashcards
What is indirect calorimetry?
Estimates energy expenditure based on gas exchange measurements at the mouth.
What is direct Calorimetry ?
Measures the heat output by the body, in a chamber, i.e. a measure of the total energy expended.
P.A.R
Physical Activity Ratio
What does postprandial mean?
After eating
a Kilojoule (kJ) is the energy used …
when 1kg is moved by 1m by a force of Newton
a kilocalorie (kcal) expresses
the quantity of heat needed to raise the temperature of 1kg (1L) of water by 1ºC
Gross means
total energy at the start
state the calories for protein
4kcal
state the calories for fat
9kcal
state the calories for carbs
3.75kcal
state the calories for alcohol
7kcal
B.M.R
Basal Metabolic Rate
T.E.R
total energy
requirement
T.E.F
Thermic effect of food
example of direct calorimetry
sealed room
example of indirect calorimetry
Douglas bag method
respiratory exchange ratio
co2 produced over 02 produced
R.Q
Respiratory quotient
