Measurement of VO2, VCO2, and evaporative water loss with a flow through mask

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Abstract

Equations for the calculation of VO2, VCO2, and evaporative water loss were derived for use of a paramagnetic gas analyzer with a flow through respirometry system and an open or closed mask. The magnitude of errors involved in the determination of VO2 with no CO2 absorbent are small (±3%) but may be greater if no H2O absorbent is used, unless an appropriate correction is made for evaporative water loss. Data collected for hummingbirds (Selasphorus sasin) and monitor lizards (Varanus gouldii) indicate the validity of the technics described for the measurement of RQ and evaporative water loss and demonstrate the use of paramagnetic gas analyzers in monitoring respiratory patterns.
Original languageEnglish
Pages (from-to)120-123
Number of pages4
JournalJournal of Applied Physiology
Volume42
Issue number1
DOIs
Publication statusPublished - 1977

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title = "Measurement of VO2, VCO2, and evaporative water loss with a flow through mask",
abstract = "Equations for the calculation of VO2, VCO2, and evaporative water loss were derived for use of a paramagnetic gas analyzer with a flow through respirometry system and an open or closed mask. The magnitude of errors involved in the determination of VO2 with no CO2 absorbent are small (±3{\%}) but may be greater if no H2O absorbent is used, unless an appropriate correction is made for evaporative water loss. Data collected for hummingbirds (Selasphorus sasin) and monitor lizards (Varanus gouldii) indicate the validity of the technics described for the measurement of RQ and evaporative water loss and demonstrate the use of paramagnetic gas analyzers in monitoring respiratory patterns.",
author = "Withers, {P. C.}",
year = "1977",
doi = "10.1152/jappl.1977.42.1.120",
language = "English",
volume = "42",
pages = "120--123",
journal = "Journal of applied physiology (Bethesda, Md. : 1985)",
issn = "1522-1601",
publisher = "American Physiological Society",
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}

Measurement of VO2, VCO2, and evaporative water loss with a flow through mask. / Withers, P. C.

In: Journal of Applied Physiology, Vol. 42, No. 1, 1977, p. 120-123.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of VO2, VCO2, and evaporative water loss with a flow through mask

AU - Withers, P. C.

PY - 1977

Y1 - 1977

N2 - Equations for the calculation of VO2, VCO2, and evaporative water loss were derived for use of a paramagnetic gas analyzer with a flow through respirometry system and an open or closed mask. The magnitude of errors involved in the determination of VO2 with no CO2 absorbent are small (±3%) but may be greater if no H2O absorbent is used, unless an appropriate correction is made for evaporative water loss. Data collected for hummingbirds (Selasphorus sasin) and monitor lizards (Varanus gouldii) indicate the validity of the technics described for the measurement of RQ and evaporative water loss and demonstrate the use of paramagnetic gas analyzers in monitoring respiratory patterns.

AB - Equations for the calculation of VO2, VCO2, and evaporative water loss were derived for use of a paramagnetic gas analyzer with a flow through respirometry system and an open or closed mask. The magnitude of errors involved in the determination of VO2 with no CO2 absorbent are small (±3%) but may be greater if no H2O absorbent is used, unless an appropriate correction is made for evaporative water loss. Data collected for hummingbirds (Selasphorus sasin) and monitor lizards (Varanus gouldii) indicate the validity of the technics described for the measurement of RQ and evaporative water loss and demonstrate the use of paramagnetic gas analyzers in monitoring respiratory patterns.

U2 - 10.1152/jappl.1977.42.1.120

DO - 10.1152/jappl.1977.42.1.120

M3 - Article

VL - 42

SP - 120

EP - 123

JO - Journal of applied physiology (Bethesda, Md. : 1985)

JF - Journal of applied physiology (Bethesda, Md. : 1985)

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