Increased cardiometabolic risk is associated with increased TV viewing time

Wijndaele, Katrien, Healy, Genevieve N., Dunstan, David W., Barnett, Adrian G., Salmon, Jo, Shaw, Jonathon E., Zimmet, Paul Z. and Owen, Neville 2010, Increased cardiometabolic risk is associated with increased TV viewing time, Medicine and science in sports and exercise, vol. 42, no. 8, pp. 1511-1518, doi: 10.1249/MSS.0b013e3181d322ac.

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Title Increased cardiometabolic risk is associated with increased TV viewing time
Author(s) Wijndaele, Katrien
Healy, Genevieve N.
Dunstan, David W.
Barnett, Adrian G.
Salmon, JoORCID iD for Salmon, Jo
Shaw, Jonathon E.
Zimmet, Paul Z.
Owen, Neville
Journal name Medicine and science in sports and exercise
Volume number 42
Issue number 8
Start page 1511
End page 1518
Total pages 8
Publisher Lippincott Williams & Wilkins
Place of publication Philadelphia, Pa.
Publication date 2010-08
ISSN 0195-9131
Keyword(s) television
Metabolic syndrome
Waist circumference
Blood pressure
Summary Purpose: Television viewing time, independent of leisure time physical activity, has cross-sectional relationships with the metabolic syndrome and its individual components. We examined whether baseline and 5-yr changes in self-reported television viewing time are associated with changes in continuous biomarkers of cardiometabolic risk (waist circumference, triglycerides, HDL-cholesterol, systolic and diastolic blood pressure, fasting plasma glucose, and a clustered cardiometabolic risk score) in Australian adults.

Methods: The Australian Diabetes, Obesity and Lifestyle Study (AusDiab) is a prospective, population-based cohort study with biological, behavioral, and demographic measures collected in 1999-2000 and 2004-2005. Noninstitutionalized adults aged >=25 yr were measured at baseline (11,247; 55% of those completing an initial household interview); 6400 took part in the 5-yr follow-up biomedical examination, and 3846 met the inclusion criteria for this analysis. Multiple linear regression analysis was used, and unstandardized B coefficients (95% confidence intervals (CI)) are provided.

Results: Baseline television viewing time (10 h·wk-1 unit) was not significantly associated with change in any of the biomarkers of cardiometabolic risk. Increases in television viewing time over 5 yr (10 h·wk-1 unit) were associated with increases in waist circumference (men: 0.43 cm, 95% CI = 0.08-0.78 cm, P = 0.02; women: 0.68 cm, 95% CI = 0.30-1.05, P < 0.001), diastolic blood pressure (women: 0.47 mm Hg, 95% CI = 0.02-0.92 mm Hg, P = 0.04), and the clustered cardiometabolic risk score (women: 0.03, 95% CI = 0.01-0.05, P = 0.007). These associations were independent of baseline television viewing time and baseline and change in physical activity and other potential confounders.

Conclusions: These findings indicate that an increase in television viewing time is associated with adverse cardiometabolic biomarker changes. Further prospective studies using objective measures of several sedentary behaviors are required to confirm causality of the associations found.
Language eng
DOI 10.1249/MSS.0b013e3181d322ac
Field of Research 119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
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Document type: Journal Article
Collections: Faculty of Health
School of Exercise and Nutrition Sciences
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