| Validity of the Oxycon Mobile metabolic system under field measuring conditions. | |
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MedLine Citation:
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PMID: 21559947 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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This study aimed to validate a portable metabolic system in field measuring conditions, such as prolonged moderate exercise at low temperatures, high humidity and with external wind. VO(2), VCO(2), RER and V (E) were measured using the Oxycon Mobile (OM), with a windshield, during cycle ergometer exercise: (1) indoors at three submaximal workloads with no wind or with external wind (13-20 m s(-1)) from front, side and back; (2) at two submaximal workloads outdoors [12 ± 2°C; 86 ± 7% relative humidity (RH)], with and without a system for drying the ambient air around the air sampling tube; and (3) at one workload outdoors for 45 min (5 ± 4°C; 69 ± 16.5% RH). Any physiological drift was checked for with pre- and postmeasurements by the Douglas bag method (DBM). A minor effect of external wind from behind was noted in RER and V (E) (-2 and -3%). The system for drying the ambient air around the gas sampling tube had no effect on the measured levels. A small difference in VCO(2) drift between the OM and DBM (1.5 mL min(-2)) was noted in the stability test. The results indicated that heavy external wind applied from different directions generally does not affect the measurements of the OM and further that, when using a unit for drying the ambient air around the gas sampling tube, the OM can accurately measure VO(2), RER and V (E) at submaximal workloads for at least 45 min under challenging conditions with regard to humidity and temperature. |
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Authors:
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Jane Salier Eriksson; Hans Rosdahl; Peter Schantz |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-5-11 |
Journal Detail:
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Title: European journal of applied physiology Volume: - ISSN: 1439-6327 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-5-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100954790 Medline TA: Eur J Appl Physiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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The Research Unit for Movement, Health and Environment, The Åstrand Laboratory and The Laboratory for Applied Sport and Science, GIH, The Swedish School of Sport and Health Sciences, Stockholm, Sweden. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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