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Physical activity, television viewing time and 12 year changes in waist circumference

Shibata, Ai, Oka, Koichiro, Sugiyama, Takemi, Salmon, Jo, Dunstan, David W. and Owen, Neville 2016, Physical activity, television viewing time and 12 year changes in waist circumference, Medicine and science in sports and exercise, vol. 48, no. 4, pp. 633-640, doi: 10.1249/MSS.0000000000000803.

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Title Physical activity, television viewing time and 12 year changes in waist circumference
Author(s) Shibata, Ai
Oka, Koichiro
Sugiyama, Takemi
Salmon, JoORCID iD for Salmon, Jo orcid.org/0000-0002-4734-6354
Dunstan, David W.
Owen, Neville
Journal name Medicine and science in sports and exercise
Volume number 48
Issue number 4
Start page 633
End page 640
Total pages 8
Publisher American College of Sports Medicine (ACSM)
Place of publication Baltimore, Md.
Publication date 2016-04
ISSN 1530-0315
Keyword(s) exercise
sedentary lifestyle
obesity
central adiposity
prospective studies
Summary PURPOSE: Both moderate-to-vigorous physical activity (MVPA) and sedentary behavior can be associated with adult adiposity. Much of the relevant evidence is from cross-sectional studies or from prospective studies with relevant exposure measures at a single time point prior to weight gain or incident obesity. This study examined whether changes in MVPA and television (TV) viewing time are associated with subsequent changes in waist circumference, using data from three separate observation points in a large population-based prospective study of Australian adults.

METHODS: Data were obtained from the Australian Diabetes, Obesity and Lifestyle study collected in 1999-2000 (baseline), 2004-05 (Wave 2), and 2011-12 (Wave 3). The study sample consisted of adults aged 25 to 74 years at baseline who also attended site measurement at three time points (n=3261). Multilevel linear regression analysis examined associations of initial five-year changes in MVPA and TV viewing time (from baseline to Wave 2) with 12-year change in waist circumference (from baseline to Wave 3), adjusting for well-known confounders.

RESULTS: As categorical predictors, increases in MVPA significantly attenuated increases in waist circumference (p for trend< 0.001). TV viewing time change was not significantly associated with changes in waist circumference (p for trend =0.06). Combined categories of MVPA and TV viewing time changes were predictive of waist circumference increases; compared to those who increased MVPA and reduced TV viewing time, those who reduced MVPA and increased TV viewing time had a 2cm greater increase in waist circumference (p=0.001).

CONCLUSION: Decreasing MVPA emerged as a significant predictor of increases in waist circumference. Increasing TV viewing time was also influential, but its impact was much weaker than MVPA.
Language eng
DOI 10.1249/MSS.0000000000000803
Field of Research 110699 Human Movement and Sports Science not elsewhere classified
Socio Economic Objective 920401 Behaviour and Health
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2015, American College of Sports Medicine (ACSM)
Free to Read? Yes
Use Rights Creative Commons Attribution noncommercial no derivatives licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30079397

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.