Multi-media Obesity Prevention Program for Adolescents

Study Overview
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Brief Summary
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The objective of this project was to evaluate a population-based, computerized tailored intervention that addresses recommended guidelines for three target behaviors related to obesity risk: physical activity (at least 60 minutes on at least 5 days per week), fruit and vegetable consumption (at least 5 servings of fruits and vegetables each day), and limited TV viewing (2 hours or less of TV each day).

Official Title
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Multi-media Obesity Prevention Program for Adolescents

Conditions
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Physical Activity, Nutrition, Obesity Prevention

Intervention / Treatment
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* Behavioral: Health in Motion


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: English speaking In the 9th, 10th, or 11th grade at baseline Exclusion Criteria: -

Ages Eligible for Study
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Minimum Age: 13 Years
Maximum Age: 19 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Computerized Tailored Intervention<br>Students interacted with the 30-minute program through a series of Transtheoretical Model (TTM) based assessments and tailored feedback messages. A full TTM intervention was delivered for physical activity, in which each of the appropriate constructs of the TTM based on stage of change was addressed. Optimally tailored interventions were delivered for fruit and vegetable consumption and limited TV viewing. These interventions offered feedback on the most important TTM constructs based on stage of change for each behavior. Multimedia components, including audio, video, and animations helped to capture students' interest. | Behavioral: Health in Motion<br>* Students interacted with the 30-minute program through a series of Transtheoretical Model (TTM) based assessments and tailored feedback messages. A full TTM intervention was delivered for physical activity, in which each of the appropriate constructs of the TTM based on stage of change was addressed. Optimally tailored interventions were delivered for fruit and vegetable consumption and limited TV viewing. These interventions offered feedback on the most important TTM constructs based on stage of change for each behavior. Multimedia components, including audio, video, and animations helped to capture students' interest.<br>|
| No Intervention: Control<br>Computerized assessments of Transtheoretical Model constructs at 0, 2, 6, and 12 months | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The number of days per week for which students got at least 60 minutes of physical activity |  | 2, 6, and 12 months | 
| The number of servings of fruits and vegetables consumed each day |  | 2, 6, and 12 months | 
| The number of hours of TV watch each day, including time spent watching TV, videotapes, and DVD's |  | 2, 6, and 12 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Stage of change for readiness to do at least 60 minutes of physical activity on at least 5 days of the week |  | 2, 6, and 12 months | 
| Stage of change for readiness to eat at least five servings of fruits and vegetables each day. |  | 2, 6, and 12 months | 
| Stage of change for readiness to watch two hours or less of TV each day. |  | 2, 6, and 12 months |