A Count Model to Study the Correlates of 60 Min of Daily Physical Activity in Portuguese Children

Alessandra Borges, Thayse Natacha Gomes, Daniel Santos, Sara Pereira, Fernanda K. dos Santos, Raquel Chaves, Peter T. Katzmarzyk and José Maia
Additional contact information
Alessandra Borges: CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Plácido Costa, 91, 4250-Porto, Portugal
Thayse Natacha Gomes: CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Plácido Costa, 91, 4250-Porto, Portugal
Daniel Santos: CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Plácido Costa, 91, 4250-Porto, Portugal
Sara Pereira: CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Plácido Costa, 91, 4250-Porto, Portugal
Fernanda K. dos Santos: CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Plácido Costa, 91, 4250-Porto, Portugal
Raquel Chaves: Physical Education Department, Federal University of Technology-Parana, Campus Curitiba, Curitiba/PR, 3165—Rebouças CEP 80230-901, Brazil
Peter T. Katzmarzyk: Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA
José Maia: CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Plácido Costa, 91, 4250-Porto, Portugal

IJERPH, 2015, vol. 12, issue 3, 1-17

Abstract: This study aimed to present data on Portuguese children (aged 9–11 years) complying with moderate-to-vigorous physical activity (MVPA) guidelines, and to identify the importance of correlates from multiple domains associated with meeting the guidelines. Physical activity (PA) was objectively assessed by accelerometry throughout seven days on 777 children. A count model using Poisson regression was used to identify the best set of correlates that predicts the variability in meeting the guidelines. Only 3.1% of children met the recommended daily 60 min of MVPA for all seven days of the week. Further, the Cochrane–Armitage chi-square test indicated a linear and negative trend ( p < 0.001) from none to all seven days of children complying with the guidelines. The count model explained 22% of the variance in meeting MVPA guidelines daily. Being a girl, having a higher BMI, belonging to families with higher income, sleeping more and taking greater time walking from home to a sporting venue significantly reduced the probability of meeting daily recommended MVPA across the seven days. Furthermore, compared to girls, increasing sleep time in boys increased their chances of compliance with the MVPA recommendations. These results reinforce the relevance of considering different covariates’ roles on PA compliance when designing efficient intervention strategies to promote healthy and active lifestyles in children.

Keywords: physical activity; children; ISCOLE; MVPA (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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