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Physical Activity, Sedentary Behavior, and Adiposity in English Children

Lookup NU author(s): Dr Laura Basterfield, Professor Mark Pearce, Professor Ashley Adamson, Parimala Saminathan, Dr Kathryn Parkinson, Dr Margaret Wright, Jessica Reilly

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Abstract

Background: The importance of variation in total volume of physical activity or moderate-to vigorous-intensity physical activity (MVPA) to development of body fatness in childhood is unclear, and it is unclear if physical activity has a greater influence on adiposity in boys than girls. Purpose: To assess relationships between 2-year changes in objectively measured physical activity, sedentary behavior, and adiposity in English children. Methods: Prospective cohort study, set in Northeast England, of a socioeconomically representative sample of 403 children. Measures were change in accelerometer-determined physical activity and sedentary behavior from age 7 to 9 years (data collected 2006/2007 and 2008/2009; analyzed in 2010) and concurrent change in adiposity (fat mass index derived from bioelectric impedance) and change in BMI Z-score. Results: Decline in MVPA was associated with a greater increase in fat mass index in boys but not girls. Declining MVPA was associated with increased BMI Z-score in boys but not girls. Increased sedentary behavior was not associated with increased BMI Z-score in either gender. Conclusions: Avoiding mid-late childhood reductions in MVPA may reduce excessive fat gain, although such strategies may have greater impact on boys than girls. (Am J Prev Med 2012;42(5):445-451) (C) 2012 American Journal of Preventive Medicine


Publication metadata

Author(s): Basterfield L, Pearce MS, Adamson AJ, Frary JK, Parkinson KN, Wright CM, Reilly JJ, Gateshead Millennium Study Core Team

Publication type: Article

Publication status: Published

Journal: American Journal of Preventive Medicine

Year: 2012

Volume: 42

Issue: 5

Pages: 445-451

Print publication date: 16/04/2012

ISSN (print): 0749-3797

ISSN (electronic): 1873-2607

Publisher: Elsevier Inc.

URL: http://dx.doi.org/10.1016/j.amepre.2012.01.007

DOI: 10.1016/j.amepre.2012.01.007


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