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Uptime normative values in children aged 8 to 15 years

Published online by Cambridge University Press:  06 February 2003

B Eldridge ,
M Galea ,
A McCoy ,
R Wolfe  and
H K Graham
B Eldridge
Affiliation:
Royal Children's Hospital, Melbourne, Australia.
M Galea
Affiliation:
University of MelbourneAustralia.
A McCoy
Affiliation:
Royal Children's Hospital, Melbourne, Australia.
R Wolfe
Affiliation:
Department of Epidemiology and Preventive Medicine, Monash UniversityAustralia.
H K Graham
Affiliation:
Royal Children's Hospital, Melbourne, Australia.
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Abstract

The ‘Uptimer’ is a custom-made lightweight battery-operated remote activity monitor that records the amount of time an individual spends in the upright position, which is also known as ‘uptime’. The aims of this study were to determine levels of uptime over 24 hours and the relation between uptime and a child's age, sex, height, weight, and body mass index (BMI). Uptime was recorded in 529 normally developing children (318 females, 211 males), aged between 8 and 15 years. All children wore an Uptimer continuously for a 24-hour period that included a typical school day. Mean uptime for children in this study was 5.4 hours (SD 1.3; range 1.5 to 10.3 hours), over a 24-hour period. Uptime followed approximately a normal distribution in this population and did not have a linear relation to age, height, weight, nor BMI. Results of this study may be used as a normative database for the evaluation of uptime in children with physical disabilities.

Type
Original Articles
Information
Developmental Medicine and Child Neurology , Volume 45 , Issue 3 , March 2003 , pp. 189 - 193
Copyright
© 2003 Mac Keith Press

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