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Título : Reliability and validity of a questionnaire for physical activity assessment in South American children and adolescents: The SAYCARE Study
Autor : Nascimento Ferreira, Marcus Vinıcius
Ferreira De Moraes, Augusto Cesar
Toazza Oliveira, Paulo Vinıcius
Forjaz, Claudia L.M.
Aristizábal Rivera, Juan Carlos
Santaliesra Pasıas, Alba M.
Lepera, Candela
Nascimento Junior, Walter Viana
Skapino, Estela
Delgado, Carlos Alberto
Moreno, Luis Alberto
Barbosa Carvalho, Heráclito
Fecha de publicación : 2018
Editorial : Wiley
Citación : Nascimento-Ferreira M, Ferreira-De Moraes A, Toazza-Oliveira P, Forjaz C, Aristizábal-Rivera J, et al. Reliability and validity of a questionnaire for physical activity assessment in South American children and adolescents: The SAYCARE Study. Obesity. 2018; 26: S23-S30.
Abstract : Objective: The objective of this article is to test the reliability and validity of the new and innovative physical activity (PA) questionnaire. Methods: Subsamples from the South American Youth/Child Cardiovascular and Environment Study (SAYCARE) study were included to examine its reliability (children: n 5 161; adolescents: n 5 177) and validity (children: n 5 82; adolescents: n 5 60). The questionnaire consists of three dimensions of PA (lei-sure, active commuting, and school) performed during the last week. To assess its validity, the subjects wore accelerometers for at least 3 days and 8 h/d (at least one weekend day). The reliability was analyzed by correlation coefficients. In addition, Bland-Altman analysis and a multilevel regression were applied to estimate the measurement bias, limits of agreement, and influence of contextual variables. Results: In children, the questionnaire showed consistent reliability (q 5 0.56) and moderate validity (q 5 0.46), and the contextual variable variance explained 43.0% with 222.9 min/d bias. In adolescents, the reliability was higher (q 5 0.76) and the validity was almost excellent (q 5 0.88), with 66.7% of the variance explained by city level with 16.0 min/d PA bias. Conclusions: The SAYCARE PA questionnaire shows acceptable (in children) to strong (in adolescents) reliability and strong validity in the measurement of PA in the pediatric population from low- to middle-income countries.
Grupo de INV. : Grupo de Investigación en Fisiología y Bioquímica - Physis
URI : http://hdl.handle.net/10495/12076
ISSN : 1930739X
Aparece en las colecciones: CIAN (Centro de Investigación en Alimentación y Nutrición)

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