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Natalie Colabianchi, Jamie L. Griffin, Kerry L. McIver, Marsha Dowda and Russell R. Pate

Background:

Numerous studies have focused on the role of environments in promoting physical activity, but few studies have examined the specific locations where children are active and whether being active in these locations is associated with physical activity levels over time.

Methods:

Self-reported locations of where physical activity occurred and physical activity measured via accelerometry were obtained for a cohort of 520 children in 5th and 6th grades. Latent class analysis was used to generate classes of children defined by the variety of locations where they were active (ie, home, school grounds, gyms, recreational centers, parks or playgrounds, neighborhood, and church). Latent transition analyses were used to characterize how these latent classes change over time and to determine whether the latent transitions were associated with changes in physical activity levels.

Results:

Two latent classes were identified at baseline with the majority of children in the class labeled as ‘limited variety.’ Most children maintained their latent status over time. Physical activity levels declined for all groups, but significantly less so for children who maintained their membership in the ‘greater variety’ latent status.

Conclusions:

Supporting and encouraging physical activity in a variety of locations may improve physical activity levels in children.

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Rod K. Dishman and Claudio Nigg

Background:

Measuring the way people vary across time in meeting recommended levels of physical activity is a prerequisite to quantifying exposure in outcome studies or identifying determinants of sufficient physical activity. The study determined whether distinct patterns of change in sufficient physical activity could be identified in a population.

Methods:

A cohort (N = 497) from a random, multiethnic sample of adults living in Hawaii was assessed every 6 months for 2 years beginning spring 2004. Latent transition analysis classified people as sufficiently or insufficiently active each time.

Results:

In the total cohort, odds that people would move from insufficient to sufficient activity (45% to 59%) at each 6-month transition were higher than odds they would move from sufficient to insufficient activity (8% to 13%). However, those odds, as well as types and amounts of physical activity, differed widely among and within 3 of 4 transition classes that represented 21% of the cohort.

Conclusions:

Point-prevalence of sufficient physical activity in the total cohort was similar to contemporary U.S. estimates. However, physical activity varied between and within subgroups of the cohort. Further research is needed using self-report and objective measures to determine patterns of change in sufficient physical activity in other representative cohorts.

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Valérian Cece, Noémie Lienhart, Virginie Nicaise, Emma Guillet-Descas and Guillaume Martinent

motivation among young athletes in intensive training settings. I. Using methodological advances to explore temporal structure of YBRSQ scores . Manuscript submitted for publication Collins , L.M. , & Lanza , S.T. ( 2010 ). Latent class and latent transition analysis with applications in the social

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Marsha Dowda, Ruth P. Saunders, Natalie Colabianchi, Rod K. Dishman, Kerry L. McIver and Russell R. Pate

. 23. Colabianchi N , Griffin JL , McIver KL , Dowda M , Pate RR . Where are children active and does it matter for physical activity? A latent transition analysis . J Phys Act Health . 2016 ; 13 : 1294 – 1300 . doi:10.1123/jpah.2015-0607 10.1123/jpah.2015-0607 27633617 24. Tappe KA

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J.D. DeFreese and Alan L. Smith

importance of positive and negative social exchanges: Examining specific domains and appraisals . The Journals of Gerontology, Series B: Psychological Sciences & Social Sciences, 60B ( 6 ), P304 – P312 . doi: 10.1093/geronb/60.6.P304 Nylund , K.L. ( 2007 ). Latent transition analysis: Modeling

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Barbara E. Bechter, James A. Dimmock, Joshua L. Howard, Peter R. Whipp and Ben Jackson

regarding the extent to which, for example, profile membership was truly determined by need satisfaction perceptions. In the future, it would be valuable to use related person-centered methods—such as latent transition analysis (see, e.g.,  Kam et al., 2016 )—in conjunction with intervention efforts to

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Collin A. Webster, Diana Mindrila, Chanta Moore, Gregory Stewart, Karie Orendorff and Sally Taunton

Internet shop- ping: The role of consumer innovativeness . Industrial Management & Data Systems, 100 ( 7 ), 294 – 300 . doi:10.1108/02635570010304806 10.1108/02635570010304806 Collins , L.M. , & Lanza , S.T. , ( 2010 ). Latent class and latent transition analysis for the social, behavioral, and

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Ernest Boakye-Dankwa, Anthony Barnett, Nancy A. Pachana, Gavin Turrell and Ester Cerin

: A critical review . Maturitas, 64 , 14 – 19 . PubMed ID: 19695800 doi:10.1016/j.maturitas.2009.07.011 10.1016/j.maturitas.2009.07.011 Collins , L.M. , & Lanza , S.T. ( 2010 ). Latent class and latent transition analysis: With applications in the social, behavioral, and health sciences