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Background: Obesity is a risk factor for non-communicable diseases. Sustainable obesity resolution should involve community participation.
Objectives: To develop and study the effect of the competency development model for health behavior modification regarding consumption and exercise behaviors in order to resolve overweight and obesity in the community.
Methods: The study design was the Community-Based Participation Research (CBPR). The samples included community leaders and community members who were at risk of non-communicable chronic diseases. Research tools were composed of the consumption and exercise behaviors questionnaire, the health behavior modification competencies questionnaire, and the research competencies questionnaire. The content validities of the questionnaires were .83-1.00, and the validities were .76-.96. Data were analyzed using descriptive statistics, paired t-test, and The Wilcoxon signed-ranks test.
Results: The competency development model for health behavior modification should involve community networks in all behavior modification processes. The behavioral modification should be implemented at the individual, interpersonal, and community levels; and After implementing the competency development model: the at-risk samples were statistically significantly lower in the BMI mean and waistline mean (t(29)= 8.00,p<.001 and t(29)= 6.27, p<.001, respectively) and the mean score of exercise behavior was statistically significantly increasing (z=-3.09, p<.001). The mean score of consumption behavior was not statistically different, and the community leaders were statistically significantly lower in the BMI and waistline means (z=-2.59, p<.01 and z=-2.04, p<.04, respectively) and the mean score of exercise behavior was also statistically significantly increasing (z=-2.03, p<.04) However, the mean scores of consumption behavior, behavior modification competency, and research competency were not statistically different.
Conclusions: The competency development model for health behavior modification can reduce BMI and waistline of people in the community.
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