Preventing Overweight in USAF Personnel: Minimal Contact Program

Study Overview
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Brief Summary
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The prevalence of overweight in the United States Air Force (USAF) is about 22%. The objective of this study is to compare the effectiveness of a minimal contact behavioral therapy plus usual care group(MCBT+UC) using a controlled experimental comparison of usual care(UC). Subjects are USAF personnel who are 5lbs below their Maximum Allowable Weight (MAW) and heavier. The primary hypothesis is that: MCBT+UC will have significant weight loss as compared to UC.

Detailed Description
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The objective of this study is to compare the relative effectiveness of two approaches to weight management, using a controlled comparison experiment. The two approaches are: Minimal Contact Behavior Therapy Plus Usual Care (MCBT+UC) which includes an orientation meeting, provision of a self-help book, use of an interactive weight management web site for 6 months, and 2 brief motivational interviewing telephone follow-ups, plus usual care;and Usual Care (UC) which includes and orientation meeting and usual care (consisting of required USAF annual physical and fitness exam, participation in any mandatory weight loss or fitness programs, and the requirement to stay below a Maximum Allowable Weight [MAW], with penalties or separation as potential contingencies for failure to remain below MAW). The primary outcome is weight loss.Additional outcomes include body mass index, percent body fat, and waist circumference.

Official Title
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Preventing Overweight in USAF Personnel: Minimal Contact Program

Conditions
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Overweight, Obesity

Intervention / Treatment
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* Behavioral: Lifestyle Intervention
* Other: control group


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Within 5 pounds below or equal to their MAW or above MAW according to USAF Weight and height tables Access to personal computer with Internet access Plan to remain in the local area for one year Male or female between the ages 18-55 years Exclusion Criteria: Pregnant, planning to become pregnant or becomes pregnant Weight loss of more than 10 pounds in the past 3 months No prescription or nonprescription weight-loss medication for at least 6 months prior to screening On any medical profile. Specific exclusion includes history of myocardial infarction, stroke, or cancer in the past 5 years, diabetes, angina, and orthopedic or joint problems that would prohibit exercise.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 55 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: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Lifestyle intervention<br>Behavioral lifestyle intervention versus control group. The Behavioral intervention consists of behavioral lessons delivered over the internet. | Behavioral: Lifestyle Intervention<br>* lifestyle intervention .<br>|
| Experimental: control<br>The intervention for the waiting list control group was usual care. | Other: control group<br>* waiting list control group<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Body Weight |  | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Body Mass Index |  | 1 year | 
| Percent Body Fat |  | 1year | 
| Waist Circumference |  | 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Treatment of overweight, Prevention of overweight, Prevention of obesity, Treatment of obesity