The energy demands of portable gas analysis system carriage during walking and running

Sparks, S. Andy, Chandler, Phillip, Bailey, Thomas G., Marchant, David C. and Orme, Duncan (2013) The energy demands of portable gas analysis system carriage during walking and running. Ergonomics, 56 12: 1901-1907. doi:10.1080/00140139.2013.839830

Author Sparks, S. Andy
Chandler, Phillip
Bailey, Thomas G.
Marchant, David C.
Orme, Duncan
Title The energy demands of portable gas analysis system carriage during walking and running
Journal name Ergonomics   Check publisher's open access policy
ISSN 0014-0139
Publication date 2013-08-17
Year available 2013
Sub-type Article (original research)
DOI 10.1080/00140139.2013.839830
Open Access Status Not yet assessed
Volume 56
Issue 12
Start page 1901
End page 1907
Total pages 7
Place of publication Oxfordshire, United Kingdom
Publisher Taylor & Francis
Language eng
Abstract The aim of this study was to evaluate the carriage of a portable gas analyser during prolonged treadmill exercise at a variety of speeds. Ten male participants completed six trials at different speeds (4, 8 and 12kmh(-1)) for 40min whilst wearing the analyser (P) or where the analyser was externally supported (L). Throughout each trial, respiratory gases, heart rate (HR), perceptions of effort and energy expenditure (EE) were measured. Significantly higher EE occurred during P12 (p=0.01) than during L12 (855.3104.3; CI=780.7-930.0 and 801.5 +/- 82.2kcal; CI=742.7-860.3kcal, respectively), but not at the other speeds; despite this, perceptions of effort and HR responses were unaffected. This additional EE is likely caused by alterations to posture which increase oxygen demand. The use of such systems is unlikely to affect low-intensity tasks, but researchers should use caution when interpreting data, particularly when exercise duration exceeds 30min and laboratory-based analysers should be used where possible. Practitioner Summary: There is extensive use of portable gas analysers in many settings. This study suggests that there is no additional effect on energy expenditure until running speeds of 8kmh(-1) are exceeded. Future work should consider the effects of gas analyser carriage in a wider variety of populations, environments and terrain.
Keyword Load Carriage
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Human Movement and Nutrition Sciences Publications
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Created: Tue, 06 Mar 2018, 10:14:30 EST by Tom Bailey on behalf of Institute of Continuing & TESOL Education