THERMOGENIC RESPONSE TO FOOD - INTRAINDIVIDUAL VARIABILITY AND MEASUREMENT RELIABILITY

Citation
M. Houdenadeau et al., THERMOGENIC RESPONSE TO FOOD - INTRAINDIVIDUAL VARIABILITY AND MEASUREMENT RELIABILITY, Journal of the American College of Nutrition, 12(5), 1993, pp. 511-516
Citations number
26
Categorie Soggetti
Nutrition & Dietetics
ISSN journal
07315724
Volume
12
Issue
5
Year of publication
1993
Pages
511 - 516
Database
ISI
SICI code
0731-5724(1993)12:5<511:TRTF-I>2.0.ZU;2-0
Abstract
The objective of this study was to assess the reliability and variabil ity of the thermogenic response to food (TRF) in healthy adult subject s. Eight healthy adults (4 men, 4 women) participated in three sets of measurements of TRF, evaluated by indirect calorimetry with a ventila ted hood system during 6 hours after a standardized meal. The reliabil ity of TRF measurement was estimated using a one-way analysis of varia nce with repeated measurements. After the 6-hour period of measurement , the within-subject coefficient of variation for TRF was 10.7%, while the between-subject variability was twice as high (24.1%, p < 0.01). The overall reliability estimate of TRF was acceptable (RE greater-tha n-or-equal-to 0.80) after a single measurement which lasted at least 6 hours postprandially, while duplicate and triplicate measurements rea ched a similar degree of reliability in 3 hours. These results suggest that intra-individual variability contributes little to the variabili ty commonly seen in TRF studies, provided that the measurement period is at least 6 hours.