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

S A Sparks; P Chandler; Tom G Bailey; D C Marchant; D Orme

doi:10.1080/00140139.2013.839830

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

Journal article

Peer reviewed

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

S A Sparks, P Chandler, Tom G Bailey, D C Marchant and D Orme

Ergonomics, Vol.56(12), pp.1901-1907

2013

DOI: https://doi.org/10.1080/00140139.2013.839830

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Abstract

load carriage

locomotion

prolonged exercise

oxygen cost

energy expenditure

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 12 km h- 1) for 40 min 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 (855.3±104.3; CI = 780.7-930.0 and 801.5±82.2 kcal; CI = 742.7-860.3 kcal, 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 30 min 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 8 km h- 1 are exceeded. Future work should consider the effects of gas analyser carriage in a wider variety of populations, environments and terrain. © 2013 Taylor & Francis.

Details

Title: The energy demands of portable gas analysis system carriage during walking and running
Authors: S A Sparks (Author) - Edge Hill University, United Kingdom
P Chandler (Author) - Edge Hill University, United Kingdom
Tom G Bailey (Author) - Liverpool John Moores University, United Kingdom
D C Marchant (Author) - Liverpool John Moores University, United Kingdom
D Orme (Author) - University of Cambria, United Kingdom
Publication details: Ergonomics, Vol.56(12), pp.1901-1907
Publisher: Taylor & Francis Ltd.
Date published: 2013
DOI: 10.1080/00140139.2013.839830
ISSN: 0014-0139
Organisation Unit: UniSC Clinical Trials Centre; University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99449385202621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Engineering, Industrial; Ergonomics; Psychology; Psychology, Applied