·························································································································································································· 53 J. Biol. Today's World. 2014 Mar; 3 (3): 53-56 ISSN 2322-3308 http://www.journalbio.com Received: 17 January 2014 • Accepted: 22 February 2014 Research Understanding Physical Activity Behavior among Iranian Type 2 Diabetes Patients: a Test of the Trans theoretical Model Mari Ataee 1 , Fazel ZinatMotlagh 2 , Abbas Aghaei 3 , Mohammad Reza Mohammadi 4 , Mohammad Mahboubi 5 , Touraj Ahmadi-Jouybari 6* , Zahra Shamohammadi 7 1 Internist, Clinical Research Development Center, Imam Khomeini Hospital, Kermanshah University of Medical Sciences, Kermansha h, Iran 2 PhD Student of Health Education & Promotion, Social Determinants of Health Research Center, Yasuj University of Medical Sciences, Yasuj, Iran 3 PhD Student of Epidemiology, Clinical Research Development Center, Imam Khomeini Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran 4 MD, Yasuj University of Medical Sciences, Yasuj, Iran 5 Ph.D of Health Services Administration, Kermanshah University of Medical Sciences, Kermanshah, Iran 6 Internist, Clinical Research Development Center, Imam Khomeini Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran 7 Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran *correspondence should be addressed to Touraj Ahmadi-Jouybari, Clinical Research Development Center, Imam Khomeini Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran; Tell: +98831 7272049; Fax: +98831 7272049; Email: dr.ahmadi_jouybari@yahoo.com. ABSTRACT Physical inactivity was a major underlying factor for Type 2 diabetes patients. The aim of this study was to determine factors related to physical activity based on trans theoretical model among sample of Iranian diabetic patients. This cross-sectional study was conducted among 301 type 2 diabetics patient in Gachsaran, Iran. Data collection based on an interview; were analyzed by SPSS version 21 using bivariate correlations, and ordinal regression statistical tests at 95% significant level. Result showed, 19.6% of participants have a physi- cal activity (moderate or severe). Ordinal regression analysis showed self-efficacy and behavior process of change was the best predic- tors for physical activity among diabetic patients. Our findings recommended in physical activity promotion program for diabetic patients should be focus on increasing self-efficacy toward doing physical activity and attention to behavior process of change. Key words: Diabetes Patients, Physical Activity, Self-efficacy Copyright © 2014 Mari Ataee et al. This is an open access article distributed under the Creative Commons Attribution License. 1. INTRODUCTION iabetes is the most common chronic disease with devas- tating complications, which the burden of type 2 diabe- tes is increasing worldwide (1, 2). Type 2 diabetes is a serious chronic disease and a major health problem throughout the world (3, 4). Several recent alarming projections suggest that the epidemic of type 2 diabetes will become even worse in the near future (5). Estimated that the worldwide prevalence of dia- betes would nearly, double by 2030 and affecting 366 million people. These figures are also in accordance with those from the International Diabetes Federation (IDF) that predict 333 million people will suffer from diabetes by 2025 (6). Diabetes repre- sents a major problem for developing countries, being estimated that just China and India combined will be home to 24% of all subjects with diabetes worldwide by 2050 (7, 8). More than 270 million of which will occur in developing countries (5). Of this number 10-15 percent type 1 diabetes and 85-90 percent have type 2 diabetes (9, 10). According to the (WHO) the number of cases of type 2 diabetes in Iran were 2103000 in year 2000 and its will rise to 6421000 by the year 2030 (5, 6). The prevalence of type 2 diabetes reported in Iran 2-3 percent in throughout population and above 30 age 7.3 percent (3). It has now become evident that type 2 diabetes is reaching epidemic proportions in the worldwide; the underlying causes are multifactorial, but overweight, physical inactivity and genetic predisposition are believed to be major underlying factors (1). Paradoxically, de- spite extensive data indicating the importance of physical activi- ty and exercise, 60–80% of adults with type 2 diabetes do not exercise sufficiently, and adherence to exercise programs is low in these patients (11). The relationship between physical activi- D