ways to measure energy expenditure

Question 1

indirect calorimetry

Answer 1

uses a metabolic cart

headgear of cart is attached to subject while they breathe in and out for specific amount of time

their 02 and c02 continually measured

measures their REE-resting energy expenditure

calculates how much c02 is produced and how much 02 is consumed both at rest and during aerobic exercise

accurate and give calculations for v02 and v02 max

Question 2

REE definition

Answer 2

amount of energy required for a 24 hour period by the body during rest

Question 3

adv of indiract calimonty

Answer 3

helps caluate energy expenditure-allows determination of nutriual requirements

Question 4

dis of indirect calciolmetry

Answer 4

LOSE
leackages of air
overeating or undereating based of results received
single snapshots are not as good as results after long period of time
errors in taking measuements may occur

Question 5

lactate samplling

Answer 5

takes a tiny blood sample
handheld device anlyses the blood and indcates how much lacate is presnt

also measures exercise intesity, the higher the exercise intensity at which the lacatate threshold reaches, the fitter the athelte

Question 6

V02 max test

Answer 6

multi satge fitness test or bleep test

harvard steps test

coopers 12 minute run

DIRECT GAS ANALYSIS makes more reilable results

Question 7

direcat gas analysis

Answer 7

measures the conectration of oxygen that is inspired and the concentraion of c02 that is expired

run on treadmill and both are calucated and compared with atmospheres air to see how much oxygen has been used during the task

Question 8

RER (respiratory exchange ratio)

Answer 8

ratio between c02 produced and oxygen consumedd and used as measure of exercise itnensity

Question 9

how to calcuate RER

Answer 9

carbon dioxide expired per minute
divided by oxygen consumed per minute