Doubly-labeled water | definition of Doubly-labeled water by Medical dictionary
doubly labeled water (redirected from Doubly-labeled water)
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doub·ly la·bel·ed wa·ter (dŭb'lē lā'bĕld waw'tĕr)
Noncalorimetric technique for measuring energy expenditure in free-living subjects using an oral dose of water containingstable nonradioactive isotopes, 2H and 18O. Derived CO2 production is used to calculate energy expenditure using indirect calorimetry formulas.
References in periodicals archive
This study is among the first to use the doubly-labeled water
method (the industry gold standard) to evaluate the validity of body monitoring devices in children.
7) Doubly-labeled water
is considered the gold standard in the measurement of energy expenditure and is commonly used to validate other methods.
The doubly-labeled water
method is particularly useful for measuring average metabolic rate over relatively long periods of time (i.