Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12136/235
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Title: Carrying loads: validating a portable tri-axial accelerometer during frequent and brief physical activity
Authors: Zorrilla-Revilla, Guillermo
Mateos Cachorro, Ana
Prado-Nóvoa, Olalla
Vidal-Cordasco, Marco
Rodríguez, Jesús
Keywords: Energy expenditure;SenseWear Armband™ mini;Accelerometry;Physical activity;Indirect calorimetry;Resting metabolic rate
Issue Date: Aug-2017
Publisher: Elsevier
Citation: Journal of Science and Medicine in Sport, 2017, 20 (8), 771-776
Abstract: Objectives The aim of this study is to evaluate the validity of the SenseWear Armband™ (SWA, Model MF-SW, BodyMedia Inc.) as a tool to assess daily brief, light- to moderate-intensity activities. Design A total of 41 volunteers were recruited (27 males, 14 females) to perform several trials, including a resting metabolic rate test and a number of walking trials while carrying different loads in a backpack. Methods Energy expenditure during trials was measured using both the SWA™ mini device, with the indirect calorimetry method (MasterScreen CPX and Oxycon Mobile JAEGER™ devices) used for validated comparative measurement. Results The SWA™ mini shows agreement with indirect calorimetry in all trials. However, the SWA™ mini over-estimated expenditure in all participants. Individual assessment estimates with the SWA™ mini also exhibited random errors. The variations in energy expenditure (EE) resulting from increased carried loads during the trials were not statistically significant when EE was measured with the SWA™ mini. Furthermore, Metabolic Equivalent of Task (MET) calculation, highly dependent on estimated energy expenditure per unit time, also was likely overestimated. In contrast, the SWA™ mini provided estimates of the resting metabolic rate with a small error. Conclusions The SWA™ mini is not a valid device for estimating energy expenditure in brief light- or moderate activities.
URI: http://hdl.handle.net/20.500.12136/235
ISSN: 1440-2440
1878-1861
DOI: 10.1016/j.jsams.2017.01.236
metadata.dc.relation.publisherversion: https://doi.org/10.1016/j.jsams.2017.01.236
Type: Article
Appears in Collections:Paleobiología
Bioenergía y Análisis del Movimiento

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