A computational model to determine energy intake during weight loss.

ABSTRACT:

Background

Energy intake (EI) during weight loss is difficult and costly to measure accurately.

Objective

The objective was to develop and validate a computational energy balance differential equation model to determine individual EI during weight loss.

Design

An algorithm was developed to quantify EI during weight loss based on a validated one-dimensional model for weight change. By using data from a 24-wk calorie-restriction study, we tested the validity of the EI model against 2 criterion measures: 1) EI quantified through food provision from weeks 0-4 and 4-12 and 2) EI quantified through changes in body energy stores [measured with dual-energy X-ray absorptiometry (DXA)] and energy expenditure [measured with doubly labeled water (DLW)] from weeks 4-12 and 12-24.<

SUBMITTER: Thomas DM 

PROVIDER: S-EPMC2980958 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature