A new handheld device for measuring resting metabolic rate and oxygen consumption

2003 ◽  
Vol 103 (5) ◽  
pp. 588-593 ◽  
Author(s):  
David C Nieman ◽  
Gregory A Trone ◽  
Melanie D Austin
Keyword(s):  
Oxygen Consumption ◽  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Handheld Device

Validation of a New Handheld Device for Measuring Resting Metabolic Rate and Oxygen Consumption in Children

2005 ◽  
Vol 15 (2) ◽  
pp. 186-194 ◽  
Author(s):  
David C. Nieman ◽  
Melanie D. Austin ◽  
Shannon M. Chilcote ◽  
Laura Benezra
Keyword(s):  
Oxygen Consumption ◽  
Standard Deviation ◽  
Metabolic Rate ◽  
Standard Error ◽  
Resting Metabolic Rate ◽  
Test Session ◽  
Absolute Difference ◽  
Validity And Reliability ◽  
Handheld Device ◽  
Douglas Bag

The purpose of this study was to assess the validity and reliability of the MedGem™ device to measure resting metabolic rate (RMR) in children. Subjects included 59 children (29 boys, 30 girls; mean age, 11.0 ± 0.2 y). Subjects were given 4 RMR tests during 1 test session, cconsisting of 2 Douglas bag and 2 MedGem tests, in random counterbalanced order. No significant differences were found between Douglas bag and MedGem systems for oxygen consumption (209 ± 5 and 213 ± 5 mL/min, respectively, P = 0.106, r = 0.911, mean ± standard deviation absolute difference 3.72 ± 17.40 mL/min) or RMR (1460 ± 39 and 1477 ± 35 kcal/d, P = 0.286, r = 0.909, mean ± standard deviation absolute difference 17.4 ± 124 kcal/d). Standard error of estimates for oxygen consumption and RMR were 17.4 mL/min and 124 kcal/d, respectively. In conclusion, these data indicate that the MedGem is a reliable and valid system for measuring oxygen consumption and RMR in children.

Oxygen consumption and resting metabolic rate in sepsis, sepsis syndrome, and septic shock

1993 ◽  
Vol 21 (7) ◽  
pp. 1012-1019 ◽  
Author(s):  
GEORG KREYMANN ◽  
SEBASTIAN GROSSER ◽  
PETER BUGGISCH ◽  
CLAUS GOTTSCHALL ◽  
STEPHAN MATTHAEI ◽  
...  
Keyword(s):  
Septic Shock ◽  
Oxygen Consumption ◽  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Sepsis Syndrome

Percent relative cumulative frequency analysis in indirect calorimetry: application to studies of transgenic mice

2004 ◽  
Vol 82 (12) ◽  
pp. 1075-1083 ◽  
Author(s):  
Marc Riachi ◽  
Jean Himms-Hagen ◽  
Mary-Ellen Harper
Keyword(s):  
Oxygen Consumption ◽  
Energy Expenditure ◽  
Metabolic Rate ◽  
Indirect Calorimetry ◽  
Uncoupling Protein ◽  
Resting Metabolic Rate ◽  
Large Data ◽  
Cumulative Frequency ◽  
And Control ◽  
Deficient Mice

