Influence of a Gas Exchange Correction Procedure on Resting Metabolic Rate and Respiratory Quotient in Humans

Obesity ◽  
2017 ◽  
Vol 25 (11) ◽  
pp. 1941-1947 ◽  
Author(s):  
Jose E. Galgani ◽  
Mauricio A. Castro-Sepulveda
Keyword(s):  
Gas Exchange ◽  
Metabolic Rate ◽  
Respiratory Quotient ◽  
Resting Metabolic Rate ◽  
Correction Procedure ◽  
Exchange Correction

scholarly journals Resting Metabolic Rate and Respiratory Quotient in Human Longevity

2005 ◽  
Vol 90 (1) ◽  
pp. 409-413 ◽  
Author(s):  
M. R. Rizzo ◽  
D. Mari ◽  
M. Barbieri ◽  
E. Ragno ◽  
R. Grella ◽  
...  
Keyword(s):  
Metabolic Rate ◽  
Respiratory Quotient ◽  
Resting Metabolic Rate ◽  
Human Longevity

scholarly journals Influence of Vitamin A Consumption on Resting Metabolic Rate and Fasting Respiratory Quotient in Severely Obese Subjects

2003 ◽  
Vol 12 (3) ◽  
pp. 189-192 ◽  
Author(s):  
Radka Mikulová-Braunerová ◽  
Vojtěch Hainer ◽  
Marie Kunešová ◽  
Jana Paĕízková ◽  
Šárka Slabá ◽  
...  
Keyword(s):  
Vitamin A ◽  
Metabolic Rate ◽  
Respiratory Quotient ◽  
Resting Metabolic Rate ◽  
Severely Obese ◽  
Obese Subjects

scholarly journals Impact of the Method Used to Select Gas Exchange Data for Estimating the Resting Metabolic Rate, as Supplied by Breath-by-Breath Metabolic Carts

Nutrients ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 487
Author(s):  
Juan M.A. Alcantara ◽  
Guillermo Sanchez-Delgado ◽  
Francisco J. Amaro-Gahete ◽  
Jose E. Galgani ◽  
Jonatan R. Ruiz
Keyword(s):  
Gas Exchange ◽  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Time Interval ◽  
Metabolic Cart ◽  
Coefficients Of Variation ◽  
Human Energy ◽  
The Mean ◽  
Middle Aged Adults ◽  
Exchange Data

The method used to select representative gas exchange data from large datasets influences the resting metabolic rate (RMR) returned. This study determines which of three methods yields the lowest RMR (as recommended for use in human energy balance studies), and in which method the greatest variance in RMR is explained by classical determinants of this variable. A total of 107 young and 74 middle-aged adults underwent a 30 min RMR examination using a breath-by-breath metabolic cart. Three gas exchange data selection methods were used: (i) steady state (SSt) for 3, 4, 5, or 10 min, (ii) a pre-defined time interval (TI), i.e., 6–10, 11–15, 16–20, 21–25, 26–30, 6–25, or 6–30 min, and (iii) “filtering”, setting thresholds depending on the mean RMR value obtained. In both cohorts, the RMRs yielded by the SSt and filtering methods were significantly lower (p < 0.021) than those yielded by the TI method. No differences in RMR were seen under the different conditions of the SSt method, or of the filtering method. No differences were seen between the methods in terms of the variance in RMR explained by its classical determinants. In conclusion, the SSt and filtering methods return the lowest RMRs and intra-measurement coefficients of variation when using breath-by-breath metabolic carts.

scholarly journals Effect of Acute and Chronic Dietary Supplementation with Green Tea Catechins on Resting Metabolic Rate, Energy Expenditure and Respiratory Quotient: A Systematic Review

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 644
Author(s):  
Mariangela Rondanelli ◽  
Antonella Riva ◽  
Giovanna Petrangolini ◽  
Pietro Allegrini ◽  
Simone Perna ◽  
...  
Keyword(s):  
Systematic Review ◽  
Energy Expenditure ◽  
Metabolic Rate ◽  
Green Tea ◽  
Respiratory Quotient ◽  
Resting Metabolic Rate ◽  
Tea Catechins ◽  
Positive Effects ◽  
Green Tea Catechins ◽  
Acute Intake

The consumption of green tea catechins (GTC) is associated with modulations of fat metabolism and consequent weight loss. The aim of this systematic review was to investigate the effect of GTC on resting metabolic rate (RMR), energy expenditure (EE), and respiratory quotient (RQ). Eligible studies considered both the chronic and acute intake of GTC-based supplements, with epigallocatechin gallate (EGCG) doses ranging between 100–800 mg. Findings from 15 studies (n = 499 participants) lasting 8–12 weeks (for chronic consumption) or 1–3 days (for acute intake) are summarized. This review reveals the positive effects of GTC supplementation on RQ values (272 subjects). Regarding the effects of acute and chronic GTC supplementation on RMR (244 subjects) and EE (255 subjects), the results did not allow for a definitive conclusion, even though they were promising, because some reported a positive improvement (two studies revealed an increase in RMR: one demonstrated an RMR increase of 43.82 kcal/day and another demonstrated an increase of 260.8 kcal/day, mainly when subjects were also engaged in resistance training exercise). Considering GTC daily dose supplementation, studies in which modifications of energetic parameters occurred, in particular RQ reduction, considered GTC low doses (100–300 mg). GTC may be useful for improving metabolic profiles. Further investigations are needed to better define adequate doses of supplementation.

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