Obesity Nutritional, Metabolic, Endocrine Obesity
Conditions
Interventions
Intervention: Contingent Group -
The experimental (contingent) group is designed to increase child physical activity levels and decrease time spent in targeted sedentary behaviors by making access to
Sponsors
Children's Hospital of Eastern Ontario (Canada)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. 8 - 12 year old children, either sex, who are overweight or obese defined as a Body Mass Index (BMI) above the 85th BMI percentile for age and sex (CDC, 2002) 2. Engaging in 15 hours of targeted sedentary behaviour per week, including TV/VCR/DVD use and video game playing 3. Engaging in less than 30 minutes of moderate to vigorous physical activity 4. No conditions that would limit physical activity 5. Agreement that the child or parent would not participate in any other exercise or weight control program during the course of the study 6. No regular participation in swimming or strength training because these activities cannot be measured properly by accelerometry 7. Willingness of the parents to enforce or maintain the contingencies or lack of as reflected by their assigned study group 8. Parent providing signed informed consent, and child providing signed informed assent
Exclusion criteria
Exclusion criteria: Children with developmental disabilities, who are often obese, will be excluded from participating in this initial trial in order to reduce the heterogeneity of the sample.
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| 1. Time in sedentary behaviour 2. Aerobic fitness (peak maximal oxygen consumption) 3. Body Mass Index (BMI) 4. Percent body fat (bioelectrical impedance and skinfold measurement) 5. Food intake and macronutrient composition 6. Motivation to be physically active (self-report) | — |
Primary
| Measure | Time frame |
|---|---|
| Physical activity, measured by pedometer counts. | — |
Countries
Canada
Outcome results
None listed