Effect of motivational interviewing on the weight self-efficacy lifestyle in men suffering from overweight and obesity

Introduction: The purpose of the study was to determine the efficacy of motivational interviewing on lifestyle self-efficacy in terms of weight in men.   Method: The present research is an experimental study with Pre-test, post-test and a control group that was conducted at different time on ۴۰ subjects suffering from overweight and obesity (Body Mass Index more than ۲۵) working in Isfahan Poly Akril Company in ۲۰۰۹. The subjects were selected by random sampling and were randomly classified into the experimental group (n=۲۰) and the control group (n=۲۰). The intervention consisting of five sessions of group motivational interviewing and weight controlling program was given to the experimental group. The obtained data were analyzed using statistical tests of covariance analysis and dependent t-test, via weight efficacy lifestyle questionnaire.   Results: The score of the group receiving motivational interview was significantly higher than the control group in general weight self-efficacy lifestyle scale (p=۰.۰۰۰۱) and all its subscales including availability of nutrition (p=۰.۰۰۰۱), social pressures (p=۰.۰۰۰۱), physical discomfort (p=۰.۰۰۶), negative emotions (p=۰.۰۰۲) and positive entertaining activities (p=۰.۰۰۰۱). Conclusion: Including motivational interview in usual weight controlling programs can increase weight self-efficacy lifestyle as a predicting index of losing weight.

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Keywords: Motivational Interviewing ، self-efficacy ، Life style ، Overweight ، Obesity