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Estimation of Daily Energy Expenditure in Pregnant and Non-Pregnant Women Using a Wrist-Worn Tri-Axial Accelerometer
Institute Metab Science.
Umea University Hospital.
Med Research Council Human Nutr Research.
Umea University Hospital.
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2011 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 6, no 7Article in journal (Refereed) Published
Abstract [en]

ackground: Few studies have compared the validity of objective measures of physical activity energy expenditure (PAEE) in pregnant and non-pregnant women. PAEE is commonly estimated with accelerometers attached to the hip or waist, but little is known about the validity and participant acceptability of wrist attachment. The objectives of the current study were to assess the validity of a simple summary measure derived from a wrist-worn accelerometer (GENEA, Unilever Discover, UK) to estimate PAEE in pregnant and non-pregnant women, and to evaluate participant acceptability. less thanbrgreater than less thanbrgreater thanMethods: Non-pregnant (N = 73) and pregnant (N = 35) Swedish women (aged 20-35 yrs) wore the accelerometer on their wrist for 10 days during which total energy expenditure (TEE) was assessed using doubly-labelled water. PAEE was calculated as 0.96TEE-REE. British participants (N = 99; aged 22-65 yrs) wore accelerometers on their non-dominant wrist and hip for seven days and were asked to score the acceptability of monitor placement (scored 1 [least] through 10 [most] acceptable). less thanbrgreater than less thanbrgreater thanResults: There was no significant correlation between body weight and PAEE. In non-pregnant women, acceleration explained 24% of the variation in PAEE, which decreased to 19% in leave-one-out cross-validation. In pregnant women, acceleration explained 11% of the variation in PAEE, which was not significant in leave-one-out cross-validation. Median (IQR) acceptability of wrist and hip placement was 9(8-10) and 9(7-10), respectively; there was a within-individual difference of 0.47 (p andlt; .001). less thanbrgreater than less thanbrgreater thanConclusions: A simple summary measure derived from a wrist-worn tri-axial accelerometer adds significantly to the prediction of energy expenditure in non-pregnant women and is scored acceptable by participants.

Place, publisher, year, edition, pages
Public Library of Science (PLoS) , 2011. Vol. 6, no 7
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-69985DOI: 10.1371/journal.pone.0022922ISI: 000293286500052OAI: oai:DiVA.org:liu-69985DiVA: diva2:434004
Note
Original Publication: Vincent T van Hees, Frida Renstrom, Antony Wright, Anna Gradmark, Michael Catt, Kong Y Chen, Marie Löf, Les Bluck, Jeremy Pomeroy, Nicholas J Wareham, Ulf Ekelund, Soren Brage and Paul W Franks, Estimation of Daily Energy Expenditure in Pregnant and Non-Pregnant Women Using a Wrist-Worn Tri-Axial Accelerometer, 2011, PLoS ONE, (6), 7. http://dx.doi.org/10.1371/journal.pone.0022922 Licensee: Public Library of Science (PLoS) http://www.plos.org/ Available from: 2011-08-12 Created: 2011-08-12 Last updated: 2017-12-08

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