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Determining the Acc...
Determining the Accuracy and Reliability of Indirect Calorimeters Utilizing the Methanol Combustion Technique
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- Kaviani, Sepideh (författare)
- Department of Foods and Nutrition University of Georgia Athens Georgia USA
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- Schoeller, Dale A. (författare)
- Department of Nutritional Sciences University of Wisconsin Madison Wisconsin USA
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- Ravussin, Eric (författare)
- Pennington Biomedical Research Center Baton Rouge Louisiana USA
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- Melanson, Edward L. (författare)
- Division of Endocrinology Metabolism & amp; Diabetes University of Colorado Anschutz Medical Campus Denver Colorado USA
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- Henes, Sarah T. (författare)
- Department of Nutrition Georgia State University Atlanta Georgia USA
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- Dugas, Lara R. (författare)
- Public Health Sciences Loyola University Chicago Illinois USA
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- Dechert, Ronald E. (författare)
- Pediatric Respiratory Care University of Michigan Health System Ann Arbor Michigan USA
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- Mitri, George (författare)
- Pediatric Respiratory Care University of Michigan Health System Ann Arbor Michigan USA
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- Schoffelen, Paul F.M. (författare)
- Department of Human Biology & Movement Sciences NUTRIM School for Nutrition Toxicology & Metabolism Maastricht University Medical Centre Maastricht the Netherlands
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- Gubbels, Pim (författare)
- Topsport Expertise & Innovation Centre Sittard the Netherlands
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- Tornberg, Asa (författare)
- Lund University,Lunds universitet,Institutionen för hälsovetenskaper,Medicinska fakulteten,Department of Health Sciences,Faculty of Medicine,Department of Health Sciences Lund University Lund Sweden
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- Garland, Stephen (författare)
- Lund University,Lunds universitet,Institutionen för hälsovetenskaper,Medicinska fakulteten,Department of Health Sciences,Faculty of Medicine,Department of Health Sciences Lund University Lund Sweden
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- Akkermans, Marco (författare)
- Center of Expertise for Chronic Organ Failure Horn the Netherlands
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- Cooper, Jamie A. (författare)
- Department of Foods and Nutrition University of Georgia Athens Georgia USA
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(creator_code:org_t)
- 2018-04-16
- 2018
- Engelska 11 s.
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Ingår i: Nutrition in Clinical Practice. - : Wiley. - 0884-5336. ; 33:2, s. 206-216
- Relaterad länk:
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http://dx.doi.org/10...
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http://deepblue.lib....
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Background: Several indirect calorimetry (IC) instruments are commercially available, but comparative validity and reliability data are lacking. Existing data are limited by inconsistencies in protocols, subject characteristics, or single-instrument validation comparisons. The aim of this study was to compare accuracy and reliability of metabolic carts using methanol combustion as the cross-laboratory criterion. Methods: Eight 20-minute methanol burn trials were completed on 12 metabolic carts. Respiratory exchange ratio (RER) and percent O2 and CO2 recovery were calculated. Results: For accuracy, 1 Omnical, Cosmed Quark CPET (Cosmed), and both Parvos (Parvo Medics trueOne 2400) measured all 3 variables within 2% of the true value; both DeltaTracs and the Vmax Encore System (Vmax) showed similar accuracy in measuring 1 or 2, but not all, variables. For reliability, 8 instruments were shown to be reliable, with the 2 Omnicals ranking best (coefficient of variation [CV] < 1.26%). Both Cosmeds, Parvos, DeltaTracs, 1 Jaeger Oxycon Pro (Oxycon), Max-II Metabolic Systems (Max-II), and Vmax were reliable for at least 1 variable (CV ≤ 3%). For multiple regression, humidity and amount of combusted methanol were significant predictors of RER (R2 = 0.33, P <.001). Temperature and amount of burned methanol were significant predictors of O2 recovery (R2 = 0.18, P <.001); only humidity was a predictor for CO2 recovery (R2 = 0.15, P <.001). Conclusions: Omnical, Parvo, Cosmed, and DeltaTrac had greater accuracy and reliability. The small number of instruments tested and expected differences in gas calibration variability limits the generalizability of conclusions. Finally, humidity and temperature could be modified in the laboratory to optimize IC conditions.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk laboratorie- och mätteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Laboratory and Measurements Technologies (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Klinisk laboratoriemedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Clinical Laboratory Medicine (hsv//eng)
Nyckelord
- accuracy
- energy metabolism
- indirect calorimetry
- metabolic cart
- methanol
- reliability
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- Av författaren/redakt...
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Kaviani, Sepideh
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Schoeller, Dale ...
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Ravussin, Eric
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Melanson, Edward ...
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Henes, Sarah T.
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Dugas, Lara R.
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visa fler...
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Dechert, Ronald ...
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Mitri, George
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Schoffelen, Paul ...
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Gubbels, Pim
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Tornberg, Asa
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Garland, Stephen
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Akkermans, Marco
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Cooper, Jamie A.
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Medicinteknik
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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Nutrition in Cli ...
- Av lärosätet
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Lunds universitet
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Malmö universitet