The Effect of Internet-Based Intervention on Lifestyle andHealthy Nutrition Habits of Women in North of Iran: AField-Based Trial Study

Background: a healthy lifestyle based on healthy eating habits and appropriate physical activityduring different periods of life, bring healthy old age to women through preventing overweightor maintaining a healthy weightobjectives: this study was aimed to determine the effect of internet-based intervention on thelifestyle and healthy eating habits of women in northern iran.materials & methods: the present field-trial study was conducted on 268 women who weremembers of population of mental health assistants from november 2014 to may 2015. theeducational intervention was carried out through a website containing information on healthylifestyle, nutrition, and cooking methods of various healthy foods. the participants of theintervention group were also received their special diet. all participants were evaluated after3 and 6 months in terms of changes in weight, bmi, systolic and diastolic blood pressure, andnutritional habits. their lifestyle were measured using the standard questionnaire of health-promoting lifestyle profile-ii (hplp-ii). data was analyzed using repeated measure analysisof variance. respectively. after six months, the average bmi of the intervention group decreased from 27.4 (sd=5.3) to 26.3 (sd=5.7) kg/m2 (p<0.001).systolic and diastolic blood pressure of both groups showed a significant decrease (p<0.001). nutrition (f1,266=62.09, p=0.001, η2=0.19)followed by health responsibility (f1,255=30.4, p= 0.001, η2= 0.11) were the most important dimensions of hplp-ii affected by intervention.conclusion: the internet-based educational intervention program, using a bottom-up approach, has a favorable effect on the improvementof the lifestyle and weight loss of the participants. the findings of the present study showed the possibility of using the new e-healthtechnology in order to promote healthy lifestyle and eating habits in women.