فهرست نشریات علمی دسترسی آزاد ایران

BACKGROUND: Sedentary habits may increase the noncommunicable disease risk factors, andfew teens get enough physical activity. Therefore, the current study aimed to examine the effectsof a web‑based intervention on the promotion of physical activity among adolescents using thetranstheoretical model (TTM).METHODS AND MATERIALS: A quasi‑experimental study was conducted on 278 high school studentswho were randomly allocated into one of the three groups: two web‑based intervention groups. Theintervention groups 1 and 2 received education through web (www.salamat.family), but the secondgroup received educational strategies based on TTM. Five questionnaires were applied two timesbefore the intervention and 6 months after the intervention. And, in the control group, the data werecollected using stage of exercise behavior change questionnaire and the International Physical ActivityQuestionnaire. Student’s t‑test and two‑way analysis of variance, and McNemar’s test were appliedto compare before and after the intervention. P < 0.05 was considered statistically significant.RESULTS: The mean differences for TTM constructs related to exercise behaviors (processes ofchange, self‑efficacy, and decisional balance) in intervention groups 1 and 2 were very higher thanthe control group. Participants in intervention groups 1 and 2 who had low or moderate physicalactivity before the intervention were placed in high physical activity after it.CONCLUSION: According to the obtained results, education on PA based on website effective, butif we use education based on TTM, it will be more useful on the behavior.