{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:23:11Z","timestamp":1760242991804,"version":"build-2065373602"},"reference-count":66,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2015,2,26]],"date-time":"2015-02-26T00:00:00Z","timestamp":1424908800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Coca-Cola , Inc."}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>This study aimed to present data on Portuguese children (aged 9\u201311 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\u2013Armitage chi-square test indicated a linear and negative trend (p &lt; 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\u2019 roles on PA compliance when designing efficient intervention strategies to promote healthy and active lifestyles in children.<\/jats:p>","DOI":"10.3390\/ijerph120302557","type":"journal-article","created":{"date-parts":[[2015,2,26]],"date-time":"2015-02-26T10:07:43Z","timestamp":1424945263000},"page":"2557-2573","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["A Count Model to Study the Correlates of 60 Min of Daily Physical Activity in Portuguese Children"],"prefix":"10.3390","volume":"12","author":[{"given":"Alessandra","family":"Borges","sequence":"first","affiliation":[{"name":"CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Pl\u00e1cido Costa, 91, 4250-Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4991-1238","authenticated-orcid":false,"given":"Thayse","family":"Gomes","sequence":"additional","affiliation":[{"name":"CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Pl\u00e1cido Costa, 91, 4250-Porto, Portugal"}]},{"given":"Daniel","family":"Santos","sequence":"additional","affiliation":[{"name":"CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Pl\u00e1cido Costa, 91, 4250-Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4661-3879","authenticated-orcid":false,"given":"Sara","family":"Pereira","sequence":"additional","affiliation":[{"name":"CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Pl\u00e1cido Costa, 91, 4250-Porto, Portugal"}]},{"given":"Fernanda","family":"Santos","sequence":"additional","affiliation":[{"name":"CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Pl\u00e1cido Costa, 91, 4250-Porto, Portugal"},{"name":"Department of Physical Education and Sports Science, CAV, Federal University of Pernambuco, 55608-680 Vit\u00f3ria de Santo Ant\u00e3o, PE, Brazil"}]},{"given":"Raquel","family":"Chaves","sequence":"additional","affiliation":[{"name":"Physical Education Department, Federal University of Technology-Parana, Campus Curitiba, Curitiba\/PR, 3165\u2014Rebou\u00e7as CEP 80230-901, Brazil"}]},{"given":"Peter","family":"Katzmarzyk","sequence":"additional","affiliation":[{"name":"Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3273-0046","authenticated-orcid":false,"given":"Jos\u00e9","family":"Maia","sequence":"additional","affiliation":[{"name":"CIFI2D, Faculty of Sports, University of Porto, Rua Dr. Pl\u00e1cido Costa, 91, 4250-Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2015,2,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"859","DOI":"10.1136\/bjsports-2011-090190","article-title":"What proportion of youth are physically active? 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