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Web-based intervention on the promotion of physical activity among Iranian youth using the transtheoretical model by Roya Kelishadi; Asiyeh Pirzadeh; Fereshteh Zamani; Mehri Khoshali is a Medicine article available to read on EtoBox.

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## BACKGROUND: Sedentary habits may increase the noncommunicable disease risk factors, and few teens get enough physical activity. Therefore, the current study aimed to examine the effects of a web-based intervention on the promotion of physical activity among adolescents using the transtheoretical model (TTM). ## METHODS AND MATERIALS: A quasi-experimental study was conducted on 278 high school students who were randomly allocated into one of the three groups: two web-based intervention groups. The intervention groups 1 and 2 received education through web (www.salamat.family), but the second group received educational strategies based on TTM. Five questionnaires were applied two times before the intervention and 6 months after the intervention. And, in the control group, the data were collected using stage of exercise behavior change questionnaire and the International Physical Activity Questionnaire. Student's __t__-test and two-way analysis of variance, and McNemar's test were applied to 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 of

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Author

Roya Kelishadi; Asiyeh Pirzadeh; Fereshteh Zamani; Mehri Khoshali

Published

2020

Language

EN

Field

Medicine (Health Sciences)