|Title||Metabolically healthy obesity: what is the role of sedentary behaviour?|
|Publication Type||Journal Article|
|Year of Publication||2014|
|Authors||Bell, JA, Kivimäki, M, Batty, GD, Hamer, M|
|Date Published||2014 May|
|Keywords||Activities of Daily Living, Aged, Aging, Body Mass Index, Case-Control Studies, Cohort Studies, Cross-Sectional Studies, Depression, England, Female, Health Status, Humans, Linear Models, Longitudinal Studies, Male, Obesity, Prospective Studies, Sedentary behavior, Sex Factors, Socioeconomic Factors, Surveys and Questionnaires, Television|
OBJECTIVE: The role of sedentary behaviour in metabolically healthy obesity is unknown. We examined cross-sectional differences in television viewing time across metabolic and obesity phenotypes, hypothesizing that healthy obese individuals spend less time viewing television than their unhealthy counterparts.
METHODS: A nationally representative sample of 4931 older adults in England (mean age 65.1; SD=8.9 years) was drawn from the 2008/9 wave of the English Longitudinal Study of Ageing. Average weekly television viewing time was derived from two questions about weekday and weekend viewing. Obesity was defined as body mass index ≥ 30 kg/m(2), and metabolically healthy as having <2 metabolic abnormalities (low HDL-cholesterol, high triglycerides, high blood pressure, hyperglycaemia, high inflammation).
RESULTS: After adjusting for covariates including chronic illness, functional limitations and physical activity, mean weekly viewing times were 4.7 (95% confidence interval 2.9, 6.5), 5.8 (2.5, 9.0) and 7.8 (5.7, 9.8) h higher in unhealthy non-obese, healthy obese, and unhealthy obese groups respectively, compared to the healthy non-obese group (p for heterogeneity <0.001).
CONCLUSIONS: A common type of leisure-time sedentary behaviour varies across metabolic and obesity phenotypes. However, healthy obesity is not explained through differences in leisure-time sedentary behaviour.
|Alternate Journal||Prev Med|
|PubMed Central ID||PMC3995089|
|Grant List||RE/10/005/28296 / / British Heart Foundation / United Kingdom |
R01 HL036310 / HL / NHLBI NIH HHS / United States
K013351 / / Medical Research Council / United Kingdom
R01 AG034454 / AG / NIA NIH HHS / United States
HL36310 / HL / NHLBI NIH HHS / United States
R01 AG017644 / AG / NIA NIH HHS / United States
MR/K013351/1 / / Medical Research Council / United Kingdom
AG034454 / AG / NIA NIH HHS / United States