Combined effect of body position, apparatus and distraction on children's resting metabolic rate

Amorim, Paulo, Byrne, Nuala M., & Hills, Andrew P. (2007) Combined effect of body position, apparatus and distraction on children's resting metabolic rate. International Journal of Pediatric Obesity, 2(4), pp. 249-256.

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Objective: To verify the combined effect of body position, apparatus and distraction on children’s resting metabolic rate (RMR). Methods. Experiments were carried out on 14 children aged 812 (mean age10.1 years 91.4). Each participant underwent two test sessions, one week apart under three different situations: a) using mouthpiece and nose-clip (MN) or facemask (FM); b) sitting (SEAT) or lying (LY); and c) TV viewing (TV) or no TV viewing. In the first session, following 20 min rest and watching TV, the protocol was: LY: 20 min stabilization; 10 min using MN and 10 min using FM. Body position was then changed to seated: 20 min stabilization; 10 min using FM; 10 min using MN. In the second session, FM and MN order was changed and participants did not watch TV. Data were analysed according to the eight combinations among the three studied parameters. Results. Repeated measures ANOVA indicated statistically significant differences for /V˙O2 (p0.01) and RMR (p0.02), with TVMNSEAT showing higher values than TVFMLY. Bland-Altman analysis showed a bias for V˙O2, V˙CO2, respiratory quotient (RQ) and RMR between TVFMLY and TVMNSEAT, respectively, of 17.8914.5 (ml min), 8.8914.5 (ml min), 0.0390.05 and 115.29101.9 (kcal/day). Conclusion. There were no differences in RMR measurements due to body position and apparatus when each variable was isolated. Analyses of distraction in three of four combinations indicated no difference between TVand no TV. Different parameter combinations can result in increased bias and variability, and thereby the reported differences among children's RMR measurement.

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ID Code: 12735
Item Type: Journal Article
Refereed: Yes
Additional Information: For more information, please refer to the journal's website (see hypertext link) or contact the author.
Keywords: Child, energy metabolism, indirect calorimetry, instrumentation, methodology
DOI: 10.1080/17477160701453466
ISSN: 1747-7166
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > HUMAN MOVEMENT AND SPORTS SCIENCE (110600)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Exercise & Nutrition Sciences
Copyright Owner: Copyright 2007 Taylor & Francis
Deposited On: 02 Sep 2008 00:00
Last Modified: 29 Feb 2012 13:37

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