An appraisal of whole-room indirect calorimeters and a metabolic cart for measuring resting and active metabolic rates
| Autor: | Francesco S Celi, Shanshan Chen, Ronald K. Evans, Jared S. Farrar, Cory Scott, Janina V. Pearce |
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| Rok vydání: | 2020 |
| Předmět: |
Male
0301 basic medicine Cart Variance component analysis lcsh:Medicine Article 03 medical and health sciences 0302 clinical medicine Statistics Humans Medicine Obesity lcsh:Science Exercise Reproducibility Multidisciplinary business.industry lcsh:R Reproducibility of Results Calorimetry Indirect Metabolism 030104 developmental biology Basal metabolic rate Metabolic rate lcsh:Q Female Basal Metabolism Energy Metabolism Metabolic carts business 030217 neurology & neurosurgery |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020) |
| ISSN: | 2045-2322 |
| Popis: | Whole-room indirect calorimeters (WRICs) have traditionally been used for real-time resting metabolic rate (RMR) measurements, while metabolic rate (MR) during short-interval exercises has commonly been measured by metabolic carts (MCs). This study aims to investigate the feasibility of incorporating short-interval exercises into WRIC study protocols by comparing the performance of WRICs and an MC. We assessed the 40-min RMR of 15 subjects with 2-day repeats and the 10–15 min activity MR (AMR) of 14 subjects at three intensities, using a large WRIC, a small WRIC, and an MC. We evaluated the biases between the instruments and quantified sources of variation using variance component analysis. All three instruments showed good agreement for both RMR (maximum bias = 0.07 kcal/min) and AMR assessment (maximum bias = 0.53 kcal/min). Moreover, the majority of the variability was between-subject and between-intensity variation, whereas the types of instrument contributed only a small amount to total variation in RMR (2%) and AMR (0.2%) data. In Conclusion, the good reproducibility among the instruments indicates that they may be used interchangeably in well-designed studies. Overall, WRICs can serve as an accurate and versatile means of assessing MR, capable of integrating RMR and short-interval AMR assessments into a single protocol. |
| Databáze: | OpenAIRE |
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