Variability of Maximum Oxygen Consumption Measurement in Various Metabolic Systems

Babineau, Charles; Léger, L; Long, Arthur; Bosquet, Laurent

doi:10.1519/00124278-199911000-00004

Cited by 2 publications

(5 citation statements)

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“…By convention, most certifying organizations tolerate a maximal error of 4% in . VO 2 determination or 2-3 mL/kg/min (Babineau et al, 1999). In contrast to this differences between 3% and 10% can be found in the literature.…”

Section: Precisionmentioning

confidence: 69%

“…VO 2 max (Hiilloskorpi et al, 2000). Furthermore Babineau et al (1999) consolidated this by demonstrating differences in the order of 5-10/mL/kg/min (10-17%) between three metabolic systems in the absolute and relative values of . VO 2 max and in the volume of expired gas for submaximal and maximal work.…”

Section: Precisionmentioning

confidence: 70%

“…In order to verify the preciseness of this important parameter, a number of studies have examined the biological variability of day-to-day measures and have reported good reliability values (Katch et al, 1982;Kuipers et al, 1985). Several studies make comparisons of the measurement agreement between different automated systems and between automated systems and a criterion method (Kannagi et al, 1983;Versteeg & Kipperluis, 1989;La Mere et al, 1993;Miles et al, 1994;Unnithan et al, 1994;Babineau et al, 1999;Jacobs, 1999;Midownik et al, 2000;Bassett et al, 2001). Furthermore, many new portable metabolic measuring devices are being validated against a standard reference value (Melansen et al, 1996;Wideman et al, 1996;Midownik et al, 2000), that most consider to be accurate and assume, without hesitation, that it represents the gold standard.…”

mentioning

confidence: 99%

“…Although researchers agree that quality control, both within and between laboratories, is important in oxygen consumption measurements and have heard about individual cases showing large differences in . VO 2 values it is surprising that only few articles document this issue (Babineau et al, 1999). Electronic indexing systems (Medline, Sports Discus, etc.)…”

mentioning

confidence: 99%

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Validity and reliability of selected commercially available metabolic analyzer systems

Hodges

Brodie

Bromley

2005

Scandinavian Med Sci Sports

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Automated metabolic gas analysis systems have advanced considerably over the past decade. They provide an abundance of information, which is not possible by using the traditional Douglas bag method and have become an essential tool in both physiological monitoring and in the diagnosis of cardiopulmonary disease. The validity and reliability of the different online metabolic analyzer systems are not well known, with relatively few independent studies being published. The purpose of this review was to examine and evaluate current literature regarding the validity and reliability of commercially available metabolic analyzer systems. This review reveals significant differences between the available systems in the way that they capture and process basic respiratory measurements. Online metabolic analyzer systems were found to vary significantly when compared with Douglas bag methods. These variations have the potential to introduce error into the accuracy with which the health of cardiovascular system can be assessed or training loads can be assigned. Compounding this is the fact that many automated systems are a "black box", which makes it easy to generate data without the user having much understanding of how the data were generated. In conclusion automated metabolic analyser systems are a scientifically robust method for the evaluation of cardiopulmonary function. Individual researchers and clinicians must, however, be able to make their own decisions about the level of error that is tolerable for their individual needs. This presents a significant practical challenge in light of the speed with which technical developments in the field occur and we make some suggestions for the formulation of intersystem comparison studies.

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Section: Precisionmentioning

confidence: 69%

Section: Precisionmentioning

confidence: 70%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Validity and reliability of selected commercially available metabolic analyzer systems

Hodges

Brodie

Bromley

2005

Scandinavian Med Sci Sports

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“…Within‐participant variation of 5–6% for repeated maximal aerobic capacity ( V O 2max ) tests has been noted with approximately 90% of this variation attributed to biological error and less than 10% associated with technical error (Fielding, Frontera, Hughes, & Fisher, 1997; MacFarlane, 2001; Shephard, Rankinen, & Bouchard, 2004). While it appears that technical measurement error contributes only a small extent to overall variability, errors in V O 2 measurement within and between gas analysis systems of 10–20% have been reported during sub‐maximal (Babineau, Leger, Long, & Bosquet, 1999; Carter & Jeukendrup, 2002) and maximal exercise (Babineau et al, 1999; Matthews, Bush, & Morales, 1987). Such measurement error can affect both the reliability and the validity of the data.…”

Section: Introductionmentioning

confidence: 99%

Reliability of two metabolic systems during sport‐specific upper‐body ergometry

Sealey

Leicht

Spinks

et al. 2010

European Journal of Sport Science

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In this study, we assessed the reliability of the portable Cosmed K4b 2 and the laboratory-based Powerlab 8M gas analysis systems for measuring peak physiological variables during sport-specific upper-body exercise, to determine the error associated with repeated physiological performance tests. Ten trained female outrigger canoeists completed two 1000-m ergometer time trials using each gas analysis system. Peak physiological responses were analysed using a two-way repeatedmeasures analysis of variance and post hoc Tukey HSD tests. Reliability and within-participant variability of peak responses were assessed using intraclass correlation coefficients (ICC) and measurement bias/ratios with 95% limits of agreement (LOA), respectively. Performance and peak physiological responses were similar across trials for each individual system, although the Powerlab 8M reported significantly higher (13.6%) carbon dioxide production (VCO 2 ) and non-significantly higher (7.4%) oxygen consumption (VO 2 ) than the Cosmed K4b 2 . Reliability of the Cosmed K4b 2 was high for VCO 2 (0.98) and moderate for ventilation (0.85), whereas that for the Powerlab 8M was high for VCO 2 (0.97) and tidal volume (0.94) and moderate for VO 2 (0.87). Overall, the two systems report similar VO 2 variability (8Á9%) with the Powerlab 8M reporting higher VO 2 and VCO 2 values than the Cosmed K4b 2 . Therefore, while each system is reliable, results from each of the systems should not be used interchangeably.

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Variability of Maximum Oxygen Consumption Measurement in Various Metabolic Systems

Cited by 2 publications

References 0 publications

Validity and reliability of selected commercially available metabolic analyzer systems

Validity and reliability of selected commercially available metabolic analyzer systems

Reliability of two metabolic systems during sport‐specific upper‐body ergometry

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