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Mid-aged adults' sitting time in three contexts.
Nicola W Burton1, Michele Haynes, Jannique G Z van Uffelen
1School of Human Movement Studies, University of Queensland, St. Lucia, Brisbane, Australia. nburton@hms.uq.edu.au
American Journal of Preventive Medicine
|March 20, 2012
Summary
Sedentary behavior in mid-aged adults varies by social, health, and demographic factors. Sitting time differs between weekdays and weekends across various activities like TV watching and computer use.
Area of Science:
- Public Health
- Epidemiology
- Behavioral Science
Background:
- Understanding sedentary behavior is crucial for developing effective public health interventions.
- Identifying specific contexts and associated factors of prolonged sitting is needed.
Purpose of the Study:
- To investigate sociodemographic and health factors linked to sitting time in middle-aged adults.
- To analyze variations in sitting time across different contexts (TV, leisure, computer use) and between weekdays and weekend days.
Main Methods:
- A large-scale mail survey of 17,000 adults (aged 40-65) with 7,719 analyzed.
- Data collected on sitting time for TV, general leisure, and home computer use on weekdays and weekend days.
- Multivariate linear mixed models used to examine associations and interaction effects.
Main Results:
- Single individuals, those living alone, and those with activity-limiting health conditions reported longer sitting times.
- Specific factors like gender, smoking, education, employment, health status, and BMI were associated with sitting time in different contexts.
- Sitting times were generally longer on weekend days, with variations across sociodemographic groups.
Conclusions:
- Sociodemographic and health factors influencing sitting time are context-specific.
- Significant differences in sitting time exist between weekdays and weekend days, varying by individual characteristics.
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