Evaluation of Behavioral Theory and Integrated Internet/telephone Technologies to Support Military Obesity and Weight Management Programs
University of Maryland College Park United States
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The primary objective of the study was to evaluate the interaction of two different weight management interventions and two methods of follow up counseling on weight loss in overweight active duty military service members after 3 months. Participants n172 were randomized to one of four groups using a 2 x 2 factorial treatment structure 1 Standard Class In-person follow up counseling every 3 months, 2Class weekly Internet weight management follow up, 3 Tailored behaviorally based counseling session In-person follow up every 3 months, or 4 Tailored Internet. The secondary objective was to determine the relationship between stages of change for five different weight control behaviors dietary fat, fruits and vegetables, portion control, beverage choices, exercise and weight loss after 3 months. Measurements were taken at 0 baseline and 3 months and included body weight, body composition, waist circumference, blood pressure, fasting blood glucose, lipid levels, stages of change and dietary assessment. Analysis of covariance with repeated measures was used to compare outcome differences among groups over time. There was no significant difference in weight loss or other outcomes among treatment groups at 3 months. However, the Tailored Internet -1.33 0.66 kg, p0.05 and Class In-person -1.4 0.63 kg, p0.05 groups lost significant weight compared to baseline after 3 months. The Tailored Internet group also lost significant total fat, trunk fat and percent body fat and had reduced waist circumference after 3months while the Class In-person group significantly lost lean body mass but not fat when compared to baseline. Furthermore, being in the action stage for each weight control behavior did not result in significantly more weight loss than being in the preaction stages.