Congruent validity and inter-day reliability of two breath by breath metabolic carts to measure resting metabolic rate in young adults

被引:25
作者
Alcantara, J. M. A. [1 ]
Sanchez-Delgado, G. [1 ]
Martinez-Tellez, B. [1 ,2 ,3 ]
Merchan-Ramirez, E. [1 ]
Labayen, I [4 ]
Ruiz, J. R. [1 ]
机构
[1] Univ Granada, Fac Sport Sci, Dept Phys Educ & Sport, PROFITH PROmoting FITness & Hlth Phys Act Res Grp, Ctra Alfacar S-N, E-18071 Granada, Spain
[2] Leiden Univ, Med Ctr, Div Endocrinol, Dept Med, Albinusdreef 2, NL-2333 Leiden, Netherlands
[3] Leiden Univ, Med Ctr, Einthoven Lab Expt Vasc Med, Albinusdreef 2, NL-2333 Leiden, Netherlands
[4] Univ Publ Navarra, Dept Hlth Sci, Avda Baranain S-N, Pamplona 31008, Spain
关键词
Resting energy expenditure; RMR; Indirect calorimetry; Oxygen consumption; CCM express; Ultima CardiO2; INDIRECT CALORIMETRY; ENERGY-EXPENDITURE; STANDARD; INSTRUMENTS; VARIABILITY; HEALTHY; SYSTEMS; WOMEN;
D O I
10.1016/j.numecd.2018.03.010
中图分类号
R5 [内科学];
学科分类号
100201 [内科学];
摘要
Background & aims: Achieving high inter-day reliability is a key factor to analyze the magnitude of change in RMR, for instance after an intervention. The aims of this study were: i) to determine the congruent validity of RMR and respiratory quotient (RQ) with two breath by breath commercially available metabolic carts [CCM Express (CCM) and Ultima CardiO2 (MGU)]; and ii) to analyze the inter-day reliability of RMR and RQ measurements. Methods & results: Seventeen young adults participated in the study. RMR measurements were performed during two consecutive 30-min periods, on two consecutive days with both metabolic carts. The 5-min period that met the steady state criteria [Coefficient of variance (CV) < 10% for VO2, VCO2, and VE, and CV<5% for RQ] and with the lowest CV average was included in further analysis. RMR values were higher with the MGU than with the CCM on both days (two-way ANOVA, P = 0.021), however, no differences were found on RQ values obtained by both metabolic carts (P = 0.642). Absolute inter-day RMR differences obtained with the MGU were higher than those obtained with the CCM (219 +/- 185 vs. 158 +/- 154 kcal/day, respectively, P = 0.002; 18.3 +/- 17.2% vs. 13.5 +/- 15.3%, respectively, P = 0.046). We observed a significant positive association of absolute inter-day differences in RMR obtained with both metabolic carts (beta = 0.717; R-2 = 0.743; P < 0.001). Conclusions: The CCM metabolic cart provides lower RMR values and seems more reliable than the MGU in our sample of young adults. Our findings also suggest that a great part of inter-day variability is explained by the individuals. (C) 2018 The Italian Society of Diabetology, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition, and the Department of Clinical Medicine and Surgery, Federico II University. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:929 / 936
页数:8
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