The association between the activity profile and cardiovascular risk.

Maddison, Ralph, Jiang, Yannan, Foley, Louise, Scragg, Robert, Direito, Artur and Olds, Timothy 2016, The association between the activity profile and cardiovascular risk., Journal of science and medicine in sport, vol. 19, no. 8, pp. 605-610, doi: 10.1016/j.jsams.2015.08.001.

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Title The association between the activity profile and cardiovascular risk.
Author(s) Maddison, RalphORCID iD for Maddison, Ralph
Jiang, Yannan
Foley, Louise
Scragg, Robert
Direito, Artur
Olds, Timothy
Journal name Journal of science and medicine in sport
Volume number 19
Issue number 8
Start page 605
End page 610
Total pages 6
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-08
ISSN 1878-1861
Keyword(s) Accelerometer
Cardiovascular diseases
Motor activity
Physical activity
Sedentary lifestyle
Summary OBJECTIVES: This study sought to better understand the interrelationships between physical activity and sedentary behaviour and the relationship to risk of cardiovascular disease (CVDR) in adults aged 30-75 years. DESIGN: Cross-sectional. METHODS: Data from two-year waves (2003-2004 and 2005-2006) of the National Health and Nutritional Examination survey were analysed in 2014. Accelerometer-derived time and proportion of time spent sedentary and on moderate-to-vigorous physical activity (MVPA) were calculated to generate four activity profiles based on cut-points to define low and high levels for the respective behaviours. Using health outcome data, CVDR was calculated for each person. Weighted multiple linear regression models were used to evaluate the predicted effects of sedentary and physical activity behaviours on the CVDR score, adjusting for participants' sex, age group, race, annual household income, and accelerometer wear time. RESULTS: The lowest CVDR was observed among Busy Exercisers (high MVPA and low sedentary; 8.5%), whereas Couch Potatoes (low MVPA and high sedentary) had the highest (18.6%). Compared with the reference group (Busy Exercisers), the activity profile associated with the highest CVDR was Couch Potatoes (adjusted mean difference 3.6, SE 0.38, p<0.0001). A smoothed three-dimensional response surface "risk landscape" was developed to better visualise the conjoint associations of MVPA and sedentary behaviour on CVDR for each activity profile. The association between MVPA was greater than that of sedentary behaviour; however, for people with low MVPA, shifts in sedentary behaviour may have the greatest impact on CVDR. CONCLUSIONS: Activity profiles that consider the interrelationships between physical activity and sedentary behaviour differ in terms of CVDR. Future interventions may need to be tailored to specific profiles and be dynamic enough to reflect change in the profile over time.
Language eng
DOI 10.1016/j.jsams.2015.08.001
Field of Research 1106 Human Movement And Sports Science
1117 Public Health And Health Services
Socio Economic Objective 920499 Public Health (excl. Specific Population Health) not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
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Document type: Journal Article
Collections: Faculty of Health
Institute for Physical Activity and Nutrition
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