Introduction: Due to the high prevalence of physical inactivity in Iran, especially among women, this study was conducted to assess the effect of educational program based on BASNEF model on physical activity among working women in Hamadan university of Medical Sciences.
 
Materials & methods: This study was an experimental research in 2011 which was performed on 80 working women in Hamadan University of Medical Sciences in two groups of intervention and control. Through a questionnaire based on BASNEF model components of this model were measured before and after intervention .The behaviors section was measured by means of International Physical Activity Questionnaire (IPAQ).The instruments were administrated in pre-test and post-test experimental design. Data were analyzed using SPSS16.
 
Findings: After intervention the mean scores of BASNEF components Included Knowledge, attitudes, subjective norms, and enabling factors respectively (experimental group: before intervention: 62.50, 64.8, 46.6 and 77/25, One month after the intervention: 48.56, 81.86, 56.8 and 75.19, two month after the intervention: 94.17, 82.53, 69.2 and 74.85;) were significantly more in experimental group as comparing with control group (p<0.001) .The experimental group participation in regular physical activity was significantly greater than that of control group (p=0.003).
 
Discussion & conclusions: BASNEF model can effectively include health education models to improve and enhance the performance of women employed in regular physical activity is as per international standard.