Multiple propane gas burn rates procedure to determine accuracy and linearity of indirect calorimetry systems: an experimental assessment of a method.

ABSTRACT:

Objective

Indirect calorimetry (IC) systems measure the fractions of expired carbon dioxide (F_eCO₂), and oxygen (F_eO₂) recorded at the mouth to estimate whole-body energy production. The fundamental principle of IC relates to the catabolism of high-energy substrates such as carbohydrates and lipids to meet the body's energy needs through the oxidative process, which are reflected in the measured oxygen uptake rates (V̇O₂) and carbon dioxide production rates (V̇CO₂). Accordingly, it is important to know the accuracy and validity of V̇O₂and V̇CO₂ measurements when estimating energy production and substrate partitioning for research and clinical purposes. Although several techniques are readily ava

SUBMITTER: Ismail M 

PROVIDER: S-EPMC9435516 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature