Estimation of Daily Energy Expenditure in Pregnant and Non-Pregnant Women Using a Wrist-Worn Tri-Axial Accelerometer
作者： Vincent T. van Hees , Frida Renström , Antony Wright , Anna Gradmark , Michael Catt
DOI: 10.1371/JOURNAL.PONE.0022922
关键词: Energy expenditure 、 Activities of daily living 、 Accelerometer 、 Physical activity 、 Wrist 、 Triaxial accelerometer 、 Body weight 、 Medicine 、 Physical therapy 、 Waist 、 General Biochemistry, Genetics and Molecular Biology 、 General Agricultural and Biological Sciences 、 General Medicine
摘要: Background: Few studies have compared the validity of objective measures physical activity energy expenditure (PAEE) in pregnant and non-pregnant women. PAEE is commonly estimated with accelerometers attached to hip or waist, but little known about participant acceptability wrist attachment. The objectives current study were assess a simple summary measure derived from wrist-worn accelerometer (GENEA, Unilever Discover, UK) estimate women, evaluate acceptability. Methods: Non-pregnant (N=73) (N=35) Swedish women (aged 20‐35 yrs) wore on their for 10 days during which total (TEE) was assessed using doubly-labelled water. calculated as 0.96TEE-REE. British participants (N=99; aged 22‐65 non-dominant seven asked score monitor placement (scored 1 [least] through [most] acceptable). Results: There no significant correlation between body weight PAEE. In acceleration explained 24% variation PAEE, decreased 19% leave-one-out cross-validation. 11% not Median (IQR) 9(8‐10) 9(7‐10), respectively; there within-individual difference 0.47 (p,.001). Conclusions: A tri-axial adds significantly prediction scored acceptable by participants.
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