title: Places where children are active: A longitudinal examination of children's physical activity.
abstract: Using two-year longitudinal data, we examined locations where children spent time and were active, whether location patterns were stable, and relationships between spending time in their home neighborhood and moderate to vigorous physical activity (MVPA). At two time points (2007-2009 and 2009-2011), children living in the metropolitans areas of either San Diego, CA or Seattle, WA wore an accelerometer, and parents recorded their child's locations for seven days. Across two years, global average proportion of time spent in each location was stable, but total time and proportion of time in each location spent in MVPA decreased significantly across all locations. Children spent the largest proportion of time in MVPA in their home neighborhood at both time points, although they spent little time in their home neighborhood.
authors.affiliation: Oregon Health & Science University School of Nursing, 3455 SW US Veterans Hospital Rd. Portland, OR 97239, USA; University of Washington Family & Child Nursing, 1959 NE Pacific St Seattle, WA 98195, USA. Electronic address: perryci@ohsu.edu.
authors.forename: Cynthia K
authors.initials: CK
authors.lastname: Perry
authors.affiliation: University of Washington Department of Sociology, 211 Savery Hall, Box 353340, Seattle, WA 98195-3340, United States; University of Texas at Austin, 305 E. 23rd Street, Stop G1800, Austin, TX 78712-1699, United States.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Ackert
authors.affiliation: University of California, San Diego, United States; Department of Family Medicine & Public Health, 3900 Fifth Avenue, Suite 310, San Diego, CA 92103, United States.
authors.forename: James F
authors.initials: JF
authors.lastname: Sallis
authors.affiliation: University of Pennsylvania Perelman School of Medicine and School of Nursing, 423 Guardian Drive, Philadelphia, PA 19104, United States.
authors.forename: Karen
authors.initials: K
authors.lastname: Glanz
authors.affiliation: University of Washington Department of Pediatrics and Seattle Children's Hospital Research Institute, P.O. Box 5371, Seattle, WA 98145, USA.
authors.forename: Brian E
authors.initials: BE
authors.lastname: Saelens
mesh_terms: D061725:Accelerometry / Q000379:methods; D002140:California; D002648:Child; D015444:Exercise / Q000502:physiology*; D005260:Female; D015438:Health Behavior / Q000208:ethnology; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D010290:Parents; D000068316:Parks, Recreational / Q000706:statistics & numerical data*; D012111:Residence Characteristics / Q000706:statistics & numerical data*; D016138:Walking; D014861:Washington
keywords: Built environment; Children; Correlates; Exercise; Neighborhood; Physical activity; Prospective