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Comparing the standards of one metabolic equivalent of task in accurately estimating physical activity energy expenditure based on acceleration

Authors
Kim, D | Lee, J | Park, HK | Jang, DP | Song, S | Cho, BH | Jung, YS | Park, RW  | Joo, NS  | Kim, IY
Citation
Journal of sports sciences, 35(13). : 1279-1286, 2017
Journal Title
Journal of sports sciences
ISSN
0264-04141466-447X
Abstract
The purpose of the study is to analyse how the standard of resting metabolic rate (RMR) affects estimation of the metabolic equivalent of task (MET) using an accelerometer. In order to investigate the effect on estimation according to intensity of activity, comparisons were conducted between the 3.5 ml O2 . kg(-1) . min(-1) and individually measured resting VO2 as the standard of 1 MET. MET was estimated by linear regression equations that were derived through five-fold cross-validation using 2 types of MET values and accelerations: the accuracy of estimation was analysed through cross-validation, Bland and Altman plot, and one-way ANOVA test. There were no significant differences in the RMS error after cross-validation. However, the individual RMR-based estimations had as many as 0.5 METs of mean difference in modified Bland and Altman plots than RMR of 3.5 ml O2 . kg(-1) . min(-1). Finally, the results of an ANOVA test indicated that the individual RMR-based estimations had less significant differences between the reference and estimated values at each intensity of activity. In conclusion, the RMR standard is a factor that affects accurate estimation of METs by acceleration: therefore, RMR requires individual specification when it is used for estimation of METs using an accelerometer.
MeSH

DOI
10.1080/02640414.2016.1221520
PMID
27556835
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Biomedical Informatics
Journal Papers > School of Medicine / Graduate School of Medicine > Family Practice & Community Health
Ajou Authors
박, 래웅  |  주, 남석
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