{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,13]],"date-time":"2026-01-13T05:57:18Z","timestamp":1768283838399,"version":"3.49.0"},"reference-count":33,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"8","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:sec>\n            <jats:title>Purpose<\/jats:title>\n            <jats:p>Assessment of trends in physical activity (PA) and sedentary time (ST) is important for evaluating the effectiveness of national policies and setting goals to improve population PA. This study describes changes in measured PA and ST through motion sensors of the Portuguese population from 2008 to 2018.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>PA and ST were measured with accelerometry from individuals (\u226510 yr) participating in the 2008 (<jats:italic toggle=\"yes\">n<\/jats:italic> = 4 532) and 2018 (<jats:italic toggle=\"yes\">n<\/jats:italic> = 6 369) Portuguese PA Surveillance Systems. Changes were analyzed using generalized linear and logistic models adjusted for accelerometer wear time. A weight factor was applied to all analyses in order to achieve national representativeness of the present results.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>In 2018, 15.4%, 71.2%, and 30.6% of Portuguese youth, adults, and older adults met the PA recommendations. Compared with 2008, the percentage meeting the PA guidelines increased in youth females (4.7% vs 7.7%, <jats:italic toggle=\"yes\">P<\/jats:italic> &lt; 0.05) and adult males (72.2% vs 79.4%, <jats:italic toggle=\"yes\">P<\/jats:italic> &lt; 0.05). A decrease in ST was observed for adult males, whereas ST increased in all youth. Male youth decreased the number of breaks in ST (BST per hour), whereas a favorable increase was found for both adult and older adult males and females.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>PA has remained fairly stable between 2008 and 2018 for all groups, except for youth females and adult males. For ST, a favorable decrease was observed for adult males; however, an inverse trend was found in youth. These results are relevant for policy makers to develop health care policies aimed at promoting PA and reducing ST across all age-groups.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1249\/mss.0000000000003161","type":"journal-article","created":{"date-parts":[[2023,3,10]],"date-time":"2023-03-10T19:00:08Z","timestamp":1678474808000},"page":"1416-1422","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":8,"title":["Physical Activity and Sedentary Behavior in the Portuguese Population: What Has Changed from 2008 to 2018?"],"prefix":"10.1249","volume":"55","author":[{"given":"JO\u00c3O P.","family":"MAGALH\u00c3ES","sequence":"first","affiliation":[{"name":"Exercise and Health Laboratory, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, PORTUGAL"}]},{"given":"MEGAN","family":"HETHERINGTON-RAUTH","sequence":"additional","affiliation":[{"name":"Exercise and Health Laboratory, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, PORTUGAL"}]},{"given":"GIL B.","family":"ROSA","sequence":"additional","affiliation":[{"name":"Exercise and Health Laboratory, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, PORTUGAL"}]},{"given":"IN\u00caS R.","family":"CORREIA","sequence":"additional","affiliation":[{"name":"Exercise and Health Laboratory, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, PORTUGAL"}]},{"given":"GRA\u00c7A M.","family":"PINTO","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, Exercise and Health, Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Tr\u00e1s-os-Montes and Alto Douro, Vila Real, PORTUGAL"}]},{"given":"JOS\u00c9 P.","family":"FERREIRA","sequence":"additional","affiliation":[{"name":"Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, PORTUGAL"}]},{"given":"MANUEL J.","family":"COELHO-E-SILVA","sequence":"additional","affiliation":[{"name":"Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, PORTUGAL"}]},{"given":"ARMANDO M.","family":"RAIMUNDO","sequence":"additional","affiliation":[{"name":"Departamento Desporto e Sa\u00fade, Escola de Sa\u00fade e Desenvolvimento Humano, Comprehensive Health Research Centre, Universidade de \u00c9vora, \u00c9vora, PORTUGAL"}]},{"given":"JORGE","family":"MOTA","sequence":"additional","affiliation":[{"name":"Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal; CIAFEL\u2013Research Center in Physical Activity, Health and Leisure, University of Porto, Porto, PORTUGAL"}]},{"given":"LU\u00cdS B.","family":"SARDINHA","sequence":"additional","affiliation":[{"name":"Exercise and Health Laboratory, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, PORTUGAL"}]}],"member":"276","published-online":{"date-parts":[[2023,3,6]]},"reference":[{"issue":"24","key":"bib1-20250424","doi-asserted-by":"crossref","first-page":"1451","DOI":"10.1136\/bjsports-2020-102955","article-title":"World Health Organization 2020 guidelines on physical activity and sedentary behaviour","volume":"54","year":"2020","journal-title":"Br J Sports Med"},{"issue":"7","key":"bib3-20250424","doi-asserted-by":"crossref","first-page":"e867","DOI":"10.1016\/S2214-109X(20)30256-4","article-title":"Physical activity: moving from words to action","volume":"8","year":"2020","journal-title":"Lancet Glob Health"},{"issue":"10","key":"bib4-20250424","doi-asserted-by":"crossref","first-page":"e1046","DOI":"10.1016\/S2214-109X(18)30381-4","article-title":"Surveillance of global physical activity: progress, evidence, and future directions","volume":"6","year":"2018","journal-title":"Lancet Glob Health"},{"issue":"24","key":"bib5-20250424","doi-asserted-by":"crossref","first-page":"1468","DOI":"10.1136\/bjsports-2020-102621","article-title":"How can global physical activity surveillance adapt to evolving physical activity guidelines? 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