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Evelin Lätt, Jarek Mäestu and Jaak Jürimäe

adults have shown that not only the total amount of daily sedentary time may be unhealthy, but also the pattern of sedentary time accumulation might have adverse health effects. 3 – 5 Therefore, a more detailed analysis of sedentary behavior accumulation and examining associations for cardiometabolic

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Jade L. Morris, Andy Daly-Smith, Margaret A. Defeyter, Jim McKenna, Steve Zwolinsky, Scott Lloyd, Melissa Fothergill and Pamela L. Graham

effects on sedentary time, LPA, and MVPA. Covariates entered in the model were maturity offset, BMI SD scores, gender, and the appropriate preactivity category. Two subgroups were created using initial accelerometry data on MVPA levels; (1) Low Active (eg, achieved <45 min/d MVPA) and (2) High Active (eg

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Anna Pulakka, Eric J. Shiroma, Tamara B. Harris, Jaana Pentti, Jussi Vahtera and Sari Stenholm

sedentary time, but mainly from accelerometers worn on the hip during wake time only ( Evenson & Terry, 2009 ; Keadle et al., 2014 ; Masse et al., 2005 ; Peeters, van Gellecum, Ryde, Farías, & Brown, 2013 ; Winkler et al., 2012 ). In addition, some studies have assessed impact of sleep algorithms on

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Manon L. Dontje, Calum F. Leask, Juliet Harvey, Dawn A. Skelton and Sebastien F.M. Chastin

daily physical activity ( Chau et al., 2013 ; de Rezende, Rey-López, Matsudo, & do Carmo Luiz, 2014 ; Dogra & Stathokostas, 2012 ). Several national and international health guidelines explicitly recommend that older adults should reduce their sedentary time and break prolonged periods of sitting to

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Peng Zhang, Jung Eun Lee, David F. Stodden and Zan Gao

noted PA and sedentary data generally represent cross-sectional data with longitudinal tracking of individual trajectories of PA and sedentary time receiving limited attention. Lai et al 7 conducted a meta-analysis on the impact of PA interventions and reported only 4 out of 14 studies investigated the

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Ronit Aviram, Netta Harries, Anat Shkedy Rabani, Akram Amro, Ibtisam Nammourah, Muhammed Al-Jarrah, Yoav Raanan, Yeshayahu Hutzler and Simona Bar-Haim

encouraged to increase habitual physical activity (HPA) and reduce sedentary behavior ( 29 ). It is also clear that physical activity declines in typically developing (TD) individuals through adolescence with a concurrent increase in sedentary time in many populations that have been sampled ( 5 , 11 , 23

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Sofia W. Manta, Paula F. Sandreschi, Thiago S. Matias, Camila Tomicki and Tânia R.B. Benedetti

consequences for the health of older adults ( Brocklebank, Falconer, Page, Perry, & Cooper, 2015 ). When combined, PA and sedentary time (ST) can form different patterns of behavior, with a synergistic effect, thus highlighting the importance of interventions that stimulate a positive pattern to produce health

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André O. Werneck, Evelyn C.A. Silva, Maria R.O. Bueno, Lidyane Z. Vignadelli, Adewale L. Oyeyemi, Catiana L.P. Romanzini, Enio R.V. Ronque and Marcelo Romanzini

, sedentary behavior has emerged as a “new” health behavior ( 20 ). However, this behavior is best understood when objectively quantified. In addition, it is important to investigate the patterns of sedentary behavior in terms of bouts, which is characterized as a period of uninterrupted sedentary time (a

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Mynor Rodriguez-Hernandez, Jeffrey S. Martin, David D. Pascoe, Michael D. Roberts and Danielle W. Wadsworth

, and 49% greater risk of all-cause mortality. Although physical inactivity (ie, sedentary time) seems to be highly predictive of metabolic risks, Healy et al 12 recently demonstrated that replacement of sedentary time with even light physical activity markedly decreased risk of metabolic disease in an

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Liane S. Lewis, James Hernon, Allan Clark and John M. Saxton

 ± 169 143 ± 147 209 ± 197 .39 Steps˙wk –1 39939 ± 12700 43711 ± 5659 3872 ± 14432 .57 Sedentary time (min˙wk –1 ) 3919 ± 1380 4051 ± 805 3708 ± 757 .21 Abbreviations: ACC = accumulated; FL = free-living; IPAQ = International Physical Activity Questionnaire; OH = Occupational and Household related; TM