{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T03:07:06Z","timestamp":1767236826642,"version":"3.40.4"},"reference-count":42,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"12","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:sec>\n            <jats:title>Purpose<\/jats:title>\n            <jats:p>This study aimed to describe longitudinal trends in children\u2019s moderate-to-vigorous physical activity (MVPA) and to investigate associations with individual, familial, and school characteristics.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>A sample of 341 Portuguese children age 5\u201310 yr (173 girls) from six age cohorts was followed over 3 yr using a mixed-longitudinal design. Physical activity, body mass index (BMI), gross motor coordination, and musculoskeletal fitness were assessed annually. Information on socioeconomic status and school characteristics was collected and analyzed with mixed models.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>MVPA shows a similar declining trend in both sexes, but on average, boys exceeded the World Health Organization recommendations of 60 min\u00b7d<jats:sup>\u22121<\/jats:sup>. The best model showed that boys spend, on average, more time in MVPA than girls. Children with lower BMI are less prone to the decline in MVPA, whereas higher levels of musculoskeletal fitness were associated with lower declines in MVPA. Of all school characteristics, only playground dimension was related to MVPA decreasing trajectories.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>MVPA systematically declines from 5 to 10 yr of age in both boys and girls, but boys remained more active than girls across the age range. The best predictors of MVPA decline are sex, BMI, musculoskeletal fitness, and school playground dimension.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1249\/mss.0000000000003013","type":"journal-article","created":{"date-parts":[[2022,8,9]],"date-time":"2022-08-09T04:00:10Z","timestamp":1660017610000},"page":"2129-2137","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":25,"title":["Correlates of the Physical Activity Decline during Childhood"],"prefix":"10.1249","volume":"54","author":[{"given":"SARA","family":"PEREIRA","sequence":"first","affiliation":[]},{"given":"ANA CAROLINA","family":"REYES","sequence":"additional","affiliation":[{"name":"Faculty of Education and Sport, University of Cape Verde, Mindelo, CAPE VERDE"}]},{"given":"RAQUEL","family":"CHAVES","sequence":"additional","affiliation":[{"name":"Department of Physical Education, Federal University of Technology\u2013Paran\u00e1, Curitiba, Paran\u00e1, BRAZIL"}]},{"given":"CARLA","family":"SANTOS","sequence":"additional","affiliation":[{"name":"CIFI2D, Faculty of Sport, University of Porto, Porto, PORTUGAL"}]},{"given":"OLGA","family":"VASCONCELOS","sequence":"additional","affiliation":[{"name":"CIFI2D, Faculty of Sport, University of Porto, Porto, PORTUGAL"}]},{"given":"GO","family":"TANI","sequence":"additional","affiliation":[{"name":"School of Physical Education and Sports, University of S\u00e3o Paulo, S\u00e3o Paulo, BRAZIL"}]},{"given":"PETER T.","family":"KATZMARZYK","sequence":"additional","affiliation":[{"name":"Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA"}]},{"given":"ADAM","family":"BAXTER-JONES","sequence":"additional","affiliation":[{"name":"College of Kinesiology, University of Saskatchewan, Saskatoon, CANADA"}]},{"given":"JOS\u00c9","family":"MAIA","sequence":"additional","affiliation":[{"name":"CIFI2D, Faculty of Sport, University of Porto, Porto, 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