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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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VALIDATION OF A NEW PORTABLE METABOLIC SYSTEM DURING AN INCREMENTAL RUNNING TEST |
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Víctor Díaz1, Pedro José Benito1, Ana Belén Peinado1, María Álvarez1, Carlos Martín1, Valter Di Salvo2, Fabio Pigozzi2, Nicola Maffulli3 
and Fracisco Javier Calderón1 |
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1Laboratory of Exercise Physiology, Faculty of Physical Activity and Sports Science (INEF), Technical University of Madrid, 2Department of Health Sciences, Rome University of Movement and Science, Italy, 3Department of Trauma and Orthopaedic Surgery, Keele University Medical School, Store On Trent, England |
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© Journal of Sports Science and Medicine (2008) 7, 532 - 536 Search Google Scholar for Citing Articles |
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| ABSTRACT | |||
| We tested a new portable metabolic system, the Jaeger Oxycon Mobile
(OM) at a range of running speeds. Six subjects carried out, in random order,
two incremental tests on a treadmill, one of them using the OM, and the
other using the Jaeger Oxycon Pro (OP). There are systematic errors in the
measurements of oxygen consumption (VO2) and respiratory exchange
ratio (RER) with the OM. Production of CO2 (VCO2)
tends to be overestimated by the OM, although the differences are not significant.
Ventilation (VE) showed very similar values in both analyzers. Data of VO2
and RER were corrected with a regression equation which minimised the differences
among the devices. The portable metabolic system OM makes systematic errors
in measurements of VO2 and RER which can be adjusted with a regression
analysis to obtain data comparable to those obtained by fixed systems.
Key words: Portable metabolic chart, accuracy, consistency, running, oxygen consumption. |
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