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Validation of accelerometer prediction equations in children with chronic disease

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posted on 2016-04-08, 08:41 authored by Samantha K. Stephens, Tim Takken, Dale EsligerDale Esliger, Eleanor Pullenayegum, Joseph Beyene, Mark S. Tremblay, Jane Schneiderman, Doug Biggar, Pat Longmuir, Brian McCrindle, Audrey Abad, Dan Ignas, Janjaap Van Der Net, Brian Feldman
© 2016 Human Kinetics, Inc. The purpose of this study was to assess the criterion validity of existing accelerometer-based energy expenditure (EE) prediction equations among children with chronic conditions, and to develop new prediction equations. Children with congenital heart disease (CHD), cystic fibrosis (CF), dermatomyositis (JDM), juvenile arthritis (JA), inherited muscle disease (IMD), and hemophilia (HE) completed 7 tasks while EE was measured using indirect calorimetry with counts determined by accelerometer. Agreement between predicted EE and measured EE was assessed. Disease-specific equations and cut points were developed and cross-validated. In total, 196 subjects participated. One participant dropped out before testing due to time constraints, while 15 CHD, 32 CF, 31 JDM, 31 JA, 30 IMD, 28 HE, and 29 healthy controls completed the study. Agreement between predicted and measured EE varied across disease group and ranged from (ICC).13-.46. Disease-specific prediction equations exhibited a range of results (ICC.62-.88) (SE 0.45-0.78). In conclusion, poor agreement was demonstrated using current prediction equations in children with chronic conditions. Disease-specific equations and cut points were developed.

Funding

This study was funded with a grant from the Canadian Institute of Health Research (# 167391/CIHR)

History

School

  • Sport, Exercise and Health Sciences

Published in

Pediatric Exercise Science

Volume

28

Issue

1

Pages

117 - 132

Citation

STEPHENS, S.K. ...et al., 2016. Validation of accelerometer prediction equations in children with chronic disease. Pediatric Exercise Science, 28(1), pp. 117-132.

Publisher

© Human Kinetics Publishing as accepted for publication

Version

  • AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2016-01-31

Notes

This paper was accepted for publication in the journal Pediatric Exercise Science and the definitive published version is available at: http://dx.doi.org/10.1123/pes.2014-0185

ISSN

0899-8493

eISSN

1543-2920

Language

  • en

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