BACKGROUND: Regular physical activity is one of the most important factors in creating, maintaining and promoting health, which is not enough in women with diabetes due to the high prevalence of obesity. AIM: This study aimed to determine the effect of educational intervention on self-regulation strategies in promoting physical activity in women with type 2 diabetes. METHODS: This study was a randomized controlled trial in which 82 women with type 2 diabetes were allocated randomly to intervention and control groups. Data collection tools consisted of questionnaires to assess knowledge, goal setting, planning and physical activity. Educational intervention to promote physical activity was performed in 7 sessions of 60-minute through goal setting and planning for physical activity and behavioural self evaluation. Program evaluation was performed before and immediately after intervention and at follow-up period. The data were analysed with SPSS software Version 11.5 using repeated measures ANOVA and T tests (p < 0.05). RESULTS: The mean age of participants was 49.07 +/- 6.26. The intervention group was significantly different in relation to goals (p < 0.001), planning (p < 0.008), knowledge (p < 0.001), physical activity (p < 0.004) in evaluation period. Also experimental group was significantly decrease in FBS (from 164.78 +/- 46.38) to 150.73 +/- 37.55, p < 0.019) and BMI (from 70.43 +/- 9.93 to 68.39 +/- 6.62, p < 0.001) at the follow up period, the data were analysed using the SPSS software version 11.5, the repeated mager ANOVA, T tests (p < 0.05). RESULTS: The mean age of participants was 49.07 +/- 6.26. The intervention group was significantly different in relation to goals (p < 0.001), planning (p < 0.008), knowledge (p < 0.001), physical activity (p < 0.004) in evaluation period. Also experimental group was significantly decrease in FBS (from 164.78 +/- 46.38 to 150.73 +/- 37.55, p < 0.019) and BMI (from 70.43 +/- 9.93 to 68.39 +/- 6.62, p < 0.001) at the follow up period compared with the time before intervention. CONCLUSION: Educational intervention through self-regulation strategies lead to increase physical activity, improved FBS and BMI in women with type 2 diabetes.

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