Validation of an inexpensive and accurate mathematical method to measure long-term changes in free-living energy intake.

ABSTRACT:

Background

Accurate measurement of free-living energy intake (EI) over long periods is imperative for understanding obesity and its treatment. Unfortunately, traditional methods rely on self-report and are notoriously inaccurate. Although EI can be indirectly estimated by the intake-balance method, this technique is prohibitively labor-intensive and expensive, requiring repeated measures of energy expenditure via doubly labeled water (DLW) along with multiple dual-energy X-ray absorptiometry (DXA) scans to measure changes in body energy stores.

Objective

Our objective was to validate a mathematical method to measure long-term changes in free-living energy intake.

Design

We measured body weight and EI changes (ΔEI) over 4 time intervals by using the intake-balance meth

SUBMITTER: Sanghvi A 

PROVIDER: S-EPMC4515869 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature