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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/4022

Título: Correlates of changes in BMI of children from the Azores islands
Autor: Martins, D.
Maia, José A.R.
Seabra, André
Silva, R.G.
Lopes, Vítor P.
Katzmarzyk, P.
Beunen, G.
Palavras-chave: Longitudinal
Tracking
BMI trajectories
Physical activity
KTK
Aerobic fitness
Issue Date: 2010
Editora: Nature Publishing Group
Citação: Martins, D.; Maia, J. A. R.; Seabra, A.; Silva, R. G; Lopes, Vítor P.; Katzmarzyk, P.; Beunen, G. (2010) - Correlates of changes in BMI of children from the Azores islands. International Journal of Obesity. ISSN 0307-0565. 34:10, p. 1487-1493
Resumo: Objective: To model changes in body mass index (BMI), including its stability, and to investigate the association between physical activity, 1-mile run/walk and levels of gross motor coordination and BMI during 5 consecutive years. Design: A longitudinal study of children 6 years of age at baseline followed at annual intervals over 5 years. Subjects: A total of 285 children (143 boys and 142 girls) were enrolled in grade 1 (age 6 years) and followed through grade 5 (age 10 years). Measurements: BMI was recorded and physical activity was assessed by questionnaire, aerobic fitness was evaluated with the 1-mile run/walk and gross motor coordination was measured with the KTK test battery (Korperkoordination test fur Kinder). Multilevel modelling techniques were for the primary analysis. Results: Changes in BMI showed similar curvilinear trends in boys and girls, with ample inter-individual crossing trajectories that is, low tracking. Longitudinal changes in physical activity (PA) and aerobic fitness were not significantly associated with BMI-changes during the 5 years. Children who were more proficient in their motor coordination showed lower values of BMI during the 5 years. Conclusions: BMI trajectories of both boys and girls show low tracking of BMI-values. Considerable inter-individual variation exists both in baseline BMI-values and changes (velocity and acceleration) over time. PA and fitness were not associated with BMI-changes, but gross motor function was negatively associated with BMI-changes. No gender-specific associations were found. If confirmed in other populations these observations could be translated in the promotion of physical activities that improve gross motor function in children aged 6-10 years. This seems to be of major importance for the physical education curriculum of primary school children.
Arbitragem científica: yes
URI: http://hdl.handle.net/10198/4022
ISSN: 0307-0565
Appears in Collections:DCDEF - Artigos em Revistas Indexados ao ISI

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