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Validation of actigraph accelerometer estimates of total energy expenditure in young children

Reilly, John J and Kelly, L.A. and Montgomery, C. and Jackson, D.M. and Slater, C and Grant, S and Paton, J.Y. (2006) Validation of actigraph accelerometer estimates of total energy expenditure in young children. International Journal of Pediatric Obesity, 1 (3). pp. 161-167. ISSN 1747-7166

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Abstract

Purpose. To assess the validity of two equations based on the Actigraph CSA/MTI accelerometer for prediction of total energy expenditure (TEE). Research methods and procedures. The criterion was TEE measured using the doubly labeled water method in 85 children, mean age 4.6 years (SD 1.1), over 7 days in the pre-schoolers and 10 days in the school-age participants. Children wore the Actigraph concurrently during waking hours, for 3 of 7 days (pre-schoolers) or 7 of 10 days (school-age children). We tested two prediction equations based on accelerometry. Agreement between predicted and measured TEE was assessed using the ‘Bland Altman’ approach. Results. Mean TEE measured by doubly-labeled water was 5.8 MJ/d (SD 1.6). Mean error for the Ekelund equation was + 0.3 MJ/d (limits of agreement − 3.7 to + 4.3), and for that of Puyau et al. was − 0.3 MJ/d (limits of agreement + 3.2 to − 3.8). Conclusions. Simple approaches using the Actigraph appear to be inadequate for the estimation of free-living TEE in young children at present.

Item type: Article
ID code: 36159
Keywords: doubly labeled water method, obesity, Physical activity, energy metabolism, Personal health and hygiene, including exercise, nutrition , Pediatrics, Perinatology, and Child Health, Public Health, Environmental and Occupational Health, Health Policy, Nutrition and Dietetics
Subjects: Medicine > Public aspects of medicine > Personal health and hygiene, including exercise, nutrition
Department: Faculty of Humanities and Social Sciences (HaSS) > School of Psychological Science and Health > Physical Activity for Health
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    Depositing user: Pure Administrator
    Date Deposited: 29 Nov 2011 12:47
    Last modified: 05 Sep 2014 14:01
    URI: http://strathprints.strath.ac.uk/id/eprint/36159

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