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What is indirect calorimetry used for?
Indirect calorimetry (a type of whole body calorimetry where all gas consumption and gas exhalation are continuously monitored) can be used to determine energy expenditure through the use of equations relating total O2 consumption, CO2 expiration, and urinary nitrogen excretion to energy utilization.
What is calorimetry used for?
Calorimetry is the science or act of measuring changes in state variables of a body for the purpose of deriving the heat transfer associated with changes of its state due, for example, to chemical reactions, physical changes, or phase transitions under specified constraints. Calorimetry is performed with a calorimeter.
How do you do indirect calorimetry?
Calorimetry is the act of measuring the heat of chemical reactions or physical changes, or the science of making such measurements. Calorimetry is performed with a calorimeter. The word calorimetry is derived from the Latin word calor, meaning heat and the Greek word μέτρον, meaning measure.
What is calorimetry in nutrition?
Calorimetry. Calorimetry is a process that quantifies the heat release from metabolism of cellular fuels. It provides assessment of caloric energy present in foods and allows for measurement of energy expenditure to determine adequate calorie requirement. … Indirect calorimetry measures metabolism of foods in vivo.