Articlebronze2015

Effect of Motivational Interviewing on a Weight Loss Program Based on the Protection Motivation Theory

Kamal Mirkarimi · Firoozeh Mostafavi · Samira Eshghinia · Mohammad Ali Vakili · Rahman Berdi Ozouni‐Davaji · Mohammad Aryaie

38 citations0/0 files storedIranian Red Crescent Medical Journal

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Behavioral Health and Interventions Obesity, Physical Activity, Diet Obesity and Health Practices

Abstract

BACKGROUND: The prevalence of overweight and obesity is on the increase the world over, which imposes an ever-increasing burden on societies and health care systems. OBJECTIVES: This study sought to investigate the effect of motivational interviewing (MI) on a weight-loss program based on the protection motivation theory (PMT). PATIENTS AND METHODS: This randomized clinical trial study, comprising pretest-posttest with a control group, was conducted on 150 overweight and obese women attending a private nutrition clinic for the first time. Samples were randomly selected using the clinic's records and then allocated to three groups (50 women in each group) receiving: 1) a standard weight-control program; 2) motivational interviewing; and 3) MI plus intention intervention. Data were collected using a researcher-made questionnaire through in-person interviews and were analyzed using SPSS (version 11) and statistical tests, including the Kruskal-Wallis test, one-way analysis of variance, paired t-test, and linear regression model. RESULTS: In the two intervention groups, the PMT construct scores, namely susceptibility (P = 0.001), severity (P = 0.001), rewards (P =0.004), self-efficacy (P = 0.001), response efficacy (P = 0.001), and costs (P = 0.014), were significantly increased compared to those in the control group. The anthropometric status was statistically significant in the MI group (P = 0.001) and the MI plus intention-intervention group (P = 0.001) at 2 months' follow-up, while in the control group, weight was meaningfully different after the intervention (P = 0.027). Weight was different between the groups after the intervention, with the Tukey test demonstrating that the differences were statistically significant between the control group and the MI group. CONCLUSIONS: Our results demonstrated that MI, combined with the implementation of intention intervention, increased weight loss and PMT construct scores in our study population.

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References

2005Motivational interviewing: a systematic review and meta-analysis.2008Motivational interviewing in health care: helping patients change behavior 2008Motivational Interviewing in Health Care: Helping Patients Change Behavior 1999Health Behavior Change: A Guide for Practitioners 2002Combining motivational and volitional interventions to promote exercise participation: Protection motivation theory and implementation intentions 2001A multidimensional meta-analysis of treatments for depression, panic, and generalized anxiety disorder: An empirical examination of the status of empirically supported therapies.2009Review of Motivational Interviewing in promoting health behaviors 2002A multi-dimensional meta-analysis of treatments for depression, panic, and generalized anxiety disorder: An empirical examination of the status of empirically supported therapies

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