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John Scriven, Josephine Cabot, Demri Mitchell and David Kennedy

young people ages 10-15 years . States of Jersey ; 2015 : 49 . 2. Katzmarzyk P , Barreira T , Broyles S , et al . Physical activity, sedentary time, and obesity in an international sample of children. Med Sci Sports Exerc . 2015 ; 47 ( 10 ): 2062 – 2069 . doi:10.1249/MSS.0000000000000649

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Jorge Mota, Rute Santos, Manuel João Coelho-e-Silva, Armando M. Raimundo and Luís B. Sardinha

activity and sedentary time are necessary given that a substantial data provides from self-reported surveys. Future studies on active play and leisure activities among Portuguese school-aged children would also be key to inform future Portuguese Kids Cards. Table 1 Grades and Rationales for Portuguese

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Juliessa M. Pavon, Richard J. Sloane, Carl F. Pieper, Cathleen S. Colón-Emeric, David Gallagher, Harvey J. Cohen, Katherine S. Hall, Miriam C. Morey, Midori McCarty, Thomas L. Ortel and Susan N. Hastings

pharmacologic VTE prophylaxis, using the nonparametric Spearman correlation. Differences in activity time, sedentary time, and steps according to pharmacological VTE prophylaxis use were examined employing nonparametric analysis (Wilcoxon rank-sum tests) to deal with observed deviations from normality in these

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studies assessed PA using objective measures. Interventions replaced sedentary time with either light PA or MVPA dependant on design characteristics (mode, duration and intensity). Only one study factored individual PA outcomes into analyses. Classroom behaviour improved after longer moderate

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Kazuhiro Harada, Kouhei Masumoto and Narihiko Kondo

in older adults: a systematic review and data analysis . Eur Rev Aging Phys Act . 2014 ; 11 ( 1 ): 35 – 49 . doi:10.1007/s11556-013-0132-x 10.1007/s11556-013-0132-x 24765212 26. Healy GN , Wijndaele K , Dunstan DW , et al . Objectively measured sedentary time, physical activity, and

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Patty Freedson

maximize sample size. You state that this method can only be used when counts per minute is the variable of interest. Do you think this method of reducing invalid monitoring days will work for variables that require further data processing (e.g., minutes of moderate-to-vigorous activity, sedentary time

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Philippa M. Dall, Dawn A. Skelton, Manon L. Dontje, Elaine H. Coulter, Sally Stewart, Simon R. Cox, Richard J. Shaw, Iva Čukić, Claire F. Fitzsimons, Carolyn A. Greig, Malcolm H. Granat, Geoff Der, Ian J. Deary, Sebastien F.M. Chastin and On behalf of the Seniors USP Team

, P.I. , Faulkner , G.E. , Bajaj , R.R. , Silver , M.A. , Mitchell , M.S. , … Alter , D.A. ( 2015 ). Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis . Annals of Internal Medicine, 162

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Salomé Aubert, Joel D. Barnes, Nicolas Aguilar-Farias, Greet Cardon, Chen-Kang Chang, Christine Delisle Nyström, Yolanda Demetriou, Lowri Edwards, Arunas Emeljanovas, Aleš Gába, Wendy Y. Huang, Izzeldin A.E. Ibrahim, Jaak Jürimäe, Peter T. Katzmarzyk, Agata Korcz, Yeon Soo Kim, Eun-Young Lee, Marie Löf, Tom Loney, Shawnda A. Morrison, Jorge Mota, John J. Reilly, Blanca Roman-Viñas, Natasha Schranz, John Scriven, Jan Seghers, Thomas Skovgaard, Melody Smith, Martyn Standage, Gregor Starc, Gareth Stratton, Tim Takken, Tuija Tammelin, Chiaki Tanaka, David Thivel, Richard Tyler, Alun Williams, Stephen H.S. Wong, Paweł Zembura and Mark S. Tremblay

of physical activity. 82 In another study describing objectively measured physical activity and sedentary time patterns in children and youth in 10 countries (9 very high HDI countries and Brazil), only 9% of boys and 2% of girls accumulated ≥60 minutes of MVPA on all measured days. 35 The present

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Marie H. Murphy, Angela Carlin, Catherine Woods, Alan Nevill, Ciaran MacDonncha, Kyle Ferguson and Niamh Murphy

engaged in sedentary behaviors on weekdays (71.2%) compared with weekends (55.8%). Television viewing, computer use, and smartphone use were the largest contributors to overall sedentary time. Male students reported more noneducation-related sedentary screen time than females on both weekdays (4.3 vs 3

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Angela Maria Hoyos-Quintero and Herney Andrés García-Perdomo

U , Luan J , Sherar LB , et al . Moderate to vigorous physical activity and sedentary time and cardiometabolic risk factors in children and adolescents . JAMA . 2012 ; 307 ( 7 ): 704 – 712 . PubMed ID: 22337681 doi:10.1001/jama.2012.156 10.1001/jama.2012.156 22337681 30. Farley TA