Indirect calorimetry is commonly used in research and clinical settings to assess characteristics of energy expenditure. Respiration chambers in indirect calorimetry allow measurements over long periods of time (e.g., hours to days) and thus the collection of large sets of data. Current methods of data analysis usually involve the extraction of only a selected small proportion of data, most commonly the data that reflects resting metabolic rate. Here, we describe a simple quantitative approach for the analysis of large data sets that is capable of detecting small differences in energy metabolism. We refer to it as the percent relative cumulative frequency (PRCF) approach and have applied it to the study of uncoupling protein-1 (UCP1) deficient and control mice. The approach involves sorting data in ascending order, calculating their cumulative frequency, and expressing the frequencies in the form of percentile curves. Results demonstrate the sensitivity of the PRCF approach for analyses of oxygen consumption ([Formula: see text]02) as well as respiratory exchange ratio data. Statistical comparisons of PRCF curves are based on the 50th percentile values and curve slopes (H values). The application of the PRCF approach revealed that energy expenditure in UCP1-deficient mice housed and studied at room temperature (24 °C) is on average 10% lower (p < 0.0001) than in littermate controls. The gradual acclimation of mice to 12 °C caused a near-doubling of [Formula: see text] in both UCP1-deficient and control mice. At this lower environmental temperature, there were no differences in [Formula: see text] between groups. The latter is likely due to augmented shivering thermogenesis in UCP1-deficient mice compared with controls. With the increased availability of murine models of metabolic disease, indirect calorimetry is increasingly used, and the PRCF approach provides a novel and powerful means for data analysis.Key words: thermogenesis, oxygen consumption, metabolic rate, uncoupling protein, UCP.

scholarly journals The effect of alcohol on resting metabolic rate

1978 ◽  
Vol 40 (2) ◽  
pp. 293-298 ◽  
Author(s):  
Kathryn Rosenberg ◽  
J. V. G. A. Durnin
Keyword(s):  
Oxygen Consumption ◽  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Average Increase ◽  
Postprandial Period ◽  
Significant Difference

1. There was a significant increase in oxygen consumption in ten women after small intakes of alcohol.2. No significant difference was found between the average increase in metabolic rate over 3 h after an isoenergetic meal of food or of food plus alcohol. However, during the last half of the 3 h postprandial period, the increased O2 consumption was significantly greater after the meal including alcohol.3. Possible explanations for the contradictory results in the literature are discussed.

Validation of Cosmed’s FitMate™ in Measuring Oxygen Consumption and Estimating Resting Metabolic Rate

2006 ◽  
Vol 14 (2) ◽  
pp. 89-96 ◽  
Author(s):  
David C. Nieman ◽  
Melanie D. Austin ◽  
Laura Benezra ◽  
Steven Pearce ◽  
Tim McInnis ◽  
...  
Keyword(s):  
Oxygen Consumption ◽  
Metabolic Rate ◽  
Resting Metabolic Rate

Effect of Acute Resistance Exercise on Postexercise Oxygen Consumption and Resting Metabolic Rate in Young Women

2000 ◽  
Vol 10 (1) ◽  
pp. 71-81 ◽  
Author(s):  
Kristin L. Osterberg ◽  
Christopher L. Melby
Keyword(s):  
Oxygen Consumption ◽  
Metabolic Rate ◽  
Resistance Exercise ◽  
Young Women ◽  
Resting Metabolic Rate ◽  
Recovery Period ◽  
Fat Oxidation ◽  
Resistive Exercise ◽  
Fasted State ◽  
Postexercise Recovery

This study determined the effect of an intense bout of resistive exercise on postexercise oxygen consumption, resting metabolic rate, and resting fat oxidation in young women (N = 7, ages 22-35). On the morning of Day 1, resting metabolic rate (RMR) was measured by indirect calorimetry. At 13:00 hr, preexercise resting oxygen consumption was measured followed by 100 min of resistive exercise. Postexercise oxygen consumption was then measured for a 3-hr recovery period. On the following morning (Day 2), RMR was once again measured in a fasted state at 07:00. Postexercise oxygen consumption remained elevated during the entire 3-hr postexercise recovery period compared to the pre-exercise baseline. Resting metabolic rate was increased by 4.2% (p < .05) from Day 1 (morning prior to exercise: 1,419 ± 58 kcal/24 hr) compared to Day 2 (16 hr following exercise: 1,479 ± 65 kcal/24 hr). Resting fat oxidation as determined by the respiratory exchange ratio was also significantly elevated on Day 2 compared to Day 1. These results indicate that among young women, acute strenuous resistance exercise of the nature used in this study is capable of producing modest but prolonged elevations of postexercise metabolic rate and possibly fat oxidation.

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