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- Title
Validation of Accelerometer Prediction Equations in Children with Chronic Disease.
- Authors
Stephens, Samantha; Pullenayegum, Eleanor; Schneiderman, Jane; McCrindle, Brian; Abad, Audrey; Ignas, Dan; Takken, Tim; Beyene, Joseph; Biggar, Doug; Van Der Net, Janjaap; Esliger, Dale W.; Tremblay, Mark; Longmuir, Pat; Feldman, Brian
- Abstract
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 librosis (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-.S8) (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.
- Subjects
ACCELEROMETERS; ANALYSIS of variance; CALORIMETRY; CARDIOPULMONARY system; CHRONIC diseases; CONFIDENCE intervals; CONGENITAL heart disease; CYSTIC fibrosis; DERMATOMYOSITIS; ENERGY metabolism in children; EXERCISE tests; HEART beat; HEMOPHILIA; MATHEMATICS; RESEARCH methodology; MUSCLE diseases; PROBABILITY theory; QUALITY of life; QUESTIONNAIRES; RESEARCH evaluation; RESEARCH funding; JUVENILE idiopathic arthritis; SKINFOLD thickness; T-test (Statistics); ACTIVITIES of daily living; BODY mass index; VISUAL analog scale; ACCELEROMETRY; OXYGEN consumption; PHYSICAL activity; DATA analysis software; DESCRIPTIVE statistics; INTRACLASS correlation; CHILDREN
- Publication
Pediatric Exercise Science, 2016, Vol 28, Issue 1, p117
- ISSN
0899-8493
- Publication type
Article
- DOI
10.1123/pes.2014-0